Radioactive ray irradiating apparatus
CA 2282983 C · Owner: Kimura, Masakazu · Inventors: Kimura, Masakazu; Hirano, Takeshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In projecting radioactive rays for sanitizing food or the like, an irradiating condition which attains a uniform dose of radioactive rays for the entire objects to be exposed is automatically determined. An X-ray CT unit 6 captures a sectional image of an object to be exposed 2, and an irradiating condition determining section 8 acquires the density distribution of the object to be exposed 2 based on the captured sectional image. The irradiating condition determining section 8 then searches for a particular irradiating condition under which the dose distribution of the radioactive rays in the object to be exposed 2 falls within a predetermined range. An irradiation controlling section 16 …
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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 September 22, 1999 and granted November 19, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 22, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 22, 2021.
- 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.