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Yasuko Yoshikawa

Ricoh Company: 2 patents #5,693 of 9,818Top 60%
Overall (All Time): #1,989,769 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
9817350 Positional deviation correction pattern, method of forming positional deviation correction pattern, and image forming apparatus Junichi Mizawa, Masato Mukai, Toru Ohmine, Ichiro Komuro, Shuuichi Endoh +1 more 2017-11-14
9753408 Image forming apparatus with controller to reduce attachment of development agent to transfer roller Junichi Mizawa, Ichiro Komuro, Shuuichi Endoh, Yohsuke Saitoh, Toru Ohmine +2 more 2017-09-05