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:
May. 16, 2006
Filed:
May. 30, 2002
Tomoyuki Okada, Hamamatsu, JP;
Yoshitoshi Ishihara, Hamamatsu, JP;
Tomoyuki Okada, Hamamatsu, JP;
Yoshitoshi Ishihara, Hamamatsu, JP;
Hamamatsu Photonics K.K., Shizuoka, JP;
Abstract
An object of the invention is to provide a high-resolution transmission type X-ray tube. With an X-ray imaging device according to the present invention, electron lens forming partA includes a central axis part, which is formed at the interior of a yokeand an outer peripheral partwhich defines the outer periphery of yokeA part of a front end partof central axis partbecomes a magnetic polethat is positioned at the side of an electron gun. A first openingis defined by magnetic poleA part of a front end partof outer peripheral partbecomes a magnetic polethat is positioned at the side of a targetA second openingis defined by magnetic poleThe value of diameter dof second openingis greater than the value of diameter dof first opening
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile