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Patent applications and USPTO patent grants for Sobata; Tamotsu.The latest application filed is for "phosphate coatings for metal surfaces".
Patent | Date |
---|---|
Phosphate coatings for metal surfaces Grant 5,232,523 - Endo , et al. August 3, 1 | 1993-08-03 |
Method for forming zinc phosphate film on metal surface Grant 5,221,370 - Jo , et al. June 22, 1 | 1993-06-22 |
Process for phosphating metal surfaces Grant 5,039,363 - Jo , et al. August 13, 1 | 1991-08-13 |
Metal coating pretreating agent Grant 4,994,121 - Sobata , et al. February 19, 1 | 1991-02-19 |
Corrosion resistant, coated metal laminate, its preparation and coating materials Grant 4,853,285 - Sobata , et al. August 1, 1 | 1989-08-01 |
Primer composition for a metallic material and a coating method using the same Grant 4,756,935 - Takimoto , et al. July 12, 1 | 1988-07-12 |
Corrosion resistant, coated metal laminate, its preparation and coating materials Grant 4,719,038 - Sobata , et al. January 12, 1 | 1988-01-12 |
Degreasing composition for treating metal surface Grant 4,256,601 - Sobata , et al. March 17, 1 | 1981-03-17 |
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