Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4839109 | Process for producing a contact lens | Isao Kaetsu, Minoru Kumakura, Hidenari Suyama, Hideo Koyama | 1989-06-13 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4839109 | Process for producing a contact lens | Isao Kaetsu, Minoru Kumakura, Hidenari Suyama, Hideo Koyama | 1989-06-13 |