Kouichi Ichikawa

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Branching filter having specific impedance and admittance character...
- Patent number 5,323,127
- Issue date Jun 21, 1994
- Oki Electric Industry Co., Ltd.
- Tomokazu Komazaki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Dielectric filter having coupling amount adjusting patterns
- Patent number 5,227,747
- Issue date Jul 13, 1993
- Oki Electric Industry Co., Ltd.
- Tomokazu Komazaki
- H01 - BASIC ELECTRIC ELEMENTS