Ryoichi Sakai

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Variable frequency signal generating method
- Patent number 5,424,667
- Issue date Jun 13, 1995
- Sony/Tektronix Corporation
- Ryoichi Sakai
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Apparatus for measuring characteristics or electronic devices
- Patent number 4,782,290
- Issue date Nov 1, 1988
- Sony/Tektronix, Inc.
- Ryoichi Sakai
- G01 - MEASURING TESTING
Information Patent Grant
Apparatus for measuring characteristics of electronic devices
- Patent number 4,727,318
- Issue date Feb 23, 1988
- Sony/Tektronix Corporation
- Ryoichi Sakai
- G01 - MEASURING TESTING