Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5754167 | Coordinate inputting device for a computer keyboard | Tsuyoshi Narusawa, Ryouichi Maeda | 1998-05-19 |
| 4977349 | Low-pressure mercury vapor discharge lamp | Masahiko Asakura, Kimio Shiraiwa, Naotosi Toume | 1990-12-11 |
| 4913285 | Water-and-dust-proof push-button switch housing dummy terminal for air venting | Jyoji Tsutsumi | 1990-04-03 |
| D303157 | Fluorescent lamp tube | Katsuhide Misono | 1989-08-29 |
| 4596912 | Push-button switch | — | 1986-06-24 |