Koichi TANGO

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Yokohama-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Steel for high-strength spring, method for producing same, and high...
- Patent number 9,404,547
- Issue date Aug 2, 2016
- NHK Spring Co., Ltd.
- Hideki Okada
- C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents

Information Patent Application
CARBURIZATION DEVICE AND CARBURIZATION METHOD
- Publication number 20180080113
- Publication date Mar 22, 2018
- National University Corporation Yokohama National University
- Wataru NAKAO
- C21 - METALLURGY OF IRON
Information Patent Application
STEEL FOR HIGH-STRENGTH SPRING, METHOD FOR PRODUCING SAME, AND HIGH...
- Publication number 20130240093
- Publication date Sep 19, 2013
- NHK Spring Co., Ltd.
- Hideki OKADA
- C21 - METALLURGY OF IRON