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Masakazu Matsumoto
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Yokohama, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Coloring compound and recording material using the same
Patent number
7,598,012
Issue date
Oct 6, 2009
Canon Kabushiki Kaisha
Yasuaki Murai
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Electrophotographic photosensitive member
Patent number
5,286,589
Issue date
Feb 15, 1994
Canon Kabushiki Kaisha
Shintetsu Go
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Electrophotographic photosensitive member
Patent number
5,238,765
Issue date
Aug 24, 1993
Canon Kabushiki Kaisha
Akihiro Senoo
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Electrophotographic photosensitive member with compound having elec...
Patent number
5,034,294
Issue date
Jul 23, 1991
Canon Kabushiki Kaisha
Shintetsu Go
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
5H-dibenzo(A,D) cycloheptanylidene derivative and 5H-dibenzo (A,D)...
Patent number
5,024,912
Issue date
Jun 18, 1991
Canon Kabushiki Kaisha
Toshie Neishi
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Electrophotographic photosensitive member
Patent number
4,931,371
Issue date
Jun 5, 1990
Canon Kabushiki Kaisha
Masakazu Matsumoto
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Function separated photosensitive member having a diphenylamine der...
Patent number
4,830,944
Issue date
May 16, 1989
Canon Kabushiki Kaisha
Shoji Umehara
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic photosenitive member comprising disazo compound...
Patent number
4,820,602
Issue date
Apr 11, 1989
Canon Kabushiki Kaisha
Masakazu Matsumoto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Photosensitive member for electrophotography containing trisazo pig...
Patent number
4,810,607
Issue date
Mar 7, 1989
Canon Kabushiki Kaisha
Masakazu Matsumoto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic member containing vinylene benzocarazole as cha...
Patent number
4,798,777
Issue date
Jan 17, 1989
Canon Kabushiki Kaisha
Takao Takiguchi
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Electrophotographic photosensitive member containing a disazo pigment
Patent number
4,788,119
Issue date
Nov 29, 1988
Canon Kabushiki Kaisha
Masataka Yamashita
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic photosensitive member containing disazo compound
Patent number
4,760,003
Issue date
Jul 26, 1988
Canon Kabushiki Kaisha
Masakazu Matsumoto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Photosensitive member for electrophotography
Patent number
4,743,523
Issue date
May 10, 1988
Canon Kabushiki Kaisha
Masataka Yamashita
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Trisazo photsensitive member for electrophotography
Patent number
4,735,882
Issue date
Apr 5, 1988
Canon Kabushiki Kaisha
Masataka Yamashita
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic photosensitive member containing polyvinylarylal
Patent number
4,717,636
Issue date
Jan 5, 1988
Canon Kabushiki Kaisha
Hideyuki Takahashi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic photosensitive member comprising disazo pigment
Patent number
4,702,982
Issue date
Oct 27, 1987
Canon Kabushiki Kaisha
Masakazu Matsumoto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Photosensitive member for electrophotography comprising azo pigments
Patent number
4,666,810
Issue date
May 19, 1987
Canon Kabushiki Kaisha
Shoji Umehara
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic photosensitive member
Patent number
4,666,809
Issue date
May 19, 1987
Canon Kabushiki Kaisha
Masakazu Matsumoto
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method of making photoconductive film and electrophotographic photo...
Patent number
4,615,965
Issue date
Oct 7, 1986
Canon Kabushiki Kaisha
Masakazu Matsumoto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic photosensitive member and preparation of photoc...
Patent number
4,615,963
Issue date
Oct 7, 1986
Canon Kabushiki Kaisha
Masakazu Matsumoto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic photosensitive member contains disazo photocond...
Patent number
4,610,943
Issue date
Sep 9, 1986
Canon Kabushiki Kaisha
Takao Takiguchi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic photosensitive member with disazo or trisazo co...
Patent number
4,427,753
Issue date
Jan 24, 1984
Canon Kabushiki Kaisha
Naoto Fujimura
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Hologram recording material
Patent number
4,287,277
Issue date
Sep 1, 1981
Canon Kabushiki Kaisha
Masakazu Matsumoto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Hologram and method of production thereof with photo-crosslinkable...
Patent number
4,258,111
Issue date
Mar 24, 1981
Canon Kabushiki Kaisha
Masakazu Matsumoto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Hologram and method of production thereof
Patent number
4,201,441
Issue date
May 6, 1980
Canon Kabushiki Kaisha
Masakazu Matsumoto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Hologram and method of production thereof
Patent number
4,172,724
Issue date
Oct 30, 1979
Canon Kabushiki Kaisha
Masakazu Matsumoto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
Novel coloring compound and recording material using the same
Publication number
20060183046
Publication date
Aug 17, 2006
Canon Kabushiki Kaisha
Yasuaki Murai
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...