Sigeru Kajiyama

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Hitachi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Distance measuring apparatus and method
- Patent number 5,122,991
- Issue date Jun 16, 1992
- Hitachi, Ltd.
- Masahiro Koike
- G01 - MEASURING TESTING
Information Patent Grant
Guide rail apparatus for an object running around piping
- Patent number 4,515,018
- Issue date May 7, 1985
- Hitachi, Ltd.
- Sigeru Kajiyama
- G01 - MEASURING TESTING
Information Patent Grant
Ultrasonic probing apparatus
- Patent number 4,331,034
- Issue date May 25, 1982
- The Chugoku Electric Power Co., Inc.
- Hiroyuki Takeda
- G01 - MEASURING TESTING
Information Patent Grant
Ultrasonic flaw detector driving apparatus
- Patent number 4,279,158
- Issue date Jul 21, 1981
- Hitachi, Ltd.
- Sigeru Kajiyama
- G01 - MEASURING TESTING