Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883562 | Method of making a photosensor | Hirofumi Ogawa, Kenji Sameshima, Tadaaki Hirai, Masanao Yamamoto, Keiichi Shidara +3 more | 1989-11-28 |
| 4816715 | Image pick-up tube target | Yasuhiko Nonaka, Eisuke Inoue | 1989-03-28 |