Invention Grant
- Patent Title: Tuning fork-type vibrator and manufacturing method for the same
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Application No.: US16473441Application Date: 2017-12-19
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Publication No.: US11621696B2Publication Date: 2023-04-04
- Inventor: Tomo Fujii , Hiroaki Yamashita
- Applicant: DAISHINKU CORPORATION
- Applicant Address: JP Kakogawa
- Assignee: DAISHINKU CORPORATION
- Current Assignee: DAISHINKU CORPORATION
- Current Assignee Address: JP Kakogawa
- Agency: Norris McLaughlin, P.A.
- Priority: JPJP2017-015345 20170131
- International Application: PCT/JP2017/045511 WO 20171219
- International Announcement: WO2018/142790 WO 20180809
- Main IPC: H03H9/21
- IPC: H03H9/21 ; H03H3/04
Abstract:
A tuning fork-type vibration piece is provided, in which a cushioning portion is formed on the base of a package and allowed to contact parts for contact of arm portions which are any parts but their edges, and the parts for contact of the arm portions that contact the cushioning portion are electrodeless regions, which prevents the risk of frequency fluctuations caused by any electrode being chipped off by contact with the cushioning portion.
Public/Granted literature
- US20200153408A1 TUNING FORK-TYPE VIBRATOR AND MANUFACTURING METHOD FOR THE SAME Public/Granted day:2020-05-14
Information query
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