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:
Sep. 16, 2008
Filed:
Jul. 25, 2003
Hiyoshi Ishikawa, Aichi, JP;
Shigeki Eguchi, Aichi, JP;
Hiyoshi Ishikawa, Aichi, JP;
Shigeki Eguchi, Aichi, JP;
Inoac Corporation, Aichi, JP;
Arai Seisakusho Co., Ltd., Aichi, JP;
Abstract
In a method of working a recessed portionin a headrest staywhich is provided in the stay portionof the headrest stayformed of a pipe, a recess' is preformed by pressing against the stay portionan outer peripheral portionof a first punch rollerfor preforming having a rounded portionon the outer peripheral portionin a side view. Subsequently, an outer peripheral portionof a second punch rolleron the outer periphery portionof which a punch portion for final forming has been formed is directed toward and pressed against the recessso as to form a recessed portion