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Tatsuhiko Takatsu
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Tokyo, JP
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last 30 patents
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Patent Grant
A/D converting device, A/D converting method and optical pulse test...
Patent number
6,356,220
Issue date
Mar 12, 2002
Ando Electric Co., Ltd.
Tatsuhiko Takatsu
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Offset correction circuit and DC amplification circuit
Patent number
6,239,643
Issue date
May 29, 2001
Ando Electric Co., Ltd.
Tatsuhiko Takatsu
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Optical-frequency-stabilized light source
Patent number
6,122,087
Issue date
Sep 19, 2000
Ando Electric Co., Ltd.
Seiji Nogiwa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical frequency sweep signal generator
Patent number
5,786,930
Issue date
Jul 28, 1998
Ando Electric Co., Ltd.
Tatsuhiko Takatsu
G02 - OPTICS