Hiroyuki Okaji

Person

Kanagawa-ken, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Image forming apparatus
- Patent number 8,180,249
- Issue date May 15, 2012
- Ricoh Company, Ltd.
- Hiroyuki Okaji
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming method and apparatus for effectively supplying developer
- Patent number 8,086,146
- Issue date Dec 27, 2011
- Ricoh Company, Ltd.
- Mugijirou Uno
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing unit including developer conveyance system having supply...
- Patent number 7,991,330
- Issue date Aug 2, 2011
- Ricoh Company, Ltd.
- Yuki Oshikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus capable of stably conveying recording medium
- Patent number 7,962,078
- Issue date Jun 14, 2011
- Ricoh Co., Ltd.
- Hiroyuki Okaji
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developer supply device and image forming apparatus comprising same
- Patent number 7,925,190
- Issue date Apr 12, 2011
- Ricoh Company, Ltd.
- Keiko Matsumoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing-agent container, method of manufacturing developing-agen...
- Patent number 7,801,467
- Issue date Sep 21, 2010
- Ricoh Company, Ltd.
- Mugijirou Uno
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus capable of stably conveying recording medium
- Patent number 7,787,813
- Issue date Aug 31, 2010
- Ricoh Co., Ltd.
- Hiroyuki Okaji
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and method for controlling charging and dev...
- Patent number 6,128,449
- Issue date Oct 3, 2000
- Ricoh Company, Ltd.
- Hideki Zenba
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
IMAGE FORMING APPARATUS CAPABLE OF STABLY CONVEYING RECORDING MEDIUM
- Publication number 20100303519
- Publication date Dec 2, 2010
- Hiroyuki OKAJI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20090129814
- Publication date May 21, 2009
- Hiroyuki OKAJI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING UNIT, PROCESS CARTRIDGE INCLUDING SAME, AND IMAGE FORMIN...
- Publication number 20090041508
- Publication date Feb 12, 2009
- Yuki OSHIKAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
POWDER FILLING METHOD, POWDER CONTAINER, DEVELOPER REPLENISHING DEV...
- Publication number 20080175628
- Publication date Jul 24, 2008
- Emi Kita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING-AGENT CONTAINER, METHOD OF MANUFACTURING DEVELOPING-AGEN...
- Publication number 20080063434
- Publication date Mar 13, 2008
- Mugijirou Uno
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPER SUPPLY DEVICE AND IMAGE FORMING APPARATUS COMPRISING SAME
- Publication number 20070280742
- Publication date Dec 6, 2007
- Keiko MATSUMOTO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING METHOD AND APPARATUS FOR EFFECTIVELY SUPPLYING DEVELOPER
- Publication number 20070116494
- Publication date May 24, 2007
- Mugijirou Uno
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS CAPABLE OF STABLY CONVEYING RECORDING MEDIUM
- Publication number 20070110486
- Publication date May 17, 2007
- Hiroyuki OKAJI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Hiroyuki Okaji

Person

Patents Grantslast 30 patents

Image forming apparatus

Image forming method and apparatus for effectively supplying developer

Developing unit including developer conveyance system having supply...

Image forming apparatus capable of stably conveying recording medium

Developer supply device and image forming apparatus comprising same

Developing-agent container, method of manufacturing developing-agen...

Image forming apparatus capable of stably conveying recording medium

Image forming apparatus and method for controlling charging and dev...

Patents Applicationslast 30 patents

IMAGE FORMING APPARATUS CAPABLE OF STABLY CONVEYING RECORDING MEDIUM

IMAGE FORMING APPARATUS

DEVELOPING UNIT, PROCESS CARTRIDGE INCLUDING SAME, AND IMAGE FORMIN...

POWDER FILLING METHOD, POWDER CONTAINER, DEVELOPER REPLENISHING DEV...

DEVELOPING-AGENT CONTAINER, METHOD OF MANUFACTURING DEVELOPING-AGEN...

DEVELOPER SUPPLY DEVICE AND IMAGE FORMING APPARATUS COMPRISING SAME

IMAGE FORMING METHOD AND APPARATUS FOR EFFECTIVELY SUPPLYING DEVELOPER

IMAGE FORMING APPARATUS CAPABLE OF STABLY CONVEYING RECORDING MEDIUM