Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882389 | Electrical insulating resin | Makoto Doi, Hiroyukio Nakajima, Fumiyuki Miyamoto, Mitsuhiro Nonogaki | 1989-11-21 |
| 4799608 | Toner cartridge | — | 1989-01-24 |
| 4800411 | Magnetic brush development device for electrostatic latent images | Masaru Tanaka | 1989-01-24 |