Method for bonding members, and disc manufacturing method and device
CA 2361447 A1 · Owner: Ebisawa, Shouei · Inventors: Ebisawa, Shouei; Ito, Daisuke
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for manufacturing discs by bonding two disc substrates using a cationic, polymerization type ultraviolet curable composition as an adhesive to produce a disc. The, method includes the steps of: applying the cationic polymerization type ultraviolet curable, composition onto a part of an adhering surface of one of the two disc substrates; radiating, ultraviolet light onto the cationic polymerization type ultraviolet curable composition;, bonding the disc substrate to the other disc substrate via the cationic polymerization type, ultraviolet curable composition which has been irradiated by the ultraviolet light; and, spreading the cationic polymerization type ultraviolet …
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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 November 6, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 6, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 6, 2023.
- 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.