Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5691838 | Infrared-blocking optical fiber | Masuhiro Shouji, Hiroki Katono, Teruo Sakagami | 1997-11-25 |
| 5672655 | Plastic optical material and production process thereof | Hiroki Katono, Masuhiro Shouji, Teruo Sakagami | 1997-09-30 |
| 5611965 | Plastic optical filter | Masuhiro Shouji, Hiroki Katono, Teruo Sakagami | 1997-03-18 |