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:
Aug. 04, 1992
Filed:
Dec. 19, 1999
Applicant:
Inventor:
Chisato Yoshimura, Nagoya, JP;
Assignee:
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
385132 ; 430321 ;
Abstract
An optical wave guide array is used in an optical recording apparatus. The array comprises a clad substrate made of a resin material resistant to a UV curable resin and having a number of grooves arranged in lines on the surface thereof, core portions for optical wave guides formed by filling a UV curable resin in the respective grooves and curing the resin by irradiation of UV light, and a covering clad portion for covering the clad substrate and core portions.