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. 23, 2004
Filed:
Feb. 26, 2003
Tatsuya Inatsugu, Nagano, JP;
Shinko Electric Industries Co., Ltd., Nagano, JP;
Abstract
There are provided the steps of forming a plurality of opening portions by punching predetermined portions of a metal plate, forming crushed portions by pushing crushed margin portions, which are defined in vicinity of both side edge portions of the opening portions of the metal plate, to reduce a thickness, defining a width W between a side surface portion and a center portion to assure an interval between lead portions and also defining a width of a top end portion and a width of a base portion by punching center portions of the crushed portions except predetermined both-side portions and portions in vicinity of peripheral portions in which the crushed portions of the opening portions of the metal plate are not present, and defining the top end portions by punching a predetermined portion of the top end portion.