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:
Jan. 06, 2026
Filed:
Apr. 17, 2023
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Satoshi Nakazawa, Gotemba, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
A fuel cell includes a membrane electrode assembly, a first gas diffusion layer, a second gas diffusion layer, a support, and a cover sheet. There is a space having a distance Lbetween an end face of the support and an end face of the membrane electrode assembly. The expression of E>0.048×L/tis satisfied, where E is the elastic modulus of the cover sheet, and t is the thickness of the cover sheet. The reduction rate of voids in at least a part of a portion of the first gas diffusion layer under which the cover sheet is located with respect to voids in a portion of the first gas diffusion layer under which the cover sheet is not located is 5% or more and 25% or less.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile