Kenshu Watanabe

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Mito, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of detecting liquid leakage
- Patent number 4,749,855
- Issue date Jun 7, 1988
- Doryokuro Kakunenryo Kaihatsu Jigyodan
- Kenshu Watanabe
- G01 - MEASURING TESTING
Information Patent Grant
System and method of confirming operation of a steam relieving safe...
- Patent number 4,648,425
- Issue date Mar 10, 1987
- Doryokuro Kakunenryo Kaihatsu Jigyodan
- Kenshu Watanabe
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...