Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6520698 | Keyboard input unit having foldable cover | — | 2003-02-18 |
| 6152627 | Keyboard device having plurality of keyswitches | Kazutoshi Watanabe, Tsuyoshi Narusawa, Kunio HOSONO | 2000-11-28 |
| 5969644 | Keyboard | — | 1999-10-19 |
| D386488 | Data entry keyboard | Masaaki Kageyama, Hideki Ito, Takahiro Murakami, Katsuyuki Katayama, Hiromi Chiba | 1997-11-18 |
| 5004880 | Click-type push button switch with improved leaf spring | — | 1991-04-02 |