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:
Feb. 10, 2026
Filed:
Mar. 16, 2023
Toyota Boshoku Kabushiki Kaisha, Aichi-ken, JP;
Haruyuki Aono, Aichi-ken, JP;
Satoshi Kawabe, Ichinomiya, JP;
TOYOTA BOSHOKU KABUSHIKI KAISHA, Aichi-ken, JP;
Abstract
A fuel cell stack includes stacked single cells. Each single cell includes a power generating unit, a first separator, and a second separator. The first separator includes a facing surface that faces the power generating unit. The facing surface includes first groove passages. The first groove passages include first main passages and first auxiliary passages. The second separator includes a facing surface that faces the power generating unit. The facing surface includes second groove passages. The second groove passages include second main passages and second auxiliary passages. Extending portions of at least one of a set of the first auxiliary passages or a set of the second auxiliary passages include a wavy section. The wavy section intersects with one of the extending portions of the other one of the set of the first auxiliary passages and the set of the second auxiliary passages with the power generating unit in between.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile