Tadashi Douhara

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Takarazuka-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for producing high-alloy seamless tube
- Patent number 8,245,552
- Issue date Aug 21, 2012
- Sumitomo Metal Industries, Ltd.
- Hiroaki Murakami
- C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents

Information Patent Application
Process for Producing High-Alloy Seamless Tube
- Publication number 20110067475
- Publication date Mar 24, 2011
- Sumitomo Metal Industries, Ltd.
- Hiroaki Murakami
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...