Teruyo Hayakawa

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Camera having data protection means
- Patent number 6,144,806
- Issue date Nov 7, 2000
- Seiko Precision Inc.
- Yoichi Seki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Camera dual switch single data input-multiple data output device
- Patent number 5,317,357
- Issue date May 31, 1994
- Seikosha Co., Ltd.
- Yoichi Seki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Flash synchronizing device
- Patent number 5,291,237
- Issue date Mar 1, 1994
- Seikosha Co., Ltd.
- Shigeru Tagami
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Integrated circuit with battery serving as power source having CMOS...
- Patent number 5,107,138
- Issue date Apr 21, 1992
- Seikosha Co., Ltd.
- Yoichi Seki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Battery voltage detecting device
- Patent number 5,099,209
- Issue date Mar 24, 1992
- Seikosha Co., Ltd.
- Yoichi Seki
- G01 - MEASURING TESTING
Information Patent Grant
Flash photography changeover device
- Patent number 4,929,977
- Issue date May 29, 1990
- Seikosha Co., Ltd.
- Tadashi Ishikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY