US 12,453,003 B2
Stretchable device
Takumi Sano, Tokyo (JP); Masatomo Hishinuma, Tokyo (JP); Yasushi Tomioka, Tokyo (JP); Akio Murayama, Tokyo (JP); and Shinichiro Oka, Tokyo (JP)
Assigned to MAGNOLIA WHITE CORPORATION, Tokyo (JP)
Filed by Magnolia White Corporation, Tokyo (JP)
Filed on Oct. 4, 2023, as Appl. No. 18/480,507.
Claims priority of application No. 2022-162260 (JP), filed on Oct. 7, 2022.
Prior Publication US 2024/0121893 A1, Apr. 11, 2024
Int. Cl. H05K 1/02 (2006.01)
CPC H05K 1/0283 (2013.01) [H05K 2201/10151 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A stretchable device comprising:
a resin base member; and
a signal line and a strain gauge stacked on the resin base member, wherein
the resin base member comprises:
a plurality of bodies disposed separately from each other; and
a plurality of hinges that couple the bodies while meandering,
the hinges each comprise:
a plurality of bends that bend and are disposed between the bodies; and
a base that linearly extends to couple one of the bodies to a corresponding one of the bends,
the signal line comprises:
a bend signal line stacked on the bends; and
a base signal line stacked on the base, and
the base signal line has an occupied area per unit length in a length direction of the signal line larger than the bend signal line when viewed in a stacking direction in which the signal line is stacked on the resin base member.