Hajime Osako

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Wakayama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of manufacturing seamless pipe and tube
- Patent number 8,601,852
- Issue date Dec 10, 2013
- Nippon Steel & Sumitomo Metal Corporation
- Hajime Osako
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for producing duplex stainless steel pipe, method for straig...
- Patent number 8,006,528
- Issue date Aug 30, 2011
- Sumitomo Metal Industries, Ltd.
- Hajime Osako
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
High strength seamless steel pipe excellent in hydrogen-induced cra...
- Patent number 7,416,617
- Issue date Aug 26, 2008
- Sumitomo Metal Industries, Ltd.
- Nobutoshi Murao
- C21 - METALLURGY OF IRON
Information Patent Grant
Process for producing high-strength seamless steel pipe having exce...
- Patent number 5,938,865
- Issue date Aug 17, 1999
- Sumitomo Metal Industries, Ltc.
- Kunio Kondo
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

Information Patent Application
Method for producing duplex stainless steel pipe, method for straig...
- Publication number 20100005848
- Publication date Jan 14, 2010
- Hajime Osako
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Cooling method of a steel pipe
- Publication number 20090183805
- Publication date Jul 23, 2009
- Hajime Osako
- C21 - METALLURGY OF IRON
Information Patent Application
Method of manufacturing seamless pipe and tube
- Publication number 20090038358
- Publication date Feb 12, 2009
- Hajime Osako
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
High strength seamless steel pipe excellent in hydrogen-induced cra...
- Publication number 20080283161
- Publication date Nov 20, 2008
- Nobutoshi Murao
- C21 - METALLURGY OF IRON
Information Patent Application
Seamless steel tubes and pipes for use in oil well
- Publication number 20060231168
- Publication date Oct 19, 2006
- Keiichi Nakamura
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
High strength seamless steel pipe excellent in hydrogen-induced cra...
- Publication number 20050167013
- Publication date Aug 4, 2005
- Nobutoshi Murao
- C21 - METALLURGY OF IRON