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:
Mar. 17, 2015
Filed:
Aug. 09, 2010
Takeshi Tomoe, Tokyo, JP;
Takanori Wagatsuma, Tokyo, JP;
Terumi Takemoto, Tokyo, JP;
The Yoshida Dental Mfg. Co., Ltd., Sumida-ku, Tokyo, JP;
Abstract
An X-ray photographing device includes an X-ray irradiating unit () for irradiating an object () with an X-ray beam () having a slit shape from a source (), and an imaging member () provided with a surface () to receive the X-ray beam. A pivot drive unit causes the irradiating unit () and the imaging member () to pivot about a pivoting center line (La) around the object (), and a sub-drive unit () causes the imaging member () to have a local motion in a circumferential direction with a shift width (Mw). A width (W) of the surface () in the circumferential direction is smaller than the shift width (Mw) and the local motion is a local rotation motion made on the rotation center line (Lc). This configuration reduces the cost of the device, reduces vibrations of the imaging member (), and enhances operating efficiency.