Toshio Yamakawa

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Tosu, JP

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Patents Grantslast 30 patents

Information Patent Grant
composite magnetic compacts and their forming methods
- Patent number 5,002,727
- Issue date Mar 26, 1991
- Agency of Industrial Science and Technology
- Kunio Okimoto
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Composite magnetic compacts and their forming methods
- Patent number 4,952,331
- Issue date Aug 28, 1990
- Agency of Industrial Science and Technology
- Kunio Okimoto
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Apparatus for forming plate with a double-curved surface
- Patent number 4,770,017
- Issue date Sep 13, 1988
- Agency of Industrial Science and Technology
- Isamu Yamashita
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method for bonding of a porous body and a fusion-made body
- Patent number 4,412,643
- Issue date Nov 1, 1983
- Director-General of the Agency of Industrial Science and Technology
- Tomio Sato
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR