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:
Mar. 11, 2003
Filed:
Feb. 10, 2000
Applicant:
Inventors:
Shigeyuki Mikami, Nagaokakyo, JP;
Toshiro Hiratsuka, Kusatsu, JP;
Tomiya Sonoda, Muko, JP;
Kiyoshi Kanagawa, Nagaokakyo, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01P 7/10 ; H01P 1/203 ; H01P 1/208 ;
U.S. Cl.
CPC ...
H01P 7/10 ; H01P 1/203 ; H01P 1/208 ;
Abstract
A dielectric filter comprises a dielectric substrate having two opposing main surfaces on which electrodes are formed. Electrodeless portions are formed in the electrodes on the two main surfaces. Conductors are arranged a fixed distance away from the dielectric substrate. The electrodes have projections and/or recesses formed in the boundary region between the electrodeless portion and the electrode.