Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7639266 | Information device and computer product | Shigeki Taniguchi, Mitsuhiko Yamamoto, Hiroshi Kage, Akihiro Takeda, Kenichi Tanaka | 2009-12-29 |
| 7496215 | Information device and computer product | Shigeki Taniguchi, Mitsuhiko Yamamoto, Hiroshi Kage, Akihiro Takeda, Kenichi Tanaka | 2009-02-24 |
| 7136677 | Portable terminal | Mitsuhiko Yamamoto, Ken Hayashida, Yoshikazu Watanabe | 2006-11-14 |
| 6285362 | Communication terminal and its display control system | Yasushi Kitagawa | 2001-09-04 |
| 6054982 | Communication terminal and its display control system | Yasushi Kitagawa | 2000-04-25 |
| 5984783 | Game machine having a communication terminal for playing games over a network service system | Kunimasa Imasono, Yasushi Kitagawa, Kenji Noma, Tadayuki Tahara, Yoshinori Saito +3 more | 1999-11-16 |
| 5827120 | Network game system having communication characters for conversation changing into action characters for action gaming | Yasushi Kitagawa, Shuji Oba, Tadayuki Tahara, Makoto Urano, Masura Watanabe +4 more | 1998-10-27 |
| 5668950 | Network service system and communication unit for game machine and game machine capable of using said network service system | Kunimasa Imasono, Yasushi Kitagawa, Kenji Noma, Tadayuki Tahara, Yoshinori Saito +3 more | 1997-09-16 |
| 5664778 | Network service system and communication unit for game machine and game machine capable of using said network service system | Kunimasa Imasono, Yasushi Kitagawa, Kenji Noma, Tadayuki Tahara, Yoshinori Saito +3 more | 1997-09-09 |
| 5138522 | Cabinet for housing electrical components | Yasushi Kojima, Akihiro Yakuwa, Katsuki Matsunaga, Naoya Yamazaki | 1992-08-11 |