1. PERSONAL DETAILS

Name:
Koshiro Mitsuya
Professional Address:
Koozyt, Inc.
4-1-8, 2F, Azabu Juban, Minato-ku, Tokyo 106-0045, Japan
TEL +81-3-5419-6361, FAX +81-3-3798-3701
E-Mail:
mitsuya@koozyt.com
Web Page:
http://www.sfc.wide.ad.jp/~mitsuya/index.html
Date of Birth:
10 May 1979
Nationality:
Japan
Status:
Married
Languages:
Japanese: Native
English: Ability to communicate with success in professional, social and personal situations (TOEIC score: 820)

2. PERSONAL HISTORY

2008-Current
Senior Architect/Product Manager at Koozyt, Inc.
2004-2008
A doctor student at Jun Murai laboratory, Graduate School of Media and Governance, Keio University, Japan
2002-2004
A master student at Jun Murai laboratory
Graduate School of Media and Governance, Keio University, Japan
Modules include: information technology, mobile networking, ad-hoc networking, ubiquitous computing
1998-2002
A bachelor student at Jun Murai laboratory
Faculty of Environmental Information, Keio University, Japan
Modules include: mathematics, computer science, computer networking, basic economic science, cyberspace law, basic business law, social science
1995-1998
Fukui prefectural Katsuyama high school, Japan
Comprehensive course

3. COMPUTING EMPLOYMENT EXPERIENCE

2008 - Current
Senior Architect/Product Manager at Koozyt, Inc.
- Leading the software development team of PlaceEngine (a Wi-Fi Positioning System) for both client and server systems.
- Designed and Developed mobile applications on iOS/Android.
- Management of entrusted development projects (mostly location-based services or wireless connection management utilities) on Linux/MacOSX/Windows, from concept-to-launch.
2007 - 3 months
Internship at Energy Efficient Networking group, Corporate Technology Group (CTG), Intel Corporation, Hillsboro, US.
Developed a policy-enabled network selection algorithm (handoffs between wireless networks).
2004 - current
Assistant of Dr. Atsushi Shionozaki at Sony Computer Science Laboratories, Inc., Tokyo, Japan.
I spend the time as his assistance, programming or construction of test-bed.
2000 - 4 years
Assistant of Dr. Kenjiro Cho at Sony Computer Science Laboratories, Inc., Tokyo, Japan.
I spend the time, a half is assistance, programming or construction of test-bed and a half is own research.
2002 - 1 year
Network Consultant/Engineer at Shonan Fujisawa Campus, Keio University.
Construction of a system, its maintenance, UNIX and Windows. User support.
2002 - 1 month
System Engineer at IBM Japan, Ltd..
Debug of a customer support system, JAVA.
2001 - 6 months
Network Engineer at AboveNet Japan K.K..
Surveillance of network resources, maintenance. User support.
2000 - 2 years
Network Engineer at GAIO TECHNOLOGY CO., LTD.
Construction of a system, its maintenance, UNIX. User support.
1999 - 1 year
Staff of WIDE University, School of Internet.
Recording lectures, Upload and build the website of classes.
1999 - 3 years
Database Consultant at Shonan Fujisawa Campus, Keio University.
User support. I was the chief editor of user support manuals.

4. COMPUTER SKILLS

5. RESEARCH ACTIVITIES

During my academic carrier, general aim of my research was to achieve a digital communication infrastructure on which any device can connect to each other anywhere and anytime. My research included mobile networking (architecture, protocol, operational technique).

IP Mobility
Many mobility protocols have been proposed, because in the near future a huge number of Internet nodes will be moving around with humans. Thus IP mobility support will become a key technology. In order to understand research problems on a network with such basic mobility protocols, I have worked on developing real testbeds. As a result, I have been able to propose many solutions in the IETF, and provided, as one of core developers, open source implementations for IPv6, Mobile IPv6, and NEMO Basic Support.
IP Mobility Enhancement
Fast handover and multihoming are important features for mobile nodes in order to provide uninterrupted high quality network connectivity. For this purpose, the IP Mobility stack needs to work closely with either lower or higher layers. I worked on defining an interaction model between the link layer and higher layers for fast handover. Additionally, I proposed an architecture for flow distribution (how packets from/to mobile nodes are routed based on user's policy) and utilized link layer information e.g. IEEE802.21 in order to monitor the current situation of the node.

