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Patent applications and USPTO patent grants for Nakahashi; Tetsu.The latest application filed is for "high-strength seamless stainless steel pipe for oil country tubular goods and method for manufacturing the same".
Patent | Date |
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High-strength seamless stainless steel pipe for oil country tubular goods and method for manufacturing the same Grant 10,329,633 - Fujimura , et al. | 2019-06-25 |
High-strength stainless steel pipe Grant 10,151,012 - Eguchi , et al. Dec | 2018-12-11 |
High-strength Seamless Stainless Steel Pipe For Oil Country Tubular Goods And Method For Manufacturing The Same App 20170096722 - FUJIMURA; Kazuki ;   et al. | 2017-04-06 |
Method Of Manufacturing A High-strength Stainless Steel Pipe And A High-strength Stainless Steel Pipe App 20160215359 - Eguchi; Kenichiro ;   et al. | 2016-07-28 |
High-strength Seamless Stainless Steel Tube For Oil Country Tubular Goods And Method Of Manufacturing The Same App 20150101711 - Miyata; Yukio ;   et al. | 2015-04-16 |
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