Kitakyushu, Japan, Paper Presentation, August, 2025
Madrid, Spain, IETF 123 Meeting, July 2025
Lisbon, Portugal, Paper Presentation, July 2025
Fukuoka, Japan, Paper Presentation, February, 2025
Kumamoto, Japan, Workshop, February, 2025
Singapore, Expo Participation, October 2024
Bangkok, Thailand, Paper Presentation, October 2024
Vancouver, Canada, IETF 120 Meeting, July 2024
Budapest, Hungary, Paper Presentation, July 2024
Brisbane, Brisbane, Australia, IETF 119 Meeting, March 2024
Osaka, Japan, Paper Presentation, February, 2024
Ho Chi Minh, Vietnam, Conference Participation, January 2024
Prague, Czech, 118th IETF Meeting, November 2023
Kumamoto, Japan, Paper Presentation, August 2023
San Francisco, USA, 117th IETF Meeting, July 2023
London, BK, Visiting Universities and Industries, July 2023
Paris, France, Paper Presentation, July 2023
Bali, Indonesia, Paper Presentation, February 2023
Bangkok, Thailand, Conference Participation, January 2023
Philadelphia, PA, USA, 114th IETF Meeting, July 2022.
San Diego, USA, Conference Participation, February 2020
Cebu, Philippines, Family Traveling January 2020.
Singapore, 106th IETF Meeting, November 2019.
Bangkok, Thailand, Conference Participation, October 2019
Vancouver, Canada, Paper Presentation, August 2019
Macau, China, Conference Participation, August 2019
Montreal, Quebec, Canada, 105th IETF Meeting, Jul 2019.
Long Beach, USA, Conference Participation, June, 2019
Prague, Czech, 104th IETF Meeting, March, 2019
Okinawa, Japan, Paper Presentation, February, 2019
Bangkok, Thailand, Paper Presentation, January 2019
Nuremberg, German, Exhibition Participation,, November 2018
Bangkok, Thailand, 103th IETF Meeting, November 2018
Madrid, Conference Participation, September 2018.
Danang, Vietnam, Family traveling, August 2018.
Montreal, Quebec, Canada, 102th IETF Meeting July 2018.
Ho Chi Minh, Vietnam, Paper Presentation, April 2018.
Shanghai, China, Exhibition, March 2018.
San Diego, USA, Exhibition, February 2018.
Hanoi, Vietnam, Paper Presentation, February 2018.
Laguna Hills, CA, USA, Conference Participation, January 2018.
Taichung, Taiwan, Paper Presentation, December 2017.
Singapore, Singapore, 100th IETF Meeting, October 2017.
Bangkok, Thailand, Paper Presentation, September 2017.
Kurume, Japan, Paper Presentation, August 2017.
Prague, Czech, 99th IETF Meeting, July 2017.
London, Paris, France, Paper Presentation and Family Trip, February 2017.
London, BK, Exhibition, January 2017.
Bangkok, Thailand, Paper Presentation, December 2016.
Bali, Indonesia, Paper Presentation, August 2016.
Harbin, China, Paper Presentation, August 2016.
Beijing, China, Paper Presentation, April 2016.
San Diego, USA, Paper Presentation, January 2016.
Cebu, Philippines, Paper Presentation, December 2015.
Prague, Czech, Paper Presentation, October 2015.
Dalian, China, Paper Presentation, August 2015.
Prague, Czech, 93rd IETF Meeting, July 2015.
Singapore, Singapore, Paper Presentation, January 2015.
Hawaii, USA, 91st IETF Meeting, November 2014.
Los Angeles, USA, Paper Presentation, September 2014.
London/Cambridge/Chester/Nottingham/Manchester, England, Visiting Universities and Industries, August 2014.
Toronto, Canada, 90th IETF Meeting, July 2014.
Singapore, Singapore, Paper Presentation, CMAME 2014, May 2014.
KL, Malaysia, Visiting Universities and Industries, April 2014.
Irvine, CA, USA, Trip, January 2014.
Vancouver, Canada, 88th IETF Meeting, November 2013.
Seattle, WA, USA, Family Trip, November 2013.
Kumamoto, Japan, Paper Presentation, ICICIC 2013, September 2013.
Irvine, CA, USA, Trip, July 2013.
Qingdao, China, Visiting Universities and Industries, July 2013.
Las Vegas, USA, Paper Presentation, ITNG 2013, April 2013.
San Francisco, Yosemite, USA, Trip, August 2012.
San Francisco, Santa Barbara, USA, Family Trip, August 2012.
Vancouver, Canada, 84th IETF Meeting, July 2012.
Las Vegas, USA, Paper Presentation, ICWN 2012, July 2012.
Las Vegas, Grand Canyon, Sedona, USA, Family Trip, April 2012.
