Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4840509 | Synthetic resin pen unit | Akio Ito | 1989-06-20 |
| 4828949 | Method for manufacturing a phosphor pattern using phososensitive phosphor paste layer of high viscosity | Reiko Saito | 1989-05-09 |
| 4824813 | Dielectric ceramic composition | Shinsuke Yano, Susumu Nishigaki, Toshio Nonomura | 1989-04-25 |
| 4798182 | Portable engine | Takanori Ebinuma, Mituko Sakurai | 1989-01-17 |