Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10545448 | Image forming apparatus | Akira Sugiyama | 2020-01-28 |
| 8953982 | Displacement mechanism for secondary transfer unit of an image forming apparatus | Hideshi Izumi, Toshiki Takiguchi | 2015-02-10 |
| 8655239 | Transfer belt unit and image forming apparatus | Fumito Mizoguchi, Toshiki Takiguchi, Hideshi Izumi | 2014-02-18 |
| 8602208 | Belt conveyance device | Shohtaroh Okamoto | 2013-12-10 |
| 8509652 | Image forming apparatus | — | 2013-08-13 |
| 8187026 | Structure of a component mounting portion, and functional unit | — | 2012-05-29 |
| 8095040 | Intermediate transfer-type image forming apparatus with separation/contact mechanism | Norio Tomita, Takahiko Yoshida, Yoshikazu Harada, Yoshiteru Kikuchi, Kenichi Isomi | 2012-01-10 |
| 8010004 | Belt transfer device | Takashi Makiura, Kohichi Yamauchi, Takahiko Yoshida | 2011-08-30 |
| 7860410 | Transfer device including detecting mechanism for detecting replacement belt unit and image forming apparatus using the same | Tomohiko Fujii, Kohichi Yamauchi | 2010-12-28 |
| 7548709 | Transfer unit, transfer method, and image forming apparatus | Masashi Hirai, Kuniaki Nakano, Masanori Yamada, Takahiko Yoshida, Kazuaki Ishikawa +1 more | 2009-06-16 |
| 7257351 | Detaching/attaching mechanism and image forming device | Masashi Hirai, Kohichi Yamauchi, Noritaka Okazaki, Fumio Shimazu | 2007-08-14 |
| 7251436 | Image forming device with movable processing unit | Yasunori Minakuchi, Atsushi Ide, Yoshinobu Tateishi, Kazuhiro Matsuyama, Toshiya Mikita +3 more | 2007-07-31 |
| 7162178 | Transfer device and image forming apparatus | Toshiki Takiguchi, Hirokazu Yamauchi, Hiroyuki Murai, Yoshiaki Masuda, Fumio Shimazu +1 more | 2007-01-09 |
| 7162192 | Transfer belt device and image forming apparatus | Masanori Yamada, Takahiko Yoshida, Masashi Hirai | 2007-01-09 |
| 6957022 | Image forming apparatus | Masashi Hirai, Kohichi Yamauchi, Fumio Shimazu, Yuji Nakagawa | 2005-10-18 |
| 6889027 | Multicolored image forming apparatus for forming multicolored and monochromatic images | Toshio Yamanaka, Masashi Hirai, Kouichi Yamauchi, Fumio Shimazu | 2005-05-03 |
| 6876820 | Image forming apparatus | Masashi Hirai, Kohichi Yamauchi, Fumio Shimazu, Yuji Nakagawa | 2005-04-05 |
| 6647228 | Image forming device | Koichi Nakamura, Koichi Yamauchi, Mitsuyoshi Terada, Tadasu Taniguchi, Hideaki Kadowaki +1 more | 2003-11-11 |
| 6259869 | Image forming apparatus | Takuya Abe, Kiyoshi Toizumi, Fumio Shimazu, Hiromu Yoshimoto, Kouichi Yamauchi +3 more | 2001-07-10 |
| 6233422 | Image forming apparatus having transfer drum with transfer paper charging member | Takuya Abe, Kiyoshi Toizumi, Fumio Shimazu, Hiromu Yoshimoto, Kouichi Yamauchi +3 more | 2001-05-15 |
| 6219498 | Image forming apparatus having improved image transfer characteristics | Atsuyuki Katoh, Masaru Tsuji, Kenji Sugimura, Yoshiya Kinoshita | 2001-04-17 |
| 6169862 | Image forming apparatus with nip time changing device | Takuya Abe, Kiyoshi Toizumi, Fumio Shimazu, Hiromu Yoshimoto, Kouichi Yamauchi +3 more | 2001-01-02 |
| 6118954 | Image forming apparatus having transfer roller with charge-removing and cleaning devices | Takuya Abe, Kiyoshi Toizumi, Fumio Shimazu, Hiromu Yoshimoto, Kouichi Yamauchi +3 more | 2000-09-12 |
| 6081686 | Image forming apparatus having transfer drum with specific construction | Takuya Abe, Kiyoshi Toizumi, Fumio Shimazu, Hiromu Yoshimoto, Kouichi Yamauchi +3 more | 2000-06-27 |
| 6044236 | Image forming apparatus having improved image transfer characteristics | Atsuyuki Katoh, Masaru Tsuji, Kenji Sugimura, Yoshiya Kinoshita | 2000-03-28 |