Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4868261 | Optical resin material | Akihiro Kobayashi, Takayuki Saito, Hiromasa Kawai, Yutaka Hosoi, Hideaki Shibata | 1989-09-19 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4868261 | Optical resin material | Akihiro Kobayashi, Takayuki Saito, Hiromasa Kawai, Yutaka Hosoi, Hideaki Shibata | 1989-09-19 |