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:
May. 02, 1995
Filed:
Nov. 12, 1993
Kazuyuki Noto, Kyoto, JP;
Jiro Miyazaki, Kyoto, JP;
Taketoshi Hino, Kyoto, JP;
Daisaku Kugou, Kyoto, JP;
Murata Manufacturing Co., Ltd., Nagaokakyo, JP;
Abstract
In a chip-type piezoelectric-resonator, which is protected with thermosetting resin, mother sheets are bonded to cover both major surfaces of a mother substrate having a plurality of piezoelectric resonance elements which are provided on a piezoelectric substrate, in order to properly form vibrating spaces. The mother sheets are provided with concave portions for defining cavities for vibration. Then, protective resin is applied to cover the mother substrate which is bonded with the mother sheets, and thereafter the mother substrate is divided so as to obtain a plurality of chip-type piezoelectric-resonators.