Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4890230 | Electronic dictionary | Hikoshi Nagasawa | 1989-12-26 |
| 4813007 | External magnetic field generating device | Yasuhiro Suzuki, Shizuo Nagata, Yasuo Shimizu | 1989-03-14 |
| 4799271 | Optical character reader apparatus | Hikoshi Nagasawa, Kazuo Ito, Shigeru Horii | 1989-01-17 |