Issued Patents All Time
Showing 26–50 of 51 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7577379 | Toner container, toner supply device and image forming apparatus | Emi Kita, Takeroh Kurenuma, Kiyonori Tsuda, Masayuki Yamane, Nobuyuki Taguchi +5 more | 2009-08-18 |
| D597129 | Process cartridge for image forming apparatus | Yoshihiro Kawakami, Yoshiyuki Shimizu, Tomohiro Kubota, Koji Kato, Hirobumi Ooyoshi +1 more | 2009-07-28 |
| D590012 | Process cartridge for image forming apparatus | Yoshihiro Kawakami, Yoshiyuki Shimizu, Tomohiro Kubota, Koji Kato, Hirobumi Ooyoshi +1 more | 2009-04-07 |
| D590011 | Process cartridge for image forming apparatus | Yoshihiro Kawakami, Yoshiyuki Shimizu, Tomohiro Kubota, Koji Kato, Hirobumi Ooyoshi +1 more | 2009-04-07 |
| D580968 | Process cartridge for image forming apparatus | Yoshihiro Kawakami, Yoshiyuki Shimizu, Tomohiro Kubota, Koji Kato, Hirobumi Ooyoshi +1 more | 2008-11-18 |
| 7424263 | Toner recovery belt conveyor, process cartridge, and image forming apparatus using the same | Yoshiyuki Shimizu, Yoshihiro Kawakami, Tomohiro Kubota, Hirobumi Ooyoshi, Tomofumi Yoshida +1 more | 2008-09-09 |
| 7214461 | Toner for electrophotography, developer using the same, image-forming process cartridge using the same, image-forming apparatus using the same and image-forming process using the same | Hiroshi Yamashita | 2007-05-08 |
| 7184691 | Toner container, toner supply device and image forming apparatus | Emi Kita, Takeroh Kurenuma, Kiyonori Tsuda, Masayuki Yamane, Nobuyuki Taguchi +5 more | 2007-02-27 |
| 7110710 | Toner for electrophotography, developer using the same, image-forming process cartridge using the same, image-forming apparatus using the same and image-forming process using the same | Hiroshi Yamashita | 2006-09-19 |
| 7027761 | Developing device and an image forming apparatus including the same | Kyohta Koetsuka, Tsuyoshi Imamura, Sumio Kamoi, Noriyuki Kamiya, Kenji Narita +1 more | 2006-04-11 |
| 6898383 | Image forming apparatus | Mayumi Ohori, Masaru Tanaka, Haruji Mizuishi, Hiroyuki Ohkaji, Hiroshi Mizusawa +3 more | 2005-05-24 |
| 6771918 | Developing device and image forming device | — | 2004-08-03 |
| 6665511 | Developing device and image forming apparatus including the same | Nobutaka Takeuchi | 2003-12-16 |
| 6628903 | Image forming apparatus having a sensor for sensing an amount of reflected light from both a photoconductive element and a paper | Mayumi Ohori, Masaru Tanaka, Haruji Mizuishi, Hiroyuki Ohkaji, Hiroshi Mizusawa +3 more | 2003-09-30 |
| 6266501 | Image-forming apparatus having a seal for a developer and a method for detecting a removal of the seal | Haruji Mizuishi, Masaru Tanaka, Ken Amemiya, Toshitaka Yamaguchi, Hideki Zemba +3 more | 2001-07-24 |
| 6148161 | Image forming apparatus with improved toner density control | Noriyuki Usui, Ken Amemiya, Haruji Mizuishi, Mayumi Ohori, Masaru Tanaka +3 more | 2000-11-14 |
| 6144811 | Image forming apparatus having a sensor for sensing an amount of reflected light from both a photoconductive element and a paper | Mayumi Ohori, Masaru Tanaka, Haruji Mizuishi, Hiroyuki Ohkaji, Hiroshi Mizusawa +3 more | 2000-11-07 |
| 6144822 | Image forming apparatus having detachable transfer roller and discharge device | Toshitaka Yamaguchi, Masaru Tanaka, Hiroshi Mizusawa, Ken Amemiya, Haruji Mizuishi +3 more | 2000-11-07 |
| 6128449 | Image forming apparatus and method for controlling charging and developing bias voltage | Hideki Zenba, Masaru Tanaka, Haruji Mizuishi, Hiroyuki Okaji, Hiroshi Mizusawa +2 more | 2000-10-03 |
| 5915143 | Image forming apparatus and method for automatically adjusting toner density in response to humidity variations | Shigeru Watanabe, Masaru Tanaka, Haruji Mizuishi, Hiroshi Yoshinaga, Toshitaka Yamaguchi +3 more | 1999-06-22 |
| 5887224 | Image forming device with improved mixing of circulated developer with replensihed toner | Haruji Mizuishi, Masaru Tanaka, Shigeru Watanabe, Toshitaka Yamaguchi, Takeo Suda +3 more | 1999-03-23 |
| D406162 | Toner bottle | — | 1999-02-23 |
| 5828935 | Image forming apparatus, toner supply unit, and toner bottle attached thereto | Noboru Kusunose, Shigeru Yoshiki | 1998-10-27 |
| 5765079 | Toner bottle | Shigeru Yoshiki, Noboru Kusunose, Hideo Yoshizawa | 1998-06-09 |
| 5734953 | Detachable toner supply and processing assembly for an image forming apparatus and having a shutter mechanism for toner flow control | — | 1998-03-31 |