Issued Patents All Time
Showing 76–92 of 92 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4269502 | Electrophotographic copying apparatus for copying manuscripts without interruptions | Hiroshi Tsuda, Kiyoshi Miyashita, Akira Shimizu, Muneo Kasuga | 1981-05-26 |
| 4264184 | Ozone removing device for electrographic apparatus | Hiroshi Furuhashi, Heiji Ogino | 1981-04-28 |
| 4264190 | Toner cleaning device for an electrophotographic apparatus | Hiroshi Tsuda, Kiyoshi Miyashita, Akira Shimizu, Muneo Kasuga | 1981-04-28 |
| 4260242 | Electrophotographic apparatus for forming a duplicated image at any desired position on a record carrier | — | 1981-04-07 |
| 4260236 | Electrophotographic apparatus | Hiroshi Tsuda, Kiyoshi Miyashita, Akira Shimizu, Muneo Kasuga | 1981-04-07 |
| 4260237 | Electrophotographic apparatus | — | 1981-04-07 |
| 4257700 | Electrophotographic apparatus | Hiroshi Tsuda, Kiyoshi Miyashita, Akira Shimizu, Muneo Kasuga | 1981-03-24 |
| 4256402 | Method and apparatus of detecting toner concentration of dry developer | — | 1981-03-17 |
| 4253760 | Electrophotographic apparatus for printing multiple copies of an image on a photosensitive member | Hiroshi Tsuda, Kiyoshi Miyashita, Akira Shimizu, Muneo Kasuga | 1981-03-03 |
| 4248518 | Electrophotographic copying apparatus | — | 1981-02-03 |
| 4248517 | Illuminating device for use in a copying apparatus, a facsimile apparatus, and the like | — | 1981-02-03 |
| 4230786 | Electrographic process of imaging by modulation of ions | Toshio Nakatsubo, Hiroshi Tsuda, Shigo Fujie, Masazi Kanamaru, Shosaku Koseki | 1980-10-28 |
| 4227233 | Corona discharge device for electrographic apparatus | Muneo Kasuga | 1980-10-07 |
| 4218129 | Electrophotographic apparatus | Osamu Ishimoto, Masaru Yamazaki | 1980-08-19 |
| 4215931 | Electrophotographic apparatus | Hiroshi Tsuda, Kiyoshi Miyashita, Akira Shimizu, Muneo Kasuga | 1980-08-05 |
| 4189225 | Electrophotographic apparatus | — | 1980-02-19 |
| 4187800 | Device for manufacturing photosensitive screen | Toshio Nakatsubo, Eiichi Sato | 1980-02-12 |