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. 01, 1981
Filed:
Oct. 02, 1979
Toshio Yamamura, Yokohama, JP;
Takeshi Muraki, Yokohama, JP;
Toshiba Corporation, Kawasaki, JP;
Abstract
A stereoscopic X-ray device used for stereoscopic radiography generates X-rays from a pair of X-ray focal spots. The X-ray device is provided with an evacuated envelope, an X-ray target within the evacuated envelope, and a cathode structure having at least two pairs of filaments. The first pair of filaments form relatively large size X-ray focal spots on the target. The second pair of the filaments form relatively small size X-ray focal spots on the target and are situated between the first pair of filaments on the cathode structure. As a result of these two pairs of focal spots on the X-ray target, a relatively small X-ray device can be used to provide magnification of stereoscopic images of high stereo quality.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile