Information input sheet
CA 1306777 C · Owner: Tanaka, Eiichi · Inventors: Moriwaki, Masafumi; Sano, Shigeaki; Tanaka, Eiichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The structure of an information input sheet to be mounted on the information input board of a written information input terminal is provided. The information input sheet is constructed of a first flexible conductive layer to which a pressure is directly applied by a writing utensil, a second conductive layer disposed facing the first conductive layer, and a plurality of insulators disposed uniformely to define a space between the first and second conductive layers. The thickness of the first conductive layer is selected to be greater than an average distance between the edges of adjacent insulators whereby as, the first conductivity layer is deformed by a pen pressure, the first …
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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 August 25, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 25, 2009.
- 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.