US 12,471,211 B2
Stretchable device
Takumi Sano, Tokyo (JP); and Masatomo Hishinuma, Tokyo (JP)
Assigned to MAGNOLIA WHITE CORPORATION, Tokyo (JP)
Filed by Magnolia White Corporation, Tokyo (JP)
Filed on Oct. 23, 2023, as Appl. No. 18/491,810.
Claims priority of application No. 2022-171666 (JP), filed on Oct. 26, 2022.
Prior Publication US 2024/0147610 A1, May 2, 2024
Int. Cl. H05K 1/00 (2006.01); H05K 1/02 (2006.01)
CPC H05K 1/0283 (2013.01) [H05K 1/0269 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A stretchable device comprising:
a resin base member comprising a plurality of island-shaped portions spaced apart from each other and a plurality of strip portions that couple the island-shaped portions; and
a first gauge line and a second gauge line having a gauge factor higher than a gauge factor of the first gauge line, the first gauge line and the second gauge line being provided to each of the strip portions, wherein
the first gauge line and the second gauge line each extend along an extending direction of the strip portion and are coupled along the extending direction of the strip portion, and
the length of the second gauge line along the extending direction of the strip portion is shorter than the length of the first gauge line along the extending direction of the strip portion.