Yasumasa Ohtsuka

Person

Yokohama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Image heating apparatus and heater
- Patent number 6,469,279
- Issue date Oct 22, 2002
- Canon Kabushiki Kaisha
- Yasumasa Ohtsuka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fluorine-containing resin-coated pressure roller and heat-fixing de...
- Patent number 6,377,777
- Issue date Apr 23, 2002
- Canon Kabushiki Kaisha
- Kazuo Kishino
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing apparatus preventing leakage of electric current from inner...
- Patent number 6,347,211
- Issue date Feb 12, 2002
- Canon Kabushiki Kaisha
- Hideo Nanataki
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Image heating apparatus in which first and second heating resistors...
- Patent number 6,323,460
- Issue date Nov 27, 2001
- Canon Kabushiki Kaisha
- Yasumasa Ohtsuka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing apparatus having a fixing roller with a non-adhesive surface...
- Patent number 6,005,594
- Issue date Dec 21, 1999
- Canon Kabushiki Kaisha
- Hideo Nanataki
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Image heating apparatus using inductive heating
- Patent number 5,862,445
- Issue date Jan 19, 1999
- Canon Kabushiki Kaisha
- Kenichi Ogawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image heating apparatus
- Patent number 5,860,052
- Issue date Jan 12, 1999
- Canon Kabushiki Kaisha
- Yasumasa Ohtsuka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image heating apparatus
- Patent number 5,852,763
- Issue date Dec 22, 1998
- Canon Kabushiki Kaisha
- Kouichi Okuda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image fixing apparatus
- Patent number 5,801,360
- Issue date Sep 1, 1998
- Canon Kabushiki Kaisha
- Hiroyuki Oba
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image heating apparatus
- Patent number 5,778,293
- Issue date Jul 7, 1998
- Canon Kabushiki Kaisha
- Yasumasa Ohtsuka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and film for use in it
- Patent number 5,697,037
- Issue date Dec 9, 1997
- Canon Kabushiki Kaisha
- Hideyuki Yano
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image heating apparatus capable of varying feeding intervals betwee...
- Patent number 5,669,039
- Issue date Sep 16, 1997
- Canon Kabushiki Kaisha
- Yasumasa Ohtsuka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image fixing apparatus having pressure roller with fluorine surface...
- Patent number 5,659,869
- Issue date Aug 19, 1997
- Canon Kabushiki Kaisha
- Yasumasa Ohtsuka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image fixing device with heater responsive to thermal stress
- Patent number 5,592,276
- Issue date Jan 7, 1997
- Canon Kabushiki Kaisha
- Yasumasa Ohtsuka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image heating apparatus
- Patent number 5,568,240
- Issue date Oct 22, 1996
- Canon Kabushiki Kaisha
- Yasumasa Ohtsuka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image fixing apparatus
- Patent number 5,552,874
- Issue date Sep 3, 1996
- Canon Kabushiki Kaisha
- Yasumasa Ohtsuka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image heating apparatus
- Patent number 5,552,582
- Issue date Sep 3, 1996
- Canon Kabushiki Kaisha
- Atsuyoshi Abe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing apparatus with variable fixing temperature
- Patent number 5,534,987
- Issue date Jul 9, 1996
- Canon Kabushiki Kaisha
- Yasumasa Ohtsuka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image heating apparatus and heating film
- Patent number 5,471,288
- Issue date Nov 28, 1995
- Canon Kabushiki Kaisha
- Yasumasa Ohtsuka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image heating apparatus changing set temperature in accordance with...
- Patent number 5,464,964
- Issue date Nov 7, 1995
- Canon Kabushiki Kaisha
- Kouichi Okuda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image fixing device capable of controlling heating overshoot
- Patent number 5,444,521
- Issue date Aug 22, 1995
- Canon Kabushiki Kaisha
- Yohji Tomoyuki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image heating apparatus capable of changing duty ratio
- Patent number 5,365,314
- Issue date Nov 15, 1994
- Canon Kabushiki Kaisha
- Kouichi Okuda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing rotatable member having conductive parting layer and fixing...
- Patent number 5,331,385
- Issue date Jul 19, 1994
- Canon Kabushiki Kaisha
- Yasumasa Ohtsuka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image heater having film guide with projections
- Patent number 5,280,155
- Issue date Jan 18, 1994
- Canon Kabushihi Kaisha
- Yasumasa Ohtsuka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing apparatus with rectifier element
- Patent number 5,253,024
- Issue date Oct 12, 1993
- Canon Kabushiki Kaisha
- Koichi Okuda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 5,253,022
- Issue date Oct 12, 1993
- Canon Kabushiki Kaisha
- Akihiko Takeuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Charging device having charging member, process cartridge and image...
- Patent number 5,235,386
- Issue date Aug 10, 1993
- Canon Kabushiki Kaisha
- Hideyuki Yano
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus with constant voltage and constant current...
- Patent number 5,179,397
- Issue date Jan 12, 1993
- Canon Kabushiki Kaisha
- Yukihiro Ohzeki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus supplied with controllable bias voltage
- Patent number 5,177,549
- Issue date Jan 5, 1993
- Canon Kabushiki Kaisha
- Yasumasa Ohtsuka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having transfer member for carrying transfe...
- Patent number 5,153,654
- Issue date Oct 6, 1992
- Canon Kabushiki Kaisha
- Takayasu Yuminamochi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Yasumasa Ohtsuka

Person

Patents Grantslast 30 patents

Image heating apparatus and heater

Fluorine-containing resin-coated pressure roller and heat-fixing de...

Fixing apparatus preventing leakage of electric current from inner...

Image heating apparatus in which first and second heating resistors...

Fixing apparatus having a fixing roller with a non-adhesive surface...

Image heating apparatus using inductive heating

Image heating apparatus

Image heating apparatus

Image fixing apparatus

Image heating apparatus

Fixing device and film for use in it

Image heating apparatus capable of varying feeding intervals betwee...

Image fixing apparatus having pressure roller with fluorine surface...

Image fixing device with heater responsive to thermal stress

Image heating apparatus

Image fixing apparatus

Image heating apparatus

Fixing apparatus with variable fixing temperature

Image heating apparatus and heating film

Image heating apparatus changing set temperature in accordance with...

Image fixing device capable of controlling heating overshoot

Image heating apparatus capable of changing duty ratio

Fixing rotatable member having conductive parting layer and fixing...

Image heater having film guide with projections

Fixing apparatus with rectifier element

Image forming apparatus

Charging device having charging member, process cartridge and image...

Image forming apparatus with constant voltage and constant current...

Image forming apparatus supplied with controllable bias voltage

Image forming apparatus having transfer member for carrying transfe...