Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883030 | Combustion chamber of a two-stroke engine | Toshio Tanahashi, Masanobu Kanamaru, Toshio Itoh | 1989-11-28 |
| 4871639 | Carrier for electrophotographic developer | Takayoshi Aoki, Ikutaroh Nagatsuka, Masayuki Takeda, Toshio Honjo, Kenji Uchida | 1989-10-03 |
| 4861694 | Process for producing carriers for developer | Takayoshi Aoki, Masayuki Takeda, Ikutaroh Nagatsuka, Toshio Honjo, Kenji Uchida | 1989-08-29 |