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. 24, 2006
Filed:
Apr. 11, 2003
Tomohiro Sakai, Obu, JP;
Masami Hirata, Obu, JP;
Kanehiro Fukaya, Obu, JP;
Hideo Nakamura, Toyota, JP;
Tomohiro Sakai, Obu, JP;
Masami Hirata, Obu, JP;
Kanehiro Fukaya, Obu, JP;
Hideo Nakamura, Toyota, JP;
Aisan Kogyo Kabushiki Kaisha, Obu, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
To weld a filter made of a laser beam-transmittable fiber material to a case made of a laser beam-nontransmittable resin material by a laser beam the filter is first placed on the case; subsequently, the filter is pressurized by a jig to increase the fiber density of a welding portion; and then the welding portion is irradiated by the laser beam. In the step of increasing the fiber density, a periphery of the welding portion is pressurized by the jig to increase the fiber density of the filter in a larger area than the welding portion. Accordingly, the laser beam transmitting through the filter melts a part of the case, and the melted resin material permeates through gaps between the fibers constituting the filter, thereby welding the welding portion to the case.