Akira Hirai

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Kyoto, JP

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Patents Grantslast 30 patents

Information Patent Grant
Signal processing unit
- Patent number 4,719,581
- Issue date Jan 12, 1988
- Mitsubishi Denki Kabushiki Kaisha
- Hidenobu Sakamoto
- G01 - MEASURING TESTING

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Patents Applicationslast 30 patents

Information Patent Application
Powder-sintered multi-layer tool part and manufacturing method thereof
- Publication number 20050089710
- Publication date Apr 28, 2005
- Akira, HIRAI
- Keita Hirai
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...