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.:

US 9620804 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 11, 2017

Filed:

Jun. 01, 2009
Applicants:

Takaaki Nakagawa, Kanagawa, JP;

Hideyuki Kumita, Kanagawa, JP;

Masaya Kakuta, Kanagawa, JP;

Hideki Sakai, Kanagawa, JP;

Hiroki Mita, Kanagawa, JP;

Yoshio Goto, Kanagawa, JP;

Inventors:

Takaaki Nakagawa, Kanagawa, JP;

Hideyuki Kumita, Kanagawa, JP;

Masaya Kakuta, Kanagawa, JP;

Hideki Sakai, Kanagawa, JP;

Hiroki Mita, Kanagawa, JP;

Yoshio Goto, Kanagawa, JP;

Assignee:

Sony Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 8/02 (2016.01); H01M 8/04 (2016.01); H01M 8/16 (2006.01); H01M 4/86 (2006.01); H01M 4/88 (2006.01); H01M 4/90 (2006.01); H01M 8/04119 (2016.01);
U.S. Cl.
CPC ...
H01M 8/16 (2013.01); H01M 4/8605 (2013.01); H01M 4/8892 (2013.01); H01M 4/90 (2013.01); H01M 8/04119 (2013.01); H01M 2004/8689 (2013.01); Y02E 60/527 (2013.01); Y02P 70/56 (2015.11);
Abstract

A fuel cell is provided having a structure in which a cathode and an anode face each other with an electrolyte layer therebetween. The cathode includes an electrode on which an oxygen reductase and the like are immobilized, and the electrode has pores therein, water repellency is imparted to at least part of the surface of the electrode. Water repellency is imparted by forming a water-repellent agent on the surface of the electrode. The water-repellent agent includes a water-repellent material such as carbon powder and an organic solvent such as methyl isobutyl ketone that causes phase separation with water. When the electrode has pores therein, there are provided a fuel cell that stably provides a high current value and a method for manufacturing the fuel cell.


Find Patent Forward Citations

Nakagawa, Takaaki. (2017). Fuel cell and method for manufacturing the same, electronic apparatus, enzyme-immobilized electrode and method for manufacturing the same, water-repellent agent, and enzyme-immobilizing material (U.S. Patent No. 9620804). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9620804

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