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:
Dec. 26, 2006
Filed:
Oct. 25, 2002
Koichiro Hinokuma, Kanagawa, JP;
Bjoern Pietzak, Kanagawa, JP;
Constance Gertrud Rost, Kanagawa, JP;
Masafumi Ata, Kanagawa, JP;
Yongming LI, Kanagawa, JP;
Kazuaki Fukushima, Kanagawa, JP;
Koichiro Hinokuma, Kanagawa, JP;
Bjoern Pietzak, Kanagawa, JP;
Constance Gertrud Rost, Kanagawa, JP;
Masafumi Ata, Kanagawa, JP;
Yongming Li, Kanagawa, JP;
Kazuaki Fukushima, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
An ionic conductor, such as a proton conductor, a process for production thereof, and an electrochemical device, such as fuel cell, that includes the ionic conductor is provided. The ionic conductor of the present invention is formed from a polymer in which carbon clusters having ion dissociating functional groups are bonded to each other through connecting groups which can also include one or more ion dissociating functional groups. In this regard, the polymer is less water-soluble and more chemically stable than a derivative composed solely of carbon clusters, thus displaying enhanced ionic conduction properties.