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:
Jul. 22, 1986
Filed:
Jul. 15, 1985
Applicant:
Inventors:
Kenzaburo Iijima, Shizuoka, JP;
Toshiharu Hoshi, Shizuoka, JP;
Kazumoto Asano, Shizuoka, JP;
Yoshinori Hayashi, Shizuoka, JP;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
148101 ; 148108 ; 335296 ;
Abstract
Mono-directional magnetic anisotropy given to a Fe-Cr-Co straight tube by initial heat magnetization is converted into radial magnetic anisotropy by subsequent formation of one or more flange sections through plastic deformation which is perpetuated by final age-hardening in order to obtain an excellent configuration magnet well suited for electro-acoustic converters.