Electron beam-excited ion beam source
CA 1252581 A · Owner: Rikagaku Kenkyusho · Inventors: Namba, Susumu; Hamagaki, Manabu; Aoyagi, Yoshinobu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electron beam-excited ion beam source having a plasma region, an accelerating cathode an electron beam, accelerating region, an accelerating anode an ion producing, region and a target cathode in this order and further, comprising means for applying a negative electric potential to the target cathode as against the accelerating cathode and an ion extracting electrode for extracting positive ions or negative ions produced in the ion producing region whereby a high current ion beam can be obtained in a low input power. - 15 -
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 April 11, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 11, 2006.
- 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.