Issued Patents All Time
Showing 51–59 of 59 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6618239 | Key switch and keyboard | Kouki Takahashi, Kouji Ishikawa, Kiyokazu Moriizumi, Kiyoshi Wada, Katsumi Harada +3 more | 2003-09-09 |
| 6501038 | Key switch and keyboard | Kazutoshi Hayashi, Toshiaki Tanaka, Goro Watanabe | 2002-12-31 |
| 6376789 | Key switch and keyboard | Takashi Terada, Hitoshi Ohkubo, Kazutoshi Hayashi | 2002-04-23 |
| 6257782 | Key switch with sliding mechanism and keyboard | Toshiaki Tanaka, Kazutoshi Hayashi, Goro Watanabe | 2001-07-10 |
| 5874696 | Key switch, keyboard and portable information processing unit with keyboard | Kazutoshi Hayashi | 1999-02-23 |
| 5813521 | Keyswitch having a reduced height and a keyboard using such a keyswitch | Tamotsu Koike, Syuji Nakamura, Norio Endo, Yasuo Ootani | 1998-09-29 |
| 5715894 | Impact screw-tightening apparatus | Tatsumi Nabekura | 1998-02-10 |
| 5366026 | Impact type clamping apparatus | Teruo Fukumura, Toru Takeuchi | 1994-11-22 |
| 5181575 | Impact wrench having torque controlling faculty | Teruo Fukumura, Sadatsugu Kawaguchi | 1993-01-26 |