Floating type magneto-optic disk reading head system having external semiconductor laser resonator operating at orthogonal two mode oscillations
CA 1322599 C · Owner: Fukushima, Nobuhiro · Inventors: Fukushima, Nobuhiro; Sawaki, Ippei
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A magneto-optic disk reading head system including an external semiconductor laser resonator (2 8, 7, 9, 10). A magneto-optic disk (7) forms a part of the external resonator. In the external resonator orthogonal two mode oscillations are established to produce a beat signal used for reading data stored in the magneto-optic disk. The magneto-optic disk reading head system is a floating type reading head.
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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 28, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 28, 2010.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.