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. 06, 2012
Filed:
Oct. 16, 2007
Minoru Tomozawa, Troy, NY (US);
Bungo Hatta, Shigaken, JP;
Minoru Tomozawa, Troy, NY (US);
Bungo Hatta, Shigaken, JP;
Rensselaer Polytechnic Institute, Troy, NY (US);
Sekisui Chemical Co., Ltd., Shiga, JP;
Abstract
The invention relates to a process for making a SiO—REO—AlOglass comprising preparing a glass according to a conventional process wherein the conventional process comprises a step of heat treating a mixture of SiO, REO, and AlOat a temperature greater than the spinodal temperature for 0.1 to 10 hours wherein REOis a rare earth oxide and RE is a rare earth element chosen from Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and combinations thereof. The invention also relates to glasses prepared by the process and glass lasers, optical amplifiers and laminated glass that comprise the glass prepared by the process.