Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6038068 | Aberration correction system and astronomical telescope having the same | Mikichi Ban, Yoshiya Matsui, Kyoji Nariai | 2000-03-14 |
| 5751497 | Zoom lens | Fumiaki Usui, Jun Hosoya, Chiaki Terasawa | 1998-05-12 |
| 5583700 | Zoom lens | Fumiaki Usui, Jun Hosoya, Chiaki Terasawa | 1996-12-10 |
| 4976526 | Performance correcting optical assembly for photographic lens for television | Shigeru Oshima | 1990-12-11 |