HH

Hiroyoshi Haga

Ricoh Company: 10 patents #30 of 1,810Top 2%
Overall (2017): #7,472 of 506,227Top 2%
10
Patents 2017

Issued Patents 2017

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDate
9835987 Image forming apparatus and transfer bias control Kenji Sugiura, Hirokazu Ishii, Naohiro Kumagai, Seiichi Kogure, Junpei Fujita +5 more 2017-12-05
9817341 Image forming apparatus Tatsuya Ohsugi, Kenji Sugiura, Hirokazu Ishii, Naohiro Kumagai, Seiichi Kogure +5 more 2017-11-14
9811036 Belt device and image forming apparatus including same Junpei Fujita, Kenji Sugiura, Yuuji Wada, Seiichi Kogure, Naohiro Kumagai +1 more 2017-11-07
9811046 Image forming apparatus Yuuji Wada, Naohiro Kumagai, Seiichi Kogure, Junpei Fujita, Kazuki Yogosawa +4 more 2017-11-07
9766575 Image forming apparatus Tatsuya Ohsugi, Kenji Sugiura, Hirokazu Ishii, Yuuji Wada, Takehide Mizutani +5 more 2017-09-19
9740156 Image forming apparatus that adjusts a transfer bias according to surface properties of a transfer target Yuuji Wada, Naohiro Kumagai, Seiichi Kogure, Junpei Fujita, Kazuki Yogosawa +4 more 2017-08-22
9720355 Image forming apparatus Tatsuya Ohsugi, Kenji Sugiura, Jyunya Sakuraba, Hirokazu Ishii, Toshitaka Yamaguchi +7 more 2017-08-01
9696662 Cleaning device and image forming apparatus incorporating same Kazuki Yogosawa, Mitsuru Takahashi, Kenji Sugiura, Naohiro Kumagai, Seiichi Kogure +5 more 2017-07-04
9645530 Image forming apparatus Naoto Kochi, Kenji Sugiura, Hirokazu Ishii, Yuuji Wada, Takehide Mizutani +4 more 2017-05-09
9632461 Image forming apparatus controlling transfer bias based on temperature and humidity Kenji Sugiura, Toshitaka Yamaguchi, Hirokazu Ishii, Shinya Tanaka, Takehide Mizutani +6 more 2017-04-25