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:
Nov. 27, 1990
Filed:
Jul. 26, 1989
Applicant:
Inventors:
Yasuo Yamamoto, Osaka, JP;
Katsumi Hanaoka, Osaka, JP;
Masatake Hirai, Osaka, JP;
Nobuyuki Sumida, Osaka, JP;
Masatake Kokado, Osaka, JP;
Assignee:
Daihen Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
29609 ; 336213 ; 336217 ; 336234 ;
Abstract
A method for manufacturing rectangular wound cores including a step of forming at least one developed lamination body by cutting off at least one ring-like lamination body, a step for applying adhesive agent to one of cut ends of each developed lamination body, a step forming lamination blocks each of which is comprised of plural lamination units shifted in the length-wise direction by a predetermined distance and a step for jointing both ends of each of lamination unit in an overlapping state by winding each lamination block around a shaping bobbin.