Patents

Patents (93)

• P93. Invertor: Kang Su Kim, Sang-Hoon Lee, Jae Min Kim, “Software for Equivalent SDOF Structural Analysis under Blast Loading,” Nation No. 218 (Korea), Aug. 27 2025, Registered No. C-2025-033655

• P92. Invertor: Kang Su Kim, Yeongtaek Yoon, Hoseong Jeong, Jae Min Kim, Sangseok Han “Image-Based Combined Non-Destructive Testing Program for Diagnosing Fire-Damaged Concrete,” Nation No. 218 (Korea), Aug. 12, 2025, Application No. 10-2025-0111640.

• P91. Invertor: Kang Su Kim, Su Min Yoon, Yoon-Jung Lee, Hoseong Jeong, Inwook Heo “Mold for Measuring Concrete Properties with Ultrasonic Transmitter and Receiver with Adjustable Distance,” Nation No. 218 (Korea), Apr. 18, 2025, Application No. 10-2025-0051152.

• P90. Inventor:  Kang Su Kim, Yoon-Jung Lee, Sang-Hoon Lee, “Curvature Control Equipment of Concrete Transfer Hose for Maintaining Extrudability of 3D Concrete Printing,” Nation No. 218 (Korea), Feb. 13, 2025, Application No. 10-2025-0018539.

• P89. Inventor: Seung-Ho Choi, Darkhanbat Khaliunaa, Inwook Heo, Kang Su Kim, “Method for Egress Safety Assessment of Underground Tunnel using Artificial Neural Network,” Nation No. 218 (Korea), Dec. 05, 2024, Application No. 10-2024-0179802.

• P88. Intervor: Kang Su Kim, Hoseong Jeong, Byungjun Jung, "Sensor for Monitoring Rebr Corrosion and Method of Preparing the Same," Nation No. 218 (Korea), Dec. 09, 2022, Application No. 10-2022-0171372, Oct. 11, 2024, Registered No. 10-2718444.

• P87. Intervor: Kang Su Kim, Sang-Hoon Lee, "Response Analysis Method of Blast Resistant Structure considering Dynamic Increase Factor," Nation No. 218 (Korea), Jul. 08, 2024, Application No. 10-2024-0089355. May. 13, 2025, Registered No. 10-2809268.

• P86. Invertor: Sung Bae Kim, Won Rok Lee, Kang Su Kim, Inwook Heo, "Steel Formwork Beam with Detachable Lower Plate,"  Nation No. 218(Korea), Nov. 02, 2023, Application No. 10-2023-0149774.

• P85. Invertor: Kang Su Kim, Hoseong Jeong, Byungjun Jung, “Compound for Concrete Chloride Monitoring Sensor, Method of Preparing the Same and Sensor by Using the Same,” Nation No. 218(Korea), Dec. 09, 2022, Application No. 10-2022-0171369, Jul. 31, 2023, Registered No. 10-2562963.

• P84. Invertor: Kang Su Kim, Hoseong Jeong, Byungjun Jung, “Compound for Concrete Neutralization Monitoring Sensor, Method of Preparing the Same and Sensor by Using the Same,” Nation No. 218(Korea), Dec. 09, 2022, Application No. 10-2022-0171367, Jul. 31, 2023, Registered No. 10-2562962.

• P83. Inventor: Kang Su Kim, Hoseong Jeong, Byungjun Jung, “Sensor for Monitoring Rebar Corrosion and Method of Preparing the Same,” Nation No. 218 (Korea), Dec. 09, 2022, Application No. 10-2022-0171372, Oct. 11, 2024, Registered No. 10-2718444.

• P82. Invertor: Kang Su Kim, Darkhanbat Khaliunaa, Inwook Heo, Seung-Ho Choi, "Computer readable storage medium of recording the Program of Available Safe Egress Time Estimation for Multiplex Buildings using Artificial Neural Networks,"  Nation No. 218(Korea), Sept. 22, 2022, Application No. 10-2022-0119028.

• P81. Invertor: Kang Su Kim, Seok-In Lee, Jae-Hyun Kim, Seung-Ho Choi, “Variable Plant Structure System to Reduce Reflected Pressure Caused by Internal Explosion,” Nation No. 218(Korea), Jun. 17, 2022, Application No. 10-2022-0074117. Aug. 29,2024, Registered No. 10-2702417

• P80. Intervor: Kang Su Kim, Hoseong Jeong, Byungjun Jung, "pH Sensor and Manufacturing System Thereof," Nation No. 218 (Korea), Mar. 29, 2022, Application No. 10-2022-0038903, Dec. 5, 2022, Registered No. 10-2475804, Jan. 16, 2024, Registered No. 10-2627183.

• P79. Intervor: Kang Su Kim, Darkhanbat Khaliunaa, Inwook Heo, "Available Safe Egress Time Estimation Method for Multiplex Building Using Artificial Neural Networks," Nation No. 218 (Korea), Dec. 22, 2021, Application No. 10-2021-0184416.

• P78. Intervor: Kang Su Kim, Yoon-Jung Lee, Sang-Hoon Lee, "Shear Strength Test Equipment for a 3D Printed Concrete Member," Nation No. 218 (Korea), Dec. 22, 2021, Application No. 10-2021-0184417, Jun. 23, 2023, Registered No. 10-2548792.

• P77. Inventor: Soo Yeon Seo, Kang Su Kim, Hoseong Jeong, Byungjun Jung, "pH sensing membrane with improved leaching resistance of indicator and manufacturing method thereof," Nation No. 218 (Korea), Oct. 07, 2021, Application No. 10-2021-0133199.

• P76. Inventor: Kang Su Kim, Sang-Hoon Lee, “Apparatus for Performance Enhancement of Blast Wall Structure Using Deformation Measurement Instrument,” Nation No. 218 (Korea), Jun. 15, 2021, Application No. 10-2021-0077718, Aug. 31, 2021, Registered No. 10-2296984.

• P75. Inventor: Kang Su Kim, Seung-Ho Choi, “Repairable PC Connection for Plant Pipe-Rack Structure and Construction Method Thereof,” Nation No. 218 (Korea), Jun. 2, 2021, Application No. 10-2021-0071818.

• P74. Inventor: Kang Su Kim, MinSeok Kim, JinHo Kim, Sun-Jin Han, “Rough Surface Treatment and Automation Method of Rough Surface Treatment for Concrete Members Manufactured in Dry Concrete,” Nation No. 218 (Korea), Jan. 20, 2021, Application No. 10-2021-0007975.

• P73. Inventor: Kang Su Kim, JinHo Kim, Ho-Seong Jeong, “AI Based Profile Control System for 3D Concrete Printer,” Nation No. 218 (Korea), Dec. 31, 2020, Application No. 10-2020-0188925. Jan. 5, 2023, Registered No. 10-2486714.

• P72. Inventor: Kang Su Kim, Jin-Ha Hwang, Seung-Ho Choi, Jae-Hyun Kim, Kwang-Ryang Chung, Woon-Taek Woo, Jang-Won Chung, Gi-Yung Jung, “Precast Concrete Beam of End Compressed Type and Floor Slab Construction Method Using the Same,” Nation No. 218 (Korea), Oct. 31, 2019, Application No. 10-2019-0137815.

• P71. Inventor: Kang Su Kim, Jin-Ha Hwang, Seung-Ho Choi, Jae-Hyun Kim, “Multi-Angle Jacking Device Introducing Prestressing Force of Steel Strands by Hinge Module,” Nation No. 218 (Korea), Oct. 30, 2019, Application No. 10-2029-0136574, Jun. 11, 2021, Registered No. 10-2266454.

