Masayasu Anzai

Person

Ibaraki, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Scanning recording type printing method and apparatus for increasin...
- Patent number RE38235
- Issue date Aug 26, 2003
- Hitachi, Ltd.
- Shinya Kobayashi
- 358 - Facsimile and static presentation processing
Information Patent Grant
Developing system having a plurality of developing rollers with opp...
- Patent number 6,330,414
- Issue date Dec 11, 2001
- Hitachi Koki Co., Ltd.
- Yasuo Takuma
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrostatic recording apparatus
- Patent number 6,157,798
- Issue date Dec 5, 2000
- Hitachi Koki Co., Ltd.
- Tsuneaki Kawanishi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrostatic image forming apparatus
- Patent number 6,047,147
- Issue date Apr 4, 2000
- Hitachi Koki Co., Ltd.
- Koji Kato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Apparatus for printing on both sides of an image printing medium by...
- Patent number 6,032,015
- Issue date Feb 29, 2000
- Hitachi Koki Co, Ltd.
- Takao Umeda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic apparatus
- Patent number 5,923,933
- Issue date Jul 13, 1999
- Hitachi Koki Co., Ltd.
- Masayasu Anzai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device
- Patent number 5,907,755
- Issue date May 25, 1999
- Hitachi Koki Co., Ltd.
- Yasuo Takuma
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Color image forming apparatus and color image forming method thereof
- Patent number 5,869,214
- Issue date Feb 9, 1999
- Hitachi Koki Co., Ltd.
- Masayasu Anzai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Apparatus for printing images on both sides of an image printing me...
- Patent number 5,848,323
- Issue date Dec 8, 1998
- Hitachi Koki Co., Ltd.
- Takao Umeda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner for recording electrostatic image and electrostatic recording...
- Patent number 5,832,347
- Issue date Nov 3, 1998
- Hitachi Koki Co., Ltd.
- Katsuya Kawai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing apparatus and color electrophotographic apparatus using...
- Patent number 5,832,350
- Issue date Nov 3, 1998
- Hitachi, Ltd.
- Takao Kumasaka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having a photosensitive body formed of a ba...
- Patent number 5,701,560
- Issue date Dec 23, 1997
- Hitachi Koki Co., Ltd.
- Akio Tsujita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrostatic recording control method and electrostatic recording...
- Patent number 5,659,841
- Issue date Aug 19, 1997
- Hitachi Koki Co., Ltd.
- Takao Umeda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Development apparatus having a plurality of rolls rotated at partic...
- Patent number 5,630,201
- Issue date May 13, 1997
- Hitachi Koki Co., Ltd.
- Katsuhiko Suzuki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Bias cleaning system and electrostatic printing apparatus therewith...
- Patent number 5,600,405
- Issue date Feb 4, 1997
- Hitachi, Ltd.
- Takao Umeda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Imaging apparatus and method for cleaning transfer/conveyer means
- Patent number 5,579,096
- Issue date Nov 26, 1996
- Hitachi Koki Co., Ltd.
- Yousuke Saito
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic recording apparatus having improved residual to...
- Patent number 5,481,351
- Issue date Jan 2, 1996
- Hitachi Koki Co., Ltd.
- Katsuya Kawai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Color image forming device
- Patent number 5,473,422
- Issue date Dec 5, 1995
- Hitachi Koki Co., Ltd.
- Masayasu Anzai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Optional side multi-toner image forming apparatus using intermediat...
- Patent number 5,453,822
- Issue date Sep 26, 1995
- Hitachi Koki Co., Ltd.
- Masayasu Anzai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method and apparatus for forming toner image
- Patent number 5,422,219
- Issue date Jun 6, 1995
- Hitachi Koki Co., Ltd.
- Masayasu Anzai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device for electrophotograph-type printer
- Patent number 5,416,571
- Issue date May 16, 1995
- Hitachi Koki Co., Ltd.
- Koutaro Yamada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cleaning device for dry electrophotographic device
- Patent number 5,237,377
- Issue date Aug 17, 1993
- Hitachi Koki Co., Ltd.
- Toshimitsu Harada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image recording device and a data processing apparatus
- Patent number 5,223,952
- Issue date Jun 29, 1993
- Hitachi, Ltd.
- Masayasu Anzai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Scanning recording type printing method and apparatus for increasin...
- Patent number 4,926,248
- Issue date May 15, 1990
- Hitachi, Ltd.
- Shin'ya Kobayashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for forming multi-color toner image
- Patent number 4,822,702
- Issue date Apr 18, 1989
- Hitachi, Ltd.
- Nobuyoshi Hoshi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic process
- Patent number 4,769,672
- Issue date Sep 6, 1988
- Hitachi, Ltd.
- Nobuyoshi Hoshi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method for developing an electrostatic latent image in an electroph...
- Patent number 4,572,651
- Issue date Feb 25, 1986
- Hitachi, Ltd.
- Isamu Komatsu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing apparatus
- Patent number 4,545,325
- Issue date Oct 8, 1985
- Hitachi, Ltd.
- Isamu Komatsu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Laser beam printer
- Patent number 4,467,334
- Issue date Aug 21, 1984
- Hitachi, Ltd.
- Masayasu Anzai
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method for transferring toner images in electrophotography
- Patent number 4,427,755
- Issue date Jan 24, 1984
- Hitachi, Ltd.
- Kazuyoshi Tokunaga
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Masayasu Anzai

Person

Patents Grantslast 30 patents

Scanning recording type printing method and apparatus for increasin...

Developing system having a plurality of developing rollers with opp...

Electrostatic recording apparatus

Electrostatic image forming apparatus

Apparatus for printing on both sides of an image printing medium by...

Electrophotographic apparatus

Developing device

Color image forming apparatus and color image forming method thereof

Apparatus for printing images on both sides of an image printing me...

Toner for recording electrostatic image and electrostatic recording...

Developing apparatus and color electrophotographic apparatus using...

Image forming apparatus having a photosensitive body formed of a ba...

Electrostatic recording control method and electrostatic recording...

Development apparatus having a plurality of rolls rotated at partic...

Bias cleaning system and electrostatic printing apparatus therewith...

Imaging apparatus and method for cleaning transfer/conveyer means

Electrophotographic recording apparatus having improved residual to...

Color image forming device

Optional side multi-toner image forming apparatus using intermediat...

Method and apparatus for forming toner image

Developing device for electrophotograph-type printer

Cleaning device for dry electrophotographic device

Image recording device and a data processing apparatus

Scanning recording type printing method and apparatus for increasin...

Method for forming multi-color toner image

Electrophotographic process

Method for developing an electrostatic latent image in an electroph...

Developing apparatus

Laser beam printer

Method for transferring toner images in electrophotography