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:
Jan. 16, 1990
Filed:
Dec. 31, 1987
Applicant:
Inventors:
Assignee:
Yamaha Corporation, Shizuoka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
148101 ; 148103 ; 148105 ; 148108 ;
Abstract
In production of rare earth type magnet, addition of Nd to Fe-Gd-metalloid base containing 2 or more of B, Si, and P, combined with solidification of molten alloy by abrupt cooling assures large coercive force and high susceptibility of the product.
Iijima, Kenzaburou. (1990). Rare earth type magnet and a method for producing the same (U.S. Patent No. 4894097). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4894097
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile