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. 05, 2018
Filed:
Jun. 17, 2014
Imagineering, Inc., Kobe-shi, Hyogo, JP;
Yuji Ikeda, Kobe, JP;
Seiji Kanbara, Kobe, JP;
IMAGINEERING, INC., Kobe-shi, JP;
Abstract
To provide an ignition plug having low power loss even though iron is a main component of a center electrode thereof, to which a high frequency power such as a microwave is electrically supplied. A low impedance layercomposed of a material having magnetic permeability lower than iron is provided between an outer peripheral surface of a center electrodeand an inner peripheral surface of an axial holeof an insulator. The low impedance layeris in contact with at least the outer peripheral surface (surface) of the center electrode, thereby reducing power loss of an electromagnetic wave flowing on the surface of the center electrode. More particularly, the low impedance layeris made of silver, copper, gold, aluminum, tungsten, molybdenum, titanium, zirconium, niobium, tantalum, bismuth, palladium, lead, tin, an alloy composed mainly of these metals, or a composite material of these metals.