Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7877029 | Image forming apparatus and fog control method | Yutaka Miyasaka, Nobuyasu Tamura, Kazutoshi Kobayashi | 2011-01-25 |
| 7751733 | Image forming apparatus with a fog controller | Yutaka Miyasaka, Nobuyasu Tamura, Kazutoshi Kobayashi | 2010-07-06 |
| 7689152 | Image forming apparatus with first and second transfer sections | Satoshi Nishida, Shigetaka Kurosu, Kazuteru Ishizuka | 2010-03-30 |
| 7664445 | Image forming apparatus | Satoshi Nishida, Shigetaka Kurosu, Kazuteru Ishizuka | 2010-02-16 |
| 7574154 | Image forming apparatus with moving speed ratio change section and image forming method including changing circumferential speed ratio | Kazutoshi Kobayashi, Yutaka Miyasaka, Nobuyasu Tamura | 2009-08-11 |
| 6281961 | Developing device with mechanism for smoothly circulating developer | Suguru Hamamichi, Shinichi Yoshimoto, Yoshihiro Shojo, Yukihiko Okuno | 2001-08-28 |
| 6122472 | Developing apparatus having improved developer distribution | Shinichi Yoshimoto, Suguru Hamamichi, Yukihiko Okuno | 2000-09-19 |
| 6029025 | Image forming apparatus with variable efficiency cleaning mechanism | Hiroshi Sakakibara, Hiroshi Fukao, Kuniya Matsuura, Shingo Hirota | 2000-02-22 |
| 6014540 | Image forming apparatus having a device for removing charged materials prior to cleaning | Kenzo Toya, Kazuhiro Sakamoto, Hiroshi Fukao | 2000-01-11 |
| 5963766 | Developing device | Yukihiko Okuno, Suguru Hamamichi, Shinichi Yoshimoto, Kentaro Katori, Yoshihiro Shojo | 1999-10-05 |
| 5950056 | Developing device provided with three developer transport members | Suguru Hamamichi, Kentaro Katori, Shinichi Yoshimoto | 1999-09-07 |
| 5887222 | Image forming apparatus and method for controlling exposure conditions | — | 1999-03-23 |
| 5665508 | Electrophotography carrier having domains dispersed in a matrix resin with a dispersion assistant interposed | Sanji Inagaki, Shoichi Tsuge, Kenzo Toya, Takashi Akazawa | 1997-09-09 |
| 5415963 | Plural color toners, developers comprising the same, image-forming method using the plural toners, and image-forming system therefor | Kenzo Toya, Sanji Inagaki, Shoichi Tsuge | 1995-05-16 |
| 5318871 | Toner for electrophotography and method for producing the same | Sanji Inagaki, Shoichi Tsuge, Kenzo Toya, Yasuhiro Terunuma, Yukako Oya +1 more | 1994-06-07 |
| 4928145 | Developing apparatus having a bucket roller with movable buckets | Hiroshi Okamoto, Tateki Oka, Tetsuo Kyogoku, Toshikazu Suzuki | 1990-05-22 |
| 4924270 | Toner supply device for use in image forming apparatus | Tateki Oka, Yasuyuki Hiromoto, Tomoaki Yokoyama, Kunio Toda | 1990-05-08 |
| 4847658 | Image forming apparatus and image forming method employed therefor | Kaoru Takebe, Naoki Toyoshi, Hiroshi Okamoto, Kenji Tabuchi | 1989-07-11 |