Hiroaki Kumagai

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Toner fixation film and toner fixation apparatus using it
- Patent number 5,939,337
- Issue date Aug 17, 1999
- Canon Kabushiki Kaisha
- Hideyuki Hatakeyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing member and fixing apparatus including same
- Patent number 5,863,660
- Issue date Jan 26, 1999
- Canon Kabushiki Kaisha
- Hiroaki Kumagai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fluororesin-coated member, production method therefor and heat fixi...
- Patent number 5,763,068
- Issue date Jun 9, 1998
- Canon Kabushiki Kaisha
- Kazuo Kishino
- B32 - LAYERED PRODUCTS
Information Patent Grant
Heat fixing belt with conductive aluminum layer toner release layer...
- Patent number 5,765,086
- Issue date Jun 9, 1998
- Canon Kabushiki Kaisha
- Kazuo Kishino
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fluororesin tube-covered fixing roller, and image formation apparatus
- Patent number 5,753,348
- Issue date May 19, 1998
- Canon Kabushiki Kaisha
- Hideyuki Hatakeyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Rotatable member for fixing in which inorganic filler is contained...
- Patent number 5,608,508
- Issue date Mar 4, 1997
- Canon Kabushiki Kaisha
- Hiroaki Kumagai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Optical device
- Patent number 5,392,156
- Issue date Feb 21, 1995
- Canon Kabushiki Kaisha
- Hiroaki Kumagai
- G02 - OPTICS
Information Patent Grant
Photo responsive material employing a thiophene derivative having l...
- Patent number 5,320,936
- Issue date Jun 14, 1994
- Canon Kabushiki Kaisha
- Hiroaki Kumagai
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Thiophene derivative having long conjugated chain at 3-position, an...
- Patent number 5,247,098
- Issue date Sep 21, 1993
- Canon Kabushiki Kaisha
- Hiroaki Kumagai
- C07 - ORGANIC CHEMISTRY

Hiroaki Kumagai

Person

Patents Grantslast 30 patents

Toner fixation film and toner fixation apparatus using it

Fixing member and fixing apparatus including same

Fluororesin-coated member, production method therefor and heat fixi...

Heat fixing belt with conductive aluminum layer toner release layer...

Fluororesin tube-covered fixing roller, and image formation apparatus

Rotatable member for fixing in which inorganic filler is contained...

Optical device

Photo responsive material employing a thiophene derivative having l...

Thiophene derivative having long conjugated chain at 3-position, an...