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Patent applications and USPTO patent grants for Nishimura; Sanji.The latest application filed is for "process for producing fluorides of metals".
Patent | Date |
---|---|
Process for producing fluorides of metals Grant 4,741,893 - Watanabe , et al. May 3, 1 | 1988-05-03 |
Crystallizer Grant 4,678,646 - Watanabe , et al. July 7, 1 | 1987-07-07 |
Process for production of high-purity metallic iron Grant 4,497,655 - Watanabe , et al. * February 5, 1 | 1985-02-05 |
Process for recovery of waste H.sub.2 SO.sub.4 and HCl Grant 4,210,502 - Watanabe , et al. July 1, 1 | 1980-07-01 |
Process for recovery of reusable chromic acid from the waste chromic acid solution containing impurities Grant 4,144,145 - Watanabe , et al. March 13, 1 | 1979-03-13 |
Process for recovery of waste H.sub.2 SO.sub.4 and HCl Grant 4,113,588 - Watanabe , et al. September 12, 1 | 1978-09-12 |
Treatment of raw materials containing titanium Grant 4,082,832 - Watanabe , et al. April 4, 1 | 1978-04-04 |
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