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:
Oct. 06, 2009
Filed:
Jun. 01, 2005
Kouji Kume, Chita-gun, JP;
Yoshihisa Sanami, Obu, JP;
Kouji Kume, Chita-gun, JP;
Yoshihisa Sanami, Obu, JP;
Toyota Boshoku Kabushiki Kaisha, Kariya, JP;
Abstract
The present invention relates to a producing method of a laminated filter that carries out a corrugating operation and an adhering operation of filter media in the same step. A corrugation forming apparatus () sandwiches first and second filter media () in their superposed state, and heats and presses the first and second filter media () at the softening temperature of the second filter medium () to corrugate the filter media (), and thermally adheres the first and second filter media () to each other. With this, it is possible to carry out the corrugating operation and the adhering operation of the first and second filter media () in the same step.