Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D593041 | Remote controller | Eri Otsuka, Tsubasa Hayase, Kumiko Kataoka | 2009-05-26 |
| 6529370 | Keyboard switch | — | 2003-03-04 |
| 6297461 | Keyboard switch | — | 2001-10-02 |
| 6144003 | Membrane switch | — | 2000-11-07 |
| 5894117 | Keyboard switch for notebook type computer or the like | — | 1999-04-13 |
| 4866228 | Key switch with multiple contact points | — | 1989-09-12 |