NK

Naohiro Kumagai

Ricoh Company: 71 patents #85 of 9,818Top 1%
AC Asahi Glass Co.: 4 patents #490 of 2,251Top 25%
Overall (All Time): #25,682 of 4,157,543Top 1%
75
Patents All Time

Issued Patents All Time

Showing 26–50 of 75 patents

Patent #TitleCo-InventorsDate
9423749 Image forming apparatus with a fulcrum that pivotally supports an image bearer and detector Seiichi Kogure, Junpei Fujita, 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, Seiichi Kogure, Junpei Fujita, Kazuki Yogosawa, Kenji Sugiura +2 more 2016-08-23
9405271 Cleaning device and image forming apparatus incorporating same Kazuki Yogosawa, Kenji Sugiura, Seiichi Kogure, Junpei Fujita, Yuuji Wada +1 more 2016-08-02
9395658 Image forming apparatus Yuuji Wada, Seiichi Kogure, Junpei Fujita, Kazuki Yogosawa, Kenji Sugiura +4 more 2016-07-19
9383691 Image forming apparatus including a transfer bias controller Yuuji Wada, Kenji Sugiura, Seiichi Kogure, Junpei Fujita, Yusuke Mitani +1 more 2016-07-05
9360807 Image forming apparatus Seiichi Kogure, Junpei Fujita, Kazuki Yogosawa, Kenji Sugiura, Yuuji Wada +1 more 2016-06-07
9329533 Cleaning device and image forming apparatus including same Yusuke Mitani, Kenji Sugiura, Yuuji Wada, Kazuki Yogosawa, Junpei Fujita +1 more 2016-05-03
9256190 Lubricant supplying device, image forming apparatus, and process cartridge Satoshi Hatori, Ryohta Gotoh, Akira Fujimori, Kaoru Yoshino, Hideyasu Seki +4 more 2016-02-09
9256167 Image forming apparatus Atsushi Nagata, Kenji Sugiura, Seiichi Kogure, Junpei Fujita, Yuuji Wada +2 more 2016-02-09
9248638 Cleaning device and image forming apparatus incorporating same Kazuki Yogosawa, Kenji Sugiura, Seiichi Kogure, Junpei Fujita, Yuuji Wada +1 more 2016-02-02
9213271 Cleaner, and image forming apparatus using the cleaner Yuuji Wada, Kenji Sugiura, Seiichi Kogure, Junpei Fujita, Yusuke Mitani +1 more 2015-12-15
9207625 Lubricant supply device, process unit, image forming apparatus, and process unit manufacturing method Ryohta Gotoh, Kaoru Yoshino, Satoshi Hatori, Hiromichi Ninomiya, Nobuyuki Taguchi +5 more 2015-12-08
9176457 Image forming apparatus and waste toner conveying device incorporated in same Kaoru Yoshino, Satoshi Hatori, Akira Fujimori, Hideyasu Seki, Ryohta Gotoh 2015-11-03
9128452 Lubricant supply system, image forming apparatus, and process cartridge Satoshi Hatori, Kenji Honjoh, Ryohta Gotoh, Akira Fujimori, Kaoru Yoshino +6 more 2015-09-08
9104171 Detachable unit and image forming apparatus incorporating same Yuta Azeyanagi, Hiromichi Ninomiya, Satoshi Hatori, Nobuyuki Taguchi, Kaoru Yoshino +3 more 2015-08-11
9081347 Lubricant supplying device, image forming apparatus, and process cartridge Akira Fujimori, Satoshi Hatori, Kaoru Yoshino, Hideyasu Seki, Ryohta Gotoh +6 more 2015-07-14
9068693 Lubricant supplying device, image forming apparatus, and process cartridge Satoshi Hatori, Ryohta Gotoh, Akira Fujimori, Kaoru Yoshino, Hideyasu Seki +4 more 2015-06-30
9063500 Lubricant applicator, image forming apparatus, and process cartridge Ryohta Gotoh, Satoshi Hatori, Kaoru Yoshino, Akira Fujimori, Hideyasu Seki 2015-06-23
9052669 Lubricant applicator, image forming apparatus, and process cartridge Daisuke Tomita, Takeshi Shintani, Norio Kudo, Kenji Honjoh, Satoshi Hatori +5 more 2015-06-09
9008546 Image carrier, process cartridge, and image forming apparatus Nobuyuki Taguchi, Satoshi Hatori, Kaoru Yoshino, Hiromichi Ninomiya, Yuta Azeyanagi +3 more 2015-04-14
8909122 Lubricant supplying device, image forming apparatus, and process cartridge Ryohta Gotoh, Satoshi Hatori, Akira Fujimori, Kaoru Yoshino, Hideyasu Seki 2014-12-09
8855507 Lubricant supplying device, and image forming apparatus Hideyasu Seki, Satoshi Hatori, Kaoru Yoshino, Akira Fujimori, Ryohta Gotoh +4 more 2014-10-07
8642668 Polymer-dispersed polyol and process for producing flexible polyurethane foam Takayuki Sasaki, Yasuyuki Sasao, Chitoshi Suzuki, Shigeru Ikai 2014-02-04
8620199 Cleaning blade, cleaning device, process cartridge, image forming apparatus, and holder member 2013-12-31
8487015 Flexible polyurethane foam and process for its production Takayuki Sasaki, Daisuke Kaku, Hideo Sakurai, Takashi Ito 2013-07-16