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:
Aug. 17, 1999
Filed:
Mar. 27, 1998
Yoshinobu Hiraishi, Kanagawa, JP;
Mitsunori Kawabata, Kanagawa, JP;
Shoei Kurosaka, Kanagawa, JP;
Hiroshi Inagaki, Kanagawa, JP;
Komatsu Electronic Metals Co.,Ltd., Kanagawa, JP;
Abstract
This invention provides a apparatus for pulling up crystal bodies, which is capable of firmly clamping and safely pulling up large-diameter crystal bodies regardless of the location of the necked portions formed on the top of the crystal bodies. A large-diameter portion 52 and a necked portion 51 are formed on the top of the crystal body 5. The swaying members 12 of the necked-portion clamp 1 are capable of swaying upward and downward without restraint. The stopper 14 restrains the swaying members 12 to sway below the horizontal plane on which the swaying members 12a are located. The large-diameter portion 52 can pass through the clamp body 11 by lowering the necked-portion clamp 1 to sway the swaying members 12 upward. The swaying members 12 close to clamp the necked portion 51 when the necked-portion clamp 1 reaches a location near the necked portion 51. The distance between the necked-portion clamp 1 and the seed-crystal 3 is adjustable.