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Yukihisa Yokoyama

Ricoh Company: 8 patents #2,692 of 9,818Top 30%
Overall (All Time): #626,872 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
11422329 Imaging optical system, imaging apparatus, stereo camera, distance measuring apparatus, and mobile object 2022-08-23
10012830 Optical scanning device and image forming apparatus Naoki Miyatake 2018-07-03
9851559 Optical scanning unit and image forming apparatus Yukio Itami, Yoshinori Hayashi, Naoki Miyatake 2017-12-26
9323171 Optical scanning device including a rotating polygon mirror and image forming apparatus incorporating same Yukio Itami, Naoki Miyatake 2016-04-26
9304315 Optical scanning unit and image forming apparatus Yukio Itami, Yoshinori Hayashi, Naoki Miyatake 2016-04-05
9279979 Optical scanning device and image forming apparatus 2016-03-08
9069174 Optical scanning unit and image forming apparatus Yukio Itami, Yoshinori Hayashi, Naoki Miyatake 2015-06-30
9019333 Optical scanning apparatus and image forming apparatus utilizing a rotational polygon mirror Yukio Itami, Yoshinori Hayashi, Naoki Miyatake, Naoto Watanabe 2015-04-28