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:
Jun. 30, 2026
Filed:
May. 23, 2022
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 separator for a fuel cell includes a contact surface configured to contact a power generating unit of the fuel cell. Groove passages are arranged side by side in the contact surface. Reactant gas flows through the groove passages. At least one of the groove passages includes a wavy section that extends in a wavy shape in planar directions of the contact surface. An upstream portion and a downstream portion in a flow direction of the reactant gas in each groove passage are defined as an upstream portion and a downstream portion, respectively. A wavelength of the wavy section is smaller in the downstream portion than in the upstream portion.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile