Tokuichi Tsunekawa

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Camera system having converting means, recording means, reproductio...
- Patent number 7,030,925
- Issue date Apr 18, 2006
- Canon, Inc.
- Tokuichi Tsunekawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus for detecting the direction of visual axis and informatio...
- Patent number 6,091,899
- Issue date Jul 18, 2000
- Canon Kabushiki Kaisha
- Kazuki Konishi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Illuminating device for projecting light
- Patent number 6,022,117
- Issue date Feb 8, 2000
- Canon Kabushiki Kaisha
- Yoshiharu Tenmyo
- G02 - OPTICS
Information Patent Grant
Camera with visual axis detecting device
- Patent number 6,014,524
- Issue date Jan 11, 2000
- Canon Kabushiki Kaisha
- Kenji Suzuki
- G02 - OPTICS
Information Patent Grant
Integral image recording and image playback system
- Patent number 5,923,367
- Issue date Jul 13, 1999
- Canon Kabushiki Kaisha
- Tokuichi Tsunekawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Gazing point detecting device and camera provided with the same
- Patent number 5,708,862
- Issue date Jan 13, 1998
- Canon Kabushiki Kaisha
- Tokuichi Tsunekawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Camera with visual axis detecting device
- Patent number 5,486,892
- Issue date Jan 23, 1996
- Canon Kabushiki Kaisha
- Kenji Suzuki
- G02 - OPTICS
Information Patent Grant
Camera
- Patent number 5,253,008
- Issue date Oct 12, 1993
- Canon Kabushiki Kaisha
- Kazuki Konishi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Visual axis detector using plural reflected image of a light source
- Patent number 5,225,862
- Issue date Jul 6, 1993
- Canon Kabushiki Kaisha
- Akihiko Nagano
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Image pickup device
- Patent number 5,191,435
- Issue date Mar 2, 1993
- Canon Kabushiki Kaisha
- Tokuichi Tsunekawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Focus detecting apparatus in which matching with the image performa...
- Patent number 5,138,359
- Issue date Aug 11, 1992
- Canon Kabushiki Kaisha
- Akihiko Nagano
- G02 - OPTICS
Information Patent Grant
Focus adjusting control device
- Patent number 5,128,705
- Issue date Jul 7, 1992
- Canon Kabushiki Kaisha
- Hiromi Someya
- G02 - OPTICS
Information Patent Grant
Visual line detecting device and camera having the same
- Patent number 5,036,347
- Issue date Jul 30, 1991
- Canon Kabushiki Kaisha
- Tokuichi Tsunekawa
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Image sensing arrangement
- Patent number 4,992,883
- Issue date Feb 12, 1991
- Canon Kabushiki Kaisha
- Tokuichi Tsunekawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus for reading a film image with a photoelectric converting...
- Patent number 4,974,068
- Issue date Nov 27, 1990
- Canon Kabushiki Kaisha
- Akira Hiramatsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Image data reading apparatus
- Patent number 4,933,983
- Issue date Jun 12, 1990
- Canon Kabushiki Kaisha
- Akira Hiramatsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Image recording system
- Patent number 4,928,184
- Issue date May 22, 1990
- Canon Kabushiki Kaisha
- Tokuichi Tsunekawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Pick-up device
- Patent number 4,905,088
- Issue date Feb 27, 1990
- Canon Kabushiki Kaisha
- Tokuichi Tsunekawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Image processing apparatus
- Patent number 4,833,544
- Issue date May 23, 1989
- Canon Kabushiki Kaisha
- Yuichi Sato
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Camera for flash photography having an image recording system
- Patent number 4,823,200
- Issue date Apr 18, 1989
- Canon Kabushiki Kaisha
- Tokuichi Tsunekawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Light metering device for camera
- Patent number 4,739,360
- Issue date Apr 19, 1988
- Canon Kabushiki Kaisha
- Hiroshi Ohmura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Light measuring apparatus
- Patent number 4,725,866
- Issue date Feb 16, 1988
- Canon Kabushiki Kaisha
- Tokuichi Tsunekawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Signal processing circuit of solid state image pickup device
- Patent number 4,712,136
- Issue date Dec 8, 1987
- Canon Kabushiki Kaisha
- Tokuichi Tsunekawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Photometric circuit for camera
- Patent number 4,704,024
- Issue date Nov 3, 1987
- Canon Kabushiki Kaisha
- Tokuichi Tsunekawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photographic apparatus
- Patent number 4,697,905
- Issue date Oct 6, 1987
- Canon Kabushiki Kaisha
- Kazuo Fujibayashi
- G02 - OPTICS
Information Patent Grant
Distance measuring device comprising a two sectioned sensor, each s...
- Patent number 4,687,914
- Issue date Aug 18, 1987
- Canon Kabushiki Kaisha
- Tokuichi Tsunekawa
- G01 - MEASURING TESTING
Information Patent Grant
Photometric device for camera
- Patent number 4,682,873
- Issue date Jul 28, 1987
- Canon Kabushiki Kaisha
- Hiroshi Ohmura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photo-electric converting device
- Patent number 4,681,432
- Issue date Jul 21, 1987
- Canon Kabushiki Kaisha
- Takashi Kawabata
- G01 - MEASURING TESTING
Information Patent Grant
Distance measuring devices and light integrators therefor
- Patent number 4,678,323
- Issue date Jul 7, 1987
- Canon Kabushiki Kaisha
- Yuichi Sato
- G01 - MEASURING TESTING
Information Patent Grant
Device for sensing light and providing electrical readout
- Patent number 4,672,189
- Issue date Jun 9, 1987
- Canon Kabushiki Kaisha
- Tokuichi Tsunekawa
- G02 - OPTICS

Tokuichi Tsunekawa

Person

Patents Grantslast 30 patents

Camera system having converting means, recording means, reproductio...

Apparatus for detecting the direction of visual axis and informatio...

Illuminating device for projecting light

Camera with visual axis detecting device

Integral image recording and image playback system

Gazing point detecting device and camera provided with the same

Camera with visual axis detecting device

Camera

Visual axis detector using plural reflected image of a light source

Image pickup device

Focus detecting apparatus in which matching with the image performa...

Focus adjusting control device

Visual line detecting device and camera having the same

Image sensing arrangement

Apparatus for reading a film image with a photoelectric converting...

Image data reading apparatus

Image recording system

Pick-up device

Image processing apparatus

Camera for flash photography having an image recording system

Light metering device for camera

Light measuring apparatus

Signal processing circuit of solid state image pickup device

Photometric circuit for camera

Photographic apparatus

Distance measuring device comprising a two sectioned sensor, each s...

Photometric device for camera

Photo-electric converting device

Distance measuring devices and light integrators therefor

Device for sensing light and providing electrical readout