Haruji Mizuishi

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Charging device, process cartridge, image forming apparatus, and toner
- Patent number 8,428,488
- Issue date Apr 23, 2013
- Ricoh Company, Ltd.
- Haruji Mizuishi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Charging device, process cartridge, image forming apparatus, and toner
- Patent number 8,000,627
- Issue date Aug 16, 2011
- Ricoh Company, Ltd.
- Haruji Mizuishi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus, lubricant applying device, transfer device...
- Patent number 7,826,786
- Issue date Nov 2, 2010
- Ricoh Company, Limited
- Takeo Suda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method and apparatus for image forming and effectively applying lub...
- Patent number 7,672,635
- Issue date Mar 2, 2010
- Ricoh Co., Ltd.
- Yoshiki Hozumi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and toner
- Patent number 7,539,451
- Issue date May 26, 2009
- Ricoh Company Ltd.
- Masanori Kawasumi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus, process cartridge, developing unit, and im...
- Patent number 7,522,850
- Issue date Apr 21, 2009
- Ricoh Company, Ltd.
- Kazuhito Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process cartridge including at least one replaceable member and ima...
- Patent number 7,493,061
- Issue date Feb 17, 2009
- Ricoh Company, Ltd.
- Satoshi Hatori
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method and apparatus for image forming capable of effectively preve...
- Patent number 7,477,856
- Issue date Jan 13, 2009
- Ricoh Company, Ltd.
- Takuzi Yoneda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method and apparatus for image forming and effectively applying lub...
- Patent number 7,373,101
- Issue date May 13, 2008
- Ricoh Co., Ltd.
- Yoshiki Hozumi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus that charges a photosensitive member by sup...
- Patent number 7,333,744
- Issue date Feb 19, 2008
- Ricoh Company, Ltd.
- Eiji Shimojo
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cleaning device, process cartridge, image forming apparatus and toner
- Patent number 7,313,347
- Issue date Dec 25, 2007
- Ricoh Company Ltd.
- Takeshi Shintani
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method and apparatus for image forming capable of using minuscule s...
- Patent number 7,209,698
- Issue date Apr 24, 2007
- Ricoh Company, Ltd.
- Takaaki Tawada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming process and image forming apparatus
- Patent number 7,177,555
- Issue date Feb 13, 2007
- Ricoh Company, Ltd.
- Bing Shu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus, process cartridge, developing unit, and im...
- Patent number 7,158,730
- Issue date Jan 2, 2007
- Ricoh Company, Ltd.
- Kazuhito Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus including developing gap between image and...
- Patent number 6,928,255
- Issue date Aug 9, 2005
- Ricoh Company, Ltd.
- Haruji Mizuishi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 6,898,383
- Issue date May 24, 2005
- Ricoh Company, Ltd.
- Mayumi Ohori
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having a sensor for sensing an amount of re...
- Patent number 6,628,903
- Issue date Sep 30, 2003
- Ricoh Company, Ltd.
- Mayumi Ohori
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image-forming apparatus having a seal for a developer and a method...
- Patent number 6,266,501
- Issue date Jul 24, 2001
- Ricoh Company, Ltd.
- Haruji Mizuishi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus with a voltage applying unit for image tran...
- Patent number 6,160,969
- Issue date Dec 12, 2000
- Ricoh Company, Ltd.
- Kouji Ishigaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus with improved toner density control
- Patent number 6,148,161
- Issue date Nov 14, 2000
- Ricoh Company, Ltd.
- Noriyuki Usui
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having detachable transfer roller and disch...
- Patent number 6,144,822
- Issue date Nov 7, 2000
- Ricoh Company, Ltd.
- Toshitaka Yamaguchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having a sensor for sensing an amount of re...
- Patent number 6,144,811
- Issue date Nov 7, 2000
- Ricoh Company
- Mayumi Ohori
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and method for controlling charging and dev...
- Patent number 6,128,449
- Issue date Oct 3, 2000
- Ricoh Company, Ltd.
- Hideki Zenba
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic image forming apparatus
- Patent number 6,085,062
- Issue date Jul 4, 2000
- Ricoh Company, Ltd.
- Haruji Mizuishi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and method for obtaining appropriate toner...
- Patent number 6,055,388
- Issue date Apr 25, 2000
- Ricoh Company, Ltd.
- Shigeru Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming method and apparatus for controlling amount of suppli...
- Patent number 6,006,050
- Issue date Dec 21, 1999
- Ricoh Company, Ltd.
- Shigeru Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and method for automatically adjusting tone...
- Patent number 5,915,143
- Issue date Jun 22, 1999
- Ricoh Company, Ltd.
- Shigeru Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming device with improved mixing of circulated developer w...
- Patent number 5,887,224
- Issue date Mar 23, 1999
- Ricoh Company, Ltd.
- Haruji Mizuishi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having roller cleaning system and method
- Patent number 5,873,019
- Issue date Feb 16, 1999
- Ricoh Company, Ltd.
- Haruji Mizuishi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Apparatus and method for cleaning a transfer device of an image for...
- Patent number 5,857,132
- Issue date Jan 5, 1999
- Ricoh Company, Ltd.
- Haruji Mizuishi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
CHARGING DEVICE, PROCESS CARTRIDGE, IMAGE FORMING APPARATUS, AND TONER
- Publication number 20110262179
- Publication date Oct 27, 2011
- Haruji Mizuishi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
METHOD AND APPARATUS FOR IMAGE FORMING AND EFFECTIVELY APPLYING LUB...
- Publication number 20080175635
- Publication date Jul 24, 2008
- Yoshiki Hozumi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Powder transport unit having enhanced transportability and operabil...
- Publication number 20080013998
- Publication date Jan 17, 2008
- Naohiro Kumagai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Charging Device, Process Cartridge, Image Forming Apparatus, And Toner
- Publication number 20070196123
- Publication date Aug 23, 2007
- Haruji Mizuishi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus, lubricant applying device, transfer device...
- Publication number 20070183824
- Publication date Aug 9, 2007
- Takeo Suda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS, PROCESS CARTRIDGE, DEVELOPING UNIT, AND IM...
- Publication number 20070071499
- Publication date Mar 29, 2007
- Kazuhito Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Method and apparatus for image forming and effectively applying lub...
- Publication number 20060194662
- Publication date Aug 31, 2006
- Yoshiki Hozumi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus
- Publication number 20060133837
- Publication date Jun 22, 2006
- Eiji Shimojo
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Method and apparatus for image forming capable of effectively preve...
- Publication number 20060133834
- Publication date Jun 22, 2006
- Takuzi Yoneda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Electrophotographic image forming apparatus, and toner, process car...
- Publication number 20060115286
- Publication date Jun 1, 2006
- Takeshi Uchitani
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus and toner
- Publication number 20060062594
- Publication date Mar 23, 2006
- Masanori Kawasumi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Process cartridge and image forming apparatus
- Publication number 20060045603
- Publication date Mar 2, 2006
- Satoshi Hatori
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Cleaning device, process cartridge, image forming apparatus and toner
- Publication number 20060039726
- Publication date Feb 23, 2006
- Takeshi Shintani
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Charging apparatus, and image forming apparatus equipped with same
- Publication number 20050271420
- Publication date Dec 8, 2005
- Yuji Arai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Method and apparatus for image forming capable of using minuscule s...
- Publication number 20050152722
- Publication date Jul 14, 2005
- Takaaki Tawada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus, process cartridge, developing unit, and im...
- Publication number 20050063713
- Publication date Mar 24, 2005
- Kazuhito Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming process and image forming apparatus
- Publication number 20040146309
- Publication date Jul 29, 2004
- Bing Shu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus
- Publication number 20040071475
- Publication date Apr 15, 2004
- Mayumi Ohori
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus for preventing the fixing of low-temperatur...
- Publication number 20040009421
- Publication date Jan 15, 2004
- Haruji Mizuishi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Haruji Mizuishi

Person

Patents Grantslast 30 patents

Charging device, process cartridge, image forming apparatus, and toner

Charging device, process cartridge, image forming apparatus, and toner

Image forming apparatus, lubricant applying device, transfer device...

Method and apparatus for image forming and effectively applying lub...

Image forming apparatus and toner

Image forming apparatus, process cartridge, developing unit, and im...

Process cartridge including at least one replaceable member and ima...

Method and apparatus for image forming capable of effectively preve...

Method and apparatus for image forming and effectively applying lub...

Image forming apparatus that charges a photosensitive member by sup...

Cleaning device, process cartridge, image forming apparatus and toner

Method and apparatus for image forming capable of using minuscule s...

Image forming process and image forming apparatus

Image forming apparatus, process cartridge, developing unit, and im...

Image forming apparatus including developing gap between image and...

Image forming apparatus

Image forming apparatus having a sensor for sensing an amount of re...

Image-forming apparatus having a seal for a developer and a method...

Image forming apparatus with a voltage applying unit for image tran...

Image forming apparatus with improved toner density control

Image forming apparatus having detachable transfer roller and disch...

Image forming apparatus having a sensor for sensing an amount of re...

Image forming apparatus and method for controlling charging and dev...

Electrophotographic image forming apparatus

Image forming apparatus and method for obtaining appropriate toner...

Image forming method and apparatus for controlling amount of suppli...

Image forming apparatus and method for automatically adjusting tone...

Image forming device with improved mixing of circulated developer w...

Image forming apparatus having roller cleaning system and method

Apparatus and method for cleaning a transfer device of an image for...

Patents Applicationslast 30 patents

CHARGING DEVICE, PROCESS CARTRIDGE, IMAGE FORMING APPARATUS, AND TONER

METHOD AND APPARATUS FOR IMAGE FORMING AND EFFECTIVELY APPLYING LUB...

Powder transport unit having enhanced transportability and operabil...

Charging Device, Process Cartridge, Image Forming Apparatus, And Toner

Image forming apparatus, lubricant applying device, transfer device...

IMAGE FORMING APPARATUS, PROCESS CARTRIDGE, DEVELOPING UNIT, AND IM...

Method and apparatus for image forming and effectively applying lub...

Image forming apparatus

Method and apparatus for image forming capable of effectively preve...

Electrophotographic image forming apparatus, and toner, process car...

Image forming apparatus and toner

Process cartridge and image forming apparatus

Cleaning device, process cartridge, image forming apparatus and toner

Charging apparatus, and image forming apparatus equipped with same

Method and apparatus for image forming capable of using minuscule s...

Image forming apparatus, process cartridge, developing unit, and im...

Image forming process and image forming apparatus

Image forming apparatus

Image forming apparatus for preventing the fixing of low-temperatur...