YT

Yoshihiko Tsumekawa

Canon: 10 patents #6,241 of 19,416Top 35%
Overall (All Time): #507,592 of 4,157,543Top 15%
10
Patents All Time

Issued Patents All Time

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDate
10323825 Light guide, illumination device, sensor unit, reading apparatus, image forming apparatus, and paper sheet distinguishing apparatus Hidehisa Takahashi 2019-06-18
10136019 Illumination apparatus, sensor unit, and reading apparatus Hidemasa Yoshida, Akihito Takeshita 2018-11-20
10091382 Illumination apparatus and sensor unit Hidemasa Yoshida, Akihito Takeshita 2018-10-02
9838559 Illumination apparatus, image sensor unit and image reading apparatus Hidemasa Yoshida 2017-12-05
9638855 Illumination apparatus and image sensor unit including diffusing patterns with differing intervals Hidemasa Yoshida 2017-05-02
9516186 Image sensor unit, paper sheet distinguishing apparatus, image reading apparatus, and image forming apparatus Ryoki Matsui 2016-12-06
9478090 Image sensor unit, image reading apparatus, and paper sheet distinguishing apparatus Shuuichi Shimoda, Junya Kinoshita, Yoshio Kureishi, Ryoki Matsui, Hidemasa Yoshida +4 more 2016-10-25
9158062 Illumination apparatus, image sensor unit, and image reading apparatus Hidemasa Yoshida 2015-10-13
8885231 Illumination apparatus, image sensor unit, image reading apparatus, and image forming apparatus 2014-11-11
8767274 Image sensor unit, image reader, and image forming apparatus Kenji Nagata 2014-07-01