Image pickup tube
CA 1181460 A · Owner: Sony Corporation · Inventors: Tagawa, Susumu; Yamanaka, Hideo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An image pickup tube in which a face plate is provided on one surface with a color stripe filter and a thin glass plate is sequentially provided on its one surface with a transparent conductive layer and a photoconductive layer and in which the face plate and the thin glass plate are bonded together and then sealed to an envelope by means of sealing material and an electron gun is located within the envelope to scan the photoconductive layer. In the invention the thin, glass plate is made of alumino-silicate glass which results in a tube greatly superior to existing tubes.
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 January 22, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 22, 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.