• P70. Inventor: Kang Su Kim, Min-kook Park, Jae-Hoon Chung, “Laminated Composite Beam System Using Precast Concrete Panels,” Nation No. 218 (Korea), Apr. 2, 2019, Application No. 10-2019-0038447, Jul. 14, 2020, Registered No. 10-2136025.

• P69. Inventor: Kang Su Kim, Hae-Chang Cho, Sang-Hoon Lee, Darkhanbat Khaliunaa, “Carbonation Depth Estimation System for Concrete Structures Using Neuro-Fuzzy Theory,” Nation No. 218 (Korea), Apr. 2, 2019, Application No. 10-2019-0038442.

• P68. Inventor: Kang Su Kim, Min-kook Park, Jae-Hoon Chung, “Fiber Sorting Tool for Casting FRC,” Nation No. 218 (Korea), Feb. 26, 2019, Application No. 10-2019-0022420, Jul. 02, 2020, Registered No. 10-2132116.

• P67. Inventor: Kang Su Kim, Seung-Ho Choi, “Air Injection Type Stake Form for Vertically or Horizontally Separate Placement of Concrete, and its Installation Method,” Nation No. 218 (Korea), Feb. 22, 2019, Application No. 10-2019-0021425, Jan. 29, 2021, Registered No. 10-2212307.

• P66. Inventor: Kang Su Kim, Seung-Ho Choi, Jae-Hyun Kim, Kwang-Ryang Chung, Woon-Taek Woo, Jang-Won Chung, Gi-Yung Jung, “Post-Tension Press Method for Intrusion Block of Grout in PC Joint Connection,” Nation No. 218 (Korea), Dec. 7, 2018, Application No. 10-2018-0156628, May 25, 2020, Registered No. 10-2116868.

• P65. Inventor: Kang Su Kim, Hae-Chang Cho, Hyun Kang, Darkhanbat Khaliunaa, “Heating Temperature Estimation System of Fire Damaged Reinforced Concrete Structures Using Neuro-Fuzzy Theory,” Nation No. 218 (Korea), Jul. 23, 2018, Application No. 10-2018-0084925, Mar. 18, 2020, Registered No. 10-2093029.

• P64. Inventor: Kang Su Kim, Sang Won Han, Yoon-Jung Lee, Seung-Ho Choi, “Multi-Functional Extruder Suitable for Concrete Rapid Prototyping System,” Nation No. 218 (Korea), May 29, 2018, Application No. 10-2018-0060962, Oct. 21, 2019, Registered No. 10-2036571.

• P63. Inventor: Kang Su Kim, Min-kook Park, Jae-Hoon Chung, “Bendable Precast Concrete Panel and Construction Method Using Thereof,” Nation No. 218 (Korea), Feb. 28, 2017, Application No. 10-2018-0024329, Mar. 18, 2020, Registered No. 10-2093011.

• P62. Inventor: Kang Su Kim, Sun-Jin Han, Seung-Ho Choi, Seok-Dong Choi, “Composite Precast Wall Systems for Easy Lifting and Installation,” Nation No. 218 (Korea), Dec. 29, 2017, Application No. 10-2017-0183442, Nov. 15, 2019, Registered No. 10-2047275.

• P61. Inventor: Kang Su Kim, Hae-Chang Cho, Hyun Kang, Jin-Su Song, “Dust Suction Device for Concrete Safety Diagnosis,” Nation No. 218 (Korea), Dec. 7, 2017, Application No. 10-2017-0167168.

• P60. Inventor: Kang Su Kim, Sun-Jin Han, Hyun-Mo Yang, Seok-Dong Choi, “Double Wall Structure with Resisting Shear Force Member,” Nation No. 218 (Korea), Nov. 29, 2017, Application No. 10-2017-0161365, Oct. 17, 2019, Registered No. 10-2035495.

• P59. Inventor: Kang Su Kim, Sang Won Han, Ho-Seong Jeong, Jae-Yuel Oh, “Concrete 3D Printing Device Having Shear Connector Insert Functions,” Nation No. 218 (Korea), Nov. 21, 2017, Application No. 10-2017-0155828, May 13, 2019, Registered No. 10-1979727.

• P58. Inventor: Kang Su Kim, Seung-Ho Choi, Jin-Ha Hwang, Kwang-Ryang Chung, Woon-Taek Woo, Chang-Hwan Lee, Jang-Won Chung, Gi-Yung Jung, “Connection of Compressed Joint by Post-Tensioning between PC-Column and PC Beam, and Construction Method Thereof,” Nation No. 218 (Korea), Oct. 26, 2017, Application No. 10-2017-0140402, Jan. 23, 2020, Registered No. 10- 2072043.

• P57. Inventor: Kang Su Kim, Min-kook Park, Hyo-Eun Joo, “Precast Concrete Hollow Core Slab by Extrusion,” Nation No. 218 (Korea), Jun. 27, 2017, Application No. 10-2017-0081293, May 14, 2019, Registered No. 10-1980435.

• P56. Inventor: Kang Su Kim, Min-kook Park, Sun-Jin Han, Hyo-Eun Joo, “Steel Composite Hollow Core Slab with Topping Concrete,” Nation No. 218 (Korea), Apr. 27, 2017, Application No. 10-2017- 0054533, Apr. 15, 2019, Registered No. 10-1970873.

• P55. Inventor: Kang Su Kim, Jae-Yuel Oh, Sun-Jin Han, “Prestressed Hybrid Wide Flange Girder System Suitable for Resisting Negative Moments at Construction Stage,” Nation No. 218 (Korea), Dec. 16, 2016, Application No. 10-2017-0172379.

• P54. Inventor: Kang Su Kim, Jae-Yuel Oh, Ho-Seong Jeong, “Polymer Cement Concrete 3D Printer and Concrete Structures Manufacturing Method Using Thereof,” Nation No. 218 (Korea), Jul. 11, 2016, Application No. 10-2017-0087590, Dec. 29, 2017, Registered No. 10-1815513.

• P53. Inventor: Kang Su Kim, Jae-Yuel Oh, Sun-Jin Han, “Prestressed Hybrid Composite Girder Utilizing Truss Action,” Nation No. 218 (Korea), Jul. 25, 2016, Application No. 10-2016-0093963.

• P52. Inventor: Kang Su Kim, Il-Sup Choi, Min-kook Park, Seok-Dong Choi, Young-Ri Cho, “Composite Girder Utilizing Kaiser Deck Manufacturing Method,” Nation No. 218 (Korea), May 9, 2016, Application No. 10-2016-0056220, Mar. 6, 2018, Registered No. 10-1837494.

• P51. Inventor: Kang Su Kim, “Non-Welded CFT Column with Hinge Type Connection,” Nation No. 218 (Korea), Apr. 22, 2016, Application No. 10-2016-0049647.

• P50. Inventor: Kang Su Kim, Min-kook Park, Hyunjin Ju, Il-Sup Choi, Seok-Dong Choi, “PC Flange-Steel Web Composite Girder Being Able to Absorb Camber and Its Manufacturing Method,” Nation No. 218 (Korea), Dec. 2, 2015, Application No. 10-2016-0170880, Jul. 6, 2017, Registered No. 10-1757254.

• P49. Inventor: Won-Rok Lee, Kang Su Kim, Jae-Yuel Oh, “Structural Mold for Reinforced Concrete Column Using Profiled Steel Plate,” Nation No. 218 (Korea), Oct. 2, 2015, Application No. 10-2015-0139357, Jun. 23, 2017, Registered No. 10-1752275.

• P48. Inventor: Won-Rok Lee, Kang Su Kim, Jae-Yuel Oh, Sang-Hum Cho, “Apparatus for Connecting of Reinforcing Bar,” Nation No. 218 (Korea), Oct. 2, 2015, Application No. 10-2015-0139359, Jun. 23, 2017, Registered No. 10-1752279.

