Issued Patents All Time
Showing 25 most recent of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7583916 | Image forming apparatus | Syuhei Kawasaki, Seiji Yamaguchi, Shinji Uehara | 2009-09-01 |
| 7542690 | Color image forming apparatus, and program and method of controlling a color image forming apparatus | Hajime Sugaya | 2009-06-02 |
| 7349658 | Image forming apparatus that has a full-color mode and a monocolor mode, and image forming apparatus that can adjust the length of a non-image forming region during mode switching state | Yuki Nishizawa, Eiichiro Teshima | 2008-03-25 |
| 7218871 | Image forming apparatus and method of controlling same | — | 2007-05-15 |
| 7068955 | Image forming apparatus having developer amount detector | Shinya Yamamoto, Hiroshi Sasame, Kazushige Sakurai, Takashi Hibi, Tomomi Kakeshita | 2006-06-27 |
| 7058320 | Image forming apparatus, cartridge detachably mountable to the image forming apparatus, developer remainder displaying method and system | Shinya Yamamoto | 2006-06-06 |
| 6925267 | MEMORY DEVICE STORING INFORMATION WARNING A USER ABOUT THE DEVELOPER-REMAINING AMOUNT, A PROCESS CARTRIDGE INCLUDING A MEMORY STORING SUCH INFORMATION, AND A CONTROL SYSTEM AND A MEMORY SYSTEM FOR WARNING A USER ABOUT THE DEVELOPER-REMAINING AMOUNT | Shinya Yamamoto, Hiroshi Sasame, Kazushige Sakurai, Takashi Hibi, Tomomi Kakeshita | 2005-08-02 |
| 6912366 | IMAGE FORMING APPARATUS COMPRISING MEANS FOR DETECTING AN AMOUNT OF DEVELOPER CONTAINED IN A DEVELOPER CONTAINER, A MEMORY FOR STORING THE AMOUNT DETECTED BY THE DETECTING MEANS, AND CONTROL MEANS FOR UPDATING THE INFORMATION STORED IN THE MEMORY | Shinya Yamamoto, Hiroshi Sasame, Kazushige Sakurai, Takashi Hibi, Tomomi Kakeshita | 2005-06-28 |
| 6785482 | Image forming apparatus having a transfer current detection device and control for developing bias in non-image area | Miyuki Oki | 2004-08-31 |
| 6714745 | Image forming apparatus having a plurality of image forming stations, and unit detachably mountable on the apparatus | Hiroshi Sasame, Shinya Yamamoto, Tomomi Kakeshita | 2004-03-30 |
| 6594451 | Image forming apparatus, and use situation reporting system for reporting use situations of developer and other consumables stowed in image forming apparatus | Tomomi Kakeshita, Hiroshi Sasame, Shinya Yamamoto | 2003-07-15 |
| 6587649 | Image forming apparatus, cartridge detachably mountable to the image forming apparatus, developer remainder displaying method and system | Shinya Yamamoto | 2003-07-01 |
| 6546212 | Image forming apparatus and unit detachably attachable to the same image forming apparatus and information displaying system related to unit detachably attachable to the same image forming apparatus | Hiroshi Sasame, Shinya Yamamoto | 2003-04-08 |
| 6496664 | Image forming apparatus comprising storing means for storing information that a setting operation is performed | Seiji Yamaguchi, Masao Uyama | 2002-12-17 |
| 6493519 | Image forming apparatus having a plurality of image forming stations, and unit detachably mountable on the apparatus | Hiroshi Sasame, Shinya Yamamoto, Tomomi Kakeshita | 2002-12-10 |
| 6476837 | Developer remaining amount detecting apparatus and developer remaining amount detecting method | — | 2002-11-05 |
| 6465983 | Overcurrent protection device | Masaya Suenari, Mikio Saito | 2002-10-15 |
| 6453139 | Image forming apparatus | Hiroshi Sasame, Yasunari Watanabe, Shinya Yamamoto, Motoki Adachi | 2002-09-17 |
| 6415125 | Developing apparatus featuring an area where a partly exposed developer agitating member and conveying member are disposed | Shinya Yamamoto | 2002-07-02 |
| 6354390 | Power assisted wheelchair | Atsushi Uchiyama | 2002-03-12 |
| 6230831 | Wheel chair with auxiliary power | Kenji Tokura | 2001-05-15 |
| 5835818 | Service life informing device for charged member, informing method thereof, process cartridge and image forming apparatus | Norihisa Hoshika, Takashi Hibi, Takeo Shoji, Yasuyuki Ishii, Eiichiro Teshima | 1998-11-10 |
| 5818189 | Electric power-assisted wheelchair | Atsushi Uchiyama | 1998-10-06 |
| 5799233 | Charging apparatus and image forming apparatus | Yasuyuki Ishii, Hiroyuki Adachi, Hiroki Kisu | 1998-08-25 |
| 5715499 | Contact charger having an oscillating voltage for charging a photosensitive member | Michihito Yamazaki, Hiroki Kisu, Erika Asano, Eiji Funabashi, Kazumi Yamauchi | 1998-02-03 |