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:
Dec. 02, 2025
Filed:
Jan. 11, 2023
Applicant:
The Japan Steel Works, Ltd., Tokyo, JP;
Inventors:
Masaki Kato, Tokyo, JP;
Ichiro Nakajima, Tokyo, JP;
Naoaki Yoshimatsu, Tokyo, JP;
Tatsuya Hirano, Tokyo, JP;
Assignee:
THE JAPAN STEEL WORKS, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 55/16 (2006.01); B29C 48/00 (2019.01); B29C 55/20 (2006.01); B29C 48/08 (2019.01); B29C 48/28 (2019.01); B29C 48/305 (2019.01); B29C 48/88 (2019.01);
U.S. Cl.
CPC ...
B29C 55/165 (2013.01); B29C 48/0018 (2019.02); B29C 55/20 (2013.01); B29C 48/08 (2019.02); B29C 48/28 (2019.02); B29C 48/305 (2019.02); B29C 48/9135 (2019.02);
Abstract
A stretching machine configured to stretch a resin film includes a plurality of link mechanisms coupled to constitute an endless chain and a railon which the link mechanisms run. The railof the stretching machine has a slitin a side surface. The slitextends in a direction inclined with respect to a direction in which the railextends.