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:
Nov. 10, 1992
Filed:
Sep. 20, 1991
Hideaki Okayama, Tokyo, JP;
Issei Asabayashi, Tokyo, JP;
Oki Electric Industry Co., Tokyo, JP;
Abstract
A waveguide-type optical switch having a Y-branch structure composed of a Y-waveguide and branched waveguides provided with electrodes for electrically controlling the guide asynchronism thereof characterized in that the branched waveguides arranged at a converging angle of .theta..sub.1, and the Y-waveguide having a branching angle .theta..sub.2 (.theta..sub.2 >.theta..sub.1) connected to the branched waveguides. It is possible to shorten the length of the device of the Y-structured arrangement having the electrodes capable electrically of controlling the asynchronism of the branched waveguides.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile