YK

Yasuo Katsuya

HC Hitachi Chemical Company: 4 patents #392 of 1,946Top 25%
HI Hitachi: 2 patents #13,388 of 28,497Top 50%
ET Ekc Technology: 1 patents #41 of 87Top 50%
Overall (All Time): #868,234 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
7718590 Method to remove resist, etch residue, and copper oxide from substrates having copper and low-k dielectric material Tomoko Suzuki, Toshitaka Hiraga, Chris Reid 2010-05-18
5604063 Composition for charge transport layer and electrophotographic member using same Keiichi Endo, Seiji Miyaoka, Kouji Ohkoshi, Susumu Kaneko, Akira Kageyama +1 more 1997-02-18
5233089 Enamine derivatives Takayuki Akimoto, Yoshii Morishita, Yasushi Shinbo, Akira Kageyama, Shigeru Hayashida 1993-08-03
5215842 Photosensitive element for electrophotography Sukekazu Aratani, Shigeo Suzuki, Akira Hosoya, Katuo Sugawara, Toshiro Saito +3 more 1993-06-01
4954406 Electrophotographic plate including an undercoating layer having a smooth surface Keiichi Endo, Yasushi Shinbo, Akira Kageyama, Chihiro Kato, Masato Fukasawa +1 more 1990-09-04
4734347 Electrophotographic plate having a protective layer of a fluorine-containing copolymer Keiichi Endo, Akira Kageyama, Yasuki Mori 1988-03-29