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:
Sep. 19, 1989
Filed:
May. 16, 1988
Applicant:
Inventors:
Koji Hashimoto, Sendai-shi, Miyagi, JP;
Toshihisa Kanda, Sendai, JP;
Asahi Kawashima, Sendai, JP;
Katsuhiko Asami, Sendai, JP;
Assignees:
Yanmar Diesel Engine Co., Ltd., Osaka, JP;
Other;
Primary Examiner:
Int. Cl.
CPC ...
H01M / ;
U.S. Cl.
CPC ...
429 40 ; 204292 ; 428613 ; 502315 ; 429 42 ;
Abstract
A highly active powder catalyst with a high concentration of platinum group elements prepared from an amorphous alloy consisting of at least one of valve metals, at least one of platinum group elements and balance being at least one element selected from Ni and Co by immersion in a hydrofluoric acid, and a highly active electrode prepared by using the above mentioned powder catalyst.