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:
Jan. 12, 1999
Filed:
Aug. 26, 1997
Seigo Hino, Nagoya, JP;
NGK Spark Plug Co., Ltd., Nagoya, JP;
Abstract
In a dielectric filter comprising a dielectric block provided with a plurality of through holes bored from the top all the way to the bottom thereof and arranged in parallel with each other, the peripheral walls of the through holes being coated with an inner conductor to produce so many dielectric coaxial resonators, a non-short-circuiting section is formed on the top of the dielectric block, by cutting out at least one of the edges of the top running in parallel with the direction of linking the resonators. With this arrangement, an interstage coupling section can be formed accurately and easily regardless in the dielectric filter if a number of dielectric filters being manufactured on a mass production basis show positional displacements and/or dimensional deviations from the specified values in the manufacturing process.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile