Mayumi Ohori

Person

Kawasaki, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Image forming apparatus
- Patent number 6,898,383
- Issue date May 24, 2005
- Ricoh Company, Ltd.
- Mayumi Ohori
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having a sensor for sensing an amount of re...
- Patent number 6,628,903
- Issue date Sep 30, 2003
- Ricoh Company, Ltd.
- Mayumi Ohori
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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 a voltage applying unit for image tran...
- Patent number 6,160,969
- Issue date Dec 12, 2000
- Ricoh Company, Ltd.
- Kouji Ishigaki
- 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 having a sensor for sensing an amount of re...
- Patent number 6,144,811
- Issue date Nov 7, 2000
- Ricoh Company
- Mayumi Ohori
- 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
Information Patent Grant
Electrophotographic image forming apparatus
- Patent number 6,085,062
- Issue date Jul 4, 2000
- Ricoh Company, Ltd.
- Haruji Mizuishi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and method for automatically adjusting tone...
- Patent number 5,915,143
- Issue date Jun 22, 1999
- Ricoh Company, Ltd.
- Shigeru Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
Image forming apparatus
- Publication number 20040071475
- Publication date Apr 15, 2004
- Mayumi Ohori
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Mayumi Ohori

Person

Patents Grantslast 30 patents

Image forming apparatus

Image forming apparatus having a sensor for sensing an amount of re...

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

Image forming apparatus with a voltage applying unit for image tran...

Image forming apparatus with improved toner density control

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

Image forming apparatus having a sensor for sensing an amount of re...

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

Electrophotographic image forming apparatus

Image forming apparatus and method for automatically adjusting tone...

Patents Applicationslast 30 patents

Image forming apparatus