Issued Patents All Time
Showing 26–50 of 67 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8299700 | Electron emitting element having an electron acceleration layer, electron emitting device, light emitting device, image display device, cooling device, and charging device | Ayae Nagaoka, Hiroyuki Hirakawa, Yasuo Imura | 2012-10-30 |
| 8293446 | Resin-coated carrier method of manufacturing the same, two-component developer including resin-coated carrier, developing device and image forming apparatus | Osamu Wada, Takanori Kamoto, Nobuyuki Yoshioka, Ayae Nagaoka | 2012-10-23 |
| 8249487 | Electron emitting element, electron emitting device, charging device, image forming apparatus, electron-beam curing device, light emitting device, image display device, air blowing device, and cooling device | Yasuo Imura, Hiroyuki Hirakawa, Ayae Nagaoka | 2012-08-21 |
| 8192908 | Carrier, developer, development device, image forming apparatus and image forming method | Takanori Kamoto, Nobuyuki Yoshioka, Yoshinori Mutoh, Hiroyuki Hirakawa, Takashi Hara | 2012-06-05 |
| 8164247 | Electron emitting element, electron emitting device, light emitting device, image display device, air blowing device, cooling device, charging device, image forming apparatus, and electron-beam curing device | Hiroyuki Hirakawa, Ayae Nagaoka, Yasuo Imura | 2012-04-24 |
| 8110971 | Light emitting element, light emitting device, image display device, method of driving light emitting element, and method of producing light emitting element | Hiroyuki Hirakawa, Yasuo Imura, Ayae Nagaoka | 2012-02-07 |
| 7970318 | Charging device and image forming device using same | Hirofumi Kanda | 2011-06-28 |
| 7885572 | Corona discharge device, photoreceptor charger, and method for making discharge product removing member | Shigeru Nishio, Yuhsuke Ebata | 2011-02-08 |
| 7809310 | Image forming apparatus | — | 2010-10-05 |
| 7530279 | Sampler for sampling charged particles, and apparatus for measuring charge distribution of the charged particles | Hiroaki Masuda, Shuji Matsusaka | 2009-05-12 |
| 7515851 | Electron emitter, charger, and charging method | Hiroyuki Hirakawa, Nobuyoshi Koshida | 2009-04-07 |
| 7477442 | Display apparatus and method for producing the same | Hiroyuki Hirakawa, Nobuyuki Azuma, Yoshinori Mutou | 2009-01-13 |
| 7317285 | Electron emission device having cleaning function | Hiroyuki Hirakawa | 2008-01-08 |
| 7307379 | Electron emitting element and image forming apparatus employing it | Hiroyuki Hirakawa, Nobuyoshi Koshida | 2007-12-11 |
| 7160365 | Ion generating apparatus, air conditioning apparatus, and charging apparatus | — | 2007-01-09 |
| 7129965 | Exposure device and image forming device | Shigeru Nishio, Tetsuya Inui | 2006-10-31 |
| 6873813 | Development method and image formation apparatus | Kazuhiko Furukawa, Hiroyuki Hirakawa, Tetsuro Toyoshima | 2005-03-29 |
| 6858369 | Toner and manufacturing method thereof | Katsumi Adachi, Masamitsu Sakuma, Kiyoshi Toizumi, Taisuke Kamimura, Kenji Mishima | 2005-02-22 |
| 6714225 | Image formation apparatus and image formation method | Yoshinori Mutou, Tetsuro Toyoshima, Nobuyuki Azuma, Yoshinori Nakajima | 2004-03-30 |
| 6681091 | Development method and image formation apparatus | Kazuhiko Furukawa, Hiroyuki Hirakawa, Tetsuro Toyoshima | 2004-01-20 |
| 6596454 | Toner and manufacturing method thereof | Katsumi Adachi, Masamitsu Sakuma, Kiyoshi Toizumi, Taisuke Kamimura, Kenji Mishima | 2003-07-22 |
| 6496210 | Electrophotographic imaging apparatus | Tetsuro Toyoshima, Nobuyuki Azuma, Yoshinori Mutou | 2002-12-17 |
| 6433803 | Exposure apparatus for image formation and image formation method | Yoshinori Mutou, Tetsuro Toyoshima, Nobuyuki Azuma, Yoshinori Nakajima | 2002-08-13 |
| 6417876 | Apparatus and method for forming image with high image resolution from images having various dot densities | Yoshinori Nakajima, Tetsuro Toyoshima, Nobuyuki Azuma, Yoshinori Mutou | 2002-07-09 |
| 6330416 | Blade for a developing device and methods of making the same | Masanori Yamada, Tetsurou Toyoshima, Nobuyuki Azuma | 2001-12-11 |