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Tetsuo Shoji
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Sendai, JP
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last 30 patents
Information
Patent Grant
Method for forming surface layer by electric discharge process
Patent number
4,948,625
Issue date
Aug 14, 1990
Suzuki; Masahiko
Masahiko Suzuki
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Underground chemical reactor
Patent number
4,937,052
Issue date
Jun 26, 1990
Tohoku University
Hideaki Takahashi
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Method of measuring crustal stress by hydraulic fracture based on a...
Patent number
4,665,984
Issue date
May 19, 1987
Tohoku University
Kazuo Hayashi
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method of detecting embrittlement of heat-resisting steel
Patent number
4,518,464
Issue date
May 21, 1985
Kabushiki Kaisha Toshiba
Hideaki Takahashi
G01 - MEASURING TESTING