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:
Aug. 08, 1989
Filed:
Nov. 09, 1987
Makoto Ohgoda, Kanagawa, JP;
Nobuyoshi Nakajima, Kanagawa, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
As an X-ray detecting means in an energy subtraction processing method, there is used a composite member comprising a plurality of stimulable phosphor sheets exhibiting different levels of characteristics of absorbing the low energy component of a radiation and overlaid one upon another, or a composite member comprising a plurality of stimulable phosphor sheets and at least one filter made of a material absorbing the low energy component of a radiation which are overlaid one upon another, or a stimulable phosphor sheet comprising a substrate made of a material absorbing the low energy component of a radiation and stimulable phosphor layers provided thereon. The composite member or the stimulable phosphor sheet is exposed to a radiation passing through an object including a specific structure to record therein at least two radiation images between which the image information at the portion of the specific structure is different. On the basis of the radiation images read out from the composite member or the stimulable phosphor sheet, a subtraction image is obtained.