Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875766 | Fiber reinforced plastic reflector | Hisayo Shimodaira, Keizo Miyawaki, Tatsuya Hamaguchi | 1989-10-24 |
| 4865924 | Magnetic recording medium | Shinji Saito, Chiaki Mizuno, Hiroshi Ogawa | 1989-09-12 |
| 4807969 | Method of manufacturing a reflector of a fiber-reinforced plastic material | Hisayo Shimodaira | 1989-02-28 |