Acoustic transducer with honeycomb diaphragm
CA 1198807 A · Owner: Pioneer Industrial Components, Inc. · Inventors: Sashida, Iwao; Haga, Tsutomu; Melillo, Louis
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An acoustic transducer having a honeycomb-type diaphragm material, which transducer comprises a piezoelectric element and a driving element supported within a housing frame and acoustically attached by a coupling means to a honeycomb-type diaphragm flat, sheet material having a high stiffness-to-weight ratio to provide, an acoustic transducer having an efficient well-dispersed, frequency response of shallow design and improved heat conductivity.
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 December 31, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 31, 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.