The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 21, 2011
Filed:
Mar. 07, 2006
Tomonori Matsunaga, Shunan, JP;
Yuki Watahiki, Shunan, JP;
Tomonori Matsunaga, Shunan, JP;
Yuki Watahiki, Shunan, JP;
Tokuyama Corporation, Shunan-Shi, JP;
Abstract
Composition comprising 0.001-4.999 parts by mass of an organic onium salt e.g. tetraoctylammonium•bis(trifluoromethanesulfonyl)imide of formula (I): wherein Z is N or P, R, R, Rand Rare each independently C-C-hydrocarbon, providing that the ratio of the number of carbons of a group having the largest number of carbons to the number of carbons of a group having the smallest number of carbons in R, R, Rand Ris 2 or less, Xis an anion of formula (II):A-N-A  (II)wherein Aand Aare each independently fluoroacyl, and 0.001-4.999 parts by mass of a C-C-fatty acid based on 100 parts by mass of a hydrocarbon solvent, the total amount of the organic onium salt and the fatty acid being 0.01-5 parts by mass. The composition maintains high productivity without causing breakdown or reduction in reliability caused by charge in the step of finally polishing a magnetic head.