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:
Nov. 02, 1999
Filed:
Dec. 02, 1997
Masahisa Nakaguchi, Katano, JP;
Takaaki Uchiyama, Higashiosaka, JP;
Sanyo Electric Co., Ltd., Moriguchi, JP;
Abstract
A polar band-pass dielectric filter including three coaxial dielectric resonators each including a main body in the form of a dielectric member, the main body being formed with a through bore extending through opposite end faces thereof, the main body having an outer conductor layer provided over an outer peripheral surface thereof and an inner conductor layer over an inner surface thereof defining the through bore. The resonators are joined to one another with one side of an outer periphery surface of each resonator serving as a joint surface. Each of the resonators has an electrode insulated from the outer conductor layer and provided at a portion of the outer peripheral surface thereof other than the joint surface. The electrodes of the resonators are connected together by a substantially straight conductor member.