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. 18, 2010
Filed:
Feb. 14, 2006
Shiji Naoki, Okazaki, JP;
Shiji Naoki, Okazaki, JP;
Nisshinbo Industries Inc., Tokyo, JP;
Abstract
A method of manufacturing a fuel cell bipolar plate that improves dimensional accuracy even with viscous material, eliminates the need for large-scale production equipment such as a press to make a pre-formed product, and furthermore, enables manufacturing time for the fuel cell bipolar plate to be reduced. Powdered raw material A containing electrically conductive material and resin is dropped into a filling container so that a top thereof is flat. The powdered raw material A inside the filling container is then heated to form a temporary cast B, the temporary cast B is set in a mold in which a predetermined pattern is formed, and heated and compressed to form a fuel cell bipolar plate.