Shigeru Fujiwara

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Patents Grantslast 30 patents

Information Patent Grant
Remote field eddy current sensor for detecting flaws in metal material
- Patent number 5,461,312
- Issue date Oct 24, 1995
- Tokyo Gas Co., Ltd.
- Yasuharu Hosohara
- G01 - MEASURING TESTING
Information Patent Grant
Remote field eddy current flaw detector for metal material includin...
- Patent number 5,365,169
- Issue date Nov 15, 1994
- Tokyo Gas Co., Ltd.
- Yasuharu Hosohara
- G01 - MEASURING TESTING
Information Patent Grant
Remote field eddy current flaw detector for metal pipes having a pa...
- Patent number 5,210,492
- Issue date May 11, 1993
- Tokyo Gas Co., Ltd.
- Yasuharu Hosohara
- G01 - MEASURING TESTING