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last 30 patents
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Patent Grant
Electrophotographic photoreceptor with superlattic barrier layer
Patent number
5,143,807
Issue date
Sep 1, 1992
Kabushiki Kaisha Toshiba
Shuji Yoshizawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic photoreceptor with superlattice structure
Patent number
4,859,552
Issue date
Aug 22, 1989
Kabushiki Kaisha Toshiba
Shuji Yoshizawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic photoreceptor
Patent number
4,851,312
Issue date
Jul 25, 1989
Kabushiki Kaisha Toshiba
Shuji Yoshizawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic superlattice photoreceptor
Patent number
4,810,605
Issue date
Mar 7, 1989
Kabushiki Kaisha Toshiba
Shuji Yoshizawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic superlattice photoreceptor
Patent number
4,804,605
Issue date
Feb 14, 1989
Kabushiki Kaisha Toshiba
Shuji Yoshizawa
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Electrophotographic photoreceptor
Patent number
4,803,139
Issue date
Feb 7, 1989
Kabushiki Kaisha Toshiba
Shuji Yoshizawa
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Electrophotographic superlattice photoreceptor
Patent number
4,803,141
Issue date
Feb 7, 1989
Kabushiki Kaisha Toshiba
Shuji Yoshizawa
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Electrophotographic photosensitive member using microcrystalline si...
Patent number
4,717,637
Issue date
Jan 5, 1988
Kabushiki Kaisha Toshiba
Shuji Yoshizawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic photosensitive member using microcrystalline si...
Patent number
4,713,308
Issue date
Dec 15, 1987
Kabushiki Kaisha Toshiba
Shuji Yoshizawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic photosensitive member having barrier layer comp...
Patent number
4,678,731
Issue date
Jul 7, 1987
Kabushiki Kaisha Toshiba
Shuji Yoshizawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY