Title:
PIEZOELECTRIC BASE MATERIAL, SENSOR, ACTUATOR, AND BIOMETRIC INFORMATION ACQUISITION DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/210922
Kind Code:
A1
Abstract:
This piezoelectric base material includes a long inner conductor and a piezoelectric layer covering the outer peripheral surface of the inner conductor. The piezoelectric layer has a piezoelectric thread wound around the inner conductor and an adhesive portion that holds the piezoelectric thread in a state of being wound around the outer peripheral surface of the inner conductor. The piezoelectric thread includes an optically active polypeptide fiber that represents a fiber made of an optically active polypeptide. The elastic modulus Y of the piezoelectric layer measured by a microhardness meter measurement (conforms to JIS Z 2255) is 1.0-8.0 GPa.
Inventors:
MARUKO NOBUHIRO (JP)
HORI SHIGETAKA (JP)
OZAKI KATSUTOSHI (JP)
MIZUNO SHUNYA (JP)
HORI SHIGETAKA (JP)
OZAKI KATSUTOSHI (JP)
MIZUNO SHUNYA (JP)
Application Number:
PCT/JP2022/016136
Publication Date:
October 06, 2022
Filing Date:
March 30, 2022
Export Citation:
Assignee:
MITSUI CHEMICALS INC (JP)
International Classes:
G01L1/16; H01L41/087; H01L41/09; H01L41/113; H01L41/193
Domestic Patent References:
| WO2018092886A1 | 2018-05-24 | |||
| WO2017213108A1 | 2017-12-14 | |||
| WO2017212836A1 | 2017-12-14 | |||
| WO2018092886A1 | 2018-05-24 |
Foreign References:
| JP2020036027A | 2020-03-05 | |||
| JP2014186320A | 2014-10-02 | |||
| JP2021061998A | 2021-04-22 | |||
| JP2021061999A | 2021-04-22 |
Attorney, Agent or Firm:
TAIYO, NAKAJIMA & KATO (JP)
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