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:
Sep. 18, 2001
Filed:
Feb. 22, 2000
Koito Manufacturing Co., Ltd., Tokyo, JP;
Abstract
A method and apparatus for low-cost production of a lens for a vehicular lamp formed by integrally joining a plurality of synthetic resin lens members through vibration welding. The s apparatus includes a fixed portion and a vibrating portion, each have a lens fixing jig composed of a pair of respective holding jigs. The method includes the steps of supporting the respective lens members with one of the jigs, holding a lens member between a pair of holding jigs located close together, bringing each welding portion of the respective lens members into contact with each other by moving the vibrating portion and the fixed portion close together, and integrally welding the lens members by vibrating the vibrating portion.