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:
Dec. 26, 1978
Filed:
Mar. 17, 1977
Kaichiro Nakai, Yokohama, JP;
Hisao Saito, Yokohama, JP;
Tokyo Shibaura Electric Co., Ltd., Kawasaki, JP;
Abstract
A magnetron includes a high frequency generating source having an anode and a cathode, two power supply conductors for supplying electric power to the cathode of the high frequency generating source, filter circuits inserted in the power supply conductors for damping and suppressing the high frequency components leaking through the power supply conductors and a shield box covering the two power supply conductors and two filter circuits. Each of the filter circuits includes a capacitor and a choke which is comprised of an coreless type inductor made of coreless coil and a core type inductor made of ferrite-cored coil. The coreless type inductors of two filter circuits connected to the respective different power supply conductors are different each other in inductance.