Kohta SAKAYA

Person

Hyogo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Image forming apparatus with a toner conveying device having a reve...
- Patent number 11,868,064
- Issue date Jan 9, 2024
- Ricoh Company, Ltd.
- Kohta Sakaya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner container having a shutter, a lever disposed on one side, and...
- Patent number 11,231,664
- Issue date Jan 25, 2022
- Ricoh Company, Ltd.
- Tomofumi Yoshida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner container with an operating structure disposed on a first sid...
- Patent number 10,915,040
- Issue date Feb 9, 2021
- Ricoh Company, Ltd.
- Tomofumi Yoshida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner container with an operating structure disposed on a first sid...
- Patent number 10,564,572
- Issue date Feb 18, 2020
- Ricoh Company, Ltd.
- Tomofumi Yoshida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner container, developing device, process cartridge, and image fo...
- Patent number 10,365,584
- Issue date Jul 30, 2019
- Ricoh Company, Ltd.
- Tomofumi Yoshida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner container, developing device, process cartridge, and image fo...
- Patent number 10,317,817
- Issue date Jun 11, 2019
- Ricoh Company, Ltd.
- Tomofumi Yoshida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner container, developing device, process cartridge, and image fo...
- Patent number 10,025,227
- Issue date Jul 17, 2018
- Ricoh Company, Ltd.
- Tomofumi Yoshida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Collecting member to collect image forming powder
- Patent number 10,025,228
- Issue date Jul 17, 2018
- Ricoh Company, Ltd.
- Kohta Sakaya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Separator, fixing device, and image forming apparatus
- Patent number 9,740,147
- Issue date Aug 22, 2017
- Ricoh Company, Ltd.
- Hitoshi Fujiwara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner container, developing device, process cartridge, and image fo...
- Patent number 9,690,231
- Issue date Jun 27, 2017
- Ricoh Company, Limited
- Tomofumi Yoshida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developer amount detector, developing device, process unit, and ima...
- Patent number 9,261,816
- Issue date Feb 16, 2016
- Ricoh Company, Ltd.
- Kohta Sakaya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device, and image forming apparatus and process unit inc...
- Patent number 9,217,953
- Issue date Dec 22, 2015
- Ricoh Company, Ltd.
- Kohta Sakaya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus including a covered retracting mechanism
- Patent number 9,188,901
- Issue date Nov 17, 2015
- Ricoh Company, Limited
- Kenji Nakamura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Powder container
- Patent number D740357
- Issue date Oct 6, 2015
- Ricoh Company, Ltd.
- Shinichi Arasawa
- D18 - Printing and office machinery
Information Patent Grant
Fixing device and image forming apparatus
- Patent number 9,116,476
- Issue date Aug 25, 2015
- Ricoh Company, Ltd.
- Yoshiharu Takahashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Media guide mechanism, fixing device and image forming apparatus in...
- Patent number 8,874,021
- Issue date Oct 28, 2014
- Ricoh Company, Ltd.
- Kohta Sakaya
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Lever switcher with mechanism for minimizing mechanical shock and s...
- Patent number 8,867,942
- Issue date Oct 21, 2014
- Ricoh Company, Ltd.
- Tamotsu Ikeda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device with guide member having multiple spurs and image for...
- Patent number 8,837,998
- Issue date Sep 16, 2014
- Ricoh Company, Ltd.
- Kohta Sakaya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Guide device with mechanism capable of minimizing damage to toner i...
- Patent number 8,699,929
- Issue date Apr 15, 2014
- Ricoh Company, Ltd.
- Kohta Sakaya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Development device, processing unit and image forming apparatus
- Patent number 8,688,015
- Issue date Apr 1, 2014
- Ricoh Company, Ltd.
- Tetsumaru Fujita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and toner supply method
- Patent number 8,594,519
- Issue date Nov 26, 2013
- Ricoh Company, Ltd.
- Naoki Nakatake
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing unit, image forming apparatus, and process cartridge
- Patent number 8,503,892
- Issue date Aug 6, 2013
- Ricoh Company, Limited
- Kohta Sakaya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus using this fixing device
- Patent number 8,498,560
- Issue date Jul 30, 2013
- Ricoh Company, Ltd.
- Kohta Sakaya
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Image forming apparatus and toner supply method
- Patent number 8,483,583
- Issue date Jul 9, 2013
- Ricoh Company, Ltd.
- Atsushi Takehara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus including same
- Patent number 8,364,051
- Issue date Jan 29, 2013
- Ricoh Company, Ltd.
- Kohta Sakaya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Double-sided one pass image forming apparatus
- Patent number 8,200,134
- Issue date Jun 12, 2012
- Ricoh Company, Ltd.
