Issued Patents All Time
Showing 51–53 of 53 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5951731 | Laser processing method to a micro lens | Tadashi Koyama | 1999-09-14 |
| 5917603 | Wiper control apparatus | Shuhei Tanaka, Tadashi Koyama | 1999-06-29 |
| 5910256 | Method for manufacturing a diffraction type optical element | Tadashi Koyama | 1999-06-08 |