Liquid ejecting head, liquid ejecting device and liquid ejecting method
CA 2174181 C · Owner: Inamoto, Tadayoshi · Inventors: Nakata, Yoshie; Sugitani, Hiroshi; Kimura, Makiko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A liquid ejecting head capable of ejecting liquids in different conditions comprises an ejection outlet for ejecting a liquid; a liquid flow path for supplying the liquid to said ejection outlet, said liquid flow path having bubble generation heat means used to eject the liquid and capable of selectively generating bubbles having different sizes; and a movable mechanism having at least one movable member arranged to face a bubble generation region formed in said liquid flow path by said bubble generation heat means. The movable member has a free end on a downstream side with respect to a direction of said ejection outlet and a supporting member on an upstream side. The movable member is …
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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 April 15, 1996 and granted July 31, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 15, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 15, 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.
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.