- Shunsuke Hamahashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Separating member, fixing device, and image forming apparatus
- Patent number 8,107,864
- Issue date Jan 31, 2012
- Ricoh Company, Limited
- Osamu Saito
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 8,090,303
- Issue date Jan 3, 2012
- Ricoh Company, Ltd.
- Masayuki Hayashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20220373934
- Publication date Nov 24, 2022
- Kohta SAKAYA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
TONER CONTAINER WITH AN OPERATING STRUCTURE DISPOSED ON A FIRST SID...
- Publication number 20210116843
- Publication date Apr 22, 2021
- RICOH COMPANY, LTD.
- Tomofumi YOSHIDA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
TONER CONTAINER WITH AN OPERATING STRUCTURE DISPOSED ON A FIRST SID...
- Publication number 20200133164
- Publication date Apr 30, 2020
- RICOH COMPANY, LTD.
- Tomofumi YOSHIDA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
TONER CONTAINER, DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FO...
- Publication number 20190258191
- Publication date Aug 22, 2019
- RICOH COMPANY, LTD.
- Tomofumi YOSHIDA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
TONER CONTAINER, DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FO...
- Publication number 20180253032
- Publication date Sep 6, 2018
- Tomofumi YOSHIDA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
UNIT AND IMAGE FORMING APPARATUS
- Publication number 20170219965
- Publication date Aug 3, 2017
- Kohta SAKAYA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
TONER CONTAINER, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS
- Publication number 20170219957
- Publication date Aug 3, 2017
- Tomofumi YOSHIDA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
SEPARATOR, FIXING DEVICE, AND IMAGE FORMING APPARATUS
- Publication number 20160378028
- Publication date Dec 29, 2016
- RICOH COMPANY, LTD.
- Hitoshi Fujiwara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
TONER CONTAINER, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS
- Publication number 20160109827
- Publication date Apr 21, 2016
- Tomofumi YOSHIDA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPER AMOUNT DETECTOR, DEVELOPING DEVICE, PROCESS UNIT, AND IMA...
- Publication number 20150132018
- Publication date May 14, 2015
- Kohta SAKAYA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE, AND IMAGE FORMING APPARATUS AND PROCESS UNIT INC...
- Publication number 20150003848
- Publication date Jan 1, 2015
- Kohta SAKAYA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20140147166
- Publication date May 29, 2014
- Ricoh Company, Limited
- Kenji NAKAMURA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
GUIDE DEVICE WITH MECHANISM CAPABLE OF MINIMIZING DAMAGE TO TONER I...
- Publication number 20130004214
- Publication date Jan 3, 2013
- Kohta SAKAYA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
MEDIA GUIDE MECHANISM, FIXING DEVICE AND IMAGE FORMING APPARATUS IN...
- Publication number 20130004222
- Publication date Jan 3, 2013
- RICOH COMPANY, LTD.
- Kohta Sakaya
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
LEVER SWITCHER WITH MECHANISM FOR MINIMIZING MECHANICAL SHOCK AND...
- Publication number 20130004217
- Publication date Jan 3, 2013
- Tamotsu Ikeda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20120195652
- Publication date Aug 2, 2012
- Yoshiharu TAKAHASHI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPMENT DEVICE, PROCESSING UNIT AND IMAGE FORMING APPARATUS
- Publication number 20120033997
- Publication date Feb 9, 2012
- Tetsumaru FUJITA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS AND TONER SUPPLY METHOD
- Publication number 20110217055
- Publication date Sep 8, 2011
- Atsushi Takehara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS AND TONER SUPPLY METHOD
- Publication number 20110194864
- Publication date Aug 11, 2011
- Naoki Nakatake
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING UNIT, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE
- Publication number 20110188896
- Publication date Aug 4, 2011
- Kohta SAKAYA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Fixing device and image forming apparatus including same
- Publication number 20100239297
- Publication date Sep 23, 2010
- Ricoh Company, Ltd.
- Kohta Sakaya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Fixing device and image forming apparatus incorporating same
- Publication number 20100086334
- Publication date Apr 8, 2010
- Ricoh Company, Ltd.
- KOHTA SAKAYA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20090238585
- Publication date Sep 24, 2009
- Masayuki Hayashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20090190949
- Publication date Jul 30, 2009
- Shunsuke Hamahashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Fixing device and image forming apparatus using this fixing device
- Publication number 20090129836
- Publication date May 21, 2009
- Kohta Sakaya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
SEPARATING MEMBER, FIXING DEVICE, AND IMAGE FORMING APPARATUS
- Publication number 20090110449
- Publication date Apr 30, 2009
- Osamu Saito
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Kohta SAKAYA

Person

Patents Grantslast 30 patents

Image forming apparatus with a toner conveying device having a reve...

Toner container having a shutter, a lever disposed on one side, and...

Toner container with an operating structure disposed on a first sid...

Toner container with an operating structure disposed on a first sid...

Toner container, developing device, process cartridge, and image fo...

Toner container, developing device, process cartridge, and image fo...

Toner container, developing device, process cartridge, and image fo...

Collecting member to collect image forming powder

Separator, fixing device, and image forming apparatus

Toner container, developing device, process cartridge, and image fo...

Developer amount detector, developing device, process unit, and ima...

Developing device, and image forming apparatus and process unit inc...

Image forming apparatus including a covered retracting mechanism

Powder container

Fixing device and image forming apparatus

Media guide mechanism, fixing device and image forming apparatus in...

Lever switcher with mechanism for minimizing mechanical shock and s...

Fixing device with guide member having multiple spurs and image for...

Guide device with mechanism capable of minimizing damage to toner i...

Development device, processing unit and image forming apparatus

Image forming apparatus and toner supply method

Developing unit, image forming apparatus, and process cartridge

Fixing device and image forming apparatus using this fixing device

Image forming apparatus and toner supply method

Fixing device and image forming apparatus including same

Double-sided one pass image forming apparatus

Separating member, fixing device, and image forming apparatus

Image forming apparatus

Patents Applicationslast 30 patents

IMAGE FORMING APPARATUS

TONER CONTAINER WITH AN OPERATING STRUCTURE DISPOSED ON A FIRST SID...

TONER CONTAINER WITH AN OPERATING STRUCTURE DISPOSED ON A FIRST SID...

TONER CONTAINER, DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FO...

TONER CONTAINER, DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FO...

UNIT AND IMAGE FORMING APPARATUS

TONER CONTAINER, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS

SEPARATOR, FIXING DEVICE, AND IMAGE FORMING APPARATUS

TONER CONTAINER, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS

DEVELOPER AMOUNT DETECTOR, DEVELOPING DEVICE, PROCESS UNIT, AND IMA...

DEVELOPING DEVICE, AND IMAGE FORMING APPARATUS AND PROCESS UNIT INC...

IMAGE FORMING APPARATUS

GUIDE DEVICE WITH MECHANISM CAPABLE OF MINIMIZING DAMAGE TO TONER I...

MEDIA GUIDE MECHANISM, FIXING DEVICE AND IMAGE FORMING APPARATUS IN...

LEVER SWITCHER WITH MECHANISM FOR MINIMIZING MECHANICAL SHOCK AND...

FIXING DEVICE AND IMAGE FORMING APPARATUS

DEVELOPMENT DEVICE, PROCESSING UNIT AND IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS AND TONER SUPPLY METHOD

IMAGE FORMING APPARATUS AND TONER SUPPLY METHOD

DEVELOPING UNIT, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE

Fixing device and image forming apparatus including same

Fixing device and image forming apparatus incorporating same

IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

Fixing device and image forming apparatus using this fixing device

SEPARATING MEMBER, FIXING DEVICE, AND IMAGE FORMING APPARATUS