Misao Shimizu

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Musashino, JA

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Patents Grantslast 30 patents

Information Patent Grant
Data communication system using photocouplers
- Patent number 4,046,959
- Issue date Sep 6, 1977
- Kabushikikaisha Yokogawa Denki Seisakusho
- Kazutaka Watanabe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Redundancy system for data communication
- Patent number 4,017,828
- Issue date Apr 12, 1977
- Yokogawa Electric Works, Ltd.
- Kazutaka Watanabe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE