Process and apparatus for producing fine particles
CA 2771947 C · Owner: Nisshin Engineering Inc. · Inventors: Yubuta, Kazuhiro; Nakamura, Keitaroh; Fujii, Takashi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is directed to a process and apparatus wherein primary fine particles are introduced into a cyclone to be subjected to cooling and classification removing coarse particles having a particle size equal to or greater than the predetermined particle size by the classification based on a predetermined particle size and secondary fine particles having a particle size of 100 nm or less which are left upon removal of coarse particles are recovered. The treatment for forming the primary fine particles is a treatment in which a material for producing the fine particles is dispersed and then introduced into a thermal plasma flame to evaporate the material for producing the fine …
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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 September 7, 2005 and granted May 20, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 7, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.