SS

Shigeru Shirai

Canon: 63 patents #420 of 19,416Top 3%
Sumitomo Electric Industries: 7 patents #3,987 of 21,551Top 20%
PA Panasonic: 5 patents #5,165 of 21,108Top 25%
KT Kabushiki Kaisha Toshiba: 1 patents #13,537 of 21,451Top 65%
Overall (All Time): #23,938 of 4,157,543Top 1%
78
Patents All Time

Issued Patents All Time

Showing 76–78 of 78 patents

Patent #TitleCo-InventorsDate
4394425 Photoconductive member with .alpha.-Si(C) barrier layer Isamu Shimizu, Eiichi Inoue 1983-07-19
4359512 Layered photoconductive member having barrier of silicon and halogen Tadaji Fukuda, Junichiro Kanbe 1982-11-16
4359514 Photoconductive member having barrier and depletion layers Isamu Shimizu, Eiichi Inoue 1982-11-16