Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10252386 | Tool driving device, tool driving method, and tool feeding mechanism for tool driving device | Manabu Saito, Tatsuo Nakahata, Hideharu Takahashi, Masao Watanabe | 2019-04-09 |
| 9827617 | Drill and method of manufacturing drill | Manabu Saito, Tatsuo Nakahata, Hideharu Takahashi, Masao Watanabe | 2017-11-28 |
| 7620351 | Developing device and image forming device | Hiroshi Onda, Syohji Tomita, Takeshi Wakabayashi, Hiroshi Ishii | 2009-11-17 |
| 7406280 | Magnet roller developing device and image forming apparatus for reducing obstructions in developer circulation path | Syohji Tomita, Hiroshi Onda, Takeshi Wakabayashi, Hiroshi Ishii | 2008-07-29 |
| 7319828 | Developing agent detecting mechanism section of developing apparatus | Yohichi Takesawa, Shigeki Hayashi, Eiichi Kido | 2008-01-15 |
| 7020416 | Image forming apparatus with arrangement for controlling assembly order | Keiji Kato, Yasuyuki Ishiguro, Fumito Mizoguchi, Wataru Yoshida, Atsushi Inoue +1 more | 2006-03-28 |
| 6868239 | Developer detection device and printer | Atsushi Inoue, Wataru Yoshida, Fumito Mizoguchi, Keiji Katoh, Toshihide Ohgoshi | 2005-03-15 |
| 6853821 | Image forming device and toner device | Yasuyuki Ishiguro, Keiji Kato, Atsushi Inoue, Toshihide Ohgoshi, Humito Mizoguchi +1 more | 2005-02-08 |
| 6792217 | Use status detecting mechanism and image-producing unit | Yasuyuki Ishiguro, Takeshi Wakabayashi, Toshihide Ohgoshi | 2004-09-14 |
| 6741822 | Image forming apparatus with members for holding a cartridge | Yasuyuki Ishiguro, Wataru Yoshida, Toshihide Ohgoshi, Atsushi Inoue, Takahiko Kimura | 2004-05-25 |
| 6421517 | Toner supply device with rotatable agitating element | Yasuyuki Ishiguro, Masatoshi Kaneshige, Hiroshi Tanisawa, Haruko Yoneda, Jun Yamaguchi +4 more | 2002-07-16 |
| 6415126 | Developing unit with agitator and conveying sheet for toner | Masatoshi Kaneshige, Yasuyuki Ishiguro, Tsutomu Nagata, Hiroshige Araki, Yoshinori Otsuka | 2002-07-02 |
| 6385422 | Developing unit equipped with a toner replenishing device configured with a conveying sheet and rotator | Yasuyuki Ishiguro, Tsutomu Nagata, Masatoshi Kaneshige, Hiroshi Tanisawa, Jun Yamaguchi +2 more | 2002-05-07 |
| 6360066 | Developing apparatus having stirring shafts with elliptic stirring vanes | Hiroshi Kawahito, Keiji Kato, Yasuyuki Ishiguro, Jun Yamaguchi, Tsutomu Nagata | 2002-03-19 |
| 6347207 | Developing unit and toner replenishing device with conveying apparatus | Yasuyuki Ishiguro, Hiroshi Tanisawa, Yoshinori Otsuka, Jun Yamaguchi, Tsutomu Nagata +2 more | 2002-02-12 |
| 6272298 | Developer cartridge | Jun Yamaguchi, Yoshinori Otsuka, Yasuyuki Ishiguro, Hiroshi Tanisawa, Tsutomu Nagata | 2001-08-07 |
| 6266507 | Developing device having low turbulence developer flow | Hitoshi Nagahama, Katsuaki Sumida | 2001-07-24 |
| 6167227 | Developing unit and image forming apparatus | Syouichi Fujita, Itaru Kawabata, Hirofumi Sakita, Hideji Saiko, Mitsuru Tokuyama | 2000-12-26 |
| 6035168 | Developing device having a reduced width in the horizontal direction | Jitsuo Masuda, Hiroshi Kawamoto, Makoto Uehara, Yasutaka Maeda, Takeshi Wakabayashi +6 more | 2000-03-07 |
| 5659908 | Air mat and method for manufacturing the mat | — | 1997-08-26 |
| 5659859 | Developer agitating/conveying device | Shinji Kikuta, Tsutomu Nagata, Motoyuki Fukuda, Mitsuhiro Kashihara, Akihiko Ichiba | 1997-08-19 |
| 5510882 | Developing device having an improved agitation and conveyance device | Shinji Kikuta, Motoyuki Fukuda, Tsutomu Nagata, Akihiko Ichiba | 1996-04-23 |
| 5173388 | Developing process excellent in image reproducibility | Tsutomu Uezono, Akihiro Watanabe, Mitsushi Kuroki, Shoji Tomita | 1992-12-22 |
| 4607942 | Electrostatic copying apparatus | Haruo Koyama | 1986-08-26 |