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:
Apr. 24, 1979
Filed:
Jan. 24, 1977
Toshio Nishikawa, Nagaokakyo, JP;
Youhei Ishikawa, Kyoto, JP;
Sadahiro Tamura, Kyoto, JP;
Sadao Yamashita, Kyoto, JP;
Abstract
The present invention is an electrical filter which includes coaxial resonators, for example, both-end open type 1/2 wave length TEM (transverse electro-magnetic mode) coaxial resonators, each having dielectric material, for example of titanium oxide group, filling the space between an inner conductor and an outer conductor of the resonator for reduction of size and weight of the resonator with optimum quality factor Q and temperature characteristics, while the predetermined number of these coaxial resonators are accommodated in one or more than two bores longitudinally formed in parallel relation to each other in a filter casing of conductive material for coupling the resonators to each other through capacitors.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile