Tsutomu Haratani

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Kitakyushu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Annealing separator having excellent reactivity for grain-oriented...
- Patent number 5,685,920
- Issue date Nov 11, 1997
- Nippon Steel Corporation
- Osamu Tanaka
- C21 - METALLURGY OF IRON
Information Patent Grant
Process for production of grain oriented electrical steel sheet hav...
- Patent number 5,512,110
- Issue date Apr 30, 1996
- Nippon Steel Corporation
- Yasunari Yoshitomi
- C21 - METALLURGY OF IRON
Information Patent Grant
Grain oriented electrical steel sheet having high magnetic flux den...
- Patent number 5,507,883
- Issue date Apr 16, 1996
- Nippon Steel Corporation
- Osamu Tanaka
- C21 - METALLURGY OF IRON
Information Patent Grant
Process for producing grain-oriented electrical steel strip having...
- Patent number 5,261,972
- Issue date Nov 16, 1993
- Nippon Steel Corporation
- Katsuro Kuroki
- C21 - METALLURGY OF IRON
Information Patent Grant
Process for producing grain-oriented electromagnetic steel strip
- Patent number 4,406,715
- Issue date Sep 27, 1983
- Nippon Steel Corporation
- Tadashi Nakayama
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Process for producing grain-oriented silicon steel strip
- Patent number 4,339,287
- Issue date Jul 13, 1982
- Nippon Steel Corporation
- Fumio Matsumoto
- C21 - METALLURGY OF IRON