Yoshimasa Ohyama

Follow

Person

Nikko, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Copper alloy with punchability, and a manufacturing method thereof
- Patent number 6,482,276
- Issue date Nov 19, 2002
- The Furukawa Electric Co., Ltd.
- Takao Hirai
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Copper alloy for electronic instruments
- Patent number 5,021,105
- Issue date Jun 4, 1991
- The Furukawa Electric Co., Ltd.
- Makoto Asai
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents

Information Patent Application
Copper alloy with punchability, and a manufacturing method thereof
- Publication number 20010052377
- Publication date Dec 20, 2001
- Takao Hirai
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...