Patents

Selected Patents

1.  C.-H. Ji , S.-C. Kim, H.-J. Moon, and J.-U. Bu, "A variable focusing Mirror and Camera Module Using Thereof," Korea patent 10-0864691.

2. T.-S. Lim and C.-H. Ji , "Scanning Micromirror," Korea patent 10-0789574, Korea patent pending, 2008-0067064.

3.  C.-H. Ji, "Shutter Apparatus for Micro Camera," Korea patent 10-0775211.

4. M.-H. Ha and C.-H. Ji , "Control apparatus for focus of the camera and its manufacture method," Korea patent pending, 2005-0112153.

5.  C.-H. Ji , "Micro Method for Manufacturing Scanning Micromirror," Korea patent 10-0706319.

6.  C.-H. Ji , "Micro-mirror Device and Micro-mirror Device Array Using the Same," Korea patent 10-0743315, "Micro-mirror Device and Array Thereof," U. S. patent pending, 2006-508821.

7. J-H. Choi, S.-H. Kim, C.-H. Ji , and C.-H. Oh, "Moving Control Apparatus and Method for Camera Lens of the Portable Terminal," Korea patent pending, 2005-059455.

8. S.-H. Kim, J-H. Choi, and C.-H. Ji , "Position Detection Apparatus of Camera Lens in the Mobile Terminal," Korea patent pending, 2005-060002.

9.  C.-H. Ji , "MEMS Scanning Micromirror and Dual-axis Electromagnetic MEMS Scanning Micromirror Device," Korea patent pending, 2005-045822.

10. J-H. Choi, S.-H. Kim, C.-H. Ji , and J.-U. Bu, "Small Form Factor Camera Module with a Mechanical Iris and Shutter," Korea patent pending, 2005-035062.

11. S.-H. Kim, J-H. Choi, C.-H. Ji , S.-C. Kim, and J.-U. Bu, "Small Form Factor Camera Module with a Mechanical Iris and Shutter," Korea patent 10-0760544, U. S. patent pending, 2006-

404905.

12.  C.-H. Ji , S.-H. Lee, and Y. Yee, "Scanning Micromirror Package, Manufacturing Method Thereof, and Optical Scanning Device Thereby," Korea patent 10-0772039, "Scanning Micro-mirror Package, Method for Fabricating the Same, and Optical Scanning Device Employing the Same," U. S. patent pending, 2006-317109.

13.  C.-H. Ji , J.-H. Park, M.-H. Ha, S.-H. Kim, Y. Yee, and J.-U. Bu, "Driving Unit for Movement of Lens," Korea patent 10-0762992, "Lens Driving Device," U. S. patent 7412157.

14. T.-S. Lim, C.-H. Ji , and Y. Yee, "Optical Attenuator," Korea patent pending, 2003-026464.

15.  C.-H. Ji , Y. Yee, and S.-H. Kim, "Micro Actuator for Controlling the Focal Length," Korea patent pending, 2003-039185, "Micro Actuator for Controlling Focal Depth," U. S. patent 7079329.

16.  C.-H. Ji , Y. Yee, and J.-U. Bu, "Electrostatic Dual Axis Micro Mirror and Manufacturing Method Thereof," Korea patent pending, 2002-057057.

17.  C.-H. Ji , Y. Yee, and J.-U. Bu, "Focal Length Control Device of Optical Recorder/Player and Fabrication Method Thereof," Korea patent pending, 2002-065569.

18.  C.-H. Ji , Y. Yee, and J.-U. Bu, "Minute Structure Assembling Optical Fiber," Korea patent pending, 2002-067950.

19.  C.-H. Ji , Y. Yee, J. Choi, and S.-H. Kim, "Electromagnetic Actuator for Reducing the Degeneration of Image Quality in Display Systems," Korea patent 10-0595519, "Device for reducing deterioration of image quality in display using laser," U. S. patent 7116017.

20.  C.-H. Ji , Y. Yee, and S.-H. Kim, "Scanning Micro-mirror Actuated by Electrostatic Force, Manufacturing Method Thereof and optical Scanning Device Using the Same," Korea patent 10-0619696, "Scanning Device and Fabrication Method Thereof," U. S. patent 7453617.

21.  C.-H. Ji , Y. Yee, and S.-H. Lee, "Raster Scanning Display System," Korea patent 10-0636347, U. S. patent 7433107.

22.  C.-H. Ji , Y. Yee, and S.-H, Kim, "Scanning Micro-mirror," Korea patent 10-0636348.

23.  C.-H. Ji , and Y. Yee, "Electromagnetic MEMS Scanning Micromirror and Optical Scanning Device Thereby," Korea patent 10-0644896, "Electromagnetic Scanning Micro-mirror and Optical Scanning Device Using The Same," U. S. patent 7324252.

24.  C.-H. Ji , "Electromagnetic Variable Focus Mirror, Fabrication Method for the Same, and Operating Method for the Same," Korea patent 10-0657002, "Variably Focusing Mirror Driven by Electromagnetic Force and Operating Method Thereof," U. S. patent pending, 2006-399532.

25.  C.-H. Ji , and J.-U. Bu, "SAW Linear Motor, Package and Lens Actuator Using Thereof," Korea patent 10-0706317, "Surface Acoustic Wave Linear Motor, Surface Acoustic Wave Linear Motor Package, and Lens Actuator Adopting the Surface Acoustic Wave Linear Motor Package," U. S. patent pending, 2006-341222.

26. J-H. Choi, S.-H. Kim, and C.-H. Ji , "Linear Actuator Using Voice Coil Motor Type Actuation," Korea patent 10-0693421.

27. S.-H. Kim, J-H. Choi, and C.-H. Ji , "Piezo Actuated Linear Motor, Driving Method Thereof and Camera Module Using the Same," Korea patent 10-0693752.

28.  C.-H. Ji and Y. Yee, "Optical Switch," Korea patent 10-0565598, Korea patent pending, 2002-065335, 2002-075488, U. S. patent pending, 2003-688895.

29.  C.-H. Ji , and Y. Yee, "Variable Optical Attenuator," Korea patent 10-0587327, U. S. patent pending, 2004-892295.

30.  C.-H. Ji , Y. Yee, and J. Choi, "Apparatus for Controlling Flux Using Flux-controlling Valve," Korea patent 10-0512186, "Flow Control Valve and Flow Control Valve Apparatus Using the Same," U. S. patent 7014165.

31.  C.-H. Ji , Y. Yee, and J. Choi, "Flux-controlling Valve," Korea patent 10-0512185.

32.  C.-H. Ji , Y. Yee, and J. Choi, "Electromagnetically Actuated Micro Valve," Korea patent 10-0510696, "Micro-actuator, Fabrication Method Thereof, and Micro-actuating Valve," U. S. patent 7055797.

33. Y. Yee, C.-H. Ji , J. Choi, and S.-H. Kim, "Valve for Fluidic Mass Flow Control and Fabrication Method Thereof," Korea patent 10-0504794.

34.  C.-H. Ji , and Y. Yee, "Variable Optical Attenuator and Array of the Same," Korea patent 10-0495533.

35.  C.-H. Ji , Y. Yee, T.-S. Lim, K.-C. Song, and J.-U. Bu, "Optical Receiver and Transmitter with Integrated Variable Optical Attenuator," Korea patent 10-0492544.

36.  C.-H. Ji , Y. Yee, and J.-U. Bu, "Electro-magnetically Actuated Optical Switch," Korea patent 10-0447212.

37.  C.-H. Ji , Y.-K. Kim, and H. Choi, "Apparatus for Dividing Optical Signal," Korea patent 10-0708073.

38.  C.-H. Ji , Y.-K. Kim, and B.-K. Choi, "Movable Micro Mirror for a Video Display Apparatus and Manufacturing Method Therefor," Korea patent 10-0270812.

39.  C.-H. Ji , Y.-K. Kim, and B.-K. Choi, "Movable Micro Mirror for a Video Display Apparatus," Korea patent 10-0270813.