Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6693935 | Semiconductor laser | Tsuyoshi Tojo | 2004-02-17 |
| 6492660 | Semiconductor light emitting device | — | 2002-12-10 |
| 5953357 | Semiconductor laser | Shoji Hirata, Koji Iwamoto, Hiroki Nagasaki, Tsuyoshi Tojyo | 1999-09-14 |
| 4905092 | Condensation-free data reading machine | Takaho Koshiishi | 1990-02-27 |