Piezoelectric body manufacturing method, piezoelectric body, ultrasonic probe, ultrasonic diagnosing device, and nondestructive inspection device
CA 2467686 A1 · Owner: Matsushita Electric Industrial Co. Ltd. · Inventors: Sugiyama, Yoshiyuki; Sato, Toshiharu; Amemiya, Kiyohide
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A piezoelectric body manufacturing method for realizing a highly reliable ultrasonic diagnosis by using one or more piezoelectric bodies of a same shape accurately manufactured so as to provide a thickness distribution the , piezoelectric bodies, an ultrasonic probe an ultrasonic diagnosing device, and a nondestructive inspection device the method comprising a piezoelectric precursor forming step for forming the mixture of piezoelectric material made of piezoelectric ceramics powder with binder dissolved in solvent in a sheet with a thickness of several ten microns to several hundred microns by a doctor blade method, piezoelectric precursor laminating steps (a) and (b) for laminating …
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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 November 21, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 21, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 21, 2024.
- 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.