• P47. Inventor: Kang Su Kim, Jae-Yuel Oh, Sun-Jin Han, Jin-Uk Cheon, Dong-Young Seo, Young-Ho Kim, “Hybrid Beam with Wide PSC Lower Flange and Enlarged Section Upper Flange and Structure Frame Using the Same,” Nation No. 218 (Korea), Oct. 2, 2015, Application No. 10-2015-0139358, Jun. 23, 2017, Registered No. 10-1752285.

• P46. Inventor: Kang Su Kim, Deuck Hang Lee, Seung-Ho Choi, “Manufacturing Method of Steel Fiber Reinforced Mortar Composites and its Production Member,” Nation No. 218 (Korea), Aug. 27, 2015, Application No. 10-2015-0121229, Apr. 12, 2017, Registered No. 10-1728231.

• P45. Inventor: Kang Su Kim, Deuck Hang Lee, Hyunjin Ju, Sun-Jin Han, “Light Weight Precast Beam with Void Implementing Arch Mechanism,” Nation No. 218 (Korea), Aug. 21, 2015, Application No. 10-2015-0118262, Jul. 31, 2017, Registered No. 10-1765389.

• P44. Inventor: Kang Su Kim, Hae-Chang Cho, Hyun-Cheol Park, “Damage Assessment System of Reinforced Concrete Structures Exposed to Fire and Method for Assessing Damage Using The Same,” Nation No. 218 (Korea), Jun. 11, 2015, Application No. 10-2015-0082668.

• P43. Inventor: Kang Su Kim, Hyunjin Ju, Jae-Yuel Oh, Deuck Hang Lee, Il-Sup Choi, Seok-Dong Choi, Young-Bae Park, “Precast Concrete Beam with Variable Cross Section,” Nation No. 218 (Korea), May 21, 2015, Application No. 10-2015-0071052, Feb. 26, 2018, Registered No. 10-1834423.

• P42. Inventor: Kang Su Kim, Hyunjin Ju, Jae-Yuel Oh, Deuck Hang Lee, Il-Sup Choi, Seok-Dong Choi, Young-Bae Park, “PC Composite Beam System,” Nation No. 218 (Korea), May 21, 2015, Application No. 10-2015-0071049, Feb. 21, 2017, Registered No. 10-1710571.

• P41. Inventor: Kang Su Kim, Hyunjin Ju, Deuck Hang Lee, Il-Sup Choi, Seok-Dong Choi, “Steel-PC Hybrid Beam and Manufacturing Method Thereof,” Nation No. 218 (Korea), May 7, 2015, Application No. 10-2015-0063716, Jun. 29, 2016, Registered No. 10-1636246.

• P40. Inventor: Kang Su Kim, Sang-Hum Cho, “Damage Minimizing Anchorage for Existing Structures and its application for Post-Tensioning Method,” Nation No. 218 (Korea), Jan. 13, 2015, Application No. 10-2015-0006099, Jun. 7, 2016, Registered No. 10-1630112.

• P39. Inventor: Kang Su Kim, Deuck Hang Lee, “Precast Concrete Structure with Monolithic Beam-Column Connection and Location Adjustable Plastic Hinge,” Nation No. 218 (Korea), Jan. 13, 2015, Application No. 10-2015-0006098, Oct. 24, 2016, Registered No. 10-1670575.

• P38. Inventor: Kang Su Kim, Jin-Ha Hwang, Deuck Hang Lee, “Hollow PC Column for Saving Construction Period, SRC Column with the Hollow PC, Joint Structure of SRC and Beam and Method for Constructing Frame of Buildings,” Nation No. 218 (Korea), Dec. 18, 2014, Application No. 10-2014-0183596, Apr. 7, 2016, Registered No. 10-1612637.

