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Patent applications and USPTO patent grants for Tsusue; Takashi.The latest application filed is for "as-rolled type k55 electric resistance welded oil well pipe and hot-rolled steel sheet".
Patent | Date |
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As-rolled type K55 electric resistance welded oil well pipe and hot-rolled steel sheet Grant 10,738,371 - Ishitsuka , et al. A | 2020-08-11 |
High strength electric resistance welded steel pipe and method for producing high strength electric resistance welded steel pipe Grant 10,640,843 - Ishitsuka , et al. | 2020-05-05 |
As-rolled Type K55 Electric Resistance Welded Oil Well Pipe And Hot-rolled Steel Sheet App 20180298475 - ISHITSUKA; Tetsuo ;   et al. | 2018-10-18 |
High Strength Electric Resistance Welded Steel Pipe, Method For Producing Steel Plate For High Strength Electric Resistance Welded Steel Pipe Use, And Method For Producing High Strength Electric Resistance Welded Steel Pipe App 20180105893 - ISHITSUKA; Tetsuo ;   et al. | 2018-04-19 |
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