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:
Mar. 18, 2025
Filed:
Jan. 29, 2021
Daiwa Can Company, Chiyoda-ku, JP;
Masahiro Shiotani, Sagamihara, JP;
DAIWA CAN COMPANY, Chiyoda-ku, JP;
Abstract
A manufacturing method of a plate member, in which a strip material can be positioned with respect to a die all through stamping operations using a pilot hole formed in an initial phase of the stamping operations. The plate member is manufactured by a press machine in which a progressive stamping die having a plurality of stations is placed. The manufacturing method comprises: forming an oval pilot holein an uncoiled strip; and stamping the uncoiled stripby a plurality of operations while bringing a pilot pininto contact with an inner edge of the pilot holeat the operation before the pilot holeis displaced, and at the operation after the pilot holeis displaced.