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:
Jul. 18, 1995
Filed:
Jun. 09, 1992
Applicant:
Inventors:
Hiroaki Kaida, Kyoto, JP;
Hiroshi Nakatani, Kyoto, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03H / ;
U.S. Cl.
CPC ...
333187 ; 333200 ; 310370 ; 331156 ;
Abstract
A tuning fork type piezoelectric resonator constructed by forming tuning fork arm portions on both sides of a first slit provided for a piezoelectric substrate, forming resonance electrodes on both major surfaces of the piezoelectric substrate in a region around the first slit, and forming steps in outer edges of the tuning fork arm portions.