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. 26, 2025
Filed:
Oct. 04, 2021
Ykk Corporation, Tokyo, JP;
Satoki Tamai, Kurobe, JP;
Takumi Arai, Kurobe, JP;
Aditya Niranjan Abhyankar, Kurobe, JP;
Mariko Nakase, Kurobe, JP;
YKK Corporation, Tokyo, JP;
Abstract
A fastener chain according to the present invention includes left and right fastener stringers. Each fastener stringer includes a fastener tape and an element row. The element row is formed of fastener elements arranged in a coil shape. The fastener tape includes an element-attached portion and a tape bent portion extending from the element-attached portion and bent in a substantially U-shape. The fastener stringers include respective restraining members in contact with the tape bent portions. Each restraining member is formed by deforming a linear member, and the linear member includes a portion extending in a direction for increasing an overall height dimension of the restraining member. Thus, even when a strong lateral pulling force is applied to the fastener tapes while the element rows are in an engaged state, the element rows can be made less visible from the outside of the fastener.