Issued Patents All Time
Showing 51–67 of 67 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4318611 | Document feed control in an electrophotographic system | Hiroshi Tsuda, Masaji Nishikawa, Akira Shimizu, Muneo Kasuga | 1982-03-09 |
| 4298276 | Cassette type roll sheet feeding apparatus | Hiroshi Tsuda, Katsuhiko Kimura, Heihachi Arima, Osamu Ishimoto | 1981-11-03 |
| 4298270 | Electrographic apparatus | Hiroshi Tsuda, Masaji Nishikawa, Akira Shimizu, Muneo Kasuga | 1981-11-03 |
| 4295734 | Filter assembly for collecting used toner of electrophotographic copying machine | Hiroshi Tsuda, Masaji Nishikawa, Akira Shimizu, Muneo Kasuga | 1981-10-20 |
| 4282990 | Dispenser for granular material | — | 1981-08-11 |
| 4271784 | Apparatus for discharging a fatigued developing agent in a magnetic brush developing device | Osamu Ishimoto, Hiroshi Tsuda | 1981-06-09 |
| 4270860 | Electrophotographic apparatus employing a control assembly for controlling successive duplication of a document | Hiroshi Tsuda, Masaji Nishikawa, Akira Shimizu, Muneo Kasuga | 1981-06-02 |
| 4269502 | Electrophotographic copying apparatus for copying manuscripts without interruptions | Hiroshi Tsuda, Masaji Nishikawa, Akira Shimizu, Muneo Kasuga | 1981-05-26 |
| 4269407 | Sheet holding cassette | Hiroshi Tsuda, Takashi Matsuyama | 1981-05-26 |
| 4264190 | Toner cleaning device for an electrophotographic apparatus | Hiroshi Tsuda, Masaji Nishikawa, Akira Shimizu, Muneo Kasuga | 1981-04-28 |
| 4260236 | Electrophotographic apparatus | Hiroshi Tsuda, Masaji Nishikawa, Akira Shimizu, Muneo Kasuga | 1981-04-07 |
| 4257700 | Electrophotographic apparatus | Hiroshi Tsuda, Masaji Nishikawa, Akira Shimizu, Muneo Kasuga | 1981-03-24 |
| 4253760 | Electrophotographic apparatus for printing multiple copies of an image on a photosensitive member | Hiroshi Tsuda, Masaji Nishikawa, Akira Shimizu, Muneo Kasuga | 1981-03-03 |
| 4223993 | Electrophotographic apparatus | Hiroshi Tsuda | 1980-09-23 |
| 4218135 | Roll sheet cassette loading apparatus | Hiroshi Tsuda, Katsuhiko Kimura, Heihachi Arima, Osamu Ishimoto | 1980-08-19 |
| 4215931 | Electrophotographic apparatus | Hiroshi Tsuda, Masaji Nishikawa, Akira Shimizu, Muneo Kasuga | 1980-08-05 |
| 4204730 | Electrophotographic apparatus | Muneo Kasuga | 1980-05-27 |