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:
Feb. 16, 1993
Filed:
Dec. 31, 1991
Seiko Epson Corporation, Tokyo, JP;
Abstract
An anisotropic magnetic alloy having a columnar macrostructure is provided. The magnetic alloy is prepared by melting and casting an R-Fe-B alloy in order to make a magnetic alloy having a columnar macrostructure and heat treating the cast alloy at a temperature of greater than or equal to about 250.degree. C. in order to magnetically harden the magnetic alloy. Alternatively, the cast alloy can be hot processed at a temperature greater than or equal to about 500.degree. C. in order to align the axes of the crystal grains in a specific direction and make the magnetic alloy anisotropic. In another embodiment, the cast alloy can be hot processed at a temperature of greater than or equal to about 500.degree. C. and then heat treated at a temperature of greater than or equal to about 250.degree. C.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile