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. 08, 2008
Filed:
Feb. 21, 2002
Koichi Tanaka, Kanagawa, JP;
Kenji Katori, Kanagawa, JP;
Minehisa Imazato, Tokyo, JP;
Kiyoshi Yamaura, Kanagawa, JP;
Katsuya Shirai, Kanagawa, JP;
Junji Kuyama, Kanagawa, JP;
Koichi Tanaka, Kanagawa, JP;
Kenji Katori, Kanagawa, JP;
Minehisa Imazato, Tokyo, JP;
Kiyoshi Yamaura, Kanagawa, JP;
Katsuya Shirai, Kanagawa, JP;
Junji Kuyama, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A gas diffusive electrode, an electrochemical device employing same, and methods of manufacturing and using same are provided. The gas diffusive electrode includes platinum powder and carbon powder or grain, to which carbon powder or grain whose particles are provided with a water-repellent film is further mixed. The gas diffusive electrode maintains an enhanced gas permeability.