Hiroto Ohishi

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Image forming apparatus for forming image with fixing device power...
- Patent number 7,693,440
- Issue date Apr 6, 2010
- Ricoh Company, Ltd.
- Naoki Sato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus for forming image with fixing member, power...
- Patent number 7,269,368
- Issue date Sep 11, 2007
- Ricoh Company, Ltd.
- Naoki Sato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Power source control apparatus, and power source control method
- Patent number 7,236,714
- Issue date Jun 26, 2007
- Ricoh Company, Ltd.
- Naoki Sato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Heating unit, auxiliary power unit, fixing unit, and image forming...
- Patent number 7,127,189
- Issue date Oct 24, 2006
- Ricoh Company, Ltd.
- Ryo Takamatsu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Induction heating device with a switching power source and image pr...
- Patent number 6,977,362
- Issue date Dec 20, 2005
- Ricoh Company, Ltd.
- Hiroto Ohishi
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Power circuit and method for controlling drive and control voltages...
- Patent number 6,845,018
- Issue date Jan 18, 2005
- Ricoh Company, Limited
- Hiroto Ohishi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Induction heating device with a switching power source and image pr...
- Patent number 6,806,448
- Issue date Oct 19, 2004
- Ricoh Company, Ltd.
- Hiroto Ohishi
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Induction heating device with a switching power source and image pr...
- Patent number 6,630,651
- Issue date Oct 7, 2003
- Ricoh Company, Ltd.
- Hiroto Ohishi
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Fixing device using an inverter circuit for induction heating
- Patent number 6,531,689
- Issue date Mar 11, 2003
- Ricoh Company, Ltd.
- Hiroto Ohishi
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
IMAGE FORMING APPARATUS, POWER SUPPLY CONTROL METHOD, AND POWER SUP...
- Publication number 20070280714
- Publication date Dec 6, 2007
- Naoki Sato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Power source control apparatus, and power source control method
- Publication number 20050232651
- Publication date Oct 20, 2005
- Naoki Sato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus, power supply control method, and power sup...
- Publication number 20050220474
- Publication date Oct 6, 2005
- Naoki Sato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Auxiliary power source device, fixing device, image forming apparat...
- Publication number 20050189923
- Publication date Sep 1, 2005
- Hiroto Ohishi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Heating unit, auxiliary power unit, fixing unit, and image forming...
- Publication number 20050139591
- Publication date Jun 30, 2005
- Ryo Takamatsu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Induction heating device with a switching power source and image pr...
- Publication number 20040264218
- Publication date Dec 30, 2004
- Hiroto Ohishi
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
Induction heating device with a switching power source and image pr...
- Publication number 20030192882
- Publication date Oct 16, 2003
- Hiroto Ohishi
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
Power circuit of image formation apparatus and method of controllin...
- Publication number 20030185022
- Publication date Oct 2, 2003
- Hiroto Ohishi
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Fixing device using an inverter circuit for induction heating
- Publication number 20020003139
- Publication date Jan 10, 2002
- RICOH COMPANY, LTD.
- Hiroto Ohishi
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
Induction heating device with a switching power source and image pr...
- Publication number 20010015352
- Publication date Aug 23, 2001
- RICOH COMPANY, LTD.
- Hiroto Ohishi
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR

Hiroto Ohishi

Person

Patents Grantslast 30 patents

Image forming apparatus for forming image with fixing device power...

Image forming apparatus for forming image with fixing member, power...

Power source control apparatus, and power source control method

Heating unit, auxiliary power unit, fixing unit, and image forming...

Induction heating device with a switching power source and image pr...

Power circuit and method for controlling drive and control voltages...

Induction heating device with a switching power source and image pr...

Induction heating device with a switching power source and image pr...

Fixing device using an inverter circuit for induction heating

Patents Applicationslast 30 patents

IMAGE FORMING APPARATUS, POWER SUPPLY CONTROL METHOD, AND POWER SUP...

Power source control apparatus, and power source control method

Image forming apparatus, power supply control method, and power sup...

Auxiliary power source device, fixing device, image forming apparat...

Heating unit, auxiliary power unit, fixing unit, and image forming...

Induction heating device with a switching power source and image pr...

Induction heating device with a switching power source and image pr...

Power circuit of image formation apparatus and method of controllin...

Fixing device using an inverter circuit for induction heating

Induction heating device with a switching power source and image pr...