Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8929774 | Belt unit and image forming apparatus employing same | Yohhei Watanabe, Yuji Kato, Yoshihisa Watanabe, Hajime Teraji, Arinobu Yoshiura | 2015-01-06 |
| 8583022 | Lubricant coating device and image forming apparatus incorporating the lubricant coating device | Yohhei Watanabe, Hajime Teraji, Yoshihisa Watanabe, Arinobu Yoshiura | 2013-11-12 |
| 8315545 | Image forming apparatus utilizing both a transfer belt and a direct transfer member | Kazuhisa Sudo, Mitsuru Takahashi, Kazuosa Kuma, Takeshi Fukao, Shinichi Kawahara | 2012-11-20 |
| 8249468 | Image forming apparatus | Kazuosa Kuma, Shinichi Kawahara, Mitsuru Takahashi, Takeshi Fukao, Kazuhisa Sudo | 2012-08-21 |
| 8219000 | Image forming apparatus capable of effectively performing a maintenance operation | Kazuosa Kuma, Nobuto Yokokawa, Mitsuru Takahashi, Kazuchika Saeki, Takeshi Fukao | 2012-07-10 |
| 8139968 | Image forming apparatus | Kazuosa Kuma, Takeshi Fukao, Yoshiharu Kishi | 2012-03-20 |
| 7933546 | Lubricant applying device and image forming apparatus | Takeshi Fukao, Mitsuru Takahashi, Kazuchika Saeki, Kazuosa Kuma, Nobuto Yokokawa | 2011-04-26 |
| 7899386 | Image forming apparatus and guide therefor capable of reducing toner scattered on recording medium | Kazuchika Saeki, Mitsuru Takahashi, Kazuosa Kuma, Takeshi Fukao, Yoshiharu Kishi | 2011-03-01 |
| 7885588 | Transfer assembly and image forming apparatus including same | Kazuosa Kuma, Takeshi Fukao, Yoshiharu Kishi | 2011-02-08 |
| 7848692 | Neutralization unit and image forming apparatus having a neutralization unit for removing electric charge | Kazuchika Saeki, Mitsuru Takahashi, Takeshi Fukao, Yoshiharu Kishi, Kazuosa Kuma | 2010-12-07 |
| 7627268 | Image forming apparatus capable of providing a stable belt movement in a belt unit | Mitsuru Takahashi, Kazuchika Saeki, Kazuosa Kuma, Nobuto Yokokawa, Takeshi Fukao | 2009-12-01 |
| 7609998 | Transfer unit and image forming apparatus | Mitsuru Takahashi, Kazuchika Saeki, Nobuto Yokokawa, Kazuosa Kuma, Takeshi Fukao | 2009-10-27 |
| 7522850 | Image forming apparatus, process cartridge, developing unit, and image forming method | Kazuhito Watanabe, Satoshi Narumi, Shinji Tamaki, Satoshi Hatori, Haruji Mizuishi +2 more | 2009-04-21 |
| 7509073 | Image forming apparatus and belt unit | Mitsuru Takahashi, Kazuchika Saeki, Kazuosa Kuma, Takeshi Fukao, Yoshiharu Kishi | 2009-03-24 |
| 7499665 | Belt device including an annular belt, and an image forming apparatus for detection of rotational angular speed or rotational angular displacement | Kazuosa Kuma, Mitsuru Takahashi, Kazuchika Saeki, Takeshi Fukao, Yoshiharu Kishi | 2009-03-03 |
| 7493061 | Process cartridge including at least one replaceable member and image forming apparatus | Satoshi Hatori, Kazuhito Watanabe, Satoshi Narumi, Shinji Tamaki, Haruji Mizuishi +1 more | 2009-02-17 |
| 7306779 | Lithium-cobalt composite oxide, process for its production, positive electrode for lithium secondary cell employing it, and lithium secondary cell | Manabu Suhara, Kazuo Sunahara, Naoshi Saitoh | 2007-12-11 |
| 7302208 | Unit supporting device and image forming apparatus | Masaaki Tsuda | 2007-11-27 |
| 7274897 | Image forming method and apparatus with a transfer belt | — | 2007-09-25 |
| 7158730 | Image forming apparatus, process cartridge, developing unit, and image forming method | Kazuhito Watanabe, Satoshi Narumi, Shinji Tamaki, Satoshi Hatori, Haruji Mizuishi +2 more | 2007-01-02 |
| 6598952 | Liquid jet recording head having controller for controlling temperature distribution | Hiroyuki Ishinaga, Masami Ikeda, Ryoichi Koizumi, Asao Saito, Kenjiro Watanabe +5 more | 2003-07-29 |
| 6505907 | Recording apparatus having abnormality determination based on temperature and average ejection duty cycle | Hiroyuki Ishinaga, Masami Ikeda, Ryoichi Koizumi, Asao Saito, Kenjiro Watanabe +5 more | 2003-01-14 |
| 6234599 | Substrate having a built-in temperature detecting element, and ink jet apparatus having the same | Hiroyuki Ishinaga, Masami Ikeda, Ryoichi Koizumi, Asao Saito, Kenjiro Watanabe +5 more | 2001-05-22 |
| 5950062 | Toner sorting device for separating reusable toner from used toner and image forming apparatus using the same device | Masasumi Yahata, Shunji Katoh, Yuji Kitajima, Satoshi Takano, Shin-ichi Kawahara +1 more | 1999-09-07 |
| 5175565 | Ink jet substrate including plural temperature sensors and heaters | Hiroyuki Ishinaga, Masami Ikeda, Ryoichi Koizumi, Asao Saito, Kenjiro Watanabe +5 more | 1992-12-29 |