Koichi YAMAZAKI

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

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
Toner container, toner supply device, and image forming apparatus i...
- Patent number 11,048,189
- Issue date Jun 29, 2021
- Ricoh Company, Ltd.
- Takahiro Adachi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developer conveyor having three blades
- Patent number 10,895,827
- Issue date Jan 19, 2021
- Ricoh Company, Ltd.
- Tatsuya Ohhira
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Powder supply device and image forming apparatus incorporating same
- Patent number 10,317,814
- Issue date Jun 11, 2019
- Ricoh Company, Ltd.
- Nobuo Takami
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device and image forming apparatus incorporating same th...
- Patent number 10,007,209
- Issue date Jun 26, 2018
- Ricoh Company, Ltd.
- Shinnosuke Koshizuka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device and image forming apparatus incorporating same
- Patent number 9,897,938
- Issue date Feb 20, 2018
- Ricoh Company, Ltd.
- Shinnosuke Koshizuka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Powder amount detector, powder supply device, and image forming app...
- Patent number 9,817,335
- Issue date Nov 14, 2017
- Ricoh Company, Ltd.
- Naohiro Kawashima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device, image forming apparatus, and process cartridge
- Patent number 9,341,986
- Issue date May 17, 2016
- Ricoh Company, Ltd.
- Atsushi Nakamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner supplying device and image forming apparatus having a project...
- Patent number 9,244,383
- Issue date Jan 26, 2016
- Ricoh Company, Limited
- Hironori Ohshima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Development device and image forming apparatus incorporating same
- Patent number 8,655,237
- Issue date Feb 18, 2014
- Ricoh Company, Ltd.
- Yuji Suzuki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

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
TONER CONTAINER, TONER SUPPLY DEVICE, AND IMAGE FORMING APPARATUS
- Publication number 20200292963
- Publication date Sep 17, 2020
- Ricoh Company, Ltd.
- Takahiro ADACHI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPER CONVEYOR, DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE...
- Publication number 20200264538
- Publication date Aug 20, 2020
- Tatsuya OHHIRA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20170351195
- Publication date Dec 7, 2017
- RICOH COMPANY, LTD.
- Shinnosuke Koshizuka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
POWDER SUPPLY DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20170168418
- Publication date Jun 15, 2017
- Nobuo TAKAMI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20170168421
- Publication date Jun 15, 2017
- Shinnosuke KOSHIZUKA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
POWDER AMOUNT DETECTOR, POWDER SUPPLY DEVICE, AND IMAGE FORMING APP...
- Publication number 20170115597
- Publication date Apr 27, 2017
- NAOHIRO KAWASHIMA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20160195846
- Publication date Jul 7, 2016
- Shinnosuke KOSHIZUKA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
TONER SUPPLYING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20150063875
- Publication date Mar 5, 2015
- Hironori OHSHIMA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE
- Publication number 20150023700
- Publication date Jan 22, 2015
- Atsushi NAKAMOTO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Koichi YAMAZAKI

Person

Patents Grantslast 30 patents

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

Toner container, toner supply device, and image forming apparatus i...

Developer conveyor having three blades

Powder supply device and image forming apparatus incorporating same

Developing device and image forming apparatus incorporating same th...

Developing device and image forming apparatus incorporating same

Powder amount detector, powder supply device, and image forming app...

Developing device, image forming apparatus, and process cartridge

Toner supplying device and image forming apparatus having a project...

Development device and image forming apparatus incorporating same

Patents Applicationslast 30 patents

DEVELOPING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME

TONER CONTAINER, TONER SUPPLY DEVICE, AND IMAGE FORMING APPARATUS

DEVELOPER CONVEYOR, DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE...

DEVELOPING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME

POWDER SUPPLY DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME

DEVELOPING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME

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

DEVELOPING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME

TONER SUPPLYING DEVICE AND IMAGE FORMING APPARATUS

DEVELOPING DEVICE, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE