Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6610950 | Push switch | Kenji Kamio, Hisashi Watanabe, Takashi Tomago | 2003-08-26 |
| 6608273 | Push switch | Hisashi Watanabe, Hiromichi Koyama | 2003-08-19 |
| 6518527 | Push switch having reduced size | Hisashi Watanabe | 2003-02-11 |