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Title:
METAL FOIL FOR SPRING MEMBER, METHOD FOR MANUFACTURING METAL FOIL FOR SPRING MEMBER, AND SPRING MEMBER FOR ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/153501
Kind Code:
A1
Abstract:
A metal foil for a spring member having a square shape and a one-side length of 300 mm, and provided with a first region in which the spring member is formed. In the first region, the absolute value of the difference obtained by subtracting the thickness distribution in the width direction orthogonal to the rolling direction from the thickness distribution in the rolling direction, is 0.15 μm2 or less.

Inventors:
SHIMAMURA SHINICHI (JP)
KOBAYASHI AKIHIKO (JP)
AIZAWA HIROYASU (JP)
Application Number:
PCT/JP2023/004599
Publication Date:
August 17, 2023
Filing Date:
February 10, 2023
Export Citation:
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Assignee:
TOPPAN INC (JP)
International Classes:
C23F1/02; C23F1/08; F16F1/02; F16F1/18; G02B7/04; G03B5/00
Foreign References:
JP2014059345A2014-04-03
JP2014205911A2014-10-30
JP2005279738A2005-10-13
JPS59229213A1984-12-22
Attorney, Agent or Firm:
ONDA Makoto et al. (JP)
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