Method of and apparatus for analyzing degrees of granule grinding
CA 2056017 C · Owner: Hosaka, Yukio · Inventors: Ishii, Takeshi; Satake, Satoru; Hosaka, Yukio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of analyzing degrees of granule grinding includes steps of: passing granules between a coherent-light emitter and a light receiver directly, receiving a coherent light emitted from the coherent-light emitter; measuring the time, of each of the granules intercepting the coherent light and the frequency of , such, interception; and analyzing the measured granules by arithmeticallyprocessing the, intercepted time, frequencies and predetermined coefficients. An apparatus for carrying out such method includes a passage for granules to pass through and , to, intercept, the coherent light between the coherent-light emitter and the light receiver, a counter for counting from outputs of …
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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 22, 1991 and granted April 4, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 22, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 22, 2013.
- 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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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.