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:
Jan. 06, 1987
Filed:
Dec. 10, 1984
Sumitomo Electric Industries, Ltd., Osaka, JP;
Abstract
Single crystal during growth is irradiated by an slitted X-ray beam and the diffracted X-ray beam from the crystal is monitored by an image amplifier with a two dimensional manner so that the diffracted X-ray can be monitored by the image amplifier even if there occurs change of the diameter of the crystal. A half portion of the single crystal during growth is irradiated by a slitted X-ray beam and the other half portion of the crystal is irradiated by the X-ray beam over the entire height of the crystal so that the Laue spots of the crystal growth is displayed on one half portion of the display of the image amplifier and a shape of the crystal being pulled up is monitored in another half portion of the display of the image amplifier.