QC

Qifeng Cui

Ricoh Company: 5 patents #3,664 of 9,818Top 40%
YU Yanshan University: 1 patents #86 of 296Top 30%
Overall (All Time): #811,684 of 4,157,543Top 20%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
11791568 Bi-directional flat plate foldable unit and bi-directional flat plate foldable antenna mechanism Yundou Xu, Bo CHEN, Sicheng Lu, Ming Li, Luyao Guo +3 more 2023-10-17
9599940 Fixing device with nip forming member having a high thermal-conductive layer with a low thermal conductive portion Motoyoshi Yamano, Kohichi Utsunomiya, Hiromasa Takagi, Kenji Ishii, Takayuki Seki +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 Kohichi Utsunomiya, Hideo Nagafuji, Yuji Arai, Arinobu Yoshiura, Shohei Saito +2 more 2016-11-15
9400464 Fixing device and image forming apparatus Kohichi Utsunomiya, Hideo Nagafuji, Yuji Arai, Arinobu Yoshiura, Shohei Saito +2 more 2016-07-26
9400482 Paper conveyance device, fixing device, and image forming apparatus Shohei Saito, Hideo Nagafuji, Yuji Arai, Arinobu Yoshiura, Kohichi Utsunomiya +9 more 2016-07-26
9298146 Fixing device and image forming apparatus Arinobu Yoshiura, Hideo Nagafuji, Yuji Arai, Kohichi Utsunomiya, Shohei Saito +5 more 2016-03-29