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Patent applications and USPTO patent grants for Hasegawa; Toshiei.The latest application filed is for "flux cored wire for gas shielded arc welding of high strength steel".
Patent | Date |
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Crude oil tank fabricated from steel plate Grant 7,922,838 - Usami , et al. April 12, 2 | 2011-04-12 |
Flux Cored Wire For Gas Shielded Arc Welding Of High Strength Steel App 20110073570 - Shimura; Ryuichi ;   et al. | 2011-03-31 |
Crude oil tank comprising a corrosion resistant steel alloy Grant 7,875,130 - Usami , et al. January 25, 2 | 2011-01-25 |
Steel for Crude Oil Tank, Method for Producing the Same, Crude Oil Tank and Corrosion Prevention Method Thereof App 20100003161 - Usami; Akira ;   et al. | 2010-01-07 |
High-strength thick steel plate excellent in low temperature toughness at heat affected zone resulting from large heat input welding App 20070181223 - Ito; Minoru ;   et al. | 2007-08-09 |
Steel for crude oil tank, method for producing the same, crude oil tank and corrosion prevention method therefor App 20050230012 - Usami, Akira ;   et al. | 2005-10-20 |
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