Issued Patents All Time
Showing 51–71 of 71 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6704524 | Method of detecting life of image bearing member, image forming apparatus and cartridge | Minoru Matsuguma | 2004-03-09 |
| 6647230 | Image-forming apparatus for use with negatively-charged toner and featuring a negatively-chargeable image-bearing member, and process cartridge using same | Tetsuya Kobayashi, Tsuyoshi Nakagawa, Shinji Uehara | 2003-11-11 |
| 6643484 | Image forming apparatus including image bearing member rotatable at different peripheral velocities | Katsuhiro Kojima, Tetsuya Kobayashi | 2003-11-04 |
| 6600887 | Image forming apparatus featuring a slide friction sheet for dispersing contamination from a charged rotary member | Norio Takami, Kazunori Kobayashi | 2003-07-29 |
| 6594462 | Developing apparatus using toner with conductive particles | Tomomi Kakeshita | 2003-07-15 |
| 6577823 | Method of detecting life of image bearing member, image forming apparatus and cartridge | Minoru Matsuguma | 2003-06-10 |
| 6574444 | Developing apparatus wherein seal-inflicted damage to an end edge of a developing roller is prevented | Shinji Uehara, Tetsuya Kobayashi, Tsuyoshi Nakagawa | 2003-06-03 |
| 6542710 | Developing apparatus for preventing developer from attaching to developer electrifying member | Tomomi Kakeshita, Shinji Uehara | 2003-04-01 |
| 6529699 | Image forming apparatus and process cartridge detachably attachable to image forming apparatus comprising an image bearing body, and a developer carrying body | Tetsuya Kobayashi, Tsuyoshi Nakagawa, Shinji Uehara | 2003-03-04 |
| 6522842 | Developing apparatus and image forming apparatus | Shinji Uehara, Tomomi Kakeshita | 2003-02-18 |
| 6400918 | Cleaning device and image forming apparatus using the cleaning device | Norihisa Hoshika, Takashi Hibi, Takeo Shoji | 2002-06-04 |
| 6314257 | Simultaneous developing/cleaning device | Shinji Uehara, Tomomi Kakeshita | 2001-11-06 |
| 6308038 | Developing apparatus | Tomomi Kakeshita | 2001-10-23 |
| 6229979 | Developing charging member supplied with a voltage of a same polarity as that of a developer and not less than a charge starting voltage and a developing charging roller with internal bearing | Tadayuki Tsuda, Shinichi Sasaki, Kanji Yokomori, Kouji Hashimoto, Toru Oguma +1 more | 2001-05-08 |
| 6170945 | Ink jet recording apparatus with cartridge storage | Shinya Matsui, Toshimitsu Hirakue, Masakazu Ozawa, Junichi Asano, Masanori Morita +2 more | 2001-01-09 |
| 6144820 | Developing apparatus with a sealing member having an insulating layer and a conductive portion | Kenji Matsuda, Kouji Hashimoto, Akiyoshi Fujita, Nobuharu Hoshi, Norio Takami +1 more | 2000-11-07 |
| 5835818 | Service life informing device for charged member, informing method thereof, process cartridge and image forming apparatus | Norihisa Hoshika, Takashi Hibi, Takeo Shoji, Hiroaki Ogata, Eiichiro Teshima | 1998-11-10 |
| 5807714 | Method of production of antigen-specific glycosylation inhibiting factor | Kimishige Ishizaka | 1998-09-15 |
| 5799233 | Charging apparatus and image forming apparatus | Hiroyuki Adachi, Hiroki Kisu, Hiroaki Ogata | 1998-08-25 |
| 5660489 | Sheet-supplying roller recording device | Toshimitsu Hirakue, Shigeru Yoshimura, Kenji Kurita, Masakazu Ozawa, Masanori Morita +2 more | 1997-08-26 |
| 5591294 | Recording sheet manufacturing and storing method, recording sheet obtained by the method, and ink jet recording method using the recording sheet | Mamoru Sakaki, Miyuki Fujita | 1997-01-07 |