Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877704 | Process for developing latent electrostatic image using toner containing polyester resin | Hiroyuki Takagiwa, Jiro Takahashi, Meizo Shirose, Kunio Akimoto | 1989-10-31 |
| 4863824 | Toner for developing electrostatic latent image | Hiroyuki Takagiwa, Satoru Ikeuchi, Hideyo Nishikawa, Shingo Tanaka, Kuniyasu Kawabe | 1989-09-05 |