Issued Patents All Time
Showing 51–57 of 57 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5257139 | Reflection reduction projection optical system | — | 1993-10-26 |
| 5071240 | Reflecting optical imaging apparatus using spherical reflectors and producing an intermediate image | Yutaka Ichihara | 1991-12-10 |
| 4981549 | Method and apparatus for growing silicon crystals | Ichiro Yamashita, Koutaro Shimizu, Yoshiaki Banba, Yasushi Shimanuki, Hisashi Furuya | 1991-01-01 |
| 4844505 | Suspension of vehicle | — | 1989-07-04 |
| 4587142 | Artificial grain leather | Hisao Shimizu | 1986-05-06 |
| 4525169 | Artificial grain leather having different color spot groups | Miyoshi Okamoto | 1985-06-25 |
| 4484957 | Permanent magnetic alloy | Naoyuki Ishigaki, Yutaka Matsuura, Hitoshi Yamamoto | 1984-11-27 |