Patents Assigned to P.M. Investments Inc. - Justia Patents Search

Patents Assigned to P.M. Investments Inc.

Digital information recording by burning conductive spots with electrical pulses in an insulating layer or a recording medium

Patent number: 5528578

Abstract: A method and apparatus for recording and playing back of a permanent digital information on a recording medium consisting of an insulating and a conductive layers of material, by creating spots of increased conductivity in the insulating layer.

Type: Grant

Filed: April 20, 1994

Date of Patent: June 18, 1996

Assignee: P.M. Investments Inc.

Inventor: Dennis Mraz