JF

Junpei Fujita

Ricoh Company: 64 patents #117 of 9,818Top 2%
Overall (All Time): #34,838 of 4,157,543Top 1%
64
Patents All Time

Issued Patents All Time

Showing 26–50 of 64 patents

Patent #TitleCo-InventorsDate
9454126 Cleaning device and image forming apparatus including same Yusuke Mitani, Kenji Sugiura, Yuuji Wada, Kazuki Yogosawa, Seiichi Kogure +1 more 2016-09-27
9423749 Image forming apparatus with a fulcrum that pivotally supports an image bearer and detector Naohiro Kumagai, Seiichi Kogure, Kazuki Yogosawa, Kenji Sugiura, Yuuji Wada +1 more 2016-08-23
9423724 Pressing device, in an image forming apparatus that includes an adjuster connected to two lateral plates Junichi Ichikawa, Naohiro Kumagai, Seiichi Kogure, Kazuki Yogosawa, Kenji Sugiura +2 more 2016-08-23
9405271 Cleaning device and image forming apparatus incorporating same Kazuki Yogosawa, Kenji Sugiura, Naohiro Kumagai, Seiichi Kogure, Yuuji Wada +1 more 2016-08-02
9405269 Image forming apparatus with a guide member for a transfer belt Kenji Sugiura, Seiichi Kogure, Junichi Ichikawa, Kazuki Yogosawa 2016-08-02
9395658 Image forming apparatus Yuuji Wada, Naohiro Kumagai, Seiichi Kogure, Kazuki Yogosawa, Kenji Sugiura +4 more 2016-07-19
9383691 Image forming apparatus including a transfer bias controller Yuuji Wada, Kenji Sugiura, Naohiro Kumagai, Seiichi Kogure, Yusuke Mitani +1 more 2016-07-05
9360807 Image forming apparatus Seiichi Kogure, Naohiro Kumagai, Kazuki Yogosawa, Kenji Sugiura, Yuuji Wada +1 more 2016-06-07
9354589 Cleaner, image forming apparatus using the cleaner, and voltage setting device Kenji Sugiura, Seiichi Kogure, Junichi Ichikawa, Kazuki Yogosawa 2016-05-31
9329533 Cleaning device and image forming apparatus including same Yusuke Mitani, Kenji Sugiura, Yuuji Wada, Kazuki Yogosawa, Seiichi Kogure +1 more 2016-05-03
9323170 Image forming apparatus with a controller to set transfer bias Kenji Sengoku, Hiromi Ogiyama, Hiroyoshi Haga, Tomokazu Takeuchi, Yasunobu Shimizu 2016-04-26
9256165 Transfer device and image forming apparatus incorporating same Yasufumi Takahashi, Osamu Ichihashi, Yuji Kato 2016-02-09
9256167 Image forming apparatus Atsushi Nagata, Kenji Sugiura, Naohiro Kumagai, Seiichi Kogure, Yuuji Wada +2 more 2016-02-09
9248638 Cleaning device and image forming apparatus incorporating same Kazuki Yogosawa, Kenji Sugiura, Naohiro Kumagai, Seiichi Kogure, Yuuji Wada +1 more 2016-02-02
9235164 Transfer device and image forming apparatus including same Junichi Ichikawa, Seiichi Kogure, Kazuki Yogosawa, Kenji Sugiura 2016-01-12
9213272 Image forming apparatus including a holding member to hold a roller relative to a frame Osamu Ichihashi, Yasufumi Takahashi 2015-12-15
9213271 Cleaner, and image forming apparatus using the cleaner Yuuji Wada, Kenji Sugiura, Naohiro Kumagai, Seiichi Kogure, Yusuke Mitani +1 more 2015-12-15
9182698 Method of transferring image and image transferring system and image forming apparatus with same Junichi Ichikawa, Kenji Sengoku, Shinya Tanaka, Kunio Hasegawa 2015-11-10
9141039 Image forming apparatus including a cam member to separate a transfer member Yuji Kato, Ryuuichi Mimbu, Yasufumi Takahashi, Kenji Sengoku, Osamu Ichihashi 2015-09-22
9063472 Image forming apparatus and belt tensioning unit Kenji Sengoku, Ryuuichi Mimbu, Osamu Ichihashi 2015-06-23
9057991 Image forming apparatus Yasunobu Shimizu, Hiroyoshi Haga, Tomokazu Takeuchi, Hiromi Ogiyama, Kenji Sengoku 2015-06-16
9037022 Image forming apparatus, image forming system, and transfer method Tomokazu Takeuchi, Hiroyoshi Haga, Yasunobu Shimizu, Hiromi Ogiyama, Kenji Sengoku 2015-05-19
9031436 Image forming apparatus Yasunobu Shimizu, Hiroyoshi Haga, Tomokazu Takeuchi, Hiromi Ogiyama, Kenji Sengoku 2015-05-12
8948644 Power supply module and image forming apparatus including same Tomokazu Takeuchi, Hiroyoshi Haga, Hiromi Ogiyama, Yasunobu Shimizu, Kenji Sengoku 2015-02-03
8929786 Image forming apparatus, system, and method using a superimposed voltage signal and a direct voltage signal Tomokazu Takeuchi, Hiroyoshi Haga, Yasunobu Shimizu, Hiromi Ogiyama, Kenji Sengoku +1 more 2015-01-06