Masanori Kawasumi

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Electrophotographic image forming method and apparatus with a cover...
- Patent number 8,483,598
- Issue date Jul 9, 2013
- Ricoh Company, Limited
- Shigekazu Enoki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 8,433,216
- Issue date Apr 30, 2013
- Ricoh Company, Limited
- Satoru Ishikake
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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
Image forming apparatus
- Patent number 8,422,897
- Issue date Apr 16, 2013
- Ricoh Company, Limited
- Hirokatsu Suzuki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus preventing gaps between a conveyor belt and...
- Patent number 8,385,793
- Issue date Feb 26, 2013
- Ricoh Company, Limited
- Masaharu Furuya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developer container, developer supplying device, and image forming...
- Patent number 8,195,070
- Issue date Jun 5, 2012
- Ricoh Company, Ltd.
- Hiroshi Hosokawa
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Developer container, developer supplying device, and image forming...
- Patent number 8,005,406
- Issue date Aug 23, 2011
- Ricoh Company, Ltd.
- Hiroshi Hosokawa
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
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
Development device, process cartridge, and image forming apparatus...
- Patent number 7,925,188
- Issue date Apr 12, 2011
- Ricoh Company Limited
- Tetsuya Senoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developer container, developer supplying device, and image forming...
- Patent number 7,835,673
- Issue date Nov 16, 2010
- Ricoh Company, Ltd.
- Hiroshi Hosokawa
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
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
Developer container, developer supplying device, and image forming...
- Patent number 7,697,870
- Issue date Apr 13, 2010
- Ricoh Company, Ltd.
- Hiroshi Hosokawa
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
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
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
Transfer device and image forming apparatus
- Patent number 7,672,605
- Issue date Mar 2, 2010
- Ricoh Company, Limited
- Shin Kayahara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method and apparatus for image forming capable of effectively perfo...
- Patent number 7,630,659
- Issue date Dec 8, 2009
- Ricoh Co., Ltd.
- Takeshi Uchitani
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Conductive member, and charging roller, process cartridge and image...
- Patent number 7,603,062
- Issue date Oct 13, 2009
- Ricoh Company, Ltd.
- Eiji Shimojo
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Charging member, process cartridge including the same, and image fo...
- Patent number 7,555,243
- Issue date Jun 30, 2009
- Ricoh Company, Ltd.
- Masahiko Satoh
- 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
Developer container, developer supplying device, and image forming...
- Patent number 7,519,317
- Issue date Apr 14, 2009
- Ricoh Company, Ltd.
- Hiroshi Hosokawa
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Cleaning device, process cartridge and image forming apparatus
- Patent number 7,493,075
- Issue date Feb 17, 2009
- Ricoh Company, Ltd.
- Takeshi Shintani
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developer container, developer supplying device, and image forming...
- Patent number 7,480,476
- Issue date Jan 20, 2009
- Ricoh Company, Ltd.
- Hiroshi Hosokawa
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
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
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
Image forming apparatus and process cartridge having a detachable u...
- Patent number 7,430,377
- Issue date Sep 30, 2008
- Ricoh Company, Limited
- Toshio Koike
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and process cartridge with a cleaner for re...
- Patent number 7,400,844
- Issue date Jul 15, 2008
- Ricoh Company Limited
- Eisaku Murakami
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus using a toner container and a process cartr...
- Patent number 7,398,038
- Issue date Jul 8, 2008
- Ricoh Company, Ltd.
- Kiyonori Tsuda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Imaging apparatus, and toner and process cartridge used in the imag...
- Patent number 7,386,257
- Issue date Jun 10, 2008
- Ricoh Company, Ltd.
- Toshio Koike
- 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

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
DEVELOPER CONTAINER, DEVELOPER SUPPLYING DEVICE, AND IMAGE FORMING...
- Publication number 20110249991
- Publication date Oct 13, 2011
- Hiroshi Hosokawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
LUBRICANT APPLYING DEVICE, IMAGE FORMING APPARATUS, PROCESS UNIT, A...
- Publication number 20110229232
- Publication date Sep 22, 2011
- Takeshi Kojima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20110164895
- Publication date Jul 7, 2011
- Satoru Ishikake
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20110058832
- Publication date Mar 10, 2011
- Hirokatsu SUZUKI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPER CONTAINER, DEVELOPER SUPPLYING DEVICE, AND IMAGE FORMING...
- Publication number 20110026973
- Publication date Feb 3, 2011
- Hiroshi Hosokawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20110013950
- Publication date Jan 20, 2011
- Masaharu FURUYA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
ELECTROPHOTOGRAPHIC IMAGE FORMING METHOD AND APPARATUS
- Publication number 20100278558
- Publication date Nov 4, 2010
- Shigekazu ENOKI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPER CONTAINER, DEVELOPER SUPPLYING DEVICE, AND IMAGE FORMING...
- Publication number 20090175660
- Publication date Jul 9, 2009
- Hiroshi Hosokawa
- 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
DEVELOPER CONTAINER, DEVELOPER SUPPLYING DEVICE, AND IMAGE FORMING...
- Publication number 20080286013
- Publication date Nov 20, 2008
- Hiroshi Hosokawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPMENT DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS...
- Publication number 20080226311
- Publication date Sep 18, 2008
- Tetsuya Senoh
- 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
CHARGING MEMBER, PROCESS CARTRIDGE INCLUDING THE SAME, AND IMAGE FO...
- Publication number 20080008499
- Publication date Jan 10, 2008
- Masahiko Satoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPER CONTAINER, DEVELOPER SUPPLYING DEVICE, AND IMAGE FORMING...
- Publication number 20080003021
- Publication date Jan 3, 2008
- Hiroshi Hosokawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
TRANSFER DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20070286628
- Publication date Dec 13, 2007
- Shin KAYAHARA
- 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
Developer container, developer supplying device, and image forming...
- Publication number 20070177905
- Publication date Aug 2, 2007
- Hiroshi Hosokawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE REMOVABLY MOUNTED THE...
- Publication number 20070166074
- Publication date Jul 19, 2007
- Hiroshi Hosokawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CLEANING DEVICE, PROCESS CARTRIDGE, IMAGE FORMING APPARATUS AND TONER
- Publication number 20070154246
- Publication date Jul 5, 2007
- Takeshi Shintani
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS & ASSOCIATED METHOD OF APPLYING A LUBRICANT
- Publication number 20070122217
- Publication date May 31, 2007
- Hiroyuki Nagashima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Conductive member, and charging roller, process cartridge and image...
- Publication number 20070065178
- Publication date Mar 22, 2007
- Eiji Shimojo
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Cleaning unit, process cartridge, image forming apparatus, and toner
- Publication number 20070036595
- Publication date Feb 15, 2007
- Ken Amemiya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Charging device, and process cartridge and image forming apparatus...
- Publication number 20070014588
- Publication date Jan 18, 2007
- Masato Yanagida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Method and apparatus for image forming capable of effectively perfo...
- Publication number 20060251438
- Publication date Nov 9, 2006
- Takeshi Uchitani
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Cleaning unit, process cartridge, image forming apparatus, and toner
- Publication number 20060216085
- Publication date Sep 28, 2006
- Eisaku Murakami
- 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
Imaging apparatus, and toner and process cartridge used in the imag...
- Publication number 20060177239
- Publication date Aug 10, 2006
- Toshio Koike
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Charging device, and process cartridge and image forming apparatus...
- Publication number 20060165431
- Publication date Jul 27, 2006
- Masato Yanagida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Masanori Kawasumi

Person

Patents Grantslast 30 patents

Electrophotographic image forming method and apparatus with a cover...

Image forming apparatus

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

Image forming apparatus

Image forming apparatus preventing gaps between a conveyor belt and...

Developer container, developer supplying device, and image forming...

Developer container, developer supplying device, and image forming...

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

Development device, process cartridge, and image forming apparatus...

Developer container, developer supplying device, and image forming...

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

Developer container, developer supplying device, and image forming...

Charging device including charging roller and cleaning roller

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

Transfer device and image forming apparatus

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

Conductive member, and charging roller, process cartridge and image...

Charging member, process cartridge including the same, and image fo...

Image forming apparatus and toner

Developer container, developer supplying device, and image forming...

Cleaning device, process cartridge and image forming apparatus

Developer container, developer supplying device, and image forming...

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

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

Image forming apparatus and process cartridge having a detachable u...

Image forming apparatus and process cartridge with a cleaner for re...

Image forming apparatus using a toner container and a process cartr...

Imaging apparatus, and toner and process cartridge used in the imag...

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

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

Patents Applicationslast 30 patents

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

DEVELOPER CONTAINER, DEVELOPER SUPPLYING DEVICE, AND IMAGE FORMING...

LUBRICANT APPLYING DEVICE, IMAGE FORMING APPARATUS, PROCESS UNIT, A...

IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

DEVELOPER CONTAINER, DEVELOPER SUPPLYING DEVICE, AND IMAGE FORMING...

IMAGE FORMING APPARATUS

ELECTROPHOTOGRAPHIC IMAGE FORMING METHOD AND APPARATUS

DEVELOPER CONTAINER, DEVELOPER SUPPLYING DEVICE, AND IMAGE FORMING...

CHARGING DEVICE INCLUDING CHARGING ROLLER AND CLEANING ROLLER

DEVELOPER CONTAINER, DEVELOPER SUPPLYING DEVICE, AND IMAGE FORMING...

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

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

CHARGING MEMBER, PROCESS CARTRIDGE INCLUDING THE SAME, AND IMAGE FO...

DEVELOPER CONTAINER, DEVELOPER SUPPLYING DEVICE, AND IMAGE FORMING...

TRANSFER DEVICE AND IMAGE FORMING APPARATUS

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

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

Developer container, developer supplying device, and image forming...

IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE REMOVABLY MOUNTED THE...

CLEANING DEVICE, PROCESS CARTRIDGE, IMAGE FORMING APPARATUS AND TONER

IMAGE FORMING APPARATUS & ASSOCIATED METHOD OF APPLYING A LUBRICANT

Conductive member, and charging roller, process cartridge and image...

Cleaning unit, process cartridge, image forming apparatus, and toner

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

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

Cleaning unit, process cartridge, image forming apparatus, and toner

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

Imaging apparatus, and toner and process cartridge used in the imag...

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