• P37. Inventor: Kang Su Kim, Deuck Hang Lee, Jin-Ha Hwang, Seung-Ho Choi, Kwon-Yong Keun, “Seismic Reinforcement Using Precast Concrete Wall Outside of Building,” Nation No. 218 (Korea), Dec. 3, 2014, Application No. 10-2014-0172520, Oct. 24, 2016, Registered No. 10-1670553.

• P36. Inventor: Kang Su Kim, Deuck Hang Lee, Seung-Ho Choi, “Reinforcing Method by External Precast Concrete Wall Panel Using Prestressing Strands,” Nation No. 218 (Korea), Nov. 7, 2014, Application No. 10-2014-0154441, Oct. 24, 2016, Registered No. 10-1670549.

• P35. Inventor: Kang Su Kim, Jae-Yuel Oh, Sang-Hum Cho, “Nut type External Post-Tensioning Anchorage with Circular Steel Bar and Strengthening Method,” Nation No. 218 (Korea), Sept. 30, 2014, Application No. 10-2014-0131736, Sept. 3, 2015, Registered No. 10-1552066.

• P34. Inventor: Kang Su Kim, Won-Rok Lee, Jae-Yuel Oh, Hyun-Kwang Kim, “Angle Adjustable Tendon Anchoring Apparatus for External Post-Tensioning,” Nation No. 218 (Korea), Apr. 1, 2014, Application No. 10-2014-0038863, Aug. 27, 2015, Registered No. 10-1549782.

• P33. Inventor: Kang Su Kim, Jae-Yuel Oh, Seung-Tae Yi, Won-Gu Lee “Method for Manufacturing Prestressed Members without Prestressing Bed,” Nation No. 218 (Korea), Nov. 5, 2013, Application No. 10-2013-0133534, Jun. 26, 2015, Registered No. 10-1533324.

• P32. Inventor: Bong-Gweon Kim, Sang-Guk Kang, Ju-Hyeuk Im, Su-Youn Jang, Nam-Cul Choi, Min-Kook Park, Deuck Hang Lee, Kang Su Kim, “Long Span Horizontal Member System Using the Assembly Type Precast Concrete Member,” Nation No. 218 (Korea), Oct. 22, 2013, Application No. 10-2013-0125832, Jun. 15, 2015, Registered No. 10-1530332.

• P31. Inventor: Bong-Gweon Kim, Sang-Guk Kang, Ju-Hyeuk Im, Su-Youn Jang, Nam-Cul Choi, Min-Kook Park, Deuck Hang Lee, Kang Su Kim, “System Forms for Manufacturing Assembly Type PC Members and Method of Producing PC Members Using the Same,” Nation No. 218 (Korea), Sept. 30, 2013, Application No. 10-2013-0116114, Oct. 8, 2014, Registered No. 10-1451267.

• P30. Inventor: Kang Su Kim, Jeom-Min La, “High Pressure Panel Test System Using Pressure Control Module,” Nation No. 218 (Korea), Aug. 30, 2013, Application No. 10-2013-0103862, Oct. 31, 2014, Registered No. 10-1459067.

• P29. Inventor: Kang Su Kim, Jeom-Min La, Jae-Yuel Oh, “Apparatus for Pre-Fixing Plate and Method For Pre-Fixing Plate Using the Same,” Nation No. 218 (Korea), May 30, 2013, Application No. 10-2013-0061643, Feb. 4, 2016, Registered No. 10-1593942.

• P28. Inventor: Nam-Cheol Choi, Ju-Hyeuk Im, Yong-Tae Kim, Yong-Beom Park, Su-Youn Jang, Kang Su Kim, “Improving Structure Integrity with Topping Concrete and Improved Shear Load Carrying of Hollow Slab Structure Using Shear Reinforcing Bar and Constructing Method Using the Same,” Nation No. 218 (Korea), Feb. 7, 2013, Application No. 10-2013-0013950, Oct. 2, 2014, Registered No. 10-1449708.

