HM

Hirokazu Matsubara

HI Hitachi: 12 patents #3,472 of 28,497Top 15%
NK Nippon Hoso Kyokai: 3 patents #100 of 703Top 15%
Overall (All Time): #429,528 of 4,157,543Top 15%
12
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5233265 Photoconductive imaging apparatus Yukio Takasaki, Kazutaka Tsuji, Tatsuo Makishima, Tadaaki Hirai, Sachio Ishioka +17 more 1993-08-03
4980736 Electric conversion device Yukio Takasaki, Kazutaka Tsuji, Tatsuo Makishima, Tadaaki Hirai, Sachio Ishioka +7 more 1990-12-25
4900975 Target of image pickup tube having an amorphous semiconductor laminate Yasuharu Shimomoto, Sachio Ishioka, Yukio Takasaki, Tadaaki Hirai, Kazutaka Tsuji +9 more 1990-02-13
RE33094 Electrophotographic member with alpha-si layers Eiichi Maruyama, Sachio Ishioka, Yoshinori Imamura, Yasuharu Shimomoto, Shinkichi Horigome +1 more 1989-10-17
4829345 Electronic device having light transmission system Sachio Ishioka, Kazutaka Tsuji, Yukio Takasaki, Yasuharu Shimomoto, Tadaaki Hirai 1989-05-09
4672015 Electrophotographic member having multilayered amorphous silicon photosensitive member Eiichi Maruyama, Makoto Fujikura, Toshikazu Shimada 1987-06-09
4433202 Thin film solar cell Eiichi Maruyama, Toshikazu Shimada, Yasuhiro Shiraki, Yoshifumi Katayama, Akitoshi Ishizaka +2 more 1984-02-21
4405879 Photoelectric conversion device and method of producing the same Saburo Ataka, Yoshinori Imamura, Yasuo Tanaka, Eiichi Maruyama 1983-09-20
4380557 Method of production of image pickup device Sachio Ishioka, Yasuharu Shimomoto, Yoshinori Imamura, Saburo Ataka, Yasuo Tanaka +2 more 1983-04-19
4378417 Electrophotographic member with .alpha.-Si layers Eiichi Maruyama, Sachio Ishioka, Yoshinori Imamura, Yasuharu Shimomoto, Shinkichi Horigome +1 more 1983-03-29
4377628 Electrophotographic member with .alpha.-Si and H Sachio Ishioka, Eiichi Maruyama, Yoshinori Imamura, Shinkichi Horigome 1983-03-22
4365013 Electrophotographic member Sachio Ishioka, Eiichi Maruyama, Yoshinori Imamura, Shinkichi Horigome 1982-12-21