Issued Patents All Time
Showing 101–117 of 117 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4433041 | Recording method | — | 1984-02-21 |
| 4431298 | Apparatus for brush development including means for detecting toner in the toner bath and means for supplying toner to the toner bath | Minoru Arai | 1984-02-14 |
| 4426411 | Method of fabricating a steel pressure roll for use in a pressure-fixation apparatus | Yoshitaka Sasaki | 1984-01-17 |
| 4420242 | Magnetic brush developing and cleaning process | — | 1983-12-13 |
| 4383498 | Apparatus for applying magnetic toner to a magnetic transport roll | — | 1983-05-17 |
| 4342282 | Toner cartridge | Toshio Kumakura | 1982-08-03 |
| 4309498 | Electrophotography using a magnetic brush | Ryuji Goto, Masumi Asanae | 1982-01-05 |
| 4302837 | FM Multiplex system for selectively delaying one of two audio signals | Shigeo Tanaka | 1981-11-24 |
| 4288515 | Process for reversal development using inductively chargeable magnetic powdery developer | Kohji Noguchi | 1981-09-08 |
| 4268875 | Avoidance of disturbance of horizontal sync signals in video signal reproduced at other than standard tape speed | Minoru Morio, Masahiro Kambara, Yukio Kubota | 1981-05-19 |
| 4266328 | Developing roll for use in electrostatic developing apparatus employing magnetic particles | Hideki Harada, Katsunobu Yamamoto | 1981-05-12 |
| 4267248 | Magnet-brush development process of electric pattern images | Ryuji Goto | 1981-05-12 |
| 4263390 | Residual toner removing device | Ryuji Goto | 1981-04-21 |
| 4261290 | Electrostatic developing apparatus having a developer powder mixing device | Masahiro Tokumaru | 1981-04-14 |
| 4245024 | Development process for an electrophotographic duplicator employing magnetic toner | Toshio Numata | 1981-01-13 |
| 4237819 | Image developing machine using magnetic toner | Masahiro Ikegami, Sennosuke Morikawa, Koji Noguchi | 1980-12-09 |
| 4231320 | Magnetic brush-toner supply hopper | Masumi Asanae | 1980-11-04 |