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:
Sep. 03, 2013
Filed:
Jun. 30, 2009
Atsushi Muramatsu, Miyagi, JP;
Kiyoshi Kanie, Miyagi, JP;
Kazuhisa Saito, Tokyo, JP;
Koji Tanoue, Tokyo, JP;
Akira Nagatomi, Tokyo, JP