Tatsuya Miyai

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Chiyoda-ku, Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Piercer plug and method of manufacturing the same
- Patent number 11,331,703
- Issue date May 17, 2022
- Nippon Steel Corporation
- Yasuyoshi Hidaka
- C21 - METALLURGY OF IRON
Information Patent Grant
Piercer plug and method of manufacturing the same
- Patent number 11,214,855
- Issue date Jan 4, 2022
- Nippon Steel Corporation
- Yasuyoshi Hidaka
- C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents

Information Patent Application
Piercer Plug and Method of Manufacturing the Same
- Publication number 20200263282
- Publication date Aug 20, 2020
- NIPPON STEEL CORPORATION
- Yasuyoshi Hidaka
- C21 - METALLURGY OF IRON
Information Patent Application
Piercer Plug and Method of Manufacturing the Same
- Publication number 20180354008
- Publication date Dec 13, 2018
- NIPPON STEEL & SUMITOMO METAL CORPORATION
- Yasuyoshi Hidaka
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...