Tetsushi SAKUMA

Person

Chiba, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Image forming apparatus and process cartridge
- Patent number 9,360,824
- Issue date Jun 7, 2016
- Ricoh Company, Ltd.
- Tomohiro Fukao
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 9,213,270
- Issue date Dec 15, 2015
- Ricoh Company, Ltd.
- Tetsushi Sakuma
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Transfer device and attachment of the transfer device to a cover of...
- Patent number 9,164,470
- Issue date Oct 20, 2015
- Ricoh Company, Limited
- Takeshi Sakashita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner collection unit and image forming apparatus incorporating same
- Patent number 9,031,450
- Issue date May 12, 2015
- Ricoh Company, Ltd.
- Tetsushi Sakuma
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Retainer device and image forming apparatus incorporating same
- Patent number 9,031,453
- Issue date May 12, 2015
- Ricoh Company, Ltd.
- Tetsushi Sakuma
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Powder transport device and image forming apparatus incorporating same
- Patent number 8,983,357
- Issue date Mar 17, 2015
- Ricoh Company, Ltd.
- Takeshi Sakashita
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Belt device and image forming apparatus
- Patent number 8,971,752
- Issue date Mar 3, 2015
- Ricoh Company, Limited
- Yuuji Meguro
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Belt unit and image forming apparatus using the same
- Patent number 7,734,236
- Issue date Jun 8, 2010
- Ricoh Company, Ltd.
- Tetsushi Sakuma
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20170248896
- Publication date Aug 31, 2017
- Naoki NAKATAKE
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE
- Publication number 20160033924
- Publication date Feb 4, 2016
- Tomohiro FUKAO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
TONER COLLECTION UNIT AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20140147165
- Publication date May 29, 2014
- Tetsushi SAKUMA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
TRANSFER DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20140079434
- Publication date Mar 20, 2014
- Takeshi SAKASHITA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
RETAINER DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20140010575
- Publication date Jan 9, 2014
- Tetsushi SAKUMA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
TONER, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE
- Publication number 20130344427
- Publication date Dec 26, 2013
- Takuya Kadota
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20130051854
- Publication date Feb 28, 2013
- RICOH COMPANY, LTD.
- Tetsushi SAKUMA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
BELT DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20130011158
- Publication date Jan 10, 2013
- Yuuji MEGURO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
POWDER TRANSPORT DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20120237268
- Publication date Sep 20, 2012
- Takeshi SAKASHITA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Belt unit and image forming apparatus using the same
- Publication number 20090087233
- Publication date Apr 2, 2009
- Ricoh Printing Systems, Ltd.
- Tetsushi Sakuma
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Tetsushi SAKUMA

Person

Patents Grantslast 30 patents

Image forming apparatus and process cartridge

Image forming apparatus

Transfer device and attachment of the transfer device to a cover of...

Toner collection unit and image forming apparatus incorporating same

Retainer device and image forming apparatus incorporating same

Powder transport device and image forming apparatus incorporating same

Belt device and image forming apparatus

Belt unit and image forming apparatus using the same

Patents Applicationslast 30 patents

IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE

TONER COLLECTION UNIT AND IMAGE FORMING APPARATUS INCORPORATING SAME

TRANSFER DEVICE AND IMAGE FORMING APPARATUS

RETAINER DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME

TONER, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE

IMAGE FORMING APPARATUS

BELT DEVICE AND IMAGE FORMING APPARATUS

POWDER TRANSPORT DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME

Belt unit and image forming apparatus using the same