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:
Mar. 31, 2026
Filed:
Apr. 09, 2021
Kyocera Corporation, Kyoto, JP;
KYOCERA Corporation, Kyoto, JP;
Abstract
A cell stack device includes cells, a metal member containing chromium, a covering layer, and a bonding material. The cells include a first cell and the cells includes respective element portions. The covering layer covers the metal member. The bonding material is positioned between the first cell and the covering layer. The cell stack device satisfies any one of (1) The covering layer includes at least two portions having different thicknesses or different surface roughnesses at different positions. (2) A surface roughness of the covering layer is different from that of the metal member. (3) At least one element selected from the group consisting of Mn, Ti, Ca, and Al is positioned at the interface between the metal member and the covering layer, and the content ratio of the at least one element at the interface is different from that of the metal member or the covering layer.