HH

Hiroyuki Hirai

Fujitsu Limited: 84 patents #67 of 24,456Top 1%
FU Fujifilm: 9 patents #988 of 4,519Top 25%
Dai Nippon Printing Co.: 6 patents #392 of 2,222Top 20%
AC Asahi Glass Co.: 5 patents #403 of 2,251Top 20%
XP Xerox International Partners: 3 patents #4 of 9Top 45%
Sumitomo Electric Industries: 2 patents #9,741 of 21,551Top 50%
KT Kabushiki Kaisha Toshiba: 1 patents #13,537 of 21,451Top 65%
DC Dainippon Screen Mfg. Co.: 1 patents #531 of 977Top 55%
SC Sanyo Electric Co.: 1 patents #3,644 of 6,347Top 60%
UM University of Minnesota: 1 patents #1,216 of 2,951Top 45%
BM Bml: 1 patents #13 of 15Top 90%
📍 Sunnyvale, CA: #69 of 14,302 inventorsTop 1%
🗺 California: #1,669 of 386,348 inventorsTop 1%
Overall (All Time): #10,723 of 4,157,543Top 1%
116
Patents All Time

Issued Patents All Time

Showing 51–75 of 116 patents

Patent #TitleCo-InventorsDate
5223387 Color photographic light-sensitive material containing a naphthyl azo dicyano halo phenyl compound Masaaki Tsukase, Kozo Sato 1993-06-29
5206131 Diffusion transfer type silver halide color photosensitive materials Naoto Matsuda, Takeshi Nakamine, Koki Nakamura 1993-04-27
5202225 Silver halide photographic materials with redox releasers containing nucleophilic groups Takeshi Nakamine, Takayuki Ito, Naoto Matsuda, Koki Nakamura 1993-04-13
5192639 Light-sensitive material containing silver halide, reducing agent, polymerizable compound and chromium molybdenum or tungsten compound 1993-03-09
5164277 Light-sensitive material containing silver halide, reducing agent and polymerizable compound Makoto Yamada 1992-11-17
5139919 Heat-developable color photographic materials with combination of electron transfer agent and precursor Toshiki Taguchi, Takeshi Nakamine, Ken Kawata 1992-08-18
5093229 Heat developable light-sensitive material containing an amidine based precursor Yoshiharu Yabuki 1992-03-03
5051349 Heat developable color photosensitive material with saccharide Toshiki Taguchi 1991-09-24
H963 Color light-sensitive material Keizo Furuya, Koki Nakamura 1991-09-03
5032487 Color light-sensitive material Michio Ono, Masuzi Motoki 1991-07-16
5026634 Color light-sensitive material Michio Ono, Nobutaka Ohki, Kouichi Hanaki, Koki Nakamura 1991-06-25
5020200 Apparatus for treating a wafer surface Masahiro Mimasaka 1991-06-04
4980265 Color photosensitive material and process for producing image using same Kozo Sato 1990-12-25
4968598 Heat developable color light-sensitive material Koki Nakamura 1990-11-06
4880725 Color image forming process utilizing substantially water-insoluble basic metal compounds and complexing compounds Haruhiko Iwano 1989-11-14
4880723 Photographic silver halide photosensitive material Yoshiharu Yabuki 1989-11-14
4876171 Silver salt diffusion transfer with complexing compound 1989-10-24
4839272 Heat-developable photosensitive material Hideki Ohmatsu 1989-06-13
4820622 Heat development image forming method 1989-04-11
4801961 Image forming apparatus Hiroshi Hara 1989-01-31
4791048 Color image forming process utilizing substantially water-insoluble basic metal compounds and complexing compounds Yoshiharu Yabuki, Haruhiko Iwano 1988-12-13
4782004 Method for developing a heat-developable photosensitive material comprising a dye providing compounds and an auxiliary developing agent Masashi Takeuchi, Kozo Sato 1988-11-01
4775613 Heat-developable light-sensitive material Hiroshi Hara, Ken Kawata 1988-10-04
4772544 Heat-developable photographic material 1988-09-20
4764458 Heat developable light-sensitive material Hiroshi Hara, Ken Kawata 1988-08-16