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.

Date of Patent:
Jul. 14, 1998

Filed:

Aug. 03, 1995
Applicant:
Inventors:

Keishi Sakamoto, Katsuta, JP;

Masaki Tsuneoka, Ibaraki-ken, JP;

Atsushi Kasugai, Ibaraki-ken, JP;

Tsuyoshi Kariya, Otawara, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ;
U.S. Cl.
CPC ...
315-5 ; 315-538 ;
Abstract

In the gyrotron apparatus of the present invention, the microwave absorbing unit is provided around the insulation cylinder located between the microwave reflecting transmitter and the collector so as to electrically insulate them from each other, and constituting a part of the vacuum chamber. With this structure, the leakage of an unnecessary microwave to the outside through the insulation cylinder, which may occur when the apparatus is operated with a reduced potential of the collector with regard to the transmitter, can be more surely suppressed.


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