Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5021705 | Method of fabricating an image pick-up tube and target section used therewith | Masanao Yamamoto, Takaaki Unnai, Shigeru Ehata, Tadaaki Hirai, Kenji Sameshima +4 more | 1991-06-04 |
| 4883562 | Method of making a photosensor | Hirofumi Ogawa, Kenji Sameshima, Tadaaki Hirai, Takaaki Unnai, Masanao Yamamoto +3 more | 1989-11-28 |