Electric sleep inducer and method for applying it
CA 1196062 A · Owner: Homer Ion Laboratory Co. Ltd. · Inventors: Matsumoto, Junji; Kamiya, Syohei; Sugihara, Yasuhiko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electric sleep inducer comprises for acceleration of sleep induction and for avoidance of photopsia galvanic sensation and other complications for the testee a control circuit arranged to produce a therapeutic waveform output which is applied at frequencies controlled nonstepwise to gradually decrease from 14 Hz to 0 Hz and adapted to a sleeping electroencephalogram; and cathode and anode conductor elements for applying the therapeutic wave-form output of the control circuit to the head. Pulses of 0.2 to 0.5 msec and 3 to 4 V are applied by an anode conductor element to the occiput and a cathode conductor element to the sinciput of the testee; the therapeutic wave-form output is applied …
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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
- Granted October 29, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 29, 2002.
- 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.