Tokyo
Japan
12
2014-08-14
The entities that hold a legal rights for patent applications filed by inventor Asahi Hitoshi:
Hitoshi Asahi from Tokyo, JP has applied for patents for these inventions. The list has both pending applications and granted patents:
High strength steel pipe for line pipe superior in low temperature toughness and high strength steel plate for line pipe and methods of production of the same
#2 | 2013-05-16Oil country tubular goods with dual phase structure and producing method thereof
#3 | 2013-04-18Electric resistance welded oil country tubular goods and manufacturing method of electric resistance welded oil country tubular goods
#4 | 2012-11-22High-strength welded steel pipe and method for producing the same
#5 | 2012-05-17High-strength steel pipe and producing method thereof
#6 | 2011-02-03High strength steel plate, steel pipe with excellent low temperature toughness, and method of production of same
#7 | 2010-12-30Welded steel pipe for high strength line pipe superior in low temperature toughness and method of production of the same
#8 | 2010-09-23High strength steel pipe for line pipe superior in low temperature toughness and high strength steel plate for line pipe and methods of production of the same
#9 | 2010-05-13Steel pipe excellent in deformation characteristics and method of producing the same
#10 | 2010-04-29Method of production of electric resistance welded steel pipe and high Si or high Cr electric resistance welded steel pipe
#11 | 2010-01-07High strength thick welded steel pipe for line pipe superior in low temperature toughness and method of production of the same
#12 | 2009-04-09Steel pipe for high strength line pipe superior in strain aging resistance and steel plate for high strength line pipe and methods of production of the same
191777 ⎘