Disk drive apparatus
CA 1311047 C · Owner: Sony Corporation · Inventors: Tsukahara, Nobuhiko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
2? -, ABSTRACT OF THE DISCLOSURE, A disk drive apparatus is provided with a center positioning pin engageable with a center positioning aperture of a magnetic disk and a drive pin, establishing positioning and driving engagement with a driving and positioning opening formed in the disk. The drive pin is supported by a resilient member which is resiliently deformable and is pivotable retative to a turntable. The resilient member is preferably so arranged to cause pivotal movement of the drive pin to have substantially greater radial motion component in comparison with peripheral motion component or to, permit inclination of the drive pin relative to a vertical axis at least in a direction …
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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 December 1, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 1, 2009.
- 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.