• P27. Inventor: Il-Sup Choi, Kang Su Kim, “Rib Optimized Slab,” Nation No. 218 (Korea), May 2, 2012, Application No. 10-2012-0046239, Jan. 3, 2013, Registered No. 10-1220678.

• P26. Inventor: Kang Su Kim, Deuck Hang Lee, “Surface Treatment Method for Increasing Shear Bond Strength of Precast Concrete Member Manufactured by Extrusion,” Nation No. 218 (Korea), Apr. 26, 2012, Application No. 10-2012-0043816, Jun. 27, 2014, Registered No. 10-1415369.

• P25. Inventor: Kang Su Kim, Jeom-Min La, “Multipurpose Support Point Device for Rotating and Moving,” Nation No. 218 (Korea), Apr. 18, 2012, Application No. 10-2012-0040358, Nov. 13, 2013, Registered No. 10-1331308.

• P24. Inventor: Kang Su Kim, Jeom-Min La, “Pressure Control Module and Accurate Servo Control Hydraulic Pressure System Having the Same,” Nation No. 218 (Korea), Mar. 2, 2012, Application No. 10-2012-0021561, Feb. 3, 2014, Registered No. 10-1360598.

• P23. Inventor: Kang Su Kim, Young-Taek Oh, “Composite Beam with Slit-typed Web,” Nation No. 218 (Korea), Jan. 2, 2012, Application No. 10-2012-0000090, Nov. 7, 2013, Registered No. 10-1329434.

• P22. Inventor: Il-Sup Choi, Kang Su Kim, “Joint Structure of Precast Concrete Column and Girder for Reducing the Amount of Reinforcement and the Section Size of Long Span Precast Concrete Girder,” Nation No. 218 (Korea), Dec. 26, 2011, Application No. 10-2011-0142206, Dec. 5, 2013, Registered No. 10-1340748.

• P21. Inventor: Kang Su Kim, Il-Sup Choi, “Non-Support Type Prestressed Form and Construction Structure Using the Same,” Nation No. 218 (Korea), Dec . 23, 2011, Application No. 10-2011-0141658, Nov. 7, 2013, Registered No. 10-1329383.

• P20. Inventor: Il-Sup Choi, Kang Su Kim, “Joint Structure of Precast Concrete Column and Beam by Using One Unit Beam,” Nation No. 218 (Korea), Nov. 1, 2011, Application No. 10-2011-0113012, Nov. 7, 2013, Registered No. 10-1329483.

• P19. Inventor: Kang Su Kim, Young-Taek Oh, Il-Sup Choi, “Rotatable Jacking Accessary for Prestressing Concrete,” Nation No. 218 (Korea), Sept. 23, 2011, Application No. 10-2011-1255481, Apr. 10, 2013, Registered No. 10-1255481.

• P18. Inventor: Kang Su Kim, Young-Taek Oh, Il-Sup Choi, “Anchorage Sets Free from Prestressing Direction and Anchorage Structures for Atypical Concrete Structures,” Nation No. 218 (Korea), Sept. 23, 2011, Application No. 10-2011-0096105, Apr. 10, 2013, Registered No. 10-1255471.

• P17. Inventor: Kang Su Kim, Young-Taek Oh, “Active Deflection Control Prestressed Beam,” Nation No. 218 (Korea), Apr. 27, 2011, Application No. 10-2011-0039736, Apr. 10, 2013, Registered No. 10-1255445.

• P16. Inventor: Kang Su Kim, Young-Taek Oh, Jeom-Min La, “Anchorage Assembles and Structures for Prestressing Atypical Concrete Structures,” Nation No. 218 (Korea), Apr. 5, 2011, Application No. 10-2011-0031409, Jun. 3, 2013, Registered No. 10-1273160.

• P15. Inventor: Kang Su Kim, Young-Taek Oh, “Attachment for Jacking Operation of Densely Placed Prestressing Tendons,” Nation No. 218 (Korea), Apr. 5, 2011, Application No. 10-2011-0031410, May 8, 2013, Registered No. 10-1264506.

