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Patent applications and USPTO patent grants for Yoshihara; Ryoichi.The latest application filed is for "environmentally friendly surface treated steel sheet for electronic parts excellent in soldering wettability and resistance to rusting and formation of whisker".
Patent | Date |
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Surface treated steel sheet with less environmental impact for electronic components, excellent in solder wettability, a rust-proof property and a whisker-proof property Grant 6,818,322 - Yoshihara , et al. November 16, 2 | 2004-11-16 |
Environmentally friendly surface treated steel sheet for electronic parts excellent in soldering wettability and resistance to rusting and formation of whisker App 20040072012 - Yoshihara, Ryoichi ;   et al. | 2004-04-15 |
Resin-coated steel sheet for drawn-and-ironed cans and drawn-and-ironed cans manufactured therefrom Grant 5,714,273 - Wake , et al. February 3, 1 | 1998-02-03 |
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