Method of producing silicon carbide sintered body jig, and silicon carbide sintered body jig obtained by the production method
CA 2478657 A1 · Owner: Bridgestone Corporation · Inventors: Taguchi, Jin-Ichi; Odaka, Fumio; Motoyama, Tsuyoshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for manufacturing a silicon carbide sintered compact jig characterized in that it has (a) a step of dispersing or dissolving a SiC powder or an organic material as a C source into a solvent to prepare a mixed , powder slurry; (b) a step of pouring the mixed powder slurry into a mold and drying it, to form a green compact, (c) a step of subjecting the green compact to calcination at 1500 to 2000~C under vacuum or in an inert gas atmosphere to provide a calcinated compact, (d) a step of pre-forming the calcinated compact to prepare a pre-formed article (e) a step of impregnating the pre-, formed article with molten metallic Si by utilizing the capillary action to , thereby react …
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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 March 7, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 7, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 7, 2025.
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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.