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Hachioji, JP
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last 30 patents
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Patent Grant
Photoreceptor having photosensitive layer comprising a brominated a...
Patent number
4,835,080
Issue date
May 30, 1989
Konishiroku Photo Industry Co., Ltd.
Yoshiaki Takei
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Disazo photoreceptors for electrophotography
Patent number
4,537,847
Issue date
Aug 27, 1985
Konishiroku Photo Industry Co., Ltd.
Jiro Takahashi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic bisazo photosensitive member
Patent number
4,515,881
Issue date
May 7, 1985
Konishiroku Photo Industry Co., Ltd.
Kiyoshi Sawada
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic substituted p,p'-bisazo diphenyl acrylonitrile...
Patent number
4,495,261
Issue date
Jan 22, 1985
Konishiroku Photo Industry Co., Ltd.
Jiro Takahashi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic photoreceptor
Patent number
4,451,548
Issue date
May 29, 1984
Konishiroku Photo Industry Co., Ltd.
Akira Kinoshita
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Electrophotographic photoreceptor with hydrazone derivative
Patent number
4,448,868
Issue date
May 15, 1984
Konishiroku Photo Industry Co., Ltd.
Shinichi Suzuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotosensitive receptor with trisazo compound
Patent number
4,426,432
Issue date
Jan 17, 1984
Konishiroku Photo Industry Co., Ltd.
Kiyoshi Sawada
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Layered electrophotographic photosensitive element having hydrazone...
Patent number
4,424,266
Issue date
Jan 3, 1984
Konishiroku Photo Industry Co., Ltd.
Seiji Kurihara
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Electrophotographic element with fluorenylidene hydrazone compounds
Patent number
4,415,640
Issue date
Nov 15, 1983
Konishiroku Photo Industry Co., Ltd.
Satoshi Goto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic light-sensitive element
Patent number
4,415,641
Issue date
Nov 15, 1983
Konishiroku Photo Industry Co., Ltd.
Satoshi Goto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Layered electrophotographic photosensitive element having hydrazone...
Patent number
4,410,615
Issue date
Oct 18, 1983
Konishiroku Photo Industry Co., Ltd.
Satoshi Goto
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Photosensitive elements for electrophotography
Patent number
4,278,746
Issue date
Jul 14, 1981
Konishiroku Photo Industry Co., Ltd.
Satoshi Goto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY