Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8874756 | Information processing unit, information processing method, client device and information processing system | Norifumi Kikkawa, Kei Yamashita, Seiji Miyama | 2014-10-28 |
| 8782170 | Information processing apparatus, information processing method, and computer program | Norifumi Kikkawa, Noriyuki Sakoh | 2014-07-15 |
| 8396868 | Information processing apparatus and information processing method | Nobuyoshi Tomita, Yasuo Endo | 2013-03-12 |
| 8024340 | Metadata collection system, content management server, metadata collection apparatus, metadata collection method and program | Yuichi Kageyama, Norifumi Kikkawa, Toshiaki Kusakabe, Masahiro Hara, Junichi Nakata +1 more | 2011-09-20 |
| 7930536 | Device-to-device authentication system, device-to-device authentication method, communication apparatus, and computer program | Kazuhiko Takabayashi, Takehiko Nakano, Tatsuya Igarashi | 2011-04-19 |
| 7840688 | Information processing device, server client system, method, and computer program | Norifumi Kikkawa, Tatsuya Igarashi, Yoichi Kobori, Takehiko Morita | 2010-11-23 |
| 7805526 | Inter-device authentication system, inter-device authentication method, communication device, and computer program | Kazuhiko Takabayashi, Takehiko Nakano, Tatsuya Igarashi | 2010-09-28 |
| 7610380 | Information processing device, access control processing method, and computer program | Tatsuya Igarashi, Norifumi Kikkawa, Yoichi Kobori, Takehiko Morita, Koichi Tanaka | 2009-10-27 |
| 6570563 | Method and system for three-dimensional virtual reality space sharing and for information transmission | — | 2003-05-27 |
| 6085256 | Cyber space system for providing a virtual reality space formed of three dimensional pictures from a server to a user via a service provider | Hiroaki Kitano, Akikazu Takeuchi | 2000-07-04 |
| 6020885 | Three-dimensional virtual reality space sharing method and system using local and global object identification codes | — | 2000-02-01 |
| 5826266 | Cyberspace system for accessing virtual reality objects | — | 1998-10-20 |
| 5742767 | Program function extending method and apparatus and data processing method | — | 1998-04-21 |