Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5270507 | Push button switch and method for manufacturing same | Akio Nakamura, Mikio Kiyosawa | 1993-12-14 |
| 4527021 | Keyboard switch assembly | Kiyoshi Nomoto, Kenichi Okada | 1985-07-02 |