The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 01, 2022
Filed:
Dec. 19, 2017
Applicant:
Daishinku Corporation, Kakogawa, JP;
Inventors:
Tomo Fujii, Kakogawa, JP;
Hiroaki Yamashita, Kakogawa, JP;
Assignee:
Daishinku Corporation, Hyogo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 9/21 (2006.01); H03H 9/10 (2006.01); H03H 9/13 (2006.01);
U.S. Cl.
CPC ...
H03H 9/21 (2013.01); H03H 9/10 (2013.01); H03H 9/13 (2013.01);
Abstract
A tuning fork-type vibration piece is provided, in which a cushioning portion is formed on the base of a package to make contact with abutting portions of arm portions which are any parts but their edges, and the abutting portions of the arm portions allowed to contact the cushioning portion are electrodeless regions including no electrode, which prevents the risk of frequency fluctuations that may occur in case an electrode is chipped off by possible contact with the cushioning portion.