Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871639 | Carrier for electrophotographic developer | Ikutaroh Nagatsuka, Masayuki Takeda, Toshio Honjo, Kazuhiro Itoh, Kenji Uchida | 1989-10-03 |
| 4868083 | Developer carrier and process for producing the same | Ikutaroh Nagatsuka, Yasuo Matsumura, Masayuki Takeda, Chiaki Suzuki | 1989-09-19 |
| 4861694 | Process for producing carriers for developer | Masayuki Takeda, Ikutaroh Nagatsuka, Toshio Honjo, Kazuhiro Itoh, Kenji Uchida | 1989-08-29 |
| 4859558 | Composition with fatty acid bisamide powder developer | Yasuo Matsumura, Masayuki Takeda, Chiaki Suzuki, Ikutaroh Nagatsuka | 1989-08-22 |
| 4830125 | Process and apparatus for automatically weighing and introducing chemicals | Michinobu Kaimori, Akira Aikawa, Akira Urakami, Gen Nishimura, Tohru Koide +3 more | 1989-05-16 |