Hiroaki Okamoto

Person

Zama-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Developing device and image forming apparatus
- Patent number 10,317,839
- Issue date Jun 11, 2019
- Ricoh Company, Ltd.
- Shinji Tamaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device, and image forming apparatus and process cartridg...
- Patent number 10,126,682
- Issue date Nov 13, 2018
- Ricoh Company, Ltd.
- Hiroaki Okamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device, and process cartridge and image forming apparatu...
- Patent number 9,658,576
- Issue date May 23, 2017
- Ricoh Company, Ltd.
- Hideki Kimura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device, process cartridge, and image forming apparatus i...
- Patent number 9,529,297
- Issue date Dec 27, 2016
- Ricoh Company, Ltd.
- Hiroaki Okamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus with removable unit and a connectable devic...
- Patent number 9,507,313
- Issue date Nov 29, 2016
- Ricoh Company, Ltd.
- Junichi Terai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing unit, process cartridge, and image forming apparatus
- Patent number 9,395,652
- Issue date Jul 19, 2016
- Ricoh Company, Ltd.
- Hiroshi Kikuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner bottle driving device control method and image forming apparatus
- Patent number 9,360,816
- Issue date Jun 7, 2016
- Ricoh Company, Ltd.
- Hiroyuki Mabuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Powder supply device and image forming apparatus incorporating same
- Patent number 9,323,176
- Issue date Apr 26, 2016
- Ricoh Company, Ltd.
- Junichi Terai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Development device and image forming apparatus incorporating same
- Patent number 9,046,821
- Issue date Jun 2, 2015
- Ricoh Company, Ltd.
- Tomoya Ohmura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Development device, and process cartridge and image forming apparat...
- Patent number 8,989,621
- Issue date Mar 24, 2015
- Ricoh Company, Ltd.
- Yoshio Hattori
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Development device including a removable seal to seal a supplied-de...
- Patent number 8,971,769
- Issue date Mar 3, 2015
- Ricoh Company, Limited
- Yasuo Miyoshi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device, process cartridge, and image-forming apparatus
- Patent number 8,787,802
- Issue date Jul 22, 2014
- Ricoh Company, Ltd.
- Yoshio Hattori
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Development device including a removable seal to seal a supplied-de...
- Patent number 8,750,752
- Issue date Jun 10, 2014
- Ricoh Company, Limited
- Yasuo Miyoshi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Development device, process cartridge, and image forming apparatus...
- Patent number 8,649,714
- Issue date Feb 11, 2014
- Ricoh Company, Ltd.
- Norio Kudo
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Development device, and image forming apparatus and process cartrid...
- Patent number 8,626,034
- Issue date Jan 7, 2014
- Ricoh Company, Ltd.
- Toshio Koike
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Development device, process cartridge, and image forming apparatus
- Patent number 8,571,449
- Issue date Oct 29, 2013
- Ricoh Company, Limited
- Yasuo Miyoshi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Development device, process cartridge including same, and image for...
- Patent number 8,433,224
- Issue date Apr 30, 2013
- Ricoh Company, Limited
- Yoshihiro Fujiwara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Development device and image forming apparatus
- Patent number 8,326,184
- Issue date Dec 4, 2012
- Ricoh Company, Limited
- Norio Kudo
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
POWDER AMOUNT DETECTOR, POWDER SUPPLY DEVICE, AND IMAGE FORMING APP...
- Publication number 20210033997
- Publication date Feb 4, 2021
- Tatsuya Kubo
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
POWDER COLLECTION DEVICE AND IMAGE FORMING APPARATUS INCORPORATING...
- Publication number 20210034007
- Publication date Feb 4, 2021
- Shuntaroh Tamaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
POWDER AMOUNT DETECTOR, POWDER SUPPLY DEVICE, AND IMAGE FORMING APP...
- Publication number 20200033752
- Publication date Jan 30, 2020
- Tatsuya Kubo
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
POWDER SUPPLY DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20200033751
- Publication date Jan 30, 2020
- Junichi MATSUMOTO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20180348698
- Publication date Dec 6, 2018
- RICOH COMPANY, LTD.
- Shinji TAMAKI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE, AND IMAGE FORMING APPARATUS AND PROCESS CARTRIDG...
- Publication number 20180120737
- Publication date May 3, 2018
- RICOH COMPANY, LTD.
- Hiroaki OKAMOTO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS I...
- Publication number 20160202630
- Publication date Jul 14, 2016
- Hiroaki OKAMOTO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20160202660
- Publication date Jul 14, 2016
- Junichi TERAI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE, AND PROCESS CARTRIDGE AND IMAGE FORMING APPARATU...
- Publication number 20160170329
- Publication date Jun 16, 2016
- Hideki KIMURA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
TONER BOTTLE DRIVING DEVICE CONTROL METHOD AND IMAGE FORMING APPARATUS
- Publication number 20160170356
- Publication date Jun 16, 2016
- Hiroyuki MABUCHI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING UNIT, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS
- Publication number 20160070208
- Publication date Mar 10, 2016
- RICOH COMPANY, LTD.
- Hiroshi KIKUCHI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
POWDER SUPPLY DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20160041498
- Publication date Feb 11, 2016
- Junichi TERAI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPMENT DEVICE INCLUDING A REMOVABLE SEAL TO SEAL A SUPPLIED-DE...
- Publication number 20140233984
- Publication date Aug 21, 2014
- Yasuo MIYOSHI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPMENT DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20140112687
- Publication date Apr 24, 2014
- Tomoya Ohmura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPMENT DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS
- Publication number 20140016960
- Publication date Jan 16, 2014
- Yasuo MIYOSHI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPMENT DEVICE, AND PROCESS CARTRIDGE AND IMAGE FORMING APPARAT...
- Publication number 20130034368
- Publication date Feb 7, 2013
- RICOH COMPANY, LTD.
- Yoshio Hattori
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPMENT DEVICE, AND IMAGE FORMING APPARATUS AND PROCESS CARTRID...
- Publication number 20120219326
- Publication date Aug 30, 2012
- RICOH COMPANY, LTD.
- Toshio Koike
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE-FORMING APPARATUS
- Publication number 20120163874
- Publication date Jun 28, 2012
- Yoshio Hattori
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPMENT DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS...
- Publication number 20120051793
- Publication date Mar 1, 2012
- Norio Kudo
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPMENT DEVICE, PROCESS CARTRIDGE INCLUDING SAME, AND IMAGE FOR...
- Publication number 20110150525
- Publication date Jun 23, 2011
- Yoshihiro FUJIWARA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPMENT DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20110008073
- Publication date Jan 13, 2011
- Norio KUDO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPMENT DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS
- Publication number 20100202805
- Publication date Aug 12, 2010
- Yasuo MIYOSHI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Hiroaki Okamoto

