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.

Date of Patent:
Mar. 20, 2012

Filed:

Apr. 14, 2008
Applicant:

Norio Tosu, Kitakyushu, JP;

Inventor:

Norio Tosu, Kitakyushu, JP;

Assignee:

Mitsui High-Tec, Inc., Kitakyushu-shi, Fukuoka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 7/06 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method of producing a laminated variant-shaped core, includes punching out core sheets-from a stripto form the outlines of the core sheets-, and push back the punched out core sheets-into the strip; forming cutoutsandreaching outer peripheries of outer platesand, the outer platesandbeing the same in outer shape and respectively containing thereinside the core sheets-, the cutoutsandhaving inner edges respectively in contact with the core sheets-; forming caulking portionsin each of the core sheets-and caulking portionsin each of the outer platesand; punching out the outer platesandfrom the stripto form the outlines of the outer platesand, and laminating and interlocking the core sheets-to form the variant-shaped laminated coreand laminating and interlocking the outer platesand; and removing the outer platesandlocated outside the laminated and interlocked variant-shaped core


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