Takaaki Ishikawa

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Sayama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Surface mount type temperature-compensated crystal oscillator
- Patent number 7,471,162
- Issue date Dec 30, 2008
- Nihon Dempa Kogyo Co., Ltd.
- Takaaki Ishikawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Crystal oscillator device, oscillation method and heater
- Patent number 7,378,916
- Issue date May 27, 2008
- Nihon Dempa Kogyo Co., Ltd.
- Takeo Oita
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
Surface mount type temperature-compensated crystal oscillator
- Publication number 20070247249
- Publication date Oct 25, 2007
- Nihon Dempa Kogyo Co., Ltd.
- Takaaki Ishikawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Crystal oscillator device, oscillation method and heater
- Publication number 20050184819
- Publication date Aug 25, 2005
- Nihon Dempa Kogyo Co., Ltd.
- Takeo Oita
- H03 - BASIC ELECTRONIC CIRCUITRY