Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5692232 | Electrophotographic apparatus that prevents toner from attaching to a contact member of a transfer device | Yoshiaki Okano, Hiroshi Hashizume, Hirotaka Fukuyama, Tetsuya Nakamura, Satoshi Katagata +4 more | 1997-11-25 |
| 5655178 | Electrophotographic apparatus having cleaning device and developing device configured to prevent toner leakage | Masaaki Ishikawa, Michihisa Iguchi, Hiroshi Hashizume, Tetsuya Nakamura, Yoshiaki Okano +6 more | 1997-08-05 |
| 5600417 | Developing device for electrophotographic apparatus | Michihisa Iguchi, Hiroshi Hashizume, Seiji Arai, Yoshiaki Okano, Chinobu Sakai +4 more | 1997-02-04 |
| 5537192 | Transfer roller and toner for electrophotographic apparatus | Michihisa Iguchi, Hiroshi Hashizume, Seiji Arai, Yoshiaki Okano, Chinobu Sakai +4 more | 1996-07-16 |
| 5488462 | Electrophotographic apparatus having developing device with seals for preventing toner leakage | Masaaki Ishikawa, Michihisa Iguchi, Hiroshi Hashizume, Tetsuya Nakamura, Yoshiaki Okano +6 more | 1996-01-30 |
| 5412364 | Toner pack and development device for use in electrophotographic apparatus | Michihisa Iguchi, Hiroshi Hashizume, Seiji Arai, Yoshiaki Okano, Chinobu Sakai +4 more | 1995-05-02 |
| 5404213 | Electrophotographic printing apparatus capable of printing images by electrophotographic processing and its start-up method | Yoshiaki Okano, Tetsuya Nakamura | 1995-04-04 |
| 5138396 | Device for preventing paper from falling in a transfer device for electrophotographic recorders | Yasuo Fujii | 1992-08-11 |
| 5126796 | Electrophotographic recording apparatus including a pivotably mounted and elastically supported transfer unit and auxiliary roller | Yasuo Fujii | 1992-06-30 |
| 4849823 | Facsimile apparatus | — | 1989-07-18 |
| 4542379 | Circuit for driving a display device | — | 1985-09-17 |