San Diego, CA, USA, Family Trip, March 2012.
Irvine, CA, USA, Sabbatical Year, Jan 2012~Feb 2013.
Taipei, Taiwan, 82nd IETF Meeting, Nov 2011.
Dalian, China, Visiting Universities and Industries, Aug 2011.
Bangkok, Thailand, BAI 2011, Paper Presentation, July 2011.
German, Italy, Switzerland, Visiting Universities and Industries, June 2011.
Prague, Czech Republic, 80th IETF Meeting, March 2011.
Seatlle, USA, ISO/IEC JTC1 SC25 WG1, October 13-19, 2010.
Anaheim and San Diego, USA, Visiting Universities and Industries, August 2010.
Bali, Indonesia, ICCNMC, Paper Presentation, July 14-16, 2009.
New York, USA, ISO/IEC JTC1 SC25 WG1, April 25-May 2, 2010.
Anaheim, CA, USA, 77th IETF Meeting, March 2010.
Hong Kong & Macau, ICICS 2009, Paper Presentation, December 7-10, 2009.
Orlando, USA, TelcoTV 2009, Workshop & Expor, November 9-14, 2009.
Qingdao, China, SITA 2009, Paper Presentation, September 24-26, 2009.
Guam, USA, Family Trip, August 18-23, 2009.
San Francisco, CA, USA, 74th IETF Meeting, March 2009.
Shenzhen, China, Business Trip, Feb 2009.
Sydney and Melbourne, Australia, Visiting Universities and Industries, Jan 2009.
Fukuoka, Japan, Family Trip, Oct 2008.
Tokyo, Japan, Visiting Universities and Industries, Aug 2008.
Dublin, Ireland, 72nd IETF Meeting, Jul 2008.
Philadelphia, PA, USA, 71st IETF Meeting, Mar 2008.
San Francisco and L.A, CA, USA, Visiting Universities and Industries, Feb 2008.
Shenzhen, China, Business Trip, Jan 2008.
Pattaya, Thailand, Business Trip, Dec 2007.
Vancouver, BC, Canada, 70th IETF Meeting, Dec 2007.
Sydney, Australia, ISCIT 2007, Paper Presentation, Oct 2007.
Beijing, China, IASTED CSNA, Paper Presentation, Oct 2007.
Yantai, China, Business Trip, Jul 2007.
Banff, Canada, IASTED CIIT, Paper Presentation, Jul 2007.
Tokyo, Japan, Visiting Universities and Industries, May 2007.
Prague, Czech Republic, 68th IETF Meeting, March 2007.
Tampa, USA, IASTED PES, Paper Presentation, Jan 2007.
Palma De Mallorca, Spain, IASTED CSN, Paper Presentation, Aug 2006.
Beijing, China, Business Trip, Aug 2006.
Montreal, Quebec, Canada, 66th IETF Meeting, Jul 2006.
Dallas, TX, USA, 65th IETF Meeting, March 2006.
Singapore, Singapore, Family Trip, Feb 2006.
Bangkok, Thailand, ICICS 2005, Paper Presentation, Dec 2005.
Vancouver, BC, Canada, 64th IETF Meeting, Nov 2005.
Cebu, Philippines, Family Trip, Oct 2005.
Sorento and Rome, Italy, Paper Presentation, Sep 2005.
Tokyo, Japan, Visiting Universities and Industries, Aug 2005.
Paris, France, 63rd IETF Meeting, Jul 2005.
Shanghai, China, Paper Presentation, Dec 2004.
Berlin, German, IEEE Meeting, Sep 2004.
London, British, Samsung in London, Project, Sep 2004.
Assisi and Rome, Italy, ICCSA, Paper Presentation, May 2004.
Beijing, China, IPv6 Summit, April 2004.
Singapore, Singapore, IEEE MWCN, Paper Presentation, Oct 2003.
Vienna, Austria, SISO Meeting, Jul 2003.
Hawaii, USA, Family Trip, Jun 2003.
San Francisco, USA, 56th IETF Meeting, Mar 2003.
Bangalore, India, SISO Meeting, Jan 2003.
Yokohama, Japan, 54th IETF Meeting, Jul 2002.
Innsbruck, Austria, IASTED MIC, Paper Presentation, Feb 2002.
Saltlake City, USA, 52nd IETF Meeting, Dec 2001.
Hawaii, USA, IASTED SIP, Paper Presentation, Aug 2001.
Fukuoka, Japan, SICE 2000, Paper Presentation, Jul 2000.
L.A and San Diego, USA, ACC 1999, Paper Presentation, Jun 1999.
Kyoto, Osaka, Nara, Tokusima, Japan, SICE 1997, Paper Presentation, July 1997.
Taipei, Taiwan, CISL Winter Workshop 1995, Paper Presentation, July 1995.