Fixing substrate for optical fibers
CA 1193477 A · Owner: Nippon Sheet Glass Co. Ltd. · Inventors: Kishimoto, Takashi; Yamasaki, Tetsuya
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The substrate structure is designed such that a base plate of silicon single crystal is provided with at least a first groove for a lens of the graded index type and a second groove for an optical fiber. The base plate has a surface corresponding in plane to the {100} plane of the single crystal, and the grooves have the side walls corresponding in plane to the {111} planes thereof. This structure is given with high accuracy and with ease and permits a high accurate and easy assembly of the optical fiber and the lens.
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted September 17, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 17, 2002.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.