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:
Jul. 15, 2025
Filed:
Jul. 02, 2020
Nisshinbo Holdings Inc., Tokyo, JP;
Yoshikazu Kobayashi, Chiba, JP;
Takeaki Kishimoto, Funabashi, JP;
Takuya Ishizuka, Chiba, JP;
Takuya Isaka, Chiba, JP;
Miki Meguro, Funabashi, JP;
NISSHINBO HOLDINGS INC., Tokyo, JP;
Abstract
A metal-supported catalyst, a battery electrode, and a battery, each having both excellent catalytic activity and durability. The metal-supported catalyst includes: a carbon carrier; and platinum particles serving as catalyst metal particles supported on the carbon carrier, wherein the platinum particles contain pure platinum particles and platinum alloy particles, wherein a proportion of a weight of the pure platinum particles to a sum of the weight of the pure platinum particles and a weight of the platinum alloy particles is 15% or more and 61% or less, and wherein a ratio of a proportion of a nitrogen atom content to a carbon atom content measured by elemental analysis using a combustion method, to a proportion of a nitrogen atom content to a carbon atom content measured by X-ray photoelectron spectroscopy, is 1.05 or more.