Seijiro Tokutomi

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Focus detecting device
- Patent number 4,600,830
- Issue date Jul 15, 1986
- Asahi Kogaku Kogyo K.K.
- Seijiro Tokutomi
- G02 - OPTICS
Information Patent Grant
Focusing position detecting device using a sector shaped mirror
- Patent number 4,580,042
- Issue date Apr 1, 1986
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Seijiro Tokutomi
- G02 - OPTICS
Information Patent Grant
Focus detecting device
- Patent number 4,408,853
- Issue date Oct 11, 1983
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Seijiro Tokutomi
- G02 - OPTICS
Information Patent Grant
Focus detecting device
- Patent number 4,384,770
- Issue date May 24, 1983
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Seijiro Tokutomi
- G02 - OPTICS
Information Patent Grant
Display device for focus detecting and indicating device for camera
- Patent number 4,313,657
- Issue date Feb 2, 1982
- Asahi Kogaku Jogyo Kabushiki Kaisha
- Seijiro Tokutomi
- G02 - OPTICS
Information Patent Grant
Electrically operated automatic focalizing camera
- Patent number 4,293,206
- Issue date Oct 6, 1981
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Seijiro Tokutomi
- G02 - OPTICS
Information Patent Grant
Camera focus detecting device
- Patent number 4,293,205
- Issue date Oct 6, 1981
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Seijiro Tokutomi
- G02 - OPTICS
Information Patent Grant
Focus detecting device in single lens reflex camera
- Patent number 4,265,520
- Issue date May 5, 1981
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Seijiro Tokutomi
- G02 - OPTICS
Information Patent Grant
Focus detecting device
- Patent number 4,258,989
- Issue date Mar 31, 1981
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Seijiro Tokutomi
- G02 - OPTICS
Information Patent Grant
Camera focus detecting device
- Patent number 4,253,751
- Issue date Mar 3, 1981
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Seijiro Tokutomi
- G02 - OPTICS
Information Patent Grant
Manual setting device in digital type electrical control camera
- Patent number 4,244,643
- Issue date Jan 13, 1981
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Seijiro Tokutomi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Camera focus detecting device
- Patent number 4,230,401
- Issue date Oct 28, 1980
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Seijiro Tokutomi
- G02 - OPTICS
Information Patent Grant
Abnormal operation warning apparatus for a camera
- Patent number 4,192,589
- Issue date Mar 11, 1980
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Seijiro Tokutomi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Focal point detecting device for SLR camera
- Patent number 4,180,309
- Issue date Dec 25, 1979
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Katsuhiko Miyata
- G02 - OPTICS
Information Patent Grant
Dual purpose finder display for single lens reflex camera
- Patent number 4,172,645
- Issue date Oct 30, 1979
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Seijiro Tokutomi
- 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

Seijiro Tokutomi

Person

Patents Grantslast 30 patents

Focus detecting device

Focusing position detecting device using a sector shaped mirror

Focus detecting device

Focus detecting device

Display device for focus detecting and indicating device for camera

Electrically operated automatic focalizing camera

Camera focus detecting device

Focus detecting device in single lens reflex camera

Focus detecting device

Camera focus detecting device

Manual setting device in digital type electrical control camera

Camera focus detecting device

Abnormal operation warning apparatus for a camera

Focal point detecting device for SLR camera

Dual purpose finder display for single lens reflex camera

Electrically controlled camera device