6. PUBLICATIONS

English

Book
  1. None
Journal
  1. Keiichi Shima, Koshiro Mitsuya, Tsuyoshi Momose, Shuichi Karino, Ryuji Wakikawa, Kazushi Sugyou, Keisuke Uehara. "Designing and Implementing IPv6 Mobility stack on BSD Operating Systems". Computer Software, JSSST Journal, Vol. 24, No. 4 (2007), pp. 23-39.
  2. Ryuji Wakikawa, Koshiro Mitsuya, Keisuke Uehara, Thierry Ernst and Jun Murai. "Basic Network Mobility Support for Internet ITS". Journal of ISPJ, Vol.44, No.12, pp.2925-2935, December 2003.
  3. Koshiro Mitsuya, Keisuke Uehara and Jun Murai (Keio University). "The In-vehicle Router System to support Network Mobility". LNCS Vol.2662, pp.633-642, October 2003. [ps]
  4. Thierry Ernst, Koshiro Mitsuya and Keisuke Uehara. "Network Mobility from the InternetCAR perspective". Journal of Interconnection Networks (JOIN), Vol.4, No.3, pp.329-344, September 2003. [pdf]
Conference
  1. Koshiro Mitsuya, Romain Kuntz, Shinta Sugimoto, Ryuji Wakikawa and Jun Murai. "A Policy Management Framework for Flow Distribution on Multihomed End Nodes". In the proceedings of The 2nd ACM International Workshop on Mobility in the Evolving Internet Architecture (MobiArch), Kyoto, Japan, August 2007. [pdf]
  2. Koshiro Mitsuya, Ryuji Wakikawa and Jun Murai. "Implementation and Evaluation of the Dual Stack Mobile IPv6". In the proceedings of Asia BSD Conference (AsiaBSDCon), Tokyo, Japan, March 2007. [pdf]
  3. Keiichi Shima, Koshiro Mitsuya, Ryuji Wakikawa, Tsuyoshi Momose and Keisuke Uehara. "SHISA: The Mobile IPv6/NEMO BS Stack Implementation Current Status". In the proceedings of Asia BSD Conference (AsiaBSDCon), Tokyo, Japan, March 2007. [pdf]
  4. Jean Lorchat, Koshiro Mitsuya and Romain Kuntz. "A NetBSD-based IPv6 NEMO Mobile Router". In the proceedings of Asia BSD Conference (AsiaBSDCon), Tokyo, Japan, March 2007. [pdf]
  5. Keiichi Shima, Ryuji Wakikawa, Koshiro Mitsuya, Keisuke Uehara and Tsuyoshi Momose. "SHISA: The IPv6 Mobility Framework for BSD Operating Systems". In the proceedings of The IPv6 Today -- Technology and Deployment Workshop (IPv6TD). August 2006. [pdf]
  6. Koshiro Mitsuya, Jean Lorchat, Thomas Noel and Keisuke Uehara. "SONAR: A Statistic Repository of Mobility Platforms". In the proceedings of The International Conference on Information Networking 2006 with The 1st Workshop of Network Mobility (WONEMO). Sendai, Japan, January 2006. [pdf]
  7. Romain Kuntz, Koshiro Mitsuya and Ryuji Wakikawa. "Performance Evaluation of NEMO Basic Support Implementations". In the proceedings of The International Conference on Information Networking 2006 with The 1st Workshop of Network Mobility (WONEMO). Sendai, Japan, January 2006. [pdf]
  8. Manabu Tsukada, Thierry Ernst, Ryuji Wakikawa and Koshiro Mitsuya. "Dynamic Management of Multiple Mobile Routers", In the proceedings of The IEEE Malaysia International Conference on Communications and IEEE International Conference on Networks (MICC < ICON 2005), Vol.2, pp.1108-1113, Kuala Lumpur, Malaysia, November 2005.
  9. Koshiro Mitsuya, Manabu Isomura, Keisuke Uehara and Jun Murai. "Adaptive Application for Mobile Network Environment". In the proceedings of The 5th International Conference on ITS Telecommunications (ITST), pp.211-214, Brest, France, June 2005. [pdf]
  10. Masafumi Watari and Koshiro Mitsuya and Jun Murai. "Neighbor Route Discovery for Route Optimization in Nested Mobile Networks". In the proceedings of Internet Conference 2004 (IC), pp.39-45, Tsukuba, Japan, October 2004.
  11. Hiroki Matsutani, Ryuji Wakikawa, Koshiro Mitsuya and Jun Murai. "Performance Oriented Management System for Reconfigurable Network Appliances". In the proceedings of The First International Workshop on Networked Sensing Systems (INSS), pp.129-133, Tokyo, 2004. [pdf]
  12. Ryuji Wakikawa, Masafumi Watari, Hiroyuji Matsutani, Koshiro Mitsuya, Thierry Ernst, Keisuke Uehara and Jun Murai. "Demonstration System supporting Host and Network Mobility". In the proceedings of The Symposium on Multimedia, Distributed, Cooperative and Mobile Systems (DICOMO), Akan Lake Hokkaido, Japan, June 2003. [pdf]
  13. Thierry Ernst, Keisuke Uehara and Koshiro Mitsuya. "Network Mobility from the InternetCAR perspective". In the proceedings of The 17th International Conference on Advanced Information Networking and Applications (AINA), Xi'an, China, March 2003. [pdf]
  14. Koshiro Mitsuya, Keisuke Uehara and Jun Murai (Keio University). "The In-vehicle Router System to support Network Mobility". In the proceedings of The International Conference on Information Networking (ICOIN) 2003, vol.2, page. 890-899, Jeju Island, Korea, February 2003. [ps] [pdf]
  15. Kenjiro Cho, Koushirou Mitsuya and Akira Kato. "Traffic Data Repository at the WIDE Project". USENIX 2000 FREENIX Track, San Diego, CA, June 2000. [pdf]
Etc.
  1. Koshiro Mitsuya, "End System Based Handover Management for Multihomed Mobile Internet", PhD Thesis of Keio University, February 2010. [abst]
  2. [STANDARDIZED] Fumio Teraoka, Kazutaka Gogo, Koshiro Mitsuya, Rie Shibui and Koki Mitani. "Unified L2 Abstractions for L3-Driven Fast Handover". Request for Comment: 5184, Internet Engineering Task Force, May 2008.
  3. [expired] Conny Larsson, Michael Eriksson, Koshiro Mitsuya, Kazuyuki Tasaka and Romain Kuntz. "Flow Distribution Rule Language for Multi-Access Nodes". Internet-Draft, Internet Engineering Task Force, November 2007. draft-larsson-mext-flow-distribution-rules-00
  4. [merged into draft-larsson-mext-flow-distribution-rules] Koshiro Mitsuya, Kazuyuki Tasaka, Ryuji Wakikawa and Romain Kuntz. "A Policy Data Set for Flow Distribution". Internet-Draft, Internet Engineering Task Force, August 2007. draft-mitsuya-monami6-flow-distribution-policy-04
  5. [expired] Romain Kuntz, EunKyoung Paik, Manabu Tsukada, Thierry Ernst, and Koshiro Mitsuya. "Evaluating Multiple Mobile Routers and Multiple NEMO-Prefixes in NEMO Basic Support". Internet-Draft, Internet Engineering Task Force, July 2005. draft-kuntz-nemo-multihoming-test-02
  6. [expired] Koshiro Mitsuya. "Keep Old Binding Cache for a bit". Internet-Draft, Internet Engineering Task Force, May 2005. draft-mitsuya-keep-old-binding-00
  7. Koshiro Mitsuya, "GGCAST - A Location Based Multicast -", Master Thesis of Keio University, February 2004. [pdf]
  8. [expired] Julien Charbon, Chan-Wah Ng, Koshiro Mitsuya and Thierry Ernst. "Evaluating Multi-homing Support in NEMO Basic Solution". Internet-Draft, Internet Engineering Task Force, July 2003. [txt] draft-charbon-nemo-multihoming-evaluation-00
  9. [expired] Ryuji Wakikawa, Keisuke Uehara, Koshiro Mitsuya and Thierry Ernst. "Basic Network Mobility Support". Internet-Draft, Internet Engineering Task Force, February 2003. [txt] draft-wakikawa-nemo-basic-00

