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. 25, 1983
Filed:
Mar. 31, 1982
Applicant:
Inventor:
Motohiro Arai, Tokyo, JP;
Assignee:
Nippon Electric Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03B / ; C03C / ;
U.S. Cl.
CPC ...
65-312 ; 427163 ;
Abstract
A collimated laser beam focuses on a substrate put in a reaction vessel which includes glass raw materials to raise the temperature high enough for the thermal reaction of the glass raw materials to form a glass layer. The repeated scanning of the glass substrate with the laser beam accumulates a plurality of layers and forms an optical waveguide on the glass substrate.