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. 21, 2021
Filed:
Jan. 17, 2017
Kao Corporation, Tokyo, JP;
Takatoshi Niitsu, Utsunomiya, JP;
Satoshi Ueno, Utsunomiya, JP;
KAO CORPORATION, Tokyo, JP;
Abstract
Method for manufacturing fine hollow protruding tool by: bringing a projecting mold part with a heating means into contact from one surface side of a base sheet including a thermoplastic resin, and, while heat-softening the contact section, inserting the projecting mold part into the base sheet, to form a protrusion protruding from the other surface side; and, after a cooling step, withdrawing the projecting mold part from the interior of the protrusion, forming the fine hollow protruding tool. In the protrusion forming step, the protrusion is formed by using a first warp-suppressing means that suppresses warping of the base sheet when the projecting mold part is inserted into the base sheet. In the release step, the fine hollow protruding tool is formed by using a second warp-suppressing means that suppresses warping of the base sheet when the projecting mold part is withdrawn from the interior of the protrusion.