Hirotaka Hatta

Person

Kawasaki City, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Image forming apparatus including first and second bias voltage sup...
- Patent number 9,268,292
- Issue date Feb 23, 2016
- Ricoh Company, Ltd.
- Takeshi Kojima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cleaning unit, process cartridge incorporating same, and image form...
- Patent number 9,201,378
- Issue date Dec 1, 2015
- Ricoh Company, Ltd.
- Akira Asaoka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 9,195,204
- Issue date Nov 24, 2015
- Ricoh Company, Ltd.
- Yusuke Ishizuka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cleaning device, process cartridge, and image forming apparatus
- Patent number 9,170,554
- Issue date Oct 27, 2015
- Ricoh Company, Ltd.
- Takeshi Kojima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Charger positioning adjuster and image forming apparatus incorporat...
- Patent number 9,141,020
- Issue date Sep 22, 2015
- Ricoh Company, Ltd.
- Hiroyuki Uenishi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and process cartridge
- Patent number 8,396,383
- Issue date Mar 12, 2013
- Ricoh Company, Ltd.
- Kenji Honjoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus, process cartridge, and lubricant applicator
- Patent number 7,953,362
- Issue date May 31, 2011
- Ricoh Company, Ltd.
- Yuji Arai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 7,603,053
- Issue date Oct 13, 2009
- Ricoh Company, Ltd.
- Hiroshi Hosokawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus conveniently upgradable to a duplex image f...
- Patent number 6,546,228
- Issue date Apr 8, 2003
- Ricoh Company, Ltd.
- Takeshi Motohashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cleaner and toner magazine for electrophotographic apparatus
- Patent number 5,873,021
- Issue date Feb 16, 1999
- Ricoh Company, Ltd.
- Hirotaka Hatta
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner magazine and cleaner for an electrophotographic apparatus
- Patent number 5,852,762
- Issue date Dec 22, 1998
- Ricoh Company, Ltd.
- Hirotaka Hatta
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cleaner and toner magazine for electrophotographic apparatus
- Patent number 5,697,038
- Issue date Dec 9, 1997
- Ricoh Company, Ltd.
- Hirotaka Hatta
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cleaner and toner magazine for electrophotographic apparatus
- Patent number 5,555,081
- Issue date Sep 10, 1996
- Ricoh Company, Ltd.
- Hirotaka Hatta
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
IMAGE FORMING APPARATUS AND COATING-FILM ADJUSTING METHOD
- Publication number 20240393728
- Publication date Nov 28, 2024
- RICOH COMPANY, LTD.
- Hideki KIMURA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20240255890
- Publication date Aug 1, 2024
- RICOH COMPANY, LTD.
- Yutaka GOTO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20140314461
- Publication date Oct 23, 2014
- Yusuke ISHIZUKA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CHARGER POSITIONING ADJUSTER AND IMAGE FORMING APPARATUS INCORPORAT...
- Publication number 20140270847
- Publication date Sep 18, 2014
- RICOH COMPANY, LTD.
- Hiroyuki UENISHI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CLEANING UNIT, PROCESS CARTRIDGE INCORPORATING SAME, AND IMAGE FORM...
- Publication number 20140233997
- Publication date Aug 21, 2014
- Akira ASAOKA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20140126942
- Publication date May 8, 2014
- Takeshi KOJIMA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CLEANING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS
- Publication number 20140093295
- Publication date Apr 3, 2014
- Takeshi KOJIMA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus and process cartridge
- Publication number 20100247123
- Publication date Sep 30, 2010
- Ricoh Company, Ltd.
- Kenji Honjoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20070280725
- Publication date Dec 6, 2007
- Hiroshi Hosokawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS, PROCESS CARTRIDGE, AND LUBRICANT APPLICATOR
- Publication number 20070209877
- Publication date Sep 13, 2007
- Yuji Arai
- 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

Hirotaka Hatta

Person

Patents Grantslast 30 patents

Image forming apparatus including first and second bias voltage sup...

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

Image forming apparatus

Cleaning device, process cartridge, and image forming apparatus

Charger positioning adjuster and image forming apparatus incorporat...

Image forming apparatus and process cartridge

Image forming apparatus, process cartridge, and lubricant applicator

Image forming apparatus

Image forming apparatus conveniently upgradable to a duplex image f...

Cleaner and toner magazine for electrophotographic apparatus

Toner magazine and cleaner for an electrophotographic apparatus

Cleaner and toner magazine for electrophotographic apparatus

Cleaner and toner magazine for electrophotographic apparatus

Patents Applicationslast 30 patents

IMAGE FORMING APPARATUS AND COATING-FILM ADJUSTING METHOD

IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

CHARGER POSITIONING ADJUSTER AND IMAGE FORMING APPARATUS INCORPORAT...

CLEANING UNIT, PROCESS CARTRIDGE INCORPORATING SAME, AND IMAGE FORM...

IMAGE FORMING APPARATUS

CLEANING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS

Image forming apparatus and process cartridge

IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS, PROCESS CARTRIDGE, AND LUBRICANT APPLICATOR

IMAGE FORMING APPARATUS & ASSOCIATED METHOD OF APPLYING A LUBRICANT