Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883717 | Vibration-damping material | Shuji Kitamura, Yoshio Tadokoro, Hiroo Toya, Yoshiaki Togawa, Toshitsugu Kikuchi +5 more | 1989-11-28 |
| 4859039 | Light-polarizing film | Toyokazu Okada, Hitoshi Kikui | 1989-08-22 |
| 4803014 | Light-polarizing film | Toyokazu Okada, Hitoshi Kikui | 1989-02-07 |