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:
Nov. 09, 2004
Filed:
Aug. 31, 2001
Masayuki Hirano, Hamamatsu, JP;
Hiroki Kawakami, Hamamatsu, JP;
Hamamatsu Photonics K.K., Shizuoka, JP;
Abstract
The voltage applied to a first grid electrode of an X-ray tube by a grid voltage control section is controlled with reference to a predetermined negative voltage from a negative voltage generating section when an object to be inspected does not exist in an imaging area (irradiation area of an X-ray from an X-ray source ) so that the pulse outputted from a pulse generator is in its OFF state, and is controlled with reference to a reference positive voltage from a reference voltage generating section when the object to be inspected exists in the imaging area in the X-ray image intensifier (irradiation area of the X-ray from the X-ray source ) so that the pulse outputted from the pulse generator is in its ON state, whereby both of the cutoff voltage and grid operating voltage are applied in a stable state.