Tsutomu Wakasa

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Shizuoka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Carbonaceous refractory and method of production of same and also b...
- Patent number 8,889,062
- Issue date Nov 18, 2014
- Nippon Steel & Sumitomo Metal Corporation
- Hiroyuki Inoue
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Cathode block for aluminum refining and method for production thereof
- Patent number 7,300,560
- Issue date Nov 27, 2007
- Nippon Electrode Company, Ltd.
- Yuji Yamamura
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Carbonaceous refractory and method for preparing the same
- Patent number 6,875,716
- Issue date Apr 5, 2005
- Nippon Steel Corporation
- Akio Ishii
- C21 - METALLURGY OF IRON
Information Patent Grant
Carbon refractory for blast furnace and method for manufacturing su...
- Patent number 5,576,254
- Issue date Nov 19, 1996
- Nippon Steel Corporation
- Hitoshi Nakamura
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES

Patents Applicationslast 30 patents

Information Patent Application
CABONACEOUS REFRACTORY AND METHOD OF PRODUCTION OF SAME AND ALSO BL...
- Publication number 20110298166
- Publication date Dec 8, 2011
- Hiroyuki Inoue
- C21 - METALLURGY OF IRON
Information Patent Application
Cathode block for aluminum refining and method for production thereof
- Publication number 20060131169
- Publication date Jun 22, 2006
- Yuji Yamamura
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Application
Carbonaceous refractory and method for preparing the same
- Publication number 20020183189
- Publication date Dec 5, 2002
- Akio Ishii
- C21 - METALLURGY OF IRON