Permanent magnet and process for producing the same
CA 1291868 C · Owner: Mitsui Toatsu Chemicals, Inc. · Inventors: Momotari, Yoshitaka; Nagai, Minoru; Ooe, Takashi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The permanent magnet which is excellent in moldability, capable of maintaining the dimensional stability and magnetic properties during manufacturing steps, and having good dimensional stability at high temperature, water proofness, oil resistance and solvent resistance, can be constituted by a shaped substance containing, as major ingredients, rare-earth magnet powder and, as binder materials which has been cured and the process for producing the same.
Read the whole patent
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
- Granted November 12, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 12, 2008.
- 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.