Non-English (Japanese)

Book
  1. None
Journal
  1. Koshiro Mitsuya, Mitsuhiro Kitaji, Chizuko Nagasawa, Kugo Morita, Tomoyoshi Yokota, Ryuji Wakikawa and Jun Murai. "A Smooth Vertical Handover System using IEEE802.21 MIH Services". IPSJ Journal, Vol. 49, No. 1, pp. 1234-1248, January 2008.
  2. Koshiro Mitsuya, Koki Mitani, Fumio Teraoka, Jun Murai. "TARZAN: An FMIPv6 Implementation using Link Layer Abstractions". Computer Software, JSSST Journal, Vol. 24, No. 4, pp. 123-138, October 2007.
  3. Masafumi Oe, Shinichi Fujisawa, Ryuji Somegawa, Shunsuke Fujieda and Koshiro Mitsuya. "Ad hoc network construction technology". IPSJ Journal, Vol. 41, No. 08, Nov 2002.
Conference
  1. Manabu Tsukada, Koshiro Mitsuya, Keisuke Uehara, Jun Murai. "Dynamic Internet Connectivity Sharing in Mobile Network". Symposium on Multimedia Distributed, Copperative and Mobile Systems (DICOMO) 2005, Iwate, Japan, July 2005.
  2. Koshiro Mitsuya, Manabu Isomura, Keisuke Uehara, Jun Murai. "Adaptive Application for Mobile Network Environment". In the proceedings of The 67th National Convention of IPSJ, Tokyo, Japan, March 2005. [pdf]
  3. Koshiro Mitsuya(Keio University), Kenjiro Cho(Sony CSL) and Akira Kato(The University of Tokyo), Jun Murai(Keio University), "IP Traffic Trends in Packet Size Distribution". In the proceedings of Internet Conference (IC) 2000, Yokohama, Japan, September 2000. [pdf]
  4. Shinta Sugimoto, Keisuke Uehara, Koshiro Mitsuya and Jun Murai. "Adapting BSD to the In-vehicle System". In the proceedings of The Systems for Programming and Applications (SPA) 2000, Shizuoka, Japan, March 2000.
Etc.
  1. Koshiro Mitsuya, "The In-vehicle Router System for Internet CAR", Bachelor Thesis of Keio University, January 2002. [ps], [pdf]

7. PATENTS

8. TALKS

English

Japanese

9. NON-COMPUTING EMPLOYMENT EXPERIENCE

2003 - 2 years
Waiter at Japanese restaurant.
1999 - 1 month
Construction worker
1998 - 4 month
Salesperson at around-the-clock convenience store.
1995 - 2 years
Assistant instructor at KUMON INSTITUTE OF EDUCATION CO., LTD.

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