Takaya Muraishi

Person

Yokohama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Image projection device
- Patent number 11,647,170
- Issue date May 9, 2023
- Ricoh Company, Ltd.
- Tomoko Takahashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Urethane foam member, seal structure, toner storage container, proc...
- Patent number 8,999,501
- Issue date Apr 7, 2015
- Ricoh Company, Ltd.
- Takaya Muraishi
- B32 - LAYERED PRODUCTS
Information Patent Grant
Cleaning device and image forming apparatus including same
- Patent number 8,699,908
- Issue date Apr 15, 2014
- Ricoh Company, Ltd.
- Hisashi Kikuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Apparatus and method for changing a voltage setting for an image fo...
- Patent number 8,699,898
- Issue date Apr 15, 2014
- Ricoh Company, Ltd.
- Hisashi Kikuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cleaning device, image forming apparatus including same, and method...
- Patent number 8,682,208
- Issue date Mar 25, 2014
- Ricoh Company, Ltd.
- Akira Asaoka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cleaning device and image forming apparatus including same
- Patent number 8,483,605
- Issue date Jul 9, 2013
- Ricoh Company, Ltd.
- Akira Asaoka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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
Cleaning unit, process cartridge incorporating same, and image form...
- Patent number 8,315,535
- Issue date Nov 20, 2012
- Ricoh Company, Ltd.
- Takeshi Shintani
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 8,280,293
- Issue date Oct 2, 2012
- Ricoh Company, Limited
- Takeshi Shintani
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and process cartridge having a charging unit
- Patent number 8,204,422
- Issue date Jun 19, 2012
- Ricoh Company, Limited
- Satoshi Hatori
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cleaning device with accumulation prevention, process cartridge, an...
- Patent number 8,204,423
- Issue date Jun 19, 2012
- Ricoh Company, Ltd.
- Satoshi Hatori
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus with coating mode
- Patent number 8,095,059
- Issue date Jan 10, 2012
- Ricoh Company, Ltd.
- Takeshi Shintani
- 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, and charging device and process cartridge...
- Patent number 7,995,947
- Issue date Aug 9, 2011
- Ricoh Company, Ltd.
- Kaoru Yoshino
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process cartridge and image forming apparatus for effectively clean...
- Patent number 7,949,281
- Issue date May 24, 2011
- Ricoh Company Limited
- Takaya Muraishi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Lubricating device, lubricant applicator, and priming agent used th...
- Patent number 7,899,383
- Issue date Mar 1, 2011
- Ricoh Company Limited
- Takeshi Shintani
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus, image forming device charging device and l...
- Patent number 7,894,758
- Issue date Feb 22, 2011
- Ricoh Company, Ltd.
- Takeshi Shintani
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and process cartridge including charging bi...
- Patent number 7,873,291
- Issue date Jan 18, 2011
- Ricoh Company Limited
- Akio Kosuge
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cleaning unit, image carrying unit and image forming apparatus usin...
- Patent number 7,835,683
- Issue date Nov 16, 2010
- Ricoh Company, Ltd.
- Takaya Muraishi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and process cartridge used therein
- Patent number 7,756,439
- Issue date Jul 13, 2010
- Ricoh Company Limited
- Akio Kosuge
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cleaning device, process cartridge and image forming apparatus
- Patent number 7,680,446
- Issue date Mar 16, 2010
- Ricoh Company, Limited
- Takeshi Shintani
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Charging device including charging roller and cleaning roller
- Patent number 7,680,429
- Issue date Mar 16, 2010
- Ricoh Company, Ltd.
- Muraishi Takaya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Charged device, cleaning device, process cartridge, toner, and imag...
- Patent number 7,477,862
- Issue date Jan 13, 2009
- Ricoh Company, Ltd.
- Muraishi Takaya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cleaning member, cleaning device, charging device, transfer device,...
- Patent number 7,263,308
- Issue date Aug 28, 2007
- Ricoh Company, Limited
- Hirohmi Harada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Charge roller for an image forming apparatus and method of producin...
- Patent number 6,628,912
- Issue date Sep 30, 2003
- Ricoh Company, Ltd.
- Ken Amemiya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Charging device for image forming apparatus
- Patent number 6,088,551
- Issue date Jul 11, 2000
- Ricoh Company, Ltd.
- Masumi Satoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus using a roller type charging system
- Patent number 5,946,529
- Issue date Aug 31, 1999
- Ricoh Company, Ltd.
- Masumi Sato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic method and apparatus including a toner recycle...
- Patent number 5,878,317
- Issue date Mar 2, 1999
- Ricoh Company, Ltd.
- Katsumi Masuda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner spreading device for a charging roller of an image forming ap...
- Patent number 5,799,229
- Issue date Aug 25, 1998
- Ricoh Company, Ltd.
- Masato Yokoyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Paper guide device for image forming apparatus
- Patent number 5,594,539
- Issue date Jan 14, 1997
- Ricoh Company, Ltd.
- Jun'ichi Murano
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
IMAGE PROJECTION DEVICE
- Publication number 20210127097
- Publication date Apr 29, 2021
- RICOH COMPANY, LTD.
- Tomoko TAKAHASHI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20130315617
- Publication date Nov 28, 2013
- Kenji SUGIURA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20120224870
- Publication date Sep 6, 2012
- Hisashi KIKUCHI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CLEANING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME
- Publication number 20120099883
- Publication date Apr 26, 2012
- Hisashi KIKUCHI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CLEANING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME
- Publication number 20120087704
- Publication date Apr 12, 2012
- Akira ASAOKA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CLEANING DEVICE, IMAGE FORMING APPARATUS INCLUDING SAME, AND METHOD...
- Publication number 20120034006
- Publication date Feb 9, 2012
- Akira ASAOKA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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
Image forming apparatus
- Publication number 20110026992
- Publication date Feb 3, 2011
- Ricoh Company, Limited
- Takeshi Shintani
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Cleaning unit, process cartriedge incorporating same, and image for...
- Publication number 20100189461
- Publication date Jul 29, 2010
- Ricoh Company, Ltd.
- Takeshi Shintani
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE
- Publication number 20090252510
- Publication date Oct 8, 2009
- Takeshi Shintani
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CLEANING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS INC...
- Publication number 20090185842
- Publication date Jul 23, 2009
- Satoshi Hatori
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CLEANING UNIT, IMAGE CARRYING UNIT AND IMAGE FORMING APPARATUS USIN...
- Publication number 20090142115
- Publication date Jun 4, 2009
- Takaya MURAISHI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
URETHANE FOAM MEMBER, SEAL STRUCTURE, TONER STORAGE CONTAINER, PROC...
- Publication number 20090142574
- Publication date Jun 4, 2009
- RICOH COMPANY, LTD.
- Takaya Muraishi
- B32 - LAYERED PRODUCTS
Information Patent Application
LUBRICATING DEVICE, LUBRICANT APPLICATOR, AND PRIMING AGENT USED TH...
- Publication number 20090103944
- Publication date Apr 23, 2009
- Takeshi Shintani
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CHARGING DEVICE INCLUDING CHARGING ROLLER AND CLEANING ROLLER
- Publication number 20090087213
- Publication date Apr 2, 2009
- Muraishi Takaya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE USED THEREIN
- Publication number 20090060554
- Publication date Mar 5, 2009
- Akio KOSUGE
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS, AND CHARGING DEVICE AND PROCESS CARTRIDGE...
- Publication number 20090052939
- Publication date Feb 26, 2009
- Kaoru Yoshino
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE
- Publication number 20090010693
- Publication date Jan 8, 2009
- Satoshi Hatori
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE
- Publication number 20080304843
- Publication date Dec 11, 2008
- Akio KOSUGE
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
GRID ELECTRODE, SCOROTRON CHARGER, AND PROCESS CARTRIDGE, AND IMAGE...
- Publication number 20080253806
- Publication date Oct 16, 2008
- Kaoru YOSHINO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS FOR EFFECTIVELY CLEAN...
- Publication number 20080124117
- Publication date May 29, 2008
- Takaya MURAISHI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20080069615
- Publication date Mar 20, 2008
- Takeshi SHINTANI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CLEANING DEVICE, PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS
- Publication number 20080069614
- Publication date Mar 20, 2008
- Takeshi SHINTANI
- 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
Charged device, cleaning device, process cartridge, toner, and imag...
- Publication number 20050191081
- Publication date Sep 1, 2005
- Takaya Muraishi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Cleaning member, cleaning device, charging device, transfer device,...
- Publication number 20050063728
- Publication date Mar 24, 2005
- Hirohmi Harada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Charge roller for an image forming apparatus and method of producin...
- Publication number 20020037180
- Publication date Mar 28, 2002
- Ken Amemiya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Takaya Muraishi

Person

Patents Grantslast 30 patents

Image projection device

Urethane foam member, seal structure, toner storage container, proc...

Cleaning device and image forming apparatus including same

Apparatus and method for changing a voltage setting for an image fo...

Cleaning device, image forming apparatus including same, and method...

Cleaning device and image forming apparatus including same

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

Cleaning unit, process cartridge incorporating same, and image form...

Image forming apparatus

Image forming apparatus and process cartridge having a charging unit

Cleaning device with accumulation prevention, process cartridge, an...

Image forming apparatus with coating mode

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

Image forming apparatus, and charging device and process cartridge...

Process cartridge and image forming apparatus for effectively clean...

Lubricating device, lubricant applicator, and priming agent used th...

Image forming apparatus, image forming device charging device and l...

Image forming apparatus and process cartridge including charging bi...

Cleaning unit, image carrying unit and image forming apparatus usin...

Image forming apparatus and process cartridge used therein

Cleaning device, process cartridge and image forming apparatus

Charging device including charging roller and cleaning roller

Charged device, cleaning device, process cartridge, toner, and imag...

Cleaning member, cleaning device, charging device, transfer device,...

Charge roller for an image forming apparatus and method of producin...

Charging device for image forming apparatus

Image forming apparatus using a roller type charging system

Electrophotographic method and apparatus including a toner recycle...

Toner spreading device for a charging roller of an image forming ap...

Paper guide device for image forming apparatus

Patents Applicationslast 30 patents

IMAGE PROJECTION DEVICE

IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

CLEANING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME

CLEANING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME

CLEANING DEVICE, IMAGE FORMING APPARATUS INCLUDING SAME, AND METHOD...

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

Image forming apparatus

Cleaning unit, process cartriedge incorporating same, and image for...

IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE

CLEANING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS INC...

CLEANING UNIT, IMAGE CARRYING UNIT AND IMAGE FORMING APPARATUS USIN...

URETHANE FOAM MEMBER, SEAL STRUCTURE, TONER STORAGE CONTAINER, PROC...

LUBRICATING DEVICE, LUBRICANT APPLICATOR, AND PRIMING AGENT USED TH...

CHARGING DEVICE INCLUDING CHARGING ROLLER AND CLEANING ROLLER

IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE USED THEREIN

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

IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE

IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE

GRID ELECTRODE, SCOROTRON CHARGER, AND PROCESS CARTRIDGE, AND IMAGE...

PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS FOR EFFECTIVELY CLEAN...

IMAGE FORMING APPARATUS

CLEANING DEVICE, PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS

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

Charged device, cleaning device, process cartridge, toner, and imag...

Cleaning member, cleaning device, charging device, transfer device,...

Charge roller for an image forming apparatus and method of producin...