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:
Apr. 16, 1991
Filed:
Sep. 14, 1989
Applicant:
Inventors:
Hiroyuki Ibe, Fukui, JP;
Takashi Mori, Fukui, JP;
Assignee:
Shin-Etsu Handotai Company Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B24B / ;
U.S. Cl.
CPC ...
5116577 ; 5128 / ; 5116571 ; 5110 / ;
Abstract
An apparatus for smoothing the surface of a monocrystal ingot comprising a center axis finding device, an external cylindrical grinding unit, an ingot setting unit, and an automatic diameter control unit which controls the grinding amount of the external cylindrical grinding unit responsive to the result of the measurement of the local diameter of the monocrystal ingot.
Quick Actions:
Ibe, Hiroyuki. (1991). Apparatus for shaping ingots into right circular cylindrical form (U.S. Patent No. 5007204). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5007204
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