Person

Patents Grantslast 30 patents

Developing device and image forming apparatus

Developing device, and image forming apparatus and process cartridg...

Developing device, and process cartridge and image forming apparatu...

Developing device, process cartridge, and image forming apparatus i...

Image forming apparatus with removable unit and a connectable devic...

Developing unit, process cartridge, and image forming apparatus

Toner bottle driving device control method and image forming apparatus

Powder supply device and image forming apparatus incorporating same

Development device and image forming apparatus incorporating same

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

Development device including a removable seal to seal a supplied-de...

Developing device, process cartridge, and image-forming apparatus

Development device including a removable seal to seal a supplied-de...

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

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

Development device, process cartridge, and image forming apparatus

Development device, process cartridge including same, and image for...

Development device and image forming apparatus

Patents Applicationslast 30 patents

POWDER AMOUNT DETECTOR, POWDER SUPPLY DEVICE, AND IMAGE FORMING APP...

POWDER COLLECTION DEVICE AND IMAGE FORMING APPARATUS INCORPORATING...

POWDER AMOUNT DETECTOR, POWDER SUPPLY DEVICE, AND IMAGE FORMING APP...

POWDER SUPPLY DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME

DEVELOPING DEVICE AND IMAGE FORMING APPARATUS

DEVELOPING DEVICE, AND IMAGE FORMING APPARATUS AND PROCESS CARTRIDG...

DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS I...

IMAGE FORMING APPARATUS

DEVELOPING DEVICE, AND PROCESS CARTRIDGE AND IMAGE FORMING APPARATU...

TONER BOTTLE DRIVING DEVICE CONTROL METHOD AND IMAGE FORMING APPARATUS

DEVELOPING UNIT, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS

POWDER SUPPLY DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME

DEVELOPMENT DEVICE INCLUDING A REMOVABLE SEAL TO SEAL A SUPPLIED-DE...

DEVELOPMENT DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME

DEVELOPMENT DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS

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

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

DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE-FORMING APPARATUS

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

DEVELOPMENT DEVICE, PROCESS CARTRIDGE INCLUDING SAME, AND IMAGE FOR...

DEVELOPMENT DEVICE AND IMAGE FORMING APPARATUS

DEVELOPMENT DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS