Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4863824 | Toner for developing electrostatic latent image | Masafumi Uchida, Hiroyuki Takagiwa, Satoru Ikeuchi, Hideyo Nishikawa, Kuniyasu Kawabe | 1989-09-05 |
| 4819587 | Multiple-purpose instantaneous gas water heater | Osamu Tsutsui, Hideki Kawaguchi, Keiji Hayashi, Masahiro Kayano, Hiroshi Kobayashi +2 more | 1989-04-11 |
| 4804622 | Toner composition for electrophotography | Hideyo Nishikawa, Kuniyasu Kawabe | 1989-02-14 |