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. 19, 2019
Filed:
Sep. 17, 2014
Daishinku Corporation, Kakogawa-shi, Hyogo, JP;
Tomo Fujii, Kakogawa, JP;
Kozo Shibutani, Kakogawa, JP;
Satoru Ishino, Kakogawa, JP;
Yoshinari Morimoto, Kakogawa, JP;
Tadataka Koga, Kakogawa, JP;
Kazuki Otani, Kakogawa, JP;
Daishinku Corporation, Hyogo, JP;
Abstract
This piezoelectric wafer has: a piezoelectric vibration piece; a frame portion that supports the piezoelectric vibration piece; and a coupling portion that couples the piezoelectric vibration piece to the frame portion. The piezoelectric vibration piece is broken off at the coupling portion and separated from the piezoelectric wafer. On front and back surfaces of the coupling portion, grooved slits extending along a width direction of the coupling portion are formed except for parts of the coupling portion in the width direction. An electrode on at least one of front and back surfaces of the piezoelectric vibration piece is extracted to a frame-portion side of the piezoelectric wafer by way of the part of the coupling portion in the width direction.