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.:

US 7922994 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 12, 2011

Filed:

Dec. 18, 2008
Applicants:

Hiroaki Yotou, Kariya, JP;

Miho Itoh, Aichi-ken, JP;

Inventors:

Hiroaki Yotou, Kariya, JP;

Miho Itoh, Aichi-ken, JP;

Assignee:

Denso Corporation, Kariya, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B 13/00 (2006.01); C01B 13/36 (2006.01); C01F 7/00 (2006.01); C01F 7/34 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method for preparing metal oxide particles having a primary particle size on the order of nanometers is provided. The method comprises subjecting a metal ion present in an aqueous solution and an amino alcohol to an initial stage of reaction with each other at normal temperatures under normal pressures for a given time, and adding at least once either of a metal ion or an amino alcohol or both thereof to the resulting reaction system for carrying out a subsequent stage of reaction for a given time wherein total amounts of the metal ion and the amino alcohol are such that the amino alcohol is used in the range of not less than a molar equivalent to the metal ion.


Find Patent Forward Citations

Yotou, Hiroaki. (2011). Method for preparing metal oxide particles with a controlled size (U.S. Patent No. 7922994). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7922994

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