X-ray or gamma ray systems or devices – Electronic circuit – For electrode movement
Reexamination Certificate
2007-05-29
2007-05-29
Glick, Edward J. (Department: 2882)
X-ray or gamma ray systems or devices
Electronic circuit
For electrode movement
C378S094000
Reexamination Certificate
active
10500700
ABSTRACT:
An X-ray tube apparatus (2) having an anode rotating mechanism for preventing damage of the anode (23) of the X-ray tube apparatus thereby to shorten the X-ray exposure waiting time. When the measured number of revolutions of a rotary anode is determined to be predetermined number from only the impedance or current information on the basis of both voltage information and current information on a stator coil (22) of motor constituent elements for rotating the rotary anode, a DC high voltage outputted from an X-ray high-voltage unit (1) is applied between the anode (23) and a cathode (24) of the X-ray tube apparatus, thus exposing a subject (130) to X-rays and imaging the subject. An X-ray generating device and a radiograph are also disclosed.
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Domoto Takuya
Takano Hiroshi
Cooper & Dunham LLP
Glick Edward J.
Hitachi Medical Corporation
Kao Chih-Cheng Glen
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