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:
Feb. 16, 1999
Filed:
May. 30, 1996
Yuji Okada, Toyota, JP;
Hirokazu Shirakawa, Toyota, JP;
Masamichi Okada, Toyota, JP;
Toshikatsu Hara, Nisshin, JP;
Hirohiko Sasamoto, Aichi-ken, JP;
Kazuhiro Suzuki, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Aichi Steel Works, Ltd., Tokai, JP;
Toyokin Kabushiki Kaisha, Toyota, JP;
Abstract
Dusts containing zinc and/or lead in the form of oxides and one or more reducing agents are mixed with each other before or after being introduced into a heat treatment furnace. The mixture is heated to a given temperature range under a substantial vacuum so that the zinc and/or lead in the form of oxides are reduced to zinc and/or lead in the state of pure metals and evaporated in the furnace. The evaporated zinc and/or lead are introduced into a retrieving container also under a substantial vacuum and at a given temperature where the evaporated zinc and/or lead pure metals are condensed and retrieved.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile