Yoshitake Hana

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Toyooka-mura, JP

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Patents Grantslast 30 patents

Information Patent Grant
Wear resistant copper base alloy, method of preparing the same and...
- Patent number 6,336,979
- Issue date Jan 8, 2002
- Dowa Mining Co., Ltd.
- Akira Sugawara
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Process for production of copper or copper base alloys
- Patent number 6,312,762
- Issue date Nov 6, 2001
- Dowa Mining Co., Ltd.
- Akira Sugawara
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Copper base alloys and terminals using the same
- Patent number 6,254,702
- Issue date Jul 3, 2001
- Dowa Mining Co., Ltd.
- Yoshitake Hana
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Process for the production of a coated copper alloy
- Patent number 6,180,174
- Issue date Jan 30, 2001
- Dowa Mining Co., Ltd.
- Akira Sugawara
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Hard coated copper alloys
- Patent number 6,040,067
- Issue date Mar 21, 2000
- Dowa Mining Co., Ltd.
- Akira Sugawara
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Hard coated copper alloys, process for production thereof and conne...
- Patent number 5,849,424
- Issue date Dec 15, 1998
- Dowa Mining Co., Ltd.
- Akira Sugawara
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR