Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4844863 | Method of producing clad metal | Akihiro Miyasaka, Hiroyuki Ogawa, Hiroyuki Homma, Saburo Kitaguchi, Satoshi Araki | 1989-07-04 |
| 4839730 | Image reading apparatus | Hiroshi Shirakoshi, Matahira Kotani, Masafumi Matsumoto | 1989-06-13 |
| 4820910 | Security system and lock | Yakichi Higo | 1989-04-11 |
| 4809080 | Read/record head in facsimile | Matahira Kotani, Ryoichi Kawai, Kenichi Shiraishi | 1989-02-28 |