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:
Sep. 24, 2019
Filed:
Sep. 27, 2016
Toshiba Medical Systems Corporation, Otawara-shi, JP;
Sanae Harada, Nasushiobara, JP;
Hiroaki Miyazaki, Otawara, JP;
Canon Medical Systems Corporation, Otawara-shi, JP;
Abstract
According to one embodiment, an X-ray computed tomography imaging apparatus includes an X-ray tube, an X-ray detector, and control circuitry. The X-ray tube includes a cathode configured to generate thermoelectrons, an anode configured to generate X-rays upon receiving the thermoelectrons from the cathode, and a regulator configured to apply an electric field or a magnetic field to focus or bias the thermoelectrons from the cathode. The X-ray detector detects the X-rays generated by the anode. The control circuitry controls the regulator to switch at least one of the size and position of the focus of the thermoelectrons from the cathode on the anode between scan and warm-up.