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. 01, 2011
Filed:
Dec. 03, 2009
Applicants:
Toyoharu Hayashi, Yokohama, JP;
Norio Nakayama, Ichihara, JP;
Tomonori Iijima, Ichihara, JP;
Inventors:
Assignee:
Mitsui Chemicals, Inc., Minato-Ku, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01G 23/047 (2006.01); C01G 23/053 (2006.01); B01J 21/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
It is provided ultrafine particles of a rutile titanium oxide obtained by maintaining the pH of an aqueous solution of a titanium compound having a Ti concentration of from 0.07 to 5 mol/L in the range of −1 to 3 in the presence of a chelating agent. Such ultrafine particles of a rutile titanium oxide are useful for photocatalysts, high refractive index materials, ultraviolet absorbing materials and the like.