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Patent Searching and Data


Title:
RESONATOR AND RESONANCE DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/207829
Kind Code:
A1
Abstract:
A resonance device (1) is provided with a resonator (10), an upper lid (30), and a lower lid (20). The resonator (10) has a vibrating part (120) including a base part (130) and a plurality of vibrating arms (135), a holding part (140), and holding arms (111, 112). The lower lid (20) has a protrusion (50) protruding between two adjacent vibrating arms (135B, 135C). The protrusion (50) has an insulating film (235). The vibrating arms (135) each have a weight part (G). The weight part (G) has a conductive film (236) formed on the insulating film (235). In a direction in which the plurality of vibrating arms (135) extend, a second distance (L2) between the weight part (G) and the protrusion (50) is greater than a first distance (L1) between the weight part (G) of one of the two adjacent vibrating arms (135B, 135C) and the holding part (140).

Inventors:
KAWAI, Ryota (10-1, Higashikotari 1-chome, Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
TAKEYAMA Keisuke (10-1, Higashikotari 1-chome, Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
GOTO, Yuichi (10-1, Higashikotari 1-chome, Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
Application Number:
JP2018/043411
Publication Date:
October 31, 2019
Filing Date:
November 26, 2018
Export Citation:
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Assignee:
MURATA MANUFACTURING CO., LTD. (10-1, Higashikotari 1-chome Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
International Classes:
H03H9/24
Domestic Patent References:
WO2017208568A12017-12-07
WO2016052260A12016-04-07
Foreign References:
JP2011087274A2011-04-28
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (TMI ASSOCIATES, 23rd Floor Roppongi Hills Mori Tower, 6-10-1, Roppongi, Minato-k, Tokyo 23, 〒1066123, JP)
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