Hiroyoshi Haga

Person

Kawaguchi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Image forming apparatus with a controller to set transfer bias
- Patent number 9,864,307
- Issue date Jan 9, 2018
- Ricoh Company, Ltd.
- Kenji Sengoku
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and transfer bias control
- Patent number 9,835,987
- Issue date Dec 5, 2017
- Ricoh Company, Ltd.
- Kenji Sugiura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 9,817,341
- Issue date Nov 14, 2017
- Ricoh Company, Ltd.
- Tatsuya Ohsugi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Belt device and image forming apparatus including same
- Patent number 9,811,036
- Issue date Nov 7, 2017
- Ricoh Company, Ltd.
- Junpei Fujita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 9,811,046
- Issue date Nov 7, 2017
- Ricoh Company, Ltd.
- Yuuji Wada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 9,766,575
- Issue date Sep 19, 2017
- Ricoh Company, Ltd.
- Tatsuya Ohsugi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus that adjusts a transfer bias according to s...
- Patent number 9,740,156
- Issue date Aug 22, 2017
- Ricoh Company, Ltd.
- Yuuji Wada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 9,720,355
- Issue date Aug 1, 2017
- Ricoh Company, Ltd.
- Tatsuya Ohsugi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cleaning device and image forming apparatus incorporating same
- Patent number 9,696,662
- Issue date Jul 4, 2017
- Ricoh Company, Ltd.
- Kazuki Yogosawa
- B08 - CLEANING
Information Patent Grant
Image forming apparatus
- Patent number 9,645,530
- Issue date May 9, 2017
- Ricoh Company, Ltd.
- Naoto Kochi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus controlling transfer bias based on temperat...
- Patent number 9,632,461
- Issue date Apr 25, 2017
- Ricoh Company, Ltd.
- Kenji Sugiura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cleaning device and image forming apparatus incorporating same
- Patent number 9,519,257
- Issue date Dec 13, 2016
- Ricoh Company, Ltd.
- Kenji Sengoku
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 9,459,564
- Issue date Oct 4, 2016
- Ricoh Company, Ltd.
- Tatsuya Ohsugi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 9,395,658
- Issue date Jul 19, 2016
- Ricoh Company, Ltd.
- Yuuji Wada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus with a controller to set transfer bias
- Patent number 9,323,170
- Issue date Apr 26, 2016
- Ricoh Company, Ltd.
- Kenji Sengoku
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Transfer device and image forming apparatus
- Patent number 9,152,070
- Issue date Oct 6, 2015
- Ricoh Company, Ltd.
- Hiromi Ogiyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 9,075,383
- Issue date Jul 7, 2015
- Ricoh Company, Ltd.
- Kenji Sengoku
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 9,057,991
- Issue date Jun 16, 2015
- Ricoh Company, Ltd.
- Yasunobu Shimizu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus, image forming system, and transfer method
- Patent number 9,037,022
- Issue date May 19, 2015
- Ricoh Company, Limited
- Tomokazu Takeuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 9,031,436
- Issue date May 12, 2015
- Ricoh Company, Ltd.
- Yasunobu Shimizu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus which uses an AC voltage and/or a DC voltag...
- Patent number 8,977,153
- Issue date Mar 10, 2015
- Ricoh Company, Ltd.
- Hiromi Ogiyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Power supply module and image forming apparatus including same
- Patent number 8,948,644
- Issue date Feb 3, 2015
- Ricoh Company, Ltd.
- Junpei Fujita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus, system, and method using a superimposed vo...
- Patent number 8,929,786
- Issue date Jan 6, 2015
- Ricoh Company, Limited
- Tomokazu Takeuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Power supply module and image forming apparatus including same
- Patent number 8,891,996
- Issue date Nov 18, 2014
- Ricoh Company, Ltd.
- Junpei Fujita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image transfer device and image forming apparatus incorporating same
- Patent number 8,824,941
- Issue date Sep 2, 2014
- Ricoh Company, Ltd.
- Yasunobu Shimizu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus, image forming system, and transfer method
- Patent number 8,805,223
- Issue date Aug 12, 2014
- Ricoh Company, Limited
- Tomokazu Takeuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 8,682,231
- Issue date Mar 25, 2014
- Ricoh Company, Ltd.
- Kenji Sengoku
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Apparatus including a re-transfer unit to re-transfer a recording m...
- Patent number 8,270,856
- Issue date Sep 18, 2012
- Ricoh Company, Limited
- Takehide Mizutani
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cleaning device and image forming apparatus including the cleaning...
- Patent number 7,277,657
- Issue date Oct 2, 2007
- Ricoh Company, Ltd.
- Satoru Uchida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having a protection unit to protect a sensi...
- Patent number 5,991,570
- Issue date Nov 23, 1999
- Ricoh Company, Ltd.
- Hiroyoshi Haga
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
POWDER CONTAINER, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS
- Publication number 20200183301
- Publication date Jun 11, 2020
- Kuniyori TAKANO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
BELT DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME
- Publication number 20170090374
- Publication date Mar 30, 2017
- Junpei FUJITA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20170003630
- Publication date Jan 5, 2017
- Tatsuya OHSUGI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20160334739
- Publication date Nov 17, 2016
- Tatsuya OHSUGI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20160334738
- Publication date Nov 17, 2016
- Naoto KOCHI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20160306317
- Publication date Oct 20, 2016
- YUUJI WADA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20160274503
- Publication date Sep 22, 2016
- Kenji SUGIURA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20160274504
- Publication date Sep 22, 2016
- Yuuji WADA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20160274505
- Publication date Sep 22, 2016
- Tatsuya OHSUGI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CLEANING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20160216647
- Publication date Jul 28, 2016
- Kazuki Yogosawa
- B08 - CLEANING
Information Patent Application
CLEANING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20160216682
- Publication date Jul 28, 2016
- Kenji SENGOKU
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS WITH A CONTROLLER TO SET TRANSFER BIAS
- Publication number 20160202644
- Publication date Jul 14, 2016
- Kenji SENGOKU
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20160161888
- Publication date Jun 9, 2016
- Yuuji WADA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20160161887
- Publication date Jun 9, 2016
- Kenji SUGIURA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20160109832
- Publication date Apr 21, 2016
- Tatsuya OHSUGI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS, IMAGE FORMING SYSTEM, AND TRANSFER METHOD
- Publication number 20140341605
- Publication date Nov 20, 2014
- Tomokazu TAKEUCHI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20140147182
- Publication date May 29, 2014
- Kenji SENGOKU
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20130136477
- Publication date May 30, 2013
- Hiromi OGIYAMA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE TRANSFER DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20130094870
- Publication date Apr 18, 2013
- Yasunobu Shimizu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
POWER SUPPLY MODULE AND IMAGE FORMING APPARATUS INCLUDING SAME
- Publication number 20130016989
- Publication date Jan 17, 2013
- Junpei FUJITA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
TRANSFER DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20130011155
- Publication date Jan 10, 2013
- Hiromi Ogiyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20130004190
- Publication date Jan 3, 2013
- Kenji SENGOKU
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
POWER SUPPLY MODULE AND IMAGE FORMING APPARATUS INCLUDING SAME
- Publication number 20120328320
- Publication date Dec 27, 2012
- Junpei FUJITA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS, IMAGE FORMING SYSTEM, AND TRANSFER METHOD
- Publication number 20120328321
- Publication date Dec 27, 2012
- Tomokazu TAKEUCHI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS, IMAGE FORMING SYSTEM, AND TRANSFER METHOD
- Publication number 20120328315
- Publication date Dec 27, 2012
- Tomokazu TAKEUCHI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20120315058
- Publication date Dec 13, 2012
- Yasunobu SHIMIZU
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20120308250
- Publication date Dec 6, 2012
- Yasunobu SHIMIZU
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20120237271
- Publication date Sep 20, 2012
- Kenji SENGOKU
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Apparatus and method of image forming
- Publication number 20100040386
- Publication date Feb 18, 2010
- Takahide Mizutani
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Cleaning device and image forming apparatus including the cleaning...
- Publication number 20050047816
- Publication date Mar 3, 2005
- Satoru Uchida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Hiroyoshi Haga

Person

Patents Grantslast 30 patents

Image forming apparatus with a controller to set transfer bias

Image forming apparatus and transfer bias control

Image forming apparatus

Belt device and image forming apparatus including same

Image forming apparatus

Image forming apparatus

Image forming apparatus that adjusts a transfer bias according to s...

Image forming apparatus

Cleaning device and image forming apparatus incorporating same

Image forming apparatus

Image forming apparatus controlling transfer bias based on temperat...

Cleaning device and image forming apparatus incorporating same

Image forming apparatus

Image forming apparatus

Image forming apparatus with a controller to set transfer bias

Transfer device and image forming apparatus

Image forming apparatus

Image forming apparatus

Image forming apparatus, image forming system, and transfer method

Image forming apparatus

Image forming apparatus which uses an AC voltage and/or a DC voltag...

Power supply module and image forming apparatus including same

Image forming apparatus, system, and method using a superimposed vo...

Power supply module and image forming apparatus including same

Image transfer device and image forming apparatus incorporating same

Image forming apparatus, image forming system, and transfer method

Image forming apparatus

Apparatus including a re-transfer unit to re-transfer a recording m...

Cleaning device and image forming apparatus including the cleaning...

Image forming apparatus having a protection unit to protect a sensi...

Patents Applicationslast 30 patents

POWDER CONTAINER, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS

BELT DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME

IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

CLEANING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME

CLEANING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME

IMAGE FORMING APPARATUS WITH A CONTROLLER TO SET TRANSFER BIAS

IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS, IMAGE FORMING SYSTEM, AND TRANSFER METHOD

IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

IMAGE TRANSFER DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME

POWER SUPPLY MODULE AND IMAGE FORMING APPARATUS INCLUDING SAME

TRANSFER DEVICE AND IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

POWER SUPPLY MODULE AND IMAGE FORMING APPARATUS INCLUDING SAME

IMAGE FORMING APPARATUS, IMAGE FORMING SYSTEM, AND TRANSFER METHOD

IMAGE FORMING APPARATUS, IMAGE FORMING SYSTEM, AND TRANSFER METHOD

IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

Apparatus and method of image forming

Cleaning device and image forming apparatus including the cleaning...