Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4853695 | Data input device having switch matrix scanning means | Satoshi Shibata, Keiko Yamada | 1989-08-01 |
| 4834566 | Typewriter having means for interruption of automatic erasing operation, and/or automatic suspension thereof at each space between successive words | Masaharu Mori, Kiyoshi Yamakawa, Yuji Kawakami, Ryoichi Sasaki | 1989-05-30 |
| 4834567 | Character-erasable printing apparatus | — | 1989-05-30 |
| 4823288 | Document processor | Shigeto Yamada | 1989-04-18 |