Kazuaki Hamada

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Toyama-ken, JP

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Patents Grantslast 30 patents

Information Patent Grant
Piezoelectric electroacoustic transducer
- Patent number 7,141,919
- Issue date Nov 28, 2006
- Murata Manufacturing Co., Ltd.
- Kazuaki Hamada
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Piezoelectric electroacoustic transducer and manufacturing method o...
- Patent number 7,020,295
- Issue date Mar 28, 2006
- Murata Manufacturing Co., Ltd.
- Kazuaki Hamada
- B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
Information Patent Grant
Piezoelectric electroacoustic transducer
- Patent number 6,969,942
- Issue date Nov 29, 2005
- Murata Manufacturing Co., Ltd.
- Tetsuo Takeshima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Piezoelectric electroacoustic transducer
- Patent number 6,741,710
- Issue date May 25, 2004
- Murata Manufacturing Co., Ltd.
- Tetsuo Takeshima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Piezoelectric electroacoustic transducer
- Publication number 20040183407
- Publication date Sep 23, 2004
- Murata Manufacturing Co., Ltd.
- Tetsuo Takeshima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Piezoelectric sounding body and piezoelectric electroacoustic trans...
- Publication number 20040041497
- Publication date Mar 4, 2004
- Kazuaki Hamada
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Piezoelectric electroacoustic transducer and manufacturing method o...
- Publication number 20030021458
- Publication date Jan 30, 2003
- Kazuaki Hamada
- B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL