Junya YAMAMOTO

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Nakano-ku, Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Spring steel and method for producing the same
- Patent number 10,202,665
- Issue date Feb 12, 2019
- Nippon Steel & Sumitomo Metal Corporation
- Masayuki Hashimura
- B22 - CASTING POWDER METALLURGY

Patents Applicationslast 30 patents

Information Patent Application
STEEL MATERIAL EXCELLENT IN ROLLING FATIGUE PROPERTY
- Publication number 20200216937
- Publication date Jul 9, 2020
- NIPPON STEEL CORPORATION
- Koji WATARI
- C21 - METALLURGY OF IRON
Information Patent Application
SPRING STEEL AND METHOD FOR PRODUCING THE SAME
- Publication number 20170044633
- Publication date Feb 16, 2017
- NIPPON STEEL & SUMITOMO METAL CORPORATION
- Masayuki HASHIMURA
- C21 - METALLURGY OF IRON