Composite material including alpha alumina fibers
CA 1185463 A · Owner: Toyota Jidosha Kabushiki Kaisha · Inventors: Miyake, Joji; Fuwa, Yoshio; Donomoto, Tadashi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fiber reinforced metal type composite material. The reinforcing fiber is alumina fiber formed from at least 80% by weight alumina and the remainder silica, with the alpha alumina content of the alumina approximately between about 5% and about 60% by weight of the total amount of alumina. The matrix metal is selected from the group consisting of aluminum, magnesium, and their alloys. Thereby mechanical strength resistance to wear, and workability of the fiber reinforced metal type composite material are good, and also friction wear on elements which frictionally rub against and mate with components made of the fiber reinforced metal type composite material is low.
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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
- Granted April 16, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 16, 2002.
- 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.