Issued Patents All Time
Showing 1–25 of 51 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8045871 | Image forming apparatus and image forming method on measured physical quantity | Susumu Monma, Shinya Kobayashi, Shinichi Akatsu, Makoto Yagawara, Hideharu Miki +1 more | 2011-10-25 |
| 7945198 | Fixing device and image forming apparatus comprising same | Takashi Suzuki, Keisuke Kubota, Yoshihiro Sonohara, Daisuke Hara | 2011-05-17 |
| 7574164 | Developing device and electrophotographic apparatus using the same | Hisao Okada, Hiroyuki Mabuchi, Tsuneaki Kawanishi, Akio Tsujita | 2009-08-11 |
| 7548718 | Fixing device for fixing an unfixed toner image on a recording medium and image forming apparatus including the fixing device | Keisuke Kubota, Takashi Suzuki, Yoshihiro Sonohara | 2009-06-16 |
| 7496307 | Fixing device and electro-photographic recording apparatus using the same | Takashi Suzuki | 2009-02-24 |
| 7324778 | Fixing device including heating roller and pressure roller | Takashi Suzuki, Keisuke Kubota, Masato Miwa, Yoshitaka Fujinuma, Tsutomu Nakagawa | 2008-01-29 |
| 7106983 | Color image forming apparatus | Masayoshi Nakayama, Hisao Okada, Keisuke Kubota, Takashi Rokutanda | 2006-09-12 |
| 7090956 | Image forming method and image forming apparatus | Katsuhiko Suzuki, Masami Ishikawa, Tsuneaki Kawanishi, Hisao Okada, Masayoshi Ishii | 2006-08-15 |
| 6993275 | Image position detecting method | Hiroyuki Mabuchi, Toru Miyasaka, Mieko Ishii | 2006-01-31 |
| 6907220 | Cooling device for cooling recording sheet | Takashi Suzuki, Heigo Ueki, Daisuke Hara | 2005-06-14 |
| 6829449 | Image forming apparatus with transfer bias inverting function | Hiroyoshi Matsumoto, Tsuneaki Kawanishi, Hisao Okada, Natsuki Kuribayashi, Masayoshi Ishii +1 more | 2004-12-07 |
| 6813462 | Electro-photographic developing unit | Tsuneaki Kawanishi, Masayoshi Ishii, Hisao Okada, Hiroyoshi Matsumoto, Keisuke Kubota +1 more | 2004-11-02 |
| 6792235 | Electrophotographic apparatus including transferring device | Keisuke Kubota, Masayoshi Ishii, Hideki Ando | 2004-09-14 |
| 6760553 | Electrophotographic cluster printing system with controlled image quality | Keisuke Kubota, Masayoshi Ishii, Shintaro Yamada | 2004-07-06 |
| 6754464 | Full-color recorder using potential split developing process | Yasuo Kikuchi, Akira Terakado, Kazuo Sakaki, Shinya Kobayashi, Akira Arimoto | 2004-06-22 |
| 6738586 | Print control method of electrophotograph and image formation apparatus with potential sensor using the method | Keisuke Kubota, Hiroyuki Mabuchi, Masayoshi Ishii, Shinichi Akatsu | 2004-05-18 |
| 6686943 | Control method of an electrophotographic record apparatus and image formation apparatus including controlling developing bias and photoconductor surface potential | Masayoshi Ishii, Keisuke Kubota, Shintaro Yamada | 2004-02-03 |
| 6684036 | Image forming apparatus | Keisuke Kubota, Hiroyuki Mabuchi, Masayoshi Ishii, Shinichi Akatsu | 2004-01-27 |
| 6556229 | Electrophotographic apparatus having a fringe development preventing mechanism | Nobuyoshi Hoshi, Hisao Okada, Yoshihiko Sano, Shinichi Akatsu, Shinya Kobayashi | 2003-04-29 |
| 6543360 | Printing plate and printer using it | Hiroshi Sasaki, Mitsuyoshi Shouji, Kenichi Kawashima, Yutaka Ito, Nobuyoshi Hoshi | 2003-04-08 |
| 6487384 | Image forming electrophotography apparatus and magnetic developing unit | Hisao Okada, Hiroyuki Mabuchi, Shinya Kobayashi, Yasuo Takuma, Masayoshi Ishii +1 more | 2002-11-26 |
| 6411786 | Toner image fixing device using a parking agent including a volatile odor component | Michio Yokosuka | 2002-06-25 |
| 6271874 | Electrophotographic printer having an image memory, a horizontal scanning fringe correction exposure determining section, a vertical scanning fringe correction exposure determining section, and a switch | Seiji Maruo, Shinichi Akatsu, Hiroyuki Mabuchi, Shinya Kobayashi | 2001-08-07 |
| 6240270 | Color image forming method and device using potential division development | Hiroyuki Mabuchi, Masayoshi Ishii, Koji Kato, Hisayoshi Kato | 2001-05-29 |
| 6131000 | Electrophotographic printing apparatus using electric potential dividing development | Shinichi Akatsu, Kenichi Ito, Nobuyoshi Hoshi, Ryuuichi Shimizu, Hisao Okada +3 more | 2000-10-10 |