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. 26, 1988
Filed:
Jun. 23, 1986
Applicant:
Inventors:
Shunji Nomura, Yokohama, JP;
Senji Shimamuki, Atsugi, JP;
Susumu Hashimoto, Tokyo, JP;
Tomohisa Yamashita, Yamato, JP;
Assignee:
Kabushiki Kaisha Toshiba, , JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C30B / ;
U.S. Cl.
CPC ...
156603 ; 156D / ; 156D / ;
Abstract
A process for producing a signal crystal of garnet ferrite comprises causing a signal crystal to grow by subjecting raw materials for the garnet ferrite to sintering so as to utilize the anomalous grain growth induced by the sintering. The process requires a shorter period of time for the growth of the single crystal, is free from mixing of impurities, and is capable of producing a single crystal with a high Faraday rotation while reducing production cost for the crystal.