Yoshio Sawada

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Long time exposure preventing device for camera with electronic flash
- Patent number RE31585
- Issue date May 15, 1984
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Masahiro Kawasaki
- 354 -
Information Patent Grant
Automatic focus indicating device for camera
- Patent number 4,329,032
- Issue date May 11, 1982
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Harumi Aoki
- G02 - OPTICS
Information Patent Grant
Focus detecting device
- Patent number 4,326,127
- Issue date Apr 20, 1982
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Harumi Aoki
- G02 - OPTICS
Information Patent Grant
Camera focus detecting device
- Patent number 4,320,946
- Issue date Mar 23, 1982
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Harumi Aoki
- G02 - OPTICS
Information Patent Grant
Automatic focus indicating device for camera
- Patent number 4,319,813
- Issue date Mar 16, 1982
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Harumi Aoki
- G02 - OPTICS
Information Patent Grant
Focus detecting device for photographic camera
- Patent number 4,298,259
- Issue date Nov 3, 1981
- Asaki Kogaku Kogyo Kabushiki Kaisha
- Harumi Aoki
- G02 - OPTICS
Information Patent Grant
Camera focus detecting device
- Patent number 4,293,207
- Issue date Oct 6, 1981
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Harumi Aoki
- G02 - OPTICS
Information Patent Grant
Camera focus detecting device
- Patent number 4,252,425
- Issue date Feb 24, 1981
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Harumi Aoki
- G02 - OPTICS
Information Patent Grant
Camera power supply maintaining circuit
- Patent number 4,250,413
- Issue date Feb 10, 1981
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Masahiro Kawasaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Long time exposure preventing device for camera with electronic flash
- Patent number 4,209,245
- Issue date Jun 24, 1980
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Masahiro Kawasaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photometric circuit
- Patent number 4,180,310
- Issue date Dec 25, 1979
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Masahiro Kawasaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrically controlled camera device
- Patent number 4,171,884
- Issue date Oct 23, 1979
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Seijiro Tokutomi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Diaphragm-type exposure control system having braking arrangement
- Patent number 4,149,785
- Issue date Apr 17, 1979
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Yukio Takaoka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Lens stop auxiliary brake control device in automatic exposure came...
- Patent number 4,139,290
- Issue date Feb 13, 1979
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Yukio Takaoka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Digital display circuit for a photographic exposure meter
- Patent number 4,112,439
- Issue date Sep 5, 1978
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Masahiro Kawasaki
- G01 - MEASURING TESTING
Information Patent Grant
Photometric circuit
- Patent number 4,106,035
- Issue date Aug 8, 1978
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Masahiro Kawasaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Camera having automatic and manual exposure-time determination
- Patent number 4,099,195
- Issue date Jul 4, 1978
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Fumio Urano
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Yoshio Sawada

Person

Patents Grantslast 30 patents

Long time exposure preventing device for camera with electronic flash

Automatic focus indicating device for camera

Focus detecting device

Camera focus detecting device

Automatic focus indicating device for camera

Focus detecting device for photographic camera

Camera focus detecting device

Camera focus detecting device

Camera power supply maintaining circuit

Long time exposure preventing device for camera with electronic flash

Photometric circuit

Electrically controlled camera device

Diaphragm-type exposure control system having braking arrangement

Lens stop auxiliary brake control device in automatic exposure came...

Digital display circuit for a photographic exposure meter

Photometric circuit

Camera having automatic and manual exposure-time determination