DS

Daijiro Sumino

Ricoh Company: 1 patents #6,936 of 9,818Top 75%
RC Ricoh Electronic Devices Co.: 1 patents #4 of 18Top 25%
Overall (All Time): #1,832,258 of 4,157,543Top 45%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11223184 Semiconductor laser driver having electronic dimming function without using optical components 2022-01-11
9130341 Semiconductor laser drive apparatus and image forming apparatus Takao Watanabe 2015-09-08