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:
Jan. 02, 1990
Filed:
Jul. 21, 1988
Akira Tanaka, Katsuta, JP;
Satoshi Shimada, Hitachi, JP;
Kazuji Yamada, Hitachi, JP;
Yusaku Nakagawa, Hitachi, JP;
Motohisa Nishihara, Katsuta, JP;
Tadahiko Miyoshi, Hitachi, JP;
Noboru Baba, Hitachiota, JP;
Hiromi Kagohara, Hitachi, JP;
Ichiro Inamura, Mobara, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A method for generating X-rays in an X-ray tube, comprises the steps of: rotating an X-ray target of a rotating anode, the X-ray target having a metal coated layer thereon; applying electron beams emitted from a cathode onto the metal coated layer of the X-ray target; and offsetting thermal deformation of the X-ray target due to the application of the electron beams by deformation of the X-ray target due to centrifugal force, thereby maintaining a position of the X-ray target in a direction of the application of the electron beams, at a room temperature of the X-ray target, thus generating the X-rays.