KU

Kohichi Utsunomiya

Ricoh Company: 28 patents #700 of 9,818Top 8%
Overall (All Time): #138,426 of 4,157,543Top 4%
28
Patents All Time

Issued Patents All Time

Showing 1–25 of 28 patents

Patent #TitleCo-InventorsDate
10795293 Fixing device and image forming apparatus incorporating same Yutaka Ikebuchi 2020-10-06
10345747 Fixing device and image forming apparatus incorporating same Takuya Seshita, Hajime Gotoh, Takahiro Imada, Yutaka Ikebuchi 2019-07-09
10317824 Fixing device and image forming apparatus Kiwako Hiroi, Yuusuke Furuichi 2019-06-11
10248055 Fixing device including a lubricant holder and image forming apparatus Yutaka Ikebuchi, Takuya Seshita, Yasuharu Kawarasaki 2019-04-02
10007213 Fixing device, image forming apparatus, and slide member Yutaka Ikebuchi, Hideo Nagafuji, Arinobu Yoshiura, Motoyoshi Yamano 2018-06-26
9897950 Fixing device and image forming apparatus Arinobu Yoshiura, Hideo Nagafuji, Yutaka Ikebuchi, Motoyoshi Yamano 2018-02-20
9869952 Fixing device and image forming apparatus including a friction reducer including a lubricant Hideo Nagafuji, Arinobu Yoshiura, Yutaka Ikebuchi, Motoyoshi Yamano 2018-01-16
9817345 Fixing device, image forming apparatus, and method of controlling fixing device Motoyoshi Yamano, Tetsuo Tokuda, Yoshikuni Sasaki, Hiroshi Ono, Hironori Yamaoka +3 more 2017-11-14
9650219 Paper conveying device and image forming device Arinobu Yoshiura, Hideo Nagafuji, Yuji Arai, Kiho Sai, Shohei Saito +2 more 2017-05-16
9599940 Fixing device with nip forming member having a high thermal-conductive layer with a low thermal conductive portion Motoyoshi Yamano, Hiromasa Takagi, Kenji Ishii, Takayuki Seki, Keitaro Shoji +6 more 2017-03-21
9494900 Fixing device and image forming apparatus including a nip-forming-member supported by at least two plates joined together Hideo Nagafuji, Yuji Arai, Arinobu Yoshiura, Qifeng Cui, Shohei Saito +2 more 2016-11-15
9477182 Fixing device of an image forming apparatus that utilizes edge detections for heat shield positional determinations Yutaka Ikebuchi, Hideo Nagafuji, Yuji Arai, Arinobu Yoshiura, Kiho Sai +2 more 2016-10-25
9429888 Fixing device and image forming apparatus which utilizes a nip supporting member to support a nip forming member Hideo Nagafuji, Yuji Arai, Arinobu Yoshiura, Kiho Sai, Shohei Saito +2 more 2016-08-30
9400482 Paper conveyance device, fixing device, and image forming apparatus Shohei Saito, Hideo Nagafuji, Yuji Arai, Arinobu Yoshiura, Qifeng Cui +9 more 2016-07-26
9400464 Fixing device and image forming apparatus Hideo Nagafuji, Yuji Arai, Arinobu Yoshiura, Shohei Saito, Qifeng Cui +2 more 2016-07-26
9354572 Fixing device and image forming apparatus Arinobu Yoshiura, Hideo Nagafuji, Yuji Arai, Yutaka Ikebuchi, Motoyoshi Yamano +2 more 2016-05-31
9316977 Fixing device and image forming apparatus Motoyoshi Yamano, Tetsuo Tokuda, Takashi Sakamaki, Naoto Suzuki, Satoshi Ueno +1 more 2016-04-19
9298146 Fixing device and image forming apparatus Arinobu Yoshiura, Hideo Nagafuji, Yuji Arai, Shohei Saito, Qifeng Cui +5 more 2016-03-29
9207594 Fixing device and image forming apparatus Tetsuo Tokuda, Naoto Suzuki 2015-12-08
9152099 Fixing device, image forming apparatus, and fixing method Satoshi Ueno, Tetsuo Tokuda, Naoto Suzuki, Takashi Sakamaki, Fumihiro Hirose +1 more 2015-10-06
9109633 Driving force transmission mechanism and image forming apparatus Hideo Yoshizawa, Kiyonori Tsuda, Takuzi Yoneda, Yutaka Takahashi, Emi Kita +1 more 2015-08-18
8923726 Image forming apparatus incorporating developing device with first and second seals Kiyonori Tsuda, Hideo Yoshizawa, Takuzi Yoneda, Yutaka Takahashi, Emi Kita +1 more 2014-12-30
8843015 Imaging device, image forming apparatus, and process cartridge Kiyonori Tsuda, Hideo Yoshizawa, Takuzi Yoneda, Emi Kita, Yutaka Takahashi +1 more 2014-09-23
8843019 Development device and image forming apparatus incorporating same Hideo Yoshizawa, Kiyonori Tsuda, Takuzi Yoneda, Emi Kita, Yutaka Takahashi +1 more 2014-09-23
8295737 Developing device and image forming apparatus using same Kiyonori Tsuda, Junichi Terai, Keiko Matsumoto, Kentaroh Tomita 2012-10-23