Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6501038 | Key switch and keyboard | Toshiaki Tanaka, Junichi Maruyama, Goro Watanabe | 2002-12-31 |
| 6376789 | Key switch and keyboard | Junichi Maruyama, Takashi Terada, Hitoshi Ohkubo | 2002-04-23 |