Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877549 | Liquid crystal composition | Shinichi Sawada, Toyoshiro Isoyama | 1989-10-31 |
| 4862218 | Support and adjusting apparatus for an optical unit | Arihiro Tsunoda, Kikunosuke Tsuji, Akira Nakakuma | 1989-08-29 |
| 4814833 | Document size detecting device | Kikunosuke Tsuji, Akira Nakakuma, Kiyoshi Morimoto, Hideaki Tsudaka, Hiroshi Kobayashi +1 more | 1989-03-21 |