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. 09, 2007
Filed:
Aug. 12, 2002
Hideo Kobayashi, Tokyo, JP;
Shinichi Shinohara, Tokyo, JP;
Hironobu Nishimura, Tokyo, JP;
Origin Electric Company Limited, Tokyo, JP;
Abstract
The object of the present invention is to considerably reduce the amount of heat generated in comparison with a conventional lamp to decrease the thermal effects on an optical disc in an adhesive curing method suitable for curing adhesive supplied between the substrates of a DVD or other optical disc in particular. In the adhesive curing method as claimed in the present invention, an adhesive is cured by irradiating with ultraviolet rays using semiconductor elements that emit ultraviolet rays instead of a lamp. In this case, light-emitting semiconductor elements are used that emit ultraviolet rays having a wavelength within a range in which the transmittance relative to the adhesive before curing is lower than the transmittance relative to the adhesive after curing.