Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5623370 | Gradient index lens system | Toshihiko Ueda, Satoshi Iwasaki, Kazuharu Kagoshima, Keijiro Sakamoto | 1997-04-22 |
| 5270864 | Zoom lens system for use in copying apparatus | — | 1993-12-14 |
| 4818568 | Hot dip coated steel sheet and process for producing the same | Takenori Deguchi, Masaru Suzuki, Kazuko Uchida | 1989-04-04 |