Keiichi Hirose

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Sagamihara-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Dielectric resonator device, dielectric filter, duplexer, and high-...
- Patent number 7,274,273
- Issue date Sep 25, 2007
- Murata Manufacturing Co., Ltd.
- Keiichi Hirose
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Band-pass filter and communication apparatus
- Patent number 6,809,615
- Issue date Oct 26, 2004
- Murata Manufacturing Co., Ltd.
- Tomiya Sonoda
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Dielectric resonator device, dielectric filter, duplexer, and high-...
- Publication number 20060152302
- Publication date Jul 13, 2006
- Keiichi Hirose
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Band-pass filter and communication apparatus
- Publication number 20020163404
- Publication date Nov 7, 2002
- Murata Manufacturing Co., Ltd.
- Tomiya Sonoda
- H01 - BASIC ELECTRIC ELEMENTS