Title:
METHOD FOR PRODUCING MAGNETIC FIELD SHIELDING SHEET, AND MAGNETIC FIELD SHIELDING SHEET PRODUCED THEREBY
Document Type and Number:
WIPO Patent Application WO/2020/060120
Kind Code:
A1
Abstract:
Provided is a method for producing a magnetic field shielding sheet. A method for producing a magnetic field shielding sheet according to an exemplary embodiment of the present invention is for producing a magnetic field shielding sheet separated into a plurality of pieces, and comprises the steps of: preparing a magnetic sheet made of a magnetic material and having a first area; and punch-blanking a shielding sheet, which has a second area relatively narrower than the first area, from the magnetic sheet by using a mold, so as to separate the shielding sheet from the magnetic sheet, wherein in the step of punch-blanking the shielding sheet from the magnetic sheet, at least one linear slit is formed through the inner region of the second area by means of the mold, so that the shielding sheet, while being divided in the size of the second area from the magnetic sheet, can be separated into a plurality of pieces.
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Inventors:
JANG KIL JAE (KR)
LEE DONG HOON (KR)
LEE DONG HOON (KR)
Application Number:
PCT/KR2019/011923
Publication Date:
March 26, 2020
Filing Date:
September 16, 2019
Export Citation:
Assignee:
AMOSENSE CO LTD (KR)
International Classes:
H01F41/02; B32B7/12; B32B38/04; H01F1/14; H01F27/36; H05K9/00
Foreign References:
| KR20180102528A | 2018-09-17 | |||
| KR101646169B1 | 2016-08-09 | |||
| KR20170093029A | 2017-08-14 | |||
| KR20170051570A | 2017-05-12 | |||
| JP5995137B2 | 2016-09-21 |
Attorney, Agent or Firm:
ERUUM & LEEON INTELLECTUAL PROPERTY LAW FIRM (KR)
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