Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859569 | Optical recording medium | Sumio Hirose, Kenji Abe, Yoichi Hosono, Shigeru Takahara, Tadashi Koike | 1989-08-22 |
| 4818790 | Room-temperature-curable resin composition | Masataka Ooka, Shinichi Kuwamura | 1989-04-04 |
| 4798781 | Fabrication process of optical recording medium | Sumio Hirose, Kenji Abe, Yoichi Hosono | 1989-01-17 |