Izumi Kawakami

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Duplexer with an isolating circuit on a dielectric plate
- Patent number 5,015,973
- Issue date May 14, 1991
- Oki Electric Industry Co., Ltd.
- Izumi Kawakami
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Microwave filter
- Patent number 4,768,003
- Issue date Aug 30, 1988
- Oki Electric Industry Co., Inc.
- Izumi Kawakami
- H01 - BASIC ELECTRIC ELEMENTS