Yoshiaki Takei

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Electrophotographic photoreceptor
- Patent number 5,863,689
- Issue date Jan 26, 1999
- Konica Corporation
- Yoshiaki Takei
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotography photoreceptor
- Patent number 5,679,488
- Issue date Oct 21, 1997
- Konica Corporation
- Akihiko Itami
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photorecptor for electrophotography and image forming method
- Patent number 5,434,027
- Issue date Jul 18, 1995
- Konica Corporation
- Takeo Oshiba
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method for preparing an electrophotographic photoreceptor
- Patent number 5,403,691
- Issue date Apr 4, 1995
- Konica Corporation
- Takeo Oshiba
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner guide roller for image-forming process and apparatus applied...
- Patent number 5,349,426
- Issue date Sep 20, 1994
- Konica Corporation
- Koichi Kudoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photoreceptor comprising the combined use of a quinone and azo comp...
- Patent number 5,134,050
- Issue date Jul 28, 1992
- Konica Corporation
- Yoshihiko Eto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic photoreceptor comprising an undercoat layer con...
- Patent number 5,075,189
- Issue date Dec 24, 1991
- Konica Corporation
- Tadasu Ichino
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photoreceptor having polycarbonate layers and process for the prepa...
- Patent number RE33724
- Issue date Oct 22, 1991
- Konica Corporation
- Yoshiaki Takei
- 430 - Radiation imagery chemistry: process, composition, or product thereof
Information Patent Grant
Electrophotographic photosensitive member
- Patent number 4,952,470
- Issue date Aug 28, 1990
- Konica Corporation
- Kiyoshi Tamaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Polycarbonate-containing photoreceptors containing a hindered pheno...
- Patent number 4,931,372
- Issue date Jun 5, 1990
- Konica Corporation
- Yoshiaki Takei
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming method
- Patent number 4,888,262
- Issue date Dec 19, 1989
- Konica Corporation
- Kiyoshi Tamaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information 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
Photoreceptor having polycarbonate layers and process for the prepa...
- Patent number 4,637,971
- Issue date Jan 20, 1987
- Konishiroku Photo Industry Co., Ltd.
- Yoshiaki Takei
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Positive charging photorecptor
- Patent number 4,599,287
- Issue date Jul 8, 1986
- Konishiroku Photo Industry Co., Ltd.
- Yoshihide Fujimaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Light-sensitive member and preparation thereof for use in electroph...
- Patent number 4,591,542
- Issue date May 27, 1986
- Konishiroku Photo Industry Co., Ltd.
- Yoshihide Fujimaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic photosensitive member
- Patent number 4,540,651
- Issue date Sep 10, 1985
- Konishiroku Photo Industry Co., Ltd.
- Yoshihide Fujimaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photoreceptor for electrophotography, method of forming an electros...
- Patent number 4,477,549
- Issue date Oct 16, 1984
- Konishiroku Photo Industry Co., Ltd.
- Yoshihide Fujimaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photoconductive receptor for an electrophotography
- Patent number 4,450,218
- Issue date May 22, 1984
- Konishiroku Photo Industry Co., Ltd.
- Yoshiaki Takei
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photosensitive element for electrophotography produced by sublimation
- Patent number 4,431,722
- Issue date Feb 14, 1984
- Konishiroku Photo Industry Co., Ltd.
- Yoshiaki Takei
- 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 element for electrophotography
- Patent number 4,302,521
- Issue date Nov 24, 1981
- Konishiroku Photo Industry Co., Ltd.
- Yoshiaki Takei
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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
Information Patent Grant
Substrates for use in screen photosensitive element
- Patent number 4,232,104
- Issue date Nov 4, 1980
- Konishiroku Photo Industry Co., Ltd.
- Sohji Shinozaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photo-sensitive screen for producing electrostatic latent image
- Patent number 4,218,124
- Issue date Aug 19, 1980
- Konishiroku Photo Industry Co., Ltd.
- Sohji Shinozaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Yoshiaki Takei

Person

Patents Grantslast 30 patents

Electrophotographic photoreceptor

Electrophotography photoreceptor

Photorecptor for electrophotography and image forming method

Method for preparing an electrophotographic photoreceptor

Toner guide roller for image-forming process and apparatus applied...

Photoreceptor comprising the combined use of a quinone and azo comp...

Electrophotographic photoreceptor comprising an undercoat layer con...

Photoreceptor having polycarbonate layers and process for the prepa...

Electrophotographic photosensitive member

Polycarbonate-containing photoreceptors containing a hindered pheno...

Image forming method

Photoreceptor having photosensitive layer comprising a brominated a...

Photoreceptor having polycarbonate layers and process for the prepa...

Positive charging photorecptor

Light-sensitive member and preparation thereof for use in electroph...

Electrophotographic photosensitive member

Photoreceptor for electrophotography, method of forming an electros...

Photoconductive receptor for an electrophotography

Photosensitive element for electrophotography produced by sublimation

Layered electrophotographic photosensitive element having hydrazone...

Electrophotographic element with fluorenylidene hydrazone compounds

Electrophotographic light-sensitive element

Layered electrophotographic photosensitive element having hydrazone...

Photosensitive element for electrophotography

Photosensitive elements for electrophotography

Substrates for use in screen photosensitive element

Photo-sensitive screen for producing electrostatic latent image