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, 2004
Filed:
Jan. 02, 2002
Toshiharu Yamashita, Hachioji, JP;
Yoshitaka Yoneda, Hamura, JP;
Hoya Corporation, Tokyo, JP;
Abstract
A polarizing glass comprising geometrically anisotropic particles dispersed in an oriented manner in at least the surface of a glass base body. The glass base body is denoted by the weight percentages of 50-65 percent SiO , 15-22 percent B O , 0-4 percent Al O , 2-8 percent ZrO , 6 percent <Al O +ZrO <12 percent, 6-16 percent R O (where R denotes at least one from among Li, Na, and K), 0-3 percent Li O, 0-9 percent Na O, 4-16 percent K O, Li O+Na O<K O, 0-7 percent BaO and/or SrO, and 0-3 percent TiO . The glass base body comprises per 100 weight percent of essentially the above composition at least 0.15-1.0 percent Ag and at least the chemical equivalent to Ag of Cl and/or Br; and the geometrically anisotropic silver particles are metallic Ag particles. The polarizing glass is employed in optical products such as optical isolators.