Hiroshi MIZUSAWA

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Cleaning device, and image forming apparatus and process unit incor...
- Patent number 10,018,941
- Issue date Jul 10, 2018
- Ricoh Company, Ltd.
- Daisuke Tomita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner conveyance device and image forming apparatus
- Patent number 9,983,512
- Issue date May 29, 2018
- Ricoh Company, Ltd.
- Yusuke Ishizuka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image bearer protective agent, protective layer forming device, ima...
- Patent number 9,753,426
- Issue date Sep 5, 2017
- Ricoh Company, Ltd.
- Kenji Komito
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Powder conveying device, process cartridge, and image forming appar...
- Patent number 9,405,227
- Issue date Aug 2, 2016
- Ricoh Company, Ltd.
- Hiroshi Mizusawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Powder container
- Patent number D750702
- Issue date Mar 1, 2016
- Ricoh Company, Ltd.
- Hirobumi Ooyoshi
- D18 - Printing and office machinery
Information Patent Grant
Image forming apparatus, detachable unit, and plural detachable units
- Patent number 9,031,456
- Issue date May 12, 2015
- Ricoh Company, Ltd.
- Hiroshi Mizusawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Lubricant applicator, process cartridge, transfer unit, and image f...
- Patent number 8,588,672
- Issue date Nov 19, 2013
- Ricoh Company, Ltd.
- Yuji Arai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus, image forming method, and process cartridg...
- Patent number 8,543,029
- Issue date Sep 24, 2013
- Ricoh Company, Ltd.
- Hiroshi Mizusawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 8,472,856
- Issue date Jun 25, 2013
- Ricoh Company, Limited
- Hiromichi Ninomiya
- 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
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
Cleaning apparatus with conductive member
- Patent number 7,139,503
- Issue date Nov 21, 2006
- Ricoh Company, Ltd.
- Hiroshi Mizusawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cleaning device including brush roller with high cleaning performan...
- Patent number 7,068,960
- Issue date Jun 27, 2006
- Ricoh Company, Ltd.
- Hiroshi Mizusawa
- 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
- Patent number 6,807,390
- Issue date Oct 19, 2004
- Ricoh Company, Ltd.
- Takeo Suda
- 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

Patents Applicationslast 30 patents

Information Patent Application
PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS
- Publication number 20180373198
- Publication date Dec 27, 2018
- Hiroshi Mizusawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CLEANING DEVICE, AND IMAGE FORMING APPARATUS AND PROCESS UNIT INCOR...
- Publication number 20170269511
- Publication date Sep 21, 2017
- Daisuke TOMITA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
TONER CONVEYANCE DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20170261887
- Publication date Sep 14, 2017
- RICOH COMPANY, LTD.
- Yusuke ISHIZUKA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE BEARER PROTECTIVE AGENT, PROTECTIVE LAYER FORMING DEVICE, IMA...
- Publication number 20170090399
- Publication date Mar 30, 2017
- Kenji KOMITO
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
POWDER CONVEYING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPAR...
- Publication number 20150346638
- Publication date Dec 3, 2015
- Hiroshi MIZUSAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS, DETACHABLE UNIT, AND PLURAL DETACHABLE UNITS
- Publication number 20130163998
- Publication date Jun 27, 2013
- Hiroshi Mizusawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Lubricant applicator, process cartridge, transfer unit, and image f...
- Publication number 20110274474
- Publication date Nov 10, 2011
- RICOH COMPANY, LTD.
- Yuji Arai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus
- Publication number 20110206432
- Publication date Aug 25, 2011
- RICOH COMPANY, LIMITED
- Hiromichi Ninomiya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus, image forming method, and process cartridge
- Publication number 20110064452
- Publication date Mar 17, 2011
- RICOH COMPANY, LTD.
- Hiroshi Mizusawa
- 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
Cleaning device including brush roller with high cleaning performan...
- Publication number 20050019057
- Publication date Jan 27, 2005
- RICOH COMPANY, LTD.
- Hiroshi Mizusawa
- 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
Cleaning apparatus with conductive member
- Publication number 20040131405
- Publication date Jul 8, 2004
- Hiroshi Mizusawa
- 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
- Publication number 20030215259
- Publication date Nov 20, 2003
- Takeo Suda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Hiroshi MIZUSAWA

Person

Patents Grantslast 30 patents

Cleaning device, and image forming apparatus and process unit incor...

Toner conveyance device and image forming apparatus

Image bearer protective agent, protective layer forming device, ima...

Powder conveying device, process cartridge, and image forming appar...

Powder container

Image forming apparatus, detachable unit, and plural detachable units

Lubricant applicator, process cartridge, transfer unit, and image f...

Image forming apparatus, image forming method, and process cartridg...

Image forming apparatus

Cleaning device, process cartridge, image forming apparatus and toner

Image forming process and image forming apparatus

Cleaning apparatus with conductive member

Cleaning device including brush roller with high cleaning performan...

Image forming apparatus

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

Patents Applicationslast 30 patents

PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS

CLEANING DEVICE, AND IMAGE FORMING APPARATUS AND PROCESS UNIT INCOR...

TONER CONVEYANCE DEVICE AND IMAGE FORMING APPARATUS

IMAGE BEARER PROTECTIVE AGENT, PROTECTIVE LAYER FORMING DEVICE, IMA...

POWDER CONVEYING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPAR...

IMAGE FORMING APPARATUS, DETACHABLE UNIT, AND PLURAL DETACHABLE UNITS

Lubricant applicator, process cartridge, transfer unit, and image f...

Image forming apparatus

Image forming apparatus, image forming method, and process cartridge

Cleaning device, process cartridge, image forming apparatus and toner

Cleaning device including brush roller with high cleaning performan...

Image forming process and image forming apparatus

Cleaning apparatus with conductive member

Image forming apparatus

Image forming apparatus