Tokuichi Tsunekawa

Person

Yokohama, JA

People

Patents Grantslast 30 patents

Information Patent Grant
Matching device for flash light photographic device
- Patent number 4,095,242
- Issue date Jun 13, 1978
- Canon Kabushiki Kaisha
- Tokuichi Tsunekawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Exposure control device for a camera
- Patent number 4,086,582
- Issue date Apr 25, 1978
- Canon Kabushiki Kaisha
- Takehiko Kiyohara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Automatic exposure control system for flash photography
- Patent number 4,083,059
- Issue date Apr 4, 1978
- Canon Kabushiki Kaisha
- Tokuichi Tsunekawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Camera system
- Patent number 4,079,385
- Issue date Mar 14, 1978
- Canon Kabushiki Kaisha
- Zenzo Nakamura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Flash light photographic systems
- Patent number 4,078,242
- Issue date Mar 7, 1978
- Canon Kabushiki Kaisha
- Takashi Uchiyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Light measuring circuit with stray capacitance compensating means
- Patent number 4,076,977
- Issue date Feb 28, 1978
- Canon Kabushiki Kaisha
- Tokuichi Tsunekawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Control system consisting of semi-conductor integrated circuits for...
- Patent number 4,062,024
- Issue date Dec 6, 1977
- Canon Kabushiki Kaisha
- Tokuichi Tsunekawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Camera system with means for automatically switching to flash opera...
- Patent number 4,047,194
- Issue date Sep 6, 1977
- Canon Kabushiki Kaisha
- Zenzo Nakamura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Exposure meter circuit of camera with matching network for flash de...
- Patent number 4,034,384
- Issue date Jul 5, 1977
- Canon Kabushiki Kaisha
- Tokuichi Tsunekawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Temperature compensating device for devices having semiconductors
- Patent number 4,015,149
- Issue date Mar 29, 1977
- Canon Kabushiki Kaisha
- Tokuichi Tsunekawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Electronic flash device with capacitor discharge cut-off before fu...
- Patent number 4,012,665
- Issue date Mar 15, 1977
- Canon Kabushiki Kaisha
- Zenzo Nakamura
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Light measuring apparatus for a single lens reflex camera
- Patent number 3,996,594
- Issue date Dec 7, 1976
- Canon Kabushiki Kaisha
- Youichi Okuno
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Exposure control apparatus for a camera
- Patent number 3,973,267
- Issue date Aug 3, 1976
- Canon Kabushiki Kaisha
- Teiji Hashimoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Tokuichi Tsunekawa

Person

Patents Grantslast 30 patents

Matching device for flash light photographic device

Exposure control device for a camera

Automatic exposure control system for flash photography

Camera system

Flash light photographic systems

Light measuring circuit with stray capacitance compensating means

Control system consisting of semi-conductor integrated circuits for...

Camera system with means for automatically switching to flash opera...

Exposure meter circuit of camera with matching network for flash de...

Temperature compensating device for devices having semiconductors

Electronic flash device with capacitor discharge cut-off before fu...

Light measuring apparatus for a single lens reflex camera

Exposure control apparatus for a camera