Yasuyuki Ishii

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Developing device and image forming apparatus including a toner bea...
- Patent number 9,201,336
- Issue date Dec 1, 2015
- Ricoh Company, Ltd.
- Osamu Endou
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Development device and image forming apparatus incorporating same
- Patent number 9,158,228
- Issue date Oct 13, 2015
- Ricoh Company, Ltd.
- Yoshiko Ogawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Development device, and image forming apparatus and process cartrid...
- Patent number 8,965,254
- Issue date Feb 24, 2015
- Ricoh Company, Ltd.
- Yoshiko Ogawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 8,948,638
- Issue date Feb 3, 2015
- Ricoh Company, Ltd.
- Yuji Ishikura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Development device, and image forming apparatus and process cartrid...
- Patent number 8,929,782
- Issue date Jan 6, 2015
- Ricoh Company, Ltd.
- Osamu Endou
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device, image forming apparatus, and image forming method
- Patent number 8,897,681
- Issue date Nov 25, 2014
- Ricoh Company, Ltd.
- Tetsuro Hirota
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Development device, process cartridge incorporating same, and image...
- Patent number 8,824,935
- Issue date Sep 2, 2014
- Ricoh Company, Ltd.
- Hideyasu Seki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Development device, process cartridge incorporating same, and image...
- Patent number 8,588,635
- Issue date Nov 19, 2013
- Ricoh Company, Limited
- Yoshiko Ogawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device, process cartridge, and image forming apparatus
- Patent number 8,391,755
- Issue date Mar 5, 2013
- Ricoh Company, Ltd.
- Yoshinori Nakagawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developer bearing member and developing device with outer electrode...
- Patent number 8,374,531
- Issue date Feb 12, 2013
- Ricoh Company, Ltd.
- Yoshinori Nakagawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Development unit, for image forming apparatus
- Patent number 8,355,657
- Issue date Jan 15, 2013
- Ricoh Company, Limited
- Ichiro Kadota
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing unit, processing unit, and image forming apparatus
- Patent number 8,204,415
- Issue date Jun 19, 2012
- Ricoh Company, Limited
- Yoshinori Nakagawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Development device and image forming apparatus having electrodes th...
- Patent number 8,165,510
- Issue date Apr 24, 2012
- Ricoh Company, Limited
- Ichiro Kadota
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing apparatus, image forming apparatus, and process cartridge
- Patent number 8,073,350
- Issue date Dec 6, 2011
- Ricoh Company, Ltd.
- Yasuyuki Ishii
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device, process cartridge, and image forming apparatus
- Patent number 8,041,267
- Issue date Oct 18, 2011
- Ricoh Company, Limited
- Yoshinori Nakagawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device, process cartridge, and image forming apparatus
- Patent number 8,041,268
- Issue date Oct 18, 2011
- Ricoh Company Limited
- Tomoko Takahashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Development device
- Patent number 8,005,409
- Issue date Aug 23, 2011
- Ricoh Company Limited
- Yasuyuki Ishii
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Development device and image forming apparatus that uses this device
- Patent number 7,920,812
- Issue date Apr 5, 2011
- Ricoh Company, Ltd.
- Hideki Kosugi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device, a process cartridge and an image forming apparat...
- Patent number 7,912,410
- Issue date Mar 22, 2011
- Ricoh Company, Ltd.
- Tomoko Takahashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Development apparatus and image forming apparatus using toner carri...
- Patent number 7,907,856
- Issue date Mar 15, 2011
- Ricoh Company, Ltd.
- Takeo Tsukamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Filling-rate lowering and rolling rate adjusting image forming appa...
- Patent number 7,822,351
- Issue date Oct 26, 2010
- Ricoh Company, Ltd.
- Katsuhiro Aoki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Hopping toner development apparatus and image formation apparatus
- Patent number 7,783,235
- Issue date Aug 24, 2010
- Ricoh Company, Ltd.
- Takeo Tsukamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Development device, process cartridge, and image forming apparatus
- Patent number 7,734,233
- Issue date Jun 8, 2010
- Ricoh Company, Ltd.
- Katsuhiro Aoki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing unit and image forming apparatus
- Patent number 7,702,265
- Issue date Apr 20, 2010
- Ricoh Company, Ltd.
- Hideki Kosugi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
METHOD OF CONTROLLING VIRTUAL NETWORK FUNCTION, VIRTUAL NETWORK FUN...
- Publication number 20210191743
- Publication date Jun 24, 2021
- NEC Corporation
- Yutaka NISHIGORI
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
VIRTUAL NETWORK FUNCTION MANAGEMENT APPARATUS, VIRTUAL INFRASTRUCTU...
- Publication number 20200026542
- Publication date Jan 23, 2020
- NEC Corporation
- Yasuyuki ISHII
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
DEVELOPMENT DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20130216250
- Publication date Aug 22, 2013
- Hideyasu SEKI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPMENT DEVICE, AND IMAGE FORMING APPARATUS AND PROCESS CARTRID...
- Publication number 20130216276
- Publication date Aug 22, 2013
- Yoshiko OGAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPMENT DEVICE, AND IMAGE FORMING APPARATUS AND PROCESS CARTRID...
- Publication number 20130216277
- Publication date Aug 22, 2013
- Osamu ENDOU
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20130209143
- Publication date Aug 15, 2013
- Osamu ENDOU
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPMENT DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20130071147
- Publication date Mar 21, 2013
- Yoshiko OGAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPMENT DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20130071148
- Publication date Mar 21, 2013
- Yuuji ISHIKURA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE, IMAGE FORMING APPARATUS, AND IMAGE FORMING METHOD
- Publication number 20120063797
- Publication date Mar 15, 2012
- Tetsuro HIROTA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPMENT DEVICE, PROCESS CARTRIDGE INCORPORATING SAME, AND IMAGE...
- Publication number 20120063815
- Publication date Mar 15, 2012
- Hideyasu SEKI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20120057891
- Publication date Mar 8, 2012
- Yuji ISHIKURA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPMENT DEVICE, PROCESS CARTRIDGE INCORPORATING SAME, AND IMAGE...
- Publication number 20110164892
- Publication date Jul 7, 2011
- Yoshiko OGAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPER BEARING MEMBER & DEVELOPING DEVICE WITH PLURAL LAYERS OF...
- Publication number 20100150615
- Publication date Jun 17, 2010
- Yoshinori NAKAGAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE
- Publication number 20100021214
- Publication date Jan 28, 2010
- Ichiro Kadota
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPMENT DEVICE
- Publication number 20090290901
- Publication date Nov 26, 2009
- Yasuyuki ISHII
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING UNIT, PROCESSING UNIT, AND IMAGE FORMING APPARATUS
- Publication number 20090257791
- Publication date Oct 15, 2009
- Yoshinori Nakagawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS
- Publication number 20090257786
- Publication date Oct 15, 2009
- Yoshinori Nakagawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPMENT DEVICE AND IMAGE FORMING APPARATUS THAT USES THIS DEVICE
- Publication number 20090123193
- Publication date May 14, 2009
- Hideki Kosugi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20090074431
- Publication date Mar 19, 2009
- Katsuhiro Aoki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE, PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS
- Publication number 20090067879
- Publication date Mar 12, 2009
- Tomoko Takahashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS
- Publication number 20090067889
- Publication date Mar 12, 2009
- Yoshinori Nakagawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING APPARATUS, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE
- Publication number 20090035025
- Publication date Feb 5, 2009
- Yasuyuki ISHII
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPMENT UNIT, PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS USI...
- Publication number 20090022523
- Publication date Jan 22, 2009
- Ichiro KADOTA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS
- Publication number 20090016781
- Publication date Jan 15, 2009
- Tomoko TAKAHASHI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPMENT DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20080286015
- Publication date Nov 20, 2008
- Ichiro Kadota
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING UNIT AND IMAGE FORMING APPARATUS
- Publication number 20080124138
- Publication date May 29, 2008
- Hideki KOSUGI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPMENT APPARATUS AND AN IMAGE FORMATION APPARATUS
- Publication number 20080089723
- Publication date Apr 17, 2008
- Takeo Tsukamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPMENT APPARATUS AND AN IMAGE FORMATION APPARATUS
- Publication number 20080089720
- Publication date Apr 17, 2008
- Takeo Tsukamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPMENT DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS
- Publication number 20070242985
- Publication date Oct 18, 2007
- Katsuhiro AOKI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Development apparatus and image forming apparatus
- Publication number 20070086811
- Publication date Apr 19, 2007
- Takeo Tsukamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Yasuyuki Ishii

Person

Patents Grantslast 30 patents

Developing device and image forming apparatus including a toner bea...

Development device and image forming apparatus incorporating same

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

Image forming apparatus

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

Developing device, image forming apparatus, and image forming method

Development device, process cartridge incorporating same, and image...

Development device, process cartridge incorporating same, and image...

Developing device, process cartridge, and image forming apparatus

Developer bearing member and developing device with outer electrode...

Development unit, for image forming apparatus

Developing unit, processing unit, and image forming apparatus

Development device and image forming apparatus having electrodes th...

Developing apparatus, image forming apparatus, and process cartridge

Developing device, process cartridge, and image forming apparatus

Developing device, process cartridge, and image forming apparatus

Development device

Development device and image forming apparatus that uses this device

Developing device, a process cartridge and an image forming apparat...

Development apparatus and image forming apparatus using toner carri...

Filling-rate lowering and rolling rate adjusting image forming appa...

Hopping toner development apparatus and image formation apparatus

Development device, process cartridge, and image forming apparatus

Developing unit and image forming apparatus

Patents Applicationslast 30 patents

METHOD OF CONTROLLING VIRTUAL NETWORK FUNCTION, VIRTUAL NETWORK FUN...

VIRTUAL NETWORK FUNCTION MANAGEMENT APPARATUS, VIRTUAL INFRASTRUCTU...

DEVELOPMENT DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME

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

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

DEVELOPING DEVICE AND IMAGE FORMING APPARATUS

DEVELOPMENT DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME

DEVELOPMENT DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME

DEVELOPING DEVICE, IMAGE FORMING APPARATUS, AND IMAGE FORMING METHOD

DEVELOPMENT DEVICE, PROCESS CARTRIDGE INCORPORATING SAME, AND IMAGE...

IMAGE FORMING APPARATUS

DEVELOPMENT DEVICE, PROCESS CARTRIDGE INCORPORATING SAME, AND IMAGE...

DEVELOPER BEARING MEMBER & DEVELOPING DEVICE WITH PLURAL LAYERS OF...

DEVELOPING DEVICE, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE

DEVELOPMENT DEVICE

DEVELOPING UNIT, PROCESSING UNIT, AND IMAGE FORMING APPARATUS

DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS

DEVELOPMENT DEVICE AND IMAGE FORMING APPARATUS THAT USES THIS DEVICE

IMAGE FORMING APPARATUS

DEVELOPING DEVICE, PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS

DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS

DEVELOPING APPARATUS, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE

DEVELOPMENT UNIT, PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS USI...

DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS

DEVELOPMENT DEVICE AND IMAGE FORMING APPARATUS

DEVELOPING UNIT AND IMAGE FORMING APPARATUS

DEVELOPMENT APPARATUS AND AN IMAGE FORMATION APPARATUS

DEVELOPMENT APPARATUS AND AN IMAGE FORMATION APPARATUS

DEVELOPMENT DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS

Development apparatus and image forming apparatus