Magnetoresistive sensing element with a projection for enhanced data reading
CA 1315876 C · Owner: Seagate Technology International · Inventors: Mowry, Gregory Stephen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A thin film magnetic data transducer has a reading data a magnetoresistive sensing element with a projection not more than about 1.5 µm. long under at least one of the poles. The projection's tip is approximately flush with the end of the pole, and because of its proximity to the medium allows greater sensitivity in reading magnetic patterns in the recording medium. As long as the length of the projection is less than about the stated dimension (length measured normal to the medium surface) the sensing element does not bread up into domains.
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 6, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 6, 2010.
- 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.