Crystal growth method and solid-state component and apparatus for crystal growth employed therefor
CA 2259030 C · Owner: Sumitomo Metal Industries, Ltd. · Inventors: Sanjoh, Akira
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for accelerating the crystallization of biopolymers such as a protein. A crystalline silicon element (70) controlled in the valence electrons in such a way that the concentration of holes or electrons present on the surface can be controlled in accordance with the conditions of a buffer solution (72) containing a biopolymer such as a protein is brought into contact with the solution (72) to thereby crystallize the biopolymer on the surface of the element (70); a plurality of grooves or hollows different in size are formed on the element (70) and the valence electrons are controlled in such a way that the crystallization of the biopolymer in the grooves or hollows can be conducted …
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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 June 23, 1997 and granted March 5, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 23, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 23, 2019.
- 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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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.