Information processing apparatus, and electrode substrate and information recording medium used in the apparatus
CA 2074914 C · Owner: Takeda, Toshihiko · Inventors: Takimoto, Kiyoshi; Eguchi, Ken; Takeda, Toshihiko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electrode substrate includes a substrate and an electrode layer of a noble metal crystal formed on the substrate, the noble metal crystal exhibiting a substantially linear domain boundary and a plane orientation dispersion angle in X-ray analysis of 1° or less. An information recording medium includes an electrode substrate as described above and a recording layer provided on the electrode layer. An information processing apparatus includes: an information recording medium as described above; a probe electrode arranged in close proximity to this medium; and a voltage applying circuit for applying a pulse/bias voltage between the medium and the probe electrode, information being …
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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 29, 1992 and granted December 2, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 29, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 29, 2014.
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Timeline
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.