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:
May. 03, 2016
Filed:
Dec. 11, 2014
Asahi Glass Company, Limited, Chiyoda-ku, JP;
ASAHI GLASS COMPANY, LIMITED, Chiyoda-ku, JP;
Abstract
A first polishing agent contains: cerium oxide particles; and water, wherein, in IR spectrum of the cerium oxide particle, a value A found by a formula below from a ratio (I/I') between a value I of an absorbance of 3566 cmand a value I′ of an absorbance of 3695 cm, and a crystallite diameter XS, is 0.08 or less.=(′)/ A second polishing agent contains: cerium oxide particles; and water, wherein, in the cerium oxide particle, a deviation B of a lattice constant found by a formula below from a theoretical lattice constant (a′) and a lattice constant (a) measured by powder X-ray diffraction, is −0.16% or more.(%)=(1−′)×100