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Shinji Sonoda
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Hitachi, JP
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last 30 patents
Information
Patent Grant
Gas governor apparatus and gas piping system
Patent number
4,915,349
Issue date
Apr 10, 1990
Hitachi, Ltd.
Tomoaki Inoue
G05 - CONTROLLING REGULATING
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Patent Grant
Method and system for detecting an object with a radio wave
Patent number
4,706,031
Issue date
Nov 10, 1987
Hitachi, Ltd.
Yoshihiro Michiguchi
G01 - MEASURING TESTING
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Patent Grant
Moving apparatus for a hollow curved pipe-arrangement and an operat...
Patent number
4,644,791
Issue date
Feb 24, 1987
Hitachi, Ltd.
Shinji Sonoda
G01 - MEASURING TESTING
Information
Patent Grant
Chain-like self-moving robot and control system therefor
Patent number
4,621,532
Issue date
Nov 11, 1986
Hitachi, Ltd.
Atsushi Takagi
B08 - CLEANING