Yasuyuki Yufu

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Variable attenuator device having substantially constant impedance
- Patent number 6,888,419
- Issue date May 3, 2005
- Hitachi Kokusai Electric, Inc.
- Yasuyuki Yufu
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
Variable attenuator device having substantially constant impedance
- Publication number 20030030507
- Publication date Feb 13, 2003
- Yasuyuki Yufu
- H03 - BASIC ELECTRONIC CIRCUITRY