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:
May. 11, 2010
Filed:
Mar. 15, 2005
Hironori Wakamatsu, Yokosuka, JP;
Masanori Nakamura, Yokosuka, JP;
Kazuyuki Shiratori, Yokohama, JP;
Hirofumi Yasuda, Yokosuka, JP;
Katsuo Suga, Yokohama, JP;
Toru Sekiba, Yokohama, JP;
Hironori Wakamatsu, Yokosuka, JP;
Masanori Nakamura, Yokosuka, JP;
Kazuyuki Shiratori, Yokohama, JP;
Hirofumi Yasuda, Yokosuka, JP;
Katsuo Suga, Yokohama, JP;
Toru Sekiba, Yokohama, JP;
Nissan Motor Co., Ltd., Yokohama-shi, Kanagawa-ken, JP;
Abstract
A method of producing catalyst powder of the present invention has a step of precipitating a transition metal particle and a base-metal compound in a reversed micelle substantially simultaneously, and a step of precipitating a noble metal particle in the reversed micelle. By this method, it is possible to obtain catalyst powder which restricts an aggregation of noble metal particles even at the high temperature and is excellent in the catalytic activity.