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:
Jan. 03, 1995
Filed:
Feb. 05, 1992
Masakuni Sasaki, Tokyo, JP;
Yasushi Shimizu, Kanagawa, JP;
Teruo Yamaguchi, Kanagawa, JP;
Kiyotaka Tanaka, Kanagawa, JP;
Kabushiki Kaisha Toshiba, Kanagawa, JP;
Abstract
A method of manufacturing a separator for forming a current collector and edge plate by placing a die and an outer frame for surrounding the die on a press head, placing a thin material plate and a soft plate, and pressing the thin material plate through the soft plate. When the current collector and the edge plate are made press working, cut working and joint working such as welding, can be omitted. Accordingly, the residual stress which is intrinsic to such workings is prevented. Thus, no stress is released by the temperature rise involved in the fuel cell operation and the members of the fuel cell do not become distorted. Additionally, the method provides high productivity.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile