Patent · US Expired

Sticker shielding against electromagnetic wave

US6219419A · kind A · utility

3Cited by
2References
6Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMay 27, 1998
Grant dateApr 17, 2001
Priority date
Expiry dateMay 27, 2018

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04M1/0202
  • WIPO fieldTelecommunications
  • WIPO sectorElectrical engineering

Abstract

A shielding sticker for use on a cellular phone against electromagnetic waves generated by the phone and having negative influence on a person using such a phone is made up of a conductive shielding screen and a conductive ring. The conductive shielding screen is woven by fiber reeled from a mixed material composed of carbon, lead and sodium. The conductive ring is made of a metal or non-mental material. The conductive shielding screen is adhered to the conductive ring by a conductive adhesive to produce an integral sticker shielding against electromagnetic waves produced by a cellular phone in operation.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.