Title:
FILM FOR ELECTROMAGNETIC WAVE SHIELDING OR ELECTROSTATIC CHARGING PREVENTION
Document Type and Number:
Japanese Patent JPH01258498
Kind Code:
A
Abstract:
PURPOSE: To obtain a film which prevents the penetration of electromagnetic waves harmful to a human body by a method wherein a magnetic film is attached onto the surface of a conductive film.
CONSTITUTION: A magnetic substance film 2 is formed on the surface ot a conductive film 1 through a evaporation method or a sputtering method. The magnetic substance film 2 and the conductive film 1 have shielding effects for a magnetic field and an electric field respectively, so that an electromagnetic wave is prevented from penetrating. By these processes, a film which prevents the penetration of an electromagnetic wave harmful to a human body can be obtained.
Inventors:
MURAKAMI MITSUAKI
Application Number:
JP8540688A
Publication Date:
October 16, 1989
Filing Date:
April 08, 1988
Export Citation:
Assignee:
TOKIN CORP
International Classes:
B32B7/02; H01B5/14; H05K9/00; (IPC1-7): B32B7/02; H01B5/14; H05K9/00
Attorney, Agent or Firm:
Tan Ashida (2 outside)