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:
Mar. 13, 1990
Filed:
Dec. 02, 1987
Applicant:
Inventors:
Kenzaburou Iijima, Hamamatsu, JP;
Takeo Sata, Hamamatsu, JP;
Assignee:
Yamaha Corporation, Shizuoka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
148302 ; 420 83 ; 420121 ;
Abstract
A rare earth magnet article of the Fe-B type is provided herein characterized by consisting essentially of the three rare earth elements Nd-Pr-Ce in combination within defined atom ratios of each in the formula: