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:
Jun. 03, 1986
Filed:
Jul. 25, 1984
Kinya Matsutani, Yokohama, JP;
Katsutoki Sasaki, Yokohama, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A single crystal pulling system including a single crystal pulling apparatus, an electromagnet, and an electromagnet moving mechanism, wherein the single crystal pulling apparatus pulls a seed crystal from a single crystal material melt contained in a crucible at a specified constant speed. The electromagnet is disposed at the outer periphery of the crucible so as to apply a predetermined required strength of magnetic field to the crystal-melt interface of the melt. The magnet moving mechanism moves the electromagnet in a vertical direction with respect to the crucible as the level of the crystal-melt interface is lowered during seed growth so that a predetermined required strength of magnetic field is always applied to the crystal-melt interface.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile