RI

Ryotaro Irie

HC Hitachi Chemical Company: 2 patents #701 of 1,946Top 40%
Overall (All Time): #2,335,488 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4792516 Photosensitive composition Minoru Toriumi, Hiroshi Shiraishi, Shigeru Koibuchi 1988-12-20
4728594 Photosensitive composition with azide or bisazide compound with oxazolone group Saburo Nonogaki, Michiaki Hashimoto, Takao Iwayanagi 1988-03-01