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. 19, 2001
Filed:
Dec. 14, 1999
Applicant:
Inventors:
Isao Ishigaki, Fukushima-ken, JP;
Shuichi Shibuya, Fukushima-ken, JP;
Assignee:
Alps Electric Co., LTD, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01P 7/00 ; H01P 7/10 ;
U.S. Cl.
CPC ...
H01P 7/00 ; H01P 7/10 ;
Abstract
A resonator includes an insulating plate having a circular through hole, an arc-shaped conductor line formed in the periphery of the through hole and on the top face of the insulating plate or in the inner wall of the through hole, a first electrode connected to one end of the conductor line and a second electrode connected to the other end of the conductor line wherein both first electrode and the second electrode are provided on a side face of the insulating plate.