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. 27, 2005
Filed:
Dec. 26, 2001
Applicants:
Toshihisa Terazawa, Anjo, JP;
Shinji Nezu, Obu, JP;
Masami Ishii, Toyota, JP;
Inventors:
Assignee:
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01M002/00 ;
U.S. Cl.
CPC ...
Abstract
A method for producing a separator for a fuel cell including, first, mixing carbon particles with thermoplastic resin particles to produce mixed particles, and kneading the mixed particles into pellets. Second, the pellets are extruded and formed into a sheet-form base material. Third, the sheet-form base material is grooved by rolling with a roller having a pattern on a peripheral surface thereof. The pattern on the roller is transferred on the separator to have a predetermined groove pattern.