Issued Patents All Time
Showing 26–50 of 53 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5242776 | Organic photosensitive member having fine irregularities on its surface | Seishi Ojima, Kenji Masaki, Shuji Iino, Izumi Osawa | 1993-09-07 |
| 5232799 | Organic photosensitive member comprising a binder resin and a solvent | Izumi Osawa, Shuji Iino, Kenji Masaki | 1993-08-03 |
| 5198317 | Organic photosensitive member comprising a charge transport layer with a binder resin and a solvent | Izumi Osawa, Shuji Iino, Kenji Masaki | 1993-03-30 |
| 5155002 | Image forming method | Izumi Osawa, Seishi Ojima, Kenji Masaki, Shuji Iino | 1992-10-13 |
| 5139906 | Photosensitive medium with a protective layer of amorphous hydrocarbon having an absorption coefficient greater than 10,000 cm.sup.-1 | Izumi Osawa, Shuji Iino, Kenji Masaki | 1992-08-18 |
| 5138381 | Image forming apparatus equipped with separating pawl with specified surface roughness | Kenji Masaki, Shuji Iino, Izumi Osawa | 1992-08-11 |
| 5125644 | Separating device for sheet-like member including separating pawl coated with amorphous carbon layer | Kenji Masaki, Shuji Iino, Izumi Osawa | 1992-06-30 |
| 5096793 | Photosensitive member excellent in antioxidation | Izumi Osawa | 1992-03-17 |
| 5082756 | Photosensitive member for retaining electrostatic latent images | — | 1992-01-21 |
| 4994337 | Photosensitive member having an overcoat layer | Kenji Masaki, Izumi Osawa | 1991-02-19 |
| 4971880 | Developer containing halogenated amorphous carbon particles prepared by plasma-polymerization | Hideo Hotomi, Izumi Osawa, Masanori Fujiwara, Shuji Iino, Kenji Masaki | 1990-11-20 |
| 4965156 | Photosensitive member having an overcoat layer and process for manufacturing the same | Hideo Hotomi, Kenji Masaki, Shuji Iino, Izumi Osawa, Masanori Fujiwara | 1990-10-23 |
| 4891292 | Photosensitive member having an amorphous carbon overcoat layer | Kenji Masaki, Izumi Osawa, Masanori Fujiwara | 1990-01-02 |
| 4886724 | Photosensitive member having an overcoat layer and process for manufacturing the same | Kenji Masaki, Izumi Osawa, Masanori Fujiwara, Yumiko Takedomi | 1989-12-12 |
| 4882256 | Photosensitive member having an overcoat layer comprising amorphous carbon | Izumi Osawa, Syuji Iino, Hideo Hotomi, Kenji Masaki | 1989-11-21 |
| 4876168 | Photosensitive member comprising charge generating layer and charge transporting layer comprising amorphous carbon containing chalogen or transition metal | Hideo Hotomi, Izumi Osawa, Syuji Iino, Masanori Fujiwara | 1989-10-24 |
| 4851313 | Photosensitive member comprising charge generating layer and charge transporting layer and process for preparing same | Izumi Osawa, Syuji Iino, Hideo Hotomi, Mitsutoshi Nakamura | 1989-07-25 |
| 4847653 | Triboelectrically charging member | Hideo Hotomi, Toshiya Natsuhasra | 1989-07-11 |
| 4810606 | Photosensitive member comprising charge generating layer and charge transporting layer | Shuji Iino, Hideo Hotomi, Mitsutoshi Nakamura, Izumi Osawa | 1989-03-07 |
| 4801515 | Photosensitive member having an overcoat layer | Shuji Iino, Hideo Hotomi, Masanori Fujiwara, Izumi Osawa | 1989-01-31 |
| D298318 | Stand and handset for telephone answering machine | — | 1988-11-01 |
| 4698287 | Photosensitive member having an amorphous silicon layer | Izumi Osawa, Toshiya Natsuhara | 1987-10-06 |
| 4686164 | Electrophotosensitive member with multiple layers of amorphous silicon | Izumi Osawa, Toshiya Natsuhara | 1987-08-11 |
| 4683184 | Electrophotosensitive member having alternating amorphous semiconductor layers | Izumi Osawa, Toshiya Natsuhara | 1987-07-28 |
| 4683185 | Electrophotosensitive member having a depletion layer | Izumi Osawa, Toshiya Natsuhara | 1987-07-28 |