Title:
VIBRATION GENERATION DEVICE AND TACTILE SENSATION GENERATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/057679
Kind Code:
A1
Abstract:
A vibration generation device comprises: piezoelectric elements 10a, 10b that include a piezoelectric layer and a first electrode and a second electrode sandwiching the piezoelectric layer, and that expand and contract in the direction in which the first electrode and the second electrode sandwich the piezoelectric layer due to a voltage being applied between the first electrode and the second electrode; and a casing 25 that includes a first member 30 and a second member 20 sandwiching the piezoelectric elements in said direction, the first member and the second member exerting pressure on the piezoelectric elements in said direction, and the first member outputting sound waves corresponding to the expansion and contraction of the piezoelectric elements in said direction.
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Inventors:
ISHII SHIGEO (JP)
FUKUSHIMA TAKEYUKI (JP)
GOTO TAKAYUKI (JP)
SATO YUKARI (JP)
SHIMIZU HIROYUKI (JP)
NAMIKAWA YUICHI (JP)
FUKUSHIMA TAKEYUKI (JP)
GOTO TAKAYUKI (JP)
SATO YUKARI (JP)
SHIMIZU HIROYUKI (JP)
NAMIKAWA YUICHI (JP)
Application Number:
PCT/JP2023/024763
Publication Date:
March 21, 2024
Filing Date:
July 04, 2023
Export Citation:
Assignee:
TAIYO YUDEN KK (JP)
International Classes:
H04R17/00; B06B1/04; B06B1/06; H04R17/10
Foreign References:
| JPS6373181U | 1988-05-16 | |||
| JP2009077130A | 2009-04-09 | |||
| CN202778922U | 2013-03-13 | |||
| JP2005136863A | 2005-05-26 |
Attorney, Agent or Firm:
KATAYAMA, Shuhei (JP)
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