Issued Patents All Time
Showing 26–50 of 92 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4550998 | Toner concentration detecting device | — | 1985-11-05 |
| 4548401 | Sheet feed apparatus | — | 1985-10-22 |
| 4533228 | Optical image projector for projecting an erect positive image of unity magnification and for minimizing degradation in resolution | — | 1985-08-06 |
| 4522866 | Elastomer member with non-tacky surface treating layer and method of manufacturing same | Takeji Takagi, Masao Ueki | 1985-06-11 |
| 4518247 | Apparatus for forming image by developing charge latent image with toner | — | 1985-05-21 |
| 4518248 | Apparatus for forming image by developing charge latent image with two component dry developing agent | — | 1985-05-21 |
| 4516850 | Toner cleaning device for electrophotographic copying machine | — | 1985-05-14 |
| 4462674 | Copying apparatus of moving document type capable of copying an optical image projected from an option device | — | 1984-07-31 |
| 4457993 | Electrophotographic process of retention type | — | 1984-07-03 |
| 4442191 | Electrophotographic copying process for producing a plurality of copies | — | 1984-04-10 |
| 4440844 | Electrophotographic copying process involving simultaneous charging and imaging | — | 1984-04-03 |
| 4440843 | Electrophotographic copying process for forming positive or negative images | — | 1984-04-03 |
| 4433038 | Electrophotographic copying process involving simultaneous charging and imaging | — | 1984-02-21 |
| 4420547 | Photosensitive member for electrophotography having ultraviolet absorption layer | — | 1983-12-13 |
| 4415260 | Duplicating system comprising electrophotographic copier and option device | Muneo Kasuga, Kiyoshi Miyashita | 1983-11-15 |
| 4415254 | Electrophotographic copying apparatus with transfer bias voltage stabilizer | — | 1983-11-15 |
| 4413044 | Electrophotographic copying process | — | 1983-11-01 |
| 4408870 | Duplicating system comprising electrophotographic copying apparatus and option devices | Kiyoshi Miyashita, Muneo Kasuga | 1983-10-11 |
| 4405224 | Electrophotographic apparatus having means for removing undesired charge concentrated on an edge portion of a photosensitive member | Muneo Kasuga, Tomoki Funakubo | 1983-09-20 |
| 4401383 | Transfer device for use in retention type electrophotographic copying machine | Yoshiro Suzuki, Tadahiro Yasuda, Eiichi Sato, Tadashi Aoki | 1983-08-30 |
| 4395115 | Conveyor unit for book carrier in electro-photographic copying machines | Hiroshi Tsuda, Kiyoshi Miyashita, Akira Shimizu, Muneo Kasuga | 1983-07-26 |
| 4394427 | Electrophotographic sensitizing screen with peripherally clogged apertures | Norio Amemiya, Tadahiro Yasuda, Shigeru Nakayama | 1983-07-19 |
| 4394432 | Method for printing a plurality of duplicated copies from the same electrostatic charge latent image | — | 1983-07-19 |
| 4392737 | Electrophotographic copying apparatus | — | 1983-07-12 |
| 4391502 | Electrophotographic apparatus having means for adjusting the reproduction properties of subsequent copies after a first copy has been produced | — | 1983-07-05 |