• P14. Inventor: Kang Su Kim, Sung-Mo Choi, “Built-up Beam having Profiled Steel Web,” Nation No. 218 (Korea), Jun. 30, 2008, Application No. 10-2008-0062421, Jan. 25, 2011, Registered No. 10-1012010.

• P13. Inventor: Kang Su Kim, Sung-Mo Choi, “Prestessed Composite Beam Having Profiled Steel Web,” Nation No. 218 (Korea), Jun. 30, 2008, Application No. 10-2008-0062416, Feb. 7, 2011, Registered No. 10-1014195.

• P12. Inventor: Kang Su Kim, Deuck Hang Lee, “Experimental Device for Measuring Bond Strength of Single Fiber and Specimen Using the Same,” Nation No. 218 (Korea), Jan. 20, 2011, Application No. 10-2011-0005891, Dec. 4, 2012, Registered No. 10-1210694.

• P11. Inventor: Kang Su Kim, Young-Taek Oh, “Prestressed H-section Steel Beam,” Nation No. 218 (Korea), Nov. 17, 2010, Application No. 10-2010-0114205, Dec. 4, 2012, Registered No. 10-1184762.

• P10. Inventor: Kang Su Kim, Young-Taek Oh, Jeom-Min La, “Fine Displacement Measuring Instrument,” Nation No. 218 (Korea), Nov. 17, 2010, Application No. 10-2010-0114206.

• P9. Inventor: Kang Su Kim, Il-Sup Choi, “Method for Estimating Deflections in Reinforced Concrete Beams,” Nation No. 218 (Korea), Feb. 17, 2010, Application No. 10-2010-0014148.

• P8. Inventor: Kang Su Kim, Il-Sup Choi, “Prestressed Steel Concrete Composite Beam,” Nation No. 218 (Korea), Feb. 10, 2010, Application No. 10-2010-0012413, Mar. 5, 2012, Registered No. 10-1125917.

• P7. Inventor: Kang Su Kim, Sung-Mo Choi, “Asymmetric Composite Beam with Corrugated Web,” Nation No. 218 (Korea), Apr. 16, 2008, Application No. 10-2008-0035213, Feb. 3, 2010, Registered No. 10-0941726.

• P6. Inventor: Kang Su Kim, “Steel Built-up Beam and Steel Concrete Composite Beam Using the Same,” Nation No. 218 (Korea), Dec. 10, 2009, Application No. 10-2009-0122362, May 31, 2012, Registered No. 10-1154121.

• P5. Inventor: Kang Su Kim, “Bilateral Anchorage,” Nation No. 218 (Korea), Dec. 10, 2009, Application No. 10-2009-0122361, Apr. 6, 2012, Registered No. 10-1136710.

• P4. Inventor: Kang Su Kim, “Pully Type Bilateral Anchorage and Prestessed Steel Beam Using the Same,” Nation No. 218 (Korea), Feb. 27, 2009, Application No. 10-2009-0017218, Jun. 3, 2011, Registered No. 10-1040817.

• P3. Inventor: Kang Su Kim, “Prestessed Steel Beam Using 3D Cross Type Bilateral Anchorage,” Nation No. 218 (Korea), Feb. 2, 2009, Application No. 10-2009-0017217, Feb. 3, 2012, Registered No. 10-1115160.

• P2. Inventor: Kang Su Kim, Sung-Mo Choi, “Steel Beam and Steel-Concrete Hybrid Structure Using a Folded Steel Plate for Improved Tensile Strength,” Nation No. 218 (Korea), Feb. 13, 2008, Application No. 10-2008-0013073.

• P1. Inventor: Kang Su Kim, Sung-Mo Choi, “Floor Height Reduction Composite Structure Using Asymmetrical Steel Beams,” Nation No. 218 (Korea), Jun. 14, 2007, Application No. 10-2007-0058484.