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:
Aug. 25, 2020
Filed:
Jan. 27, 2016
Mitsui High-tec, Inc., Kitakyushu-shi, Fukuoka, JP;
Mitsui High-tec, Inc., Kitakyushu-shi, Fukuoka, JP;
Abstract
At least one caulking group () that includes a plurality of caulking parts () with different directions is formed on a plurality of thin plates () placed in a stacked state to fix the position of the stacked thin plates (), and then a preset punching process is performed with respect to the thin plates () that have been positioned with pilot holes (). This makes it possible to perform a high-accuracy punching process when punching the plurality of thin plates () placed in a stacked state, since positional deviations between the thin plates () are avoided and pilot pins () are prevented from deforming the periphery of the pilot holes ().