Method of forming ferrite film on particles or fibers
CA 1306901 C · Owner: Oishi, Masao · Inventors: Oishi, Masao; Saito, Takao; Ishikawa, Katsukiyo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract:, The present invention is directed to a ferrite film forming method for particulate or fibrous substrates wherein, an oxidizer solution is added to a deoxidized solution containing at least ferrous ions and particulate and/or fibrous substances, to obtain ferrite thin film on the particulate and/or fibrous substrates.
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 September 1, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 1, 2009.
- 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.