Liquid ejecting head, liquid ejecting device and liquid ejecting method
CA 2175166 C · Owner: Kimura, Makiko · Inventors: Kudo, Kiyomitsu; Yoshihira, Aya; Kashino, Toshio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A liquid ejecting method includes providing a substrate having a heat generating surface for generating heat for generating a bubble in liquid; providing a movable member having a free end; providing an ejection outlet for ejecting the liquid using the generation of the bubble the ejection outlet being opposed to the substrate with the movable member interposed therebetween; disposing the free end of the movable member at a downstream side with respect to a direction of flow of the liquid to the ejection outlet; and wherein the bubble displaces the free end of the movable member and grows toward the ejection outlet to eject the liquid.
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
- Filed April 26, 1996 and granted August 8, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 26, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 26, 2018.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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.