YH

Yutaka Hirai

Canon: 80 patents #233 of 19,416Top 2%
MI Mitsui Toatsu Chemicals, Incorporated: 3 patents #456 of 1,543Top 30%
Overall (All Time): #21,246 of 4,157,543Top 1%
83
Patents All Time

Issued Patents All Time

Showing 76–83 of 83 patents

Patent #TitleCo-InventorsDate
4451547 Electrophotographic .alpha.-Si(H) member and process for production thereof Toshiyuki Komatsu, Katsumi Nakagawa, Teruo Misumi, Tadaji Fukuda 1984-05-29
4405857 Solid-state photoelectric converter Katsunori Hatanaka, Naoki Ayata, Shunichi Uzawa 1983-09-20
4397933 Hydrogenated amorphous silicon photoconductive layer Masao Sugata, Masaki Fukaya, Takashi Nakagiri, Takaaki Yamagata 1983-08-09
4390791 Solid-state photoelectric transducer Katsunori Hatanaka, Shunichi Uzawa, Naoki Ayata 1983-06-28
4369372 Photo electro transducer device Seishiro Yoshioka, Tadaji Fukuda, Masaki Fukaya, Takashi Nakagiri 1983-01-18
4299766 Process for preparing alicyclic isocyanates Ryuichi Yamamoto, Akinobu Takagi, Zyunzi Tashima 1981-11-10
4265991 Electrophotographic photosensitive member and process for production thereof Toshiyuki Komatsu, Katsumi Nakagawa, Teruo Misumi, Tadaji Fukuda 1981-05-05
4186269 Process for producing an aromatic urethane Katsuharu Miyate, Makoto Aiga 1980-01-29