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:
Jun. 14, 1988
Filed:
Dec. 10, 1986
Daisuke Takahata, Kawajima, US;
Nitto Incorporated, Saitama, JP;
Abstract
In this piezoelectric oscillation assembly there are included several piezoelectric oscillation devices, each including a first oscillation plate, a piezoelectric oscillation element attached to the first oscillation plate, and a second oscillation plate layered against the first oscillation plate so as to define an acoustically enclosed space between them. At least one of the oscillation plates is common to all of the several piezoelectric oscillation devices. It may be the first oscillation plate which is common to these several piezoelectric oscillation devices, or the second oscillation plate, or both. And the acoustically enclosed spaces of these several piezoelectric oscillation devices may be mutually isolated, or alternatively a one common acoustically enclosed space may be defined between the first oscillation plate and the second oscillation plate for all of these several piezoelectric oscillation devices.