Catalyst structure and method of manufacturing carbon nanotube using the same
CA 2551739 C · Owner: Hikata, Takeshi · Inventors: Hikata, Takeshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A catalyst structure (21) that allows a carbon nanotube having a desired shape and with larger length to be obtained in a stable manner and in high purity as well as a , method of manufacturing a carbon nanotube (24) using the same are provided. The , present invention relates to a catalyst structure (21) for use in manufacturing a carbon , nanotube by means of vapor deposition of crystalline carbon having a , catalytic material , that forms a ring or a whirl on its crystal growth surface (22) and further , relates to a , method of manufacturing a carbon nanotube (24) using the same. Preferably the , catalyst structure (21) is a columnar body with its upper surface serving as the …
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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 December 27, 2004 and granted March 27, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 27, 2024.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
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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.