Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6917772 | Image forming apparatus for controlling density of image, detachably attachable device, and memory device | — | 2005-07-12 |
| 6400918 | Cleaning device and image forming apparatus using the cleaning device | Yasuyuki Ishii, Takashi Hibi, Takeo Shoji | 2002-06-04 |
| 6226467 | Developer unit detachably attachable to image forming apparatus | Tsuyoshi Nakagawa, Tetsuya Kobayashi, Yoshiro Saito, Kazunori Hashimoto | 2001-05-01 |
| 5956541 | Controlling image formation based on amount of developer recovered | Satoshi Tsuruya | 1999-09-21 |
| 5835818 | Service life informing device for charged member, informing method thereof, process cartridge and image forming apparatus | Takashi Hibi, Takeo Shoji, Yasuyuki Ishii, Hiroaki Ogata, Eiichiro Teshima | 1998-11-10 |
| 5574545 | Method for transferring toner from developer carrying member to image bearing member using chains of magnetic particles formed on developer carrying member and contacting image bearing member, and alternating electric field | Atsushi Hosoi, Hatsuo Tajima, Takashi Saito, Hiroshi Tajika, Masaaki Yamaji | 1996-11-12 |
| 5357322 | Charger | — | 1994-10-18 |
| 5353101 | Charging member featuring a cut edge, and charging device employing same for use in a detachable process unit in an image forming apparatus | Hiroyuki Adachi | 1994-10-04 |
| 5321472 | Charging member with a bridging electrode structure and charging device using same in an image forming apparatus | Hiroyuki Adachi | 1994-06-14 |
| 5287149 | Image forming apparatus having image transfer electrode contactable to transfer material | — | 1994-02-15 |
| 5095335 | Copier with retractable charging unit to prevent damage to drum when removing process cartridge | Kazushi Watanabe, Takashi Hibi, Masahide Kinoshita, Takeo Shoji | 1992-03-10 |
| 4933254 | Method and apparatus for transferring toner from carrying member to image bearing member using chains of magnetic particles | Atsushi Hosoi, Hatsuo Tajima, Takashi Saito, Hiroshi Tajika, Masaaki Yamaji | 1990-06-12 |
| 4916492 | Developer method and apparatus | Hatsuo Tajima, Masaaki Yamaji, Atsushi Hosoi, Hiroshi Tajika | 1990-04-10 |
| 4887131 | Developing apparatus using magnetic particles and toner particles | Masahide Kinoshita, Hatsuo Tajima, Hiroshi Tajika, Atsushi Hosoi | 1989-12-12 |
| 4873551 | Developing apparatus using magnetic carrier under AC field | Hatsuo Tajima, Atsushi Hosoi, Hiroshi Tajika, Masahide Kinoshita | 1989-10-10 |
| 4739363 | Image forming apparatus | Hiroyuki Adachi, Kimio Nakahata | 1988-04-19 |
| 4699499 | Image forming apparatus | Hiroyuki Adachi, Kimio Nakahata | 1987-10-13 |