US 12,471,212 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. 30, 2023, as Appl. No. 18/496,954.
Claims priority of application No. 2022-174607 (JP), filed on Oct. 31, 2022.
Prior Publication US 2024/0147611 A1, May 2, 2024
Int. Cl. H05K 1/02 (2006.01)
CPC H05K 1/0283 (2013.01) [H05K 2201/09263 (2013.01)] 8 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 plurality of first gauge lines and at least one second gauge line having a gauge factor higher than a gauge factor of the first gauge lines, the first gauge lines and the second gauge line being provided to each of the strip portions, wherein
the strip portion of the resin base member has a plurality of curved portions and a linear portion that couples the curved portions,
the first gauge lines 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,
the first gauge lines are provided to the curved portions, and
the second gauge line is provided to the linear portion.