Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7439550 | Semiconductor light emitting device | Seiichiro Kobayashi, Kazuki Takeshima | 2008-10-21 |
| 5057102 | Contrast adjustor for aiming laser | Hiroshi Koizumi, Masatsugu Kijima | 1991-10-15 |