Issued Patents All Time
Showing 26–50 of 59 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4828953 | Method for the formation of outline images corresponding to the peripheral outlines of document's images | Naoki Toyoshi, Tomoaki Yokoyama | 1989-05-09 |
| 4821071 | Electrophotographic copiers | Naoki Toyoshi, Hisashi Myochin, Tomoaki Yokoyama | 1989-04-11 |
| 4794062 | Method for the formation of outline images corresponding to the peripheral outlines of document's images | Naoki Toyoshi, Tomoaki Yokoyama | 1988-12-27 |
| 4792775 | Method for the formation of outline images corresponding to the peripheral outlines of document's images | Naoki Toyoshi, Tomoaki Yokoyama | 1988-12-20 |
| 4785331 | Electrophotographic copying method and apparatus | Naoki Toyoshi, Tomoaki Yokoyama | 1988-11-15 |
| 4766458 | Developing apparatus for use in image-forming system and developing process employing said developing apparatus | Tomoaki Yokoyama, Naoki Toyoshi | 1988-08-23 |
| 4745437 | Copier machines | Naoki Toyoshi, Tomoaki Yokoyama | 1988-05-17 |
| 4659211 | Copying apparatus | — | 1987-04-21 |
| 4640883 | Method of forming composite or dichromatic images | — | 1987-02-03 |
| 4627716 | Toner handling apparatus for electro-photographic copying machines | — | 1986-12-09 |
| 4614697 | Developing method for developing electrostatic latent image | Yoshihiro Uchimoto | 1986-09-30 |
| 4608327 | Method of forming composite images | — | 1986-08-26 |
| 4578337 | Dry process for developing electrostatic latent images with a developer comprising two kinds of magnetic carriers having different physical structure | — | 1986-03-25 |
| 4572102 | Method of controlling replenishment of toners | Shizuo Yuge, Susumu Sakakibara, Naoki Toyoshi | 1986-02-25 |
| 4562130 | Method of forming composite images | — | 1985-12-31 |
| 4514480 | Method of controlling toner concentration for electrophotographic copying apparatus | Kenichi Wada, Kenji Tabuchi | 1985-04-30 |
| 4506804 | Volume detecting device | — | 1985-03-26 |
| 4485760 | Dry process developing method and device employed therefor | Susumu Tanaka | 1984-12-04 |
| 4452173 | Magnetic brush developing apparatus | Kenji Tabuchi | 1984-06-05 |
| 4436413 | Magnetic brush developing apparatus | — | 1984-03-13 |
| 4434221 | Toner concentration detection by measuring current created by transfer of carrier component to non-image areas of image support surface | — | 1984-02-28 |
| 4396275 | Toner image transfer type electrographic copying machine | Kenichi Wada | 1983-08-02 |
| 4392735 | Magnetic brush developing apparatus | — | 1983-07-12 |
| 4376578 | Electrographic copying machine of powder image transfer type | Susumu Tanaka | 1983-03-15 |
| 4353648 | Copy paper separating method for use in electrophotographic copying apparatus | Susumu Tanaka, Hiroshi Mizuno | 1982-10-12 |