Osamu Tanaka

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Hashimoto, JP

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Patents Grantslast 30 patents

Information Patent Grant
Camera and its battery pack
- Patent number 6,292,631
- Issue date Sep 18, 2001
- Minolta Co., Ltd.
- Osamu Tanaka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Zooming operation apparatus of zoom lens
- Patent number 5,035,493
- Issue date Jul 30, 1991
- Minolta Camera Kabushiki Kaisha
- Osamu Tanaka
- G02 - OPTICS
Information Patent Grant
Close-up photographing device
- Patent number 4,870,436
- Issue date Sep 26, 1989
- Minolta Camera Kabushiki Kaisha
- Osamu Tanaka
- G02 - OPTICS
Information Patent Grant
Diaphragm control attachment
- Patent number 4,666,277
- Issue date May 19, 1987
- Minolta Camera Kabushiki Kaisha
- Osamu Tanaka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Diaphragm control mechanism for camera objectives
- Patent number 4,258,996
- Issue date Mar 31, 1981
- Minolta Camera Kabushiki Kaisha
- Kyozo Uesugi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Shock resistant lens device with zoom and macrofocusing controls
- Patent number 4,199,227
- Issue date Apr 22, 1980
- Minolta Camera Kabushiki Kaisha
- Kyozo Uesugi
- G02 - OPTICS