Issued Patents All Time
Showing 1–25 of 63 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9046802 | Liquid developer containing electro-conductive particles and an electro-conductive pattern forming method using said material and an electro-conductive pattern forming apparatus using said material | Ichiro Yoshida | 2015-06-02 |
| 6146804 | Electrophotographic liquid developer and image forming apparatus | Hidetoshi Miyamoto, Toshimitsu Fujiwara, Masaharu Kanazawa, Seishi Ojima | 2000-11-14 |
| 5981133 | Liquid developer and image forming apparatus | Hidetoshi Miyamoto, Toshimitsu Fujiwara, Masaharu Kanazawa, Seishi Ojima | 1999-11-09 |
| 5958643 | Liquid developer having polymer particles of a flat configuration dispersed in a dispersion medium | Toshimitsu Fujiwara, Hidetoshi Miyamoto | 1999-09-28 |
| 5953566 | Color image forming method and apparatus providing for efficient toner transfer based on toner zeta potentials | Toshimitsu Fujiwara, Masaharu Kanazawa, Seishi Ojima, Hidetoshi Miyamoto | 1999-09-14 |
| 5843613 | Liquid developer | Toshimitsu Fujiwara, Hidetoshi Miyamoto | 1998-12-01 |
| 5826148 | Liquid developer transporting device and liquid developing device | Toshimitsu Fujiwara, Hidetoshi Miyamoto, Takaji Kurita | 1998-10-20 |
| 5780196 | Toner and liquid developer, liquid developer, and method of producing same | Toshimitsu Fujiwara, Masaharu Kanazawa, Seishi Ojima, Hidetoshi Miyamoto | 1998-07-14 |
| 5745830 | Intermediate transfer member for image forming apparatus | Toshimitsu Fujiwara, Hidetoshi Miyamoto | 1998-04-28 |
| 5724629 | Liquid developer monitoring device, liquid developer controlling system, and image forming apparatus using same | Toshimitsu Fujiwara, Hidetoshi Miyamoto, Masami Yamada | 1998-03-03 |
| 5689779 | Liquid developer and developing method and developing apparatus using same | Hidetoshi Miyamoto, Toshimitsu Fujiwara | 1997-11-18 |
| 5608503 | Image forming apparatus using an intermediate transfer member, an intermediate transfer member and image forming method | Toshimitsu Fujiwara, Hidetoshi Miyamoto | 1997-03-04 |
| 5574548 | Method and device for developing with a liquid | Toshimitsu Fujiwara, Hidetoshi Miyamoto | 1996-11-12 |
| 5568231 | Charging device for charging the surface of a photosensitive member in an electrophotographic image forming device | Masaki Asano, Akihito Ikegawa, Izumi Osawa | 1996-10-22 |
| 5561264 | Liquid-type developing device | Toshimitsu Fujiwara, Hidetoshi Miyamoto, Takaji Kurita | 1996-10-01 |
| 5552865 | Charging device and method for charging a charge-receiving member by a charging member by discharge therebetween based on difference in electric potential between the charging member and the charge-receiving member | Izumi Osawa, Akihito Ikegawa, Masaki Asano | 1996-09-03 |
| 5530532 | Image forming apparatus using intermediate transfer member having surface roughness to toner size ratio | Toshimitsu Fujiwara | 1996-06-25 |
| 5489973 | An electrically conductive member of an image forming apparatus containing an impurity atom | Masaki Asano, Noriko Yoshida, Akihito Ikegawa, Izumi Osawa, Kenzo Tanaka | 1996-02-06 |
| 5396317 | Magnetic particle-containing member for use in copying machine | Izumi Osawa, Kenji Masaki, Isao Doi | 1995-03-07 |
| 5376425 | Contact member for controlling an electrostatic state of a chargeable member | Masaki Asano, Akihito Ikegawa, Izumi Osawa, Kenzo Tanaka | 1994-12-27 |
| 5371578 | Image forming apparatus including means for removing counter charged toner from the charging means | Masaki Asano, Akihito Ikegawa, Izumi Osawa | 1994-12-06 |
| 5330873 | Production method of photosensitive member by eliminating outermost surface portion of photosensitive layer | Isao Doi, Kenji Masaki, Izumi Osawa | 1994-07-19 |
| 5328790 | Photoreceptor for use in contact charging method and image forming apparatus employing said photoreceptor | Masaki Asano, Akihito Ikegawa, Izumi Osawa | 1994-07-12 |
| 5289234 | Image forming apparatus with charge brush | Masaki Asano, Akihito Ikegawa, Izumi Osawa | 1994-02-22 |
| 5278614 | Contact charger and image forming apparatus incorporating the contact charger | Akihito Ikegawa, Masaki Asano, Izumi Osawa | 1994-01-11 |