Kobe
Japan
7
2008-08-28
The entities that hold a legal rights for patent applications filed by inventor Suda Sumie:
Sumie Suda from Kobe, JP has applied for patents for these inventions. The list has both pending applications and granted patents:
Method for producing high cleanness steel excellent in fatigue strength or cold workability
#2 | 2007-07-19Spring steel excellent in sag resistance and fatigue property
#3 | 2006-09-14Steel wire for high strength spring excellent in workability and high strength
#4 | 2006-07-20Method for producing high cleanliness steel excellent in fatigue strength or cold workability
#5 | 2006-07-11Steel wire rod for hard drawn spring, drawn wire rod for hard drawn spring and hard drawn spring, and method for producing hard drawn spring
#6 | 2006-05-25Ultra clean spring steel
#7 | 2005-08-11Steel wire for hard drawn spring excellent in fatigue strength and resistance to settling, and hard drawn spring and method of making thereof
6136770 ⎘