Noriyuki Usui

Person

Kawasaki, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Image-forming apparatus having a seal for a developer and a method...
- Patent number 6,266,501
- Issue date Jul 24, 2001
- Ricoh Company, Ltd.
- Haruji Mizuishi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus with improved toner density control
- Patent number 6,148,161
- Issue date Nov 14, 2000
- Ricoh Company, Ltd.
- Noriyuki Usui
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having detachable transfer roller and disch...
- Patent number 6,144,822
- Issue date Nov 7, 2000
- Ricoh Company, Ltd.
- Toshitaka Yamaguchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus with a device and a method to increase cont...
- Patent number 6,101,361
- Issue date Aug 8, 2000
- Ricoh Co., Ltd.
- Kenji Karashima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus with a device to increase contact area betw...
- Patent number 5,884,134
- Issue date Mar 16, 1999
- Ricoh Co., Ltd.
- Kenji Karashima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device for image forming apparatus
- Patent number 5,864,733
- Issue date Jan 26, 1999
- Ricoh Company, Ltd.
- Asami Mae
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cleaning control device for image forming equipment
- Patent number 5,175,584
- Issue date Dec 29, 1992
- Ricoh Company, Ltd.
- Noriyuki Usui
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Device for removing deposits from a photoconductive element of an i...
- Patent number 5,083,169
- Issue date Jan 21, 1992
- Ricoh Company, Ltd.
- Noriyuki Usui
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method of cleaning a photoconductive element of an image recorder
- Patent number 4,945,389
- Issue date Jul 31, 1990
- Ricoh Company, Ltd.
- Noriyuki Usui
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Noriyuki Usui

Person

Patents Grantslast 30 patents

Image-forming apparatus having a seal for a developer and a method...

Image forming apparatus with improved toner density control

Image forming apparatus having detachable transfer roller and disch...

Image forming apparatus with a device and a method to increase cont...

Image forming apparatus with a device to increase contact area betw...

Developing device for image forming apparatus

Cleaning control device for image forming equipment

Device for removing deposits from a photoconductive element of an i...

Method of cleaning a photoconductive element of an image recorder