Motofumi Koyuba

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Toukai, JP

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Patents Grantslast 30 patents

Information Patent Grant
Steel pipe excellent in deformation characteristics and method of p...
- Patent number 8,920,583
- Issue date Dec 30, 2014
- Nippon Steel & Sumitomo Metal Corporation
- Hitoshi Asahi
- C21 - METALLURGY OF IRON
Information Patent Grant
Automobile strength member
- Patent number 7,648,191
- Issue date Jan 19, 2010
- Nippon Steel Corporation
- Shinya Sakamoto
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Welded steel pipe steel and welded steel pipe having good wear
- Patent number 5,538,044
- Issue date Jul 23, 1996
- Nippon Steel Corporation
- Motofumi Koyuba
- B32 - LAYERED PRODUCTS
Information Patent Grant
Line pipe having good corrosion-resistance and weldability
- Patent number 5,275,893
- Issue date Jan 4, 1994
- Nippon Steel Corporation
- Akihiro Miyasaki
- B32 - LAYERED PRODUCTS

Patents Applicationslast 30 patents

Information Patent Application
HOLLOW STABILIZER, AND STEEL PIPE FOR HOLLOW STABILIZERS AND METHOD...
- Publication number 20150176101
- Publication date Jun 25, 2015
- Tetsuo Ishitsuka
- C21 - METALLURGY OF IRON
Information Patent Application
STEEL PIPE EXCELLENT IN DEFORMATION CHARACTERISTICS AND METHOD OF P...
- Publication number 20100119860
- Publication date May 13, 2010
- Asahi Hitoshi
- C21 - METALLURGY OF IRON
Information Patent Application
High Strength Thick-Gauge Electric-Resistance Welded Steel Pipe Exc...
- Publication number 20090250146
- Publication date Oct 8, 2009
- Tetsuo Ishitsuka
- B60 - VEHICLES IN GENERAL
Information Patent Application
Automobile strength member
- Publication number 20050073170
- Publication date Apr 7, 2005
- Shinya Sakamoto
- B60 - VEHICLES IN GENERAL