Automatic focal-point adjustment method in flow imaging cytometer
CA 2039897 C · Owner: Toa Medical Electronics Co. Ltd. · Inventors: Kosaka, Tokihiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A flow imaging cytometer for imaging the dimensions and shapes of particle components in a flow of a specimen solution employs a separate control solution which is for, managing precision, containing standard particles. A method of adjusting focal point with respect to the specimen flow includes steps of imaging the standard particles in the control solution, calculating an evaluation parameter which represents the definition of the image and moving the flow, cell or associated optical system so as to maximize the value of this parameter.
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 5, 1991 and granted October 16, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 5, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 5, 2013.
- 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.