Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7916161 | Image forming apparatus | Noboru Kusunose, Kazunori Bannai, Yoshinobu Sakaue | 2011-03-29 |
| 7697184 | Optical scanning device and image forming apparatus | Yoshinobu Sakaue, Kazunori Bannai, Noboru Kusunose | 2010-04-13 |
| 7589756 | Optical scanning device, image forming apparatus, optical scanning correcting method, and image forming method | Yoshinobu Sakaue, Kazunori Bannai | 2009-09-15 |
| 7436425 | Optical writing apparatus and image forming apparatus | Kozo Yamazaki, Noboru Kusunose, Kazunori Bannai, Kohta Takenaka, Yoshinobu Sakaue | 2008-10-14 |
| 6033818 | Developing device for an image forming apparatus | Toshihiro Sugiyama, Kazuhiro Yuasa, Shuichi Endoh, Yoshiaki Tanaka, Hiroshi Hosokawa +6 more | 2000-03-07 |
| 5879752 | Method of coating a toner conveyor roller | Eisaku Murakami, Kazuhiro Yuasa, Shuichi Endoh, Yoshiaki Tanaka, Hiroshi Hosokawa +6 more | 1999-03-09 |
| 5863036 | Sheet feeding device and image forming apparatus having the same | Yoshiaki Tanaka, Eiji Takenaka | 1999-01-26 |
| 5845183 | Developing device for an image forming apparatus | Toshihiro Sugiyama, Kazuhiro Yuasa, Shuichi Endoh, Yoshiaki Tanaka, Hiroshi Hosokawa +6 more | 1998-12-01 |
| 5826144 | Developing device for an electrophotographic recording apparatus including bias control of a toner supplying roller | Eiji Takenaka, Kazuhiro Yuasa, Shuichi Endoh, Yoshiaki Tanaka, Hiroshi Hosokawa +6 more | 1998-10-20 |
| 5819145 | Image forming device for forming a uniform toner layer on a developing roller | Yoshiaki Tanaka, Shigekazu Enoki, Hiroshi Hosokawa | 1998-10-06 |
| 5768665 | Image forming apparatus with bias control to prevent undesirable toner deposition | Tetsuo Yamanaka, Kazuhiro Yuasa, Shuichi Endoh, Yoshiaki Tanaka, Hiroshi Hosokawa +6 more | 1998-06-16 |
| 5708942 | Developing device for an image forming apparatus | Toshihiro Sugiyama, Kazuhiro Yuasa, Shuichi Endoh, Yoshiaki Tanaka, Hiroshi Hosokawa +6 more | 1998-01-13 |
| 5697026 | Developing device having the lengths of two toner transporting rollers and an image bearing member in specific relationships | Kazuhiro Yuasa, Shuichi Endoh, Yoshiaki Tanaka, Hiroshi Hosokawa, Mugijiroh Uno +6 more | 1997-12-09 |
| 5689782 | Developing apparatus for electronic photographic recording equipment, having two developer transfer rollers | Eisaku Murakami, Kazuhiro Yuasa, Shuichi Endoh, Yoshiaki Tanaka, Hiroshi Hosokawa +6 more | 1997-11-18 |
| 5666625 | Device for electrostatically developing a latent image on an image carrier | Satoru Komatsubara, Kazuhiro Yuasa, Shuichi Endoh, Yoshiaki Tanaka, Hiroshi Hosokawa +6 more | 1997-09-09 |
| 5627630 | Developing apparatus having a toner supporting roller with an inner layer and surface layer | Yoshiaki Tanaka, Shigekazu Enoki, Hiroshi Hosokawa | 1997-05-06 |
| 5625441 | Developing device for an image forming apparatus | Toshihiro Sugiyama, Kazuhiro Yuasa, Shuichi Endoh, Yoshiaki Tanaka, Hiroshi Hosokawa +6 more | 1997-04-29 |
| 5625438 | Toner, and devices for electrostatically depositing a uniform application thereof | Toshihiro Sugiyama, Kazuhiro Yuasa, Shuichi Endoh, Yoshiaki Tanaka, Hiroshi Hosokawa +6 more | 1997-04-29 |
| 5625440 | Developing device having seals between a toner transport roller and the toner hopper which prevent toner leakage and scattering | Kazuhiro Yuasa, Shuichi Endoh, Yoshiaki Tanaka, Hiroshi Hosokawa, Mugijiroh Uno +6 more | 1997-04-29 |
| 5617191 | Toner conveyor roller and image forming apparatus having the same | Eisaku Murakami, Kazuhiro Yuasa, Shuichi Endoh, Yoshiaki Tanaka, Hiroshi Hosokawa +6 more | 1997-04-01 |
| 5610693 | Developing device for an image forming apparatus | Toshihiro Sugiyama, Kazuhiro Yuasa, Shuichi Endoh, Yoshiaki Tanaka, Hiroshi Hosokawa +6 more | 1997-03-11 |
| 5552870 | Developing device for an image forming apparatus | Eisaku Murakami, Kazuhiro Yuasa, Shuichi Endoh, Yoshiaki Tanaka, Hiroshi Hosokawa +6 more | 1996-09-03 |
| 5489747 | Developing device for an image forming apparatus | Eiji Takenaka, Kazuhiro Yuasa, Shuichi Endoh, Yoshiaki Tanaka, Hiroshi Hosokawa +6 more | 1996-02-06 |
| 5486909 | Developing device for an image forming apparatus | Eiji Takenaka, Kazuhiro Yuasa, Shuichi Endoh, Yoshiaki Tanaka, Hiroshi Hosokawa +6 more | 1996-01-23 |