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:
Nov. 10, 1992
Filed:
Jul. 22, 1991
Applicant:
Inventors:
Shih-Chin Chang, Hsinchu, TW;
Tsing-Shien Sheu, Taoyuan, TW;
Assignee:
National Science Council, Taipei, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22C / ; B22C / ; B22C / ;
U.S. Cl.
CPC ...
164519 ; 1641222 ; 164361 ;
Abstract
A technique of preparing graphite molds for growing single crystals of active metals and alloys. The inner surfaces of the graphite molds in contact with the growing up single crystals are of passive graphite. Various types of single crystal selectors are available in the graphite molds.