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:
Apr. 14, 2026
Filed:
May. 11, 2021
Asahi Kasei Battery Separator Corporation, Tokyo, JP;
Hitoshi Takamori, Tokyo, JP;
Takeshi Suzuki, Tokyo, JP;
Asahi Kasei Battery Separator Corporation, Tokyo, JP;
Abstract
Provided is an inspection device or a manufacturing method for a separator having a thermoplastic polymer layer. A separator S includes a substrate, and a thermoplastic polymer layer disposed on a portion of one side or both sides of the substrate. The present invention is characterized by including a step for inspecting the surface of the separator S, wherein the separator is inspected by using an inspection device having a cameraand a light sourcethat irradiates an inspection portion of the separator with light at an incident angle of 60° to 90°.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile