Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4896625 | Developing device | Koji Sakamoto, Toshio Kaneko, Wataru Yasuda | 1990-01-30 |
| 4674439 | Developing device | Koji Sakamoto, Toshio Kaneko, Wataru Yasuda | 1987-06-23 |
| 4656964 | Developing device | Kazuo Kobayashi, Koji Sakamoto, Toshio Kaneko, Wataru Yasuda | 1987-04-14 |
| 4625676 | Developing device | Koji Sakamoto, Toshio Kaneko, Wataru Yasuda | 1986-12-02 |
| 4624545 | Developing device with regulated developer supply | Wataru Yasuda, Koji Sakamoto, Toshio Kaneko | 1986-11-25 |
| 4601963 | Locally deformable photosensitive drum for use in electrophotography | Michio Takahashi, Mitsuo Tanaka, Kazuo Kobayashi | 1986-07-22 |
| 4575220 | Developing device | Koji Sakamoto, Toshio Kaneko, Wataru Yasuda | 1986-03-11 |
| 4564285 | Developing device having dispersed floating electrodes in a dielectric layer | Wataru Yasuda, Koji Sakamoto | 1986-01-14 |
| 4561381 | Voltage-controlled developing device | Toshio Kaneko, Koji Sakamoto, Wataru Yasuda | 1985-12-31 |
| 4538898 | Developing device | Toshio Kaneko, Koji Sakamoto | 1985-09-03 |
| 4528937 | Device for forming a developer film | Koji Sakamoto, Kazuo Kobayashi, Wataru Yasuda, Hiromi Ogiyama | 1985-07-16 |