Yuki Oshikawa

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Circuit board unit, detachable unit, and image forming apparatus
- Patent number 12,167,537
- Issue date Dec 10, 2024
- Ricoh Company, Ltd.
- Yuki Oshikawa
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Circuit board unit, attachment unit, and image forming apparatus
- Patent number 12,130,565
- Issue date Oct 29, 2024
- Ricoh Company, Ltd.
- Yuki Oshikawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Toner container including a rotatable container body, a gear, and a...
- Patent number 11,754,947
- Issue date Sep 12, 2023
- Ricoh Company, Ltd.
- Hideo Yoshizawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device and image forming apparatus incorporating same
- Patent number 11,640,124
- Issue date May 2, 2023
- Ricoh Company, Ltd.
- Kentarou Matsumoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Powder container, developing device, and image forming apparatus wi...
- Patent number 11,573,506
- Issue date Feb 7, 2023
- Ricoh Company, Ltd.
- Ryusuke Mase
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device, process cartridge, and image forming apparatus
- Patent number 11,256,194
- Issue date Feb 22, 2022
- Ricoh Company, Ltd.
- Yuuki Tsuchiya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device including a conveyor with a space between blades...
- Patent number 11,163,246
- Issue date Nov 2, 2021
- Ricoh Company, Ltd.
- Tatsuya Ohhira
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developer container, developing device, and image forming apparatus
- Patent number 11,112,731
- Issue date Sep 7, 2021
- Ricoh Company, Ltd.
- Naohiro Kawashima
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Image forming apparatus including control circuitry to execute a wa...
- Patent number 11,086,251
- Issue date Aug 10, 2021
- Ricoh Company, Ltd.
- Ryusuke Mase
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device, process cartridge, and image forming apparatus
- Patent number 10,705,484
- Issue date Jul 7, 2020
- Ricoh Company, Ltd.
- Yuki Oshikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Conveying device and image forming apparatus incorporating the conv...
- Patent number 10,444,664
- Issue date Oct 15, 2019
- Ricoh Company, Ltd.
- Yuki Oshikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device and image forming apparatus incorporating same
- Patent number 9,772,579
- Issue date Sep 26, 2017
- Ricoh Company, Ltd.
- Yuki Oshikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device and image forming apparatus incorporating same
- Patent number 9,625,851
- Issue date Apr 18, 2017
- Ricoh Company, Ltd.
- Yuki Oshikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device, image forming apparatus, and process cartridge
- Patent number 9,405,223
- Issue date Aug 2, 2016
- Ricoh Company, Ltd.
- Yuki Oshikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Communication connector and image forming apparatus
- Patent number 9,354,586
- Issue date May 31, 2016
- Ricoh Company, Ltd.
- Yuki Oshikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device and image forming apparatus
- Patent number 9,310,715
- Issue date Apr 12, 2016
- Ricoh Company, Ltd.
- Yoshio Hattori
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device and image forming apparatus incorporating same
- Patent number 9,176,430
- Issue date Nov 3, 2015
- Ricoh Company, Ltd.
- Hideo Yoshizawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Powder container and image forming apparatus incorporating same
- Patent number 9,170,530
- Issue date Oct 27, 2015
- Ricoh Company, Ltd.
- Yuki Oshikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Powder container, powder supply assembly, and image forming apparat...
- Patent number 9,134,697
- Issue date Sep 15, 2015
- Ricoh Company, Ltd.
- Yuki Oshikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Powder storage container and image forming apparatus in which a gri...
- Patent number 9,116,468
- Issue date Aug 25, 2015
- Ricoh Company, Ltd.
- Seiji Terazawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Driving force transmission mechanism and image forming apparatus
- Patent number 9,109,633
- Issue date Aug 18, 2015
- Ricoh Company, Limited
- Hideo Yoshizawa
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Image forming apparatus incorporating developing device with first...
- Patent number 8,923,726
- Issue date Dec 30, 2014
- Ricoh Company, Ltd.
- Kiyonori Tsuda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Imaging device, image forming apparatus, and process cartridge
- Patent number 8,843,015
- Issue date Sep 23, 2014
- Ricoh Company, Limited
- Kohichi Utsunomiya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Development device and image forming apparatus incorporating same
- Patent number 8,843,019
- Issue date Sep 23, 2014
- Ricoh Company, Ltd.
- Hideo Yoshizawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Powder container, powder supply assembly, and image forming apparat...
- Patent number 8,755,721
- Issue date Jun 17, 2014
- Ricoh Company, Ltd.
- Yuki Oshikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Powder container, powder supply assembly, and image forming apparat...
- Patent number 8,600,269
- Issue date Dec 3, 2013
- Ricoh Company, Ltd.
- Yuki Oshikawa
Information Patent Grant
Powder container
- Patent number D667047
- Issue date Sep 11, 2012
- Ricoh Company, Ltd.
- Yuki Oshikawa
- D18 - Printing and office machinery
Information Patent Grant
Toner supply device and image forming apparatus that prevents toner...
- Patent number 8,126,373
- Issue date Feb 28, 2012
- Ricoh Company Limited
- Kohichi Utsunomiya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and developer supply method therefor
- Patent number 8,121,498
- Issue date Feb 21, 2012
- Ricoh Company, Limited
- Mugijiro Uno
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and developer replenishing method
- Patent number 8,086,117
- Issue date Dec 27, 2011
- Ricoh Company, Ltd.
- Mugijirou Uno
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
TONER CONTAINER AND IMAGE FORMING APPARATUS
- Publication number 20240231257
- Publication date Jul 11, 2024
- Hideo YOSHIZAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
TONER CONTAINER AND IMAGE FORMING APPARATUS
- Publication number 20240134301
- Publication date Apr 25, 2024
- Hideo YOSHIZAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20220317595
- Publication date Oct 6, 2022
- Hideo YOSHIZAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CIRCUIT BOARD UNIT, DETACHABLE UNIT, AND IMAGE FORMING APPARATUS
- Publication number 20220095459
- Publication date Mar 24, 2022
- Ricoh Company, Ltd.
- Yuki OSHIKAWA
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
CIRCUIT BOARD UNIT, ATTACHMENT UNIT, AND IMAGE FORMING APPARATUS
- Publication number 20220088950
- Publication date Mar 24, 2022
- Ricoh Company, Ltd.
- Yuki OSHIKAWA
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
DEVELOPING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20220082956
- Publication date Mar 17, 2022
- Ricoh Company, Ltd.
- Kentarou MATSUMOTO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
POWDER CONTAINER, DEVELOPING DEVICE, AND IMAGE FORMING APPARATUS
- Publication number 20220043370
- Publication date Feb 10, 2022
- Ricoh Company, Ltd.
- Ryusuke MASE
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME
- Publication number 20210088938
- Publication date Mar 25, 2021
- Ricoh Company, Ltd.
- Tatsuya OHHIRA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS
- Publication number 20210041806
- Publication date Feb 11, 2021
- Yuuki TSUCHIYA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPER CONTAINER, DEVELOPING DEVICE, AND IMAGE FORMING APPARATUS
- Publication number 20200174400
- Publication date Jun 4, 2020
- Naohiro KAWASHIMA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20200117119
- Publication date Apr 16, 2020
- Ricoh Company, Ltd.
- Ryusuke MASE
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS
- Publication number 20200103824
- Publication date Apr 2, 2020
- Ricoh Company, Ltd.
- Yuki OSHIKAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CONVEYING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING THE CONV...
- Publication number 20190018343
- Publication date Jan 17, 2019
- RICOH COMPANY, LTD.
- Yuki OSHIKAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20170108795
- Publication date Apr 20, 2017
- Yuki OSHIKAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20160238966
- Publication date Aug 18, 2016
- Yuki OSHIKAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE
- Publication number 20150362861
- Publication date Dec 17, 2015
- Yuki OSHIKAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
COMMUNICATION CONNECTOR AND IMAGE FORMING APPARATUS
- Publication number 20150118890
- Publication date Apr 30, 2015
- Yuki OSHIKAWA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
DEVELOPING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20140270838
- Publication date Sep 18, 2014
- Hideo Yoshizawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
POWDER CONTAINER, POWDER SUPPLY ASSEMBLY, AND IMAGE FORMING APPARATUS
- Publication number 20140248060
- Publication date Sep 4, 2014
- Yuki OSHIKAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20140169827
- Publication date Jun 19, 2014
- RICOH COMPANY, LTD.
- Yoshio Hattori
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
POWDER STORAGE CONTAINER AND IMAGE FORMING APPARATUS
- Publication number 20140029973
- Publication date Jan 30, 2014
- Seiji Terazawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPMENT DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20120269553
- Publication date Oct 25, 2012
- Hideo Yoshizawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPMENT DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS...
- Publication number 20120269544
- Publication date Oct 25, 2012
- Kiyonori Tsuda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGING DEVICE, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE
- Publication number 20120237249
- Publication date Sep 20, 2012
- Kohichi UTSUNOMIYA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DRIVING FORCE TRANSMISSION MECHANISM AND IMAGE FORMING APPARATUS
- Publication number 20120230738
- Publication date Sep 13, 2012
- Hideo YOSHIZAWA
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
POWDER CONTAINER AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20110305485
- Publication date Dec 15, 2011
- Yuki OSHIKAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
POWDER CONTAINER, POWDER SUPPLY ASSEMBLY, AND IMAGE FORMING APPARATUS
- Publication number 20110243579
- Publication date Oct 6, 2011
- Yuki OSHIKAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPER SUPPLY SYSTEM AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20090263164
- Publication date Oct 22, 2009
- Maiko Koeda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS AND DEVELOPER REPLENISHING METHOD
- Publication number 20090110425
- Publication date Apr 30, 2009
- Mugijirou UNO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS AND DEVELOPER SUPPLY METHOD THEREFOR
- Publication number 20090103935
- Publication date Apr 23, 2009
- Mugijiro Uno
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Yuki Oshikawa

Person

Patents Grantslast 30 patents

Circuit board unit, detachable unit, and image forming apparatus

Circuit board unit, attachment unit, and image forming apparatus

Toner container including a rotatable container body, a gear, and a...

Developing device and image forming apparatus incorporating same

Powder container, developing device, and image forming apparatus wi...

Developing device, process cartridge, and image forming apparatus

Developing device including a conveyor with a space between blades...

Developer container, developing device, and image forming apparatus

Image forming apparatus including control circuitry to execute a wa...

Developing device, process cartridge, and image forming apparatus

Conveying device and image forming apparatus incorporating the conv...

Developing device and image forming apparatus incorporating same

Developing device and image forming apparatus incorporating same

Developing device, image forming apparatus, and process cartridge

Communication connector and image forming apparatus

Developing device and image forming apparatus

Developing device and image forming apparatus incorporating same

Powder container and image forming apparatus incorporating same

Powder container, powder supply assembly, and image forming apparat...

Powder storage container and image forming apparatus in which a gri...

Driving force transmission mechanism and image forming apparatus

Image forming apparatus incorporating developing device with first...

Imaging device, image forming apparatus, and process cartridge

Development device and image forming apparatus incorporating same

Powder container, powder supply assembly, and image forming apparat...

Powder container, powder supply assembly, and image forming apparat...

Powder container

Toner supply device and image forming apparatus that prevents toner...

Image forming apparatus and developer supply method therefor

Image forming apparatus and developer replenishing method

Patents Applicationslast 30 patents

TONER CONTAINER AND IMAGE FORMING APPARATUS

TONER CONTAINER AND IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

CIRCUIT BOARD UNIT, DETACHABLE UNIT, AND IMAGE FORMING APPARATUS

CIRCUIT BOARD UNIT, ATTACHMENT UNIT, AND IMAGE FORMING APPARATUS

DEVELOPING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME

POWDER CONTAINER, DEVELOPING DEVICE, AND IMAGE FORMING APPARATUS

DEVELOPING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME

DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS

DEVELOPER CONTAINER, DEVELOPING DEVICE, AND IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS

CONVEYING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING THE CONV...

DEVELOPING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME

DEVELOPING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME

DEVELOPING DEVICE, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE

COMMUNICATION CONNECTOR AND IMAGE FORMING APPARATUS

DEVELOPING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME

POWDER CONTAINER, POWDER SUPPLY ASSEMBLY, AND IMAGE FORMING APPARATUS

DEVELOPING DEVICE AND IMAGE FORMING APPARATUS

POWDER STORAGE CONTAINER AND IMAGE FORMING APPARATUS

DEVELOPMENT DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME

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

IMAGING DEVICE, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE

DRIVING FORCE TRANSMISSION MECHANISM AND IMAGE FORMING APPARATUS

POWDER CONTAINER AND IMAGE FORMING APPARATUS INCORPORATING SAME

POWDER CONTAINER, POWDER SUPPLY ASSEMBLY, AND IMAGE FORMING APPARATUS

DEVELOPER SUPPLY SYSTEM AND IMAGE FORMING APPARATUS INCORPORATING SAME

IMAGE FORMING APPARATUS AND DEVELOPER REPLENISHING METHOD

IMAGE FORMING APPARATUS AND DEVELOPER SUPPLY METHOD THEREFOR