Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9651801 | Optical lens | Kazuhito Yamanouchi | 2017-05-16 |
| 9278492 | Method for producing optical lens | Kazuhito Yamanouchi | 2016-03-08 |
| 4294475 | Flexible pipe connector | Isamu Kanai, Kazuo Tsuchiya, Toshio Takasaki | 1981-10-13 |