Method and apparatus for manufacturing information storage devices
CA 2181298 C · Owner: Anderson, Gary · Inventors: Russell, Robert G.; Hoover, Douglas E.; Louie, James K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus for manufacturing information storage devices. The apparatus includes a bearing insertion device a lens insertion device, a coarse coil gluing tool, a spring gluing tool, a device for gluing pole pieces a pentaprism insertion, and inspection tool a constants and transfers test, an optics module alignment device wedge, microprism and beamsplitter insertion devices a read channel alignment test, a mass balance attachment devise a position sensor alignment tool, a device for the attachment of focus and radial coils, a quality control test for testing an optical storage device prior to insertion of the objective lens and a servo system test. The method, includes steps for …
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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
- Filed July 16, 1996 and granted March 19, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 16, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 16, 2018.
- 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
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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.