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. 31, 2013
Filed:
Dec. 17, 2012
Kao Corporation, Tokyo, JP;
Mami Shirota, Wakayama, JP;
Yasuhiro Yoneda, Wakayama, JP;
Kao Corporation, Tokyo, JP;
Abstract
A polishing liquid composition includes composite oxide particles containing cerium and zirconium, a dispersing agent, and an aqueous medium. A powder X-ray diffraction spectrum of the composite oxide particles obtained by CuKα1 ray (λ=0.154050 nm) irradiation includes a peak (first peak) having a peak top in a diffraction angle 2θ (θ is a Bragg angle) range of 28.61 to 29.67°, a peak (second peak) having a peak top in a diffraction angle 2θ range of 33.14 to 34.53°, a peak (third peak) having a peak top in a diffraction angle 2θ range of 47.57 to 49.63°, and a peak (fourth peak) having a peak top in a diffraction angle 2θ range of 56.45 to 58.91°. A half-width of the first peak is 0.8° or less.