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:
Mar. 26, 1997
Hiroshi Ochiai, Kawachi-gun, JP;
Mitsuichi Hiraishi, Utsunomiya, JP;
Masanori Yoshihara, Imaichi, JP;
Yasunobu Nakano, Utsunomiya, JP;
Matsushita Electronics Corporation, Osaka, JP;
Abstract
A high voltage noise filter for use in magnetron devices comprises a coil of a conductive wire coated with an insulating layer and another coil of the conductive wire with a conductive layer formed on the insulating layer, the two coils connected to each other in series A joint portion of the two coils has a triple-layered structure wherein a high withstand voltage layer either of a semiconductive or insulative member is formed in the vicinity of an end portion of the conductive layer, as interposed between the outer peripheral surface of the insulating layer and the conductive layer.