US 11,904,358 B2
Dielectric elastomer transducer
Seiki Chiba, Tokyo (JP); Mikio Waki, Sakura (JP); Mitsugu Uejima, Tokyo (JP); and Makoto Takeshita, Tokyo (JP)
Assigned to Seiki Chiba, Tokyo (JP); Mikio Waki, Sakura (JP); and ZEON CORPORATION, Tokyo (JP)
Appl. No. 17/596,762
Filed by Seiki Chiba, Tokyo (JP); Mikio Waki, Sakura (JP); and ZEON CORPORATION, Tokyo (JP)
PCT Filed Jun. 17, 2020, PCT No. PCT/JP2020/023695
§ 371(c)(1), (2) Date Dec. 17, 2021,
PCT Pub. No. WO2020/262129, PCT Pub. Date Dec. 30, 2020.
Claims priority of application No. 2019-116435 (JP), filed on Jun. 24, 2019.
Prior Publication US 2022/0314276 A1, Oct. 6, 2022
Int. Cl. B06B 1/02 (2006.01)
CPC B06B 1/0292 (2013.01) 2 Claims
OG exemplary drawing
 
1. A dielectric elastomer transducer comprising:
a dielectric elastomer layer; and
a pair of electrode layers sandwiching the dielectric elastomer layer, wherein
the electrode layers contain a binder and carbon black, the carbon black having a particle size distribution as measured by dynamic light scattering in which not less than 95% falls in a range of 0.15 to 8.0 μm, the carbon black having a particle size as measured by laser scattering ranging from 0.4 to 50 μm, and the particle size distribution of the carbon black as measured by dynamic light scattering having a first peak that falls in a first range of 0.15 to 1.0 μm and a second peak that falls in a second range of 1.0 μm to 8.0 μm.