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:
Dec. 28, 2021
Filed:
Feb. 28, 2019
Applicant:
Shin-etsu Chemical Co., Ltd., Tokyo, JP;
Inventors:
Shinji Aoki, Annaka, JP;
Keita Tanaka, Annaka, JP;
Assignee:
SHIN-ETSU CHEMICAL CO., LTD., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C30B 13/34 (2006.01); C04B 35/505 (2006.01); C04B 35/64 (2006.01); C30B 13/24 (2006.01); C30B 15/00 (2006.01); G02B 5/30 (2006.01); G02B 27/28 (2006.01); G02F 1/00 (2006.01); C04B 35/50 (2006.01); C04B 35/626 (2006.01); C04B 35/645 (2006.01); G02F 1/09 (2006.01); C09K 11/77 (2006.01);
U.S. Cl.
CPC ...
C30B 13/34 (2013.01); C04B 35/50 (2013.01); C04B 35/505 (2013.01); C04B 35/6265 (2013.01); C04B 35/6268 (2013.01); C04B 35/62645 (2013.01); C04B 35/62685 (2013.01); C04B 35/64 (2013.01); C04B 35/6455 (2013.01); C09K 11/7769 (2013.01); C30B 13/24 (2013.01); C30B 15/00 (2013.01); G02B 5/3033 (2013.01); G02B 27/28 (2013.01); G02F 1/0036 (2013.01); G02F 1/09 (2013.01); C04B 2235/3205 (2013.01); C04B 2235/3206 (2013.01); C04B 2235/3208 (2013.01); C04B 2235/3213 (2013.01); C04B 2235/3215 (2013.01); C04B 2235/3224 (2013.01); C04B 2235/3225 (2013.01); C04B 2235/3232 (2013.01); C04B 2235/3244 (2013.01); C04B 2235/3852 (2013.01); C04B 2235/444 (2013.01); C04B 2235/445 (2013.01); C04B 2235/604 (2013.01); C04B 2235/658 (2013.01); C04B 2235/6581 (2013.01); C04B 2235/6583 (2013.01); C04B 2235/661 (2013.01); C04B 2235/662 (2013.01); C04B 2235/663 (2013.01); C04B 2235/664 (2013.01); C04B 2235/762 (2013.01); C04B 2235/9653 (2013.01);
Abstract
A transparent complex oxide sintered body is manufactured by sintering a compact in an inert atmosphere or vacuum, and HIP treating the sintered compact, provided that the compact is molded from a source powder based on a rare earth oxide: (TbY)Owherein 0.4≤x≤0.6, and the compact, when heated in air from room temperature at a heating rate of 15° C./min, exhibits a weight gain of at least y % due to oxidative reaction, y being determined by the formula: y=2x+0.3. The sintered body has a long luminescent lifetime as a result of controlling the valence of Tb ion.