YW

Yuuji Wada

Ricoh Company: 38 patents #399 of 9,818Top 5%
SO Sony: 4 patents #8,966 of 25,231Top 40%
HI Hitachi: 2 patents #13,388 of 28,497Top 50%
Overall (All Time): #73,046 of 4,157,543Top 2%
42
Patents All Time

Issued Patents All Time

Showing 1–25 of 42 patents

Patent #TitleCo-InventorsDate
11647170 Image projection device Tomoko Takahashi, Yu YONEDA, Daisuke Tomita, Kunihiko Nishioka, Hideki Kosugi +5 more 2023-05-09
10831132 Transfer device and image forming apparatus incorporating same Takahiro Suzuki, Naoto Kochi, Shinya Tanaka 2020-11-10
10295948 Image forming apparatus Keigo Nakamura, Hirokazu Ishii, Kenji Sugiura, Takehide Mizutani, Atsushi Nagata +2 more 2019-05-21
10281848 Image forming apparatus and image forming method Naoto Kochi, Hiroki Nakamatsu, Kazuki Yogosawa, Takahiro Suzuki, Shinya Tanaka +8 more 2019-05-07
10228639 Image forming apparatus with a support to adjust a rotator and a guide Seiichi Kogure, Naohiro Kumagai, Junpei Fujita, Kazuki Yogosawa, Tatsuya Ohsugi +2 more 2019-03-12
10185255 Image forming apparatus and image forming method for controlling a secondary transfer bias according to recording sheet type Naoto Kochi, Hirokazu Ishii, Seiichi Kogure, Naohiro Kumagai, Kenji Sugiura +6 more 2019-01-22
10152001 Image forming apparatus Naohiro Kumagai, Seiichi Kogure, Junpei Fujita, Kazuki Yogosawa, Kenji Sugiura 2018-12-11
10120304 Belt device including support portions and an adjuster to adjust positions of the support portions Junpei Fujita, Naohiro Kumagai, Seiichi Kogure, Kazuki Yogosawa, Kenji Sugiura 2018-11-06
10101690 Image forming apparatus Kenji Sugiura, Naohiro Kumagai, Seiichi Kogure, Junpei Fujita, Kazuki Yogosawa +1 more 2018-10-16
10073386 Image forming apparatus Naomi Sugimoto, Hirokazu Ishii, Kenji Sugiura, Atsushi Nagata, Takehide Mizutani +3 more 2018-09-11
10067454 Image forming apparatus Atsushi Nagata, Shinya Tanaka, Hirokazu Ishii, Kenji Sugiura, Takehide Mizutani +2 more 2018-09-04
9897943 Belt unit, transfer unit, and image forming apparatus including a pressing member that presses an edge of a belt Junpei Fujita, Naohiro Kumagai, Seiichi Kogure, Kazuki Yogosawa, Kenji Sugiura +1 more 2018-02-20
9835987 Image forming apparatus and transfer bias control Kenji Sugiura, Hiroyoshi Haga, Hirokazu Ishii, Naohiro Kumagai, Seiichi Kogure +5 more 2017-12-05
9817341 Image forming apparatus Tatsuya Ohsugi, Kenji Sugiura, Hirokazu Ishii, Hiroyoshi Haga, Naohiro Kumagai +5 more 2017-11-14
9811046 Image forming apparatus Naohiro Kumagai, Seiichi Kogure, Junpei Fujita, Kazuki Yogosawa, Kenji Sugirua +4 more 2017-11-07
9811036 Belt device and image forming apparatus including same Junpei Fujita, Kenji Sugiura, Hiroyoshi Haga, Seiichi Kogure, Naohiro Kumagai +1 more 2017-11-07
9766575 Image forming apparatus Tatsuya Ohsugi, Kenji Sugiura, Hirokazu Ishii, Hiroyoshi Haga, Takehide Mizutani +5 more 2017-09-19
9740156 Image forming apparatus that adjusts a transfer bias according to surface properties of a transfer target Hiroyoshi Haga, 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
9720364 Image forming apparatus Seiichi Kogure, Naohiro Kumagai, Junpei Fujita, Kazuki Yogosawa, Tatsuya Ohsugi +3 more 2017-08-01
9696662 Cleaning device and image forming apparatus incorporating same Kazuki Yogosawa, Mitsuru Takahashi, Hiroyoshi Haga, Kenji Sugiura, Naohiro Kumagai +5 more 2017-07-04
9690246 Image forming apparatus including contact members disposed side by side at positions opposing a guide unit Seiichi Kogure, Naohiro Kumagai, Junpei Fujita, Kazuki Yogosawa, Tatsuya Ohsugi +2 more 2017-06-27
9645530 Image forming apparatus Naoto Kochi, Kenji Sugiura, Hirokazu Ishii, Hiroyoshi Haga, Takehide Mizutani +4 more 2017-05-09
9632461 Image forming apparatus controlling transfer bias based on temperature and humidity Kenji Sugiura, Toshitaka Yamaguchi, Hiroyoshi Haga, Hirokazu Ishii, Shinya Tanaka +6 more 2017-04-25
9549111 Image capturing apparatus and control program product with speed detection features Masahide Ishino, Hiroaki Adachi, Kensuke Mashita, Mitsuyo Usami 2017-01-17