Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5742863 | Film holder | Yoichi Hamada, Takeshi Okano, Tokuji Sato | 1998-04-21 |
| 5448324 | Sheet film pack and film pack holder | Takeshi Okano, Yoichi Hamada | 1995-09-05 |
| 5002385 | Target device used in eye movement tests | Tatsuya Kasahara, Kuniomi Abe | 1991-03-26 |