Hiroyuki Ohkaji

Person

Yokohama, 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 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 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
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 having an endless conveying and transferrin...
- Patent number 5,719,684
- Issue date Feb 17, 1998
- Ricoh Company, Ltd.
- Hiroyuki Ohkaji
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image transferring device for a color image recorder
- Patent number 5,189,479
- Issue date Feb 23, 1993
- Ricoh Company, Ltd.
- Itaru Matsuda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image transfer unit for image recording apparatus
- Patent number 4,984,024
- Issue date Jan 8, 1991
- Ricoh Company, Ltd.
- Hiroyuki Ohkaji
- 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

Hiroyuki Ohkaji

Person

Patents Grantslast 30 patents

Image forming apparatus

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

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

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

Electrophotographic image forming apparatus

Image forming apparatus having an endless conveying and transferrin...

Image transferring device for a color image recorder

Image transfer unit for image recording apparatus

Patents Applicationslast 30 patents

Image forming apparatus