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. 01, 2016
Filed:
Oct. 05, 2011
Shinji Makikawa, Annaka, JP;
Toshiaki Watanabe, Annaka, JP;
Akio Yamanaka, Sapporo, JP;
Hirotaka Naruse, Uji, JP;
Shinji Makikawa, Annaka, JP;
Toshiaki Watanabe, Annaka, JP;
Akio Yamanaka, Sapporo, JP;
Hirotaka Naruse, Uji, JP;
SHIN-ETSU CHEMICAL CO., LTD., Tokyo, JP;
Abstract
It is an object of the present invention to provide a magneto-optical material containing as a main component an oxide that includes a terbium oxide and having a large Verdet constant at a wavelength in the 1.06 μm region (0.9 to 1.1 μm) and high transparency, and to provide a small-sized optical isolator suitably used in a fiber laser for a processing machine. The magneto-optical material of the present invention contains an oxide represented by Formula (I), TbR)O, where x satisfies 0.4≦×≦1.0 and R includes at least one element selected from the group consisting of scandium, yttrium, and lanthanoid elements other than terbium, at a content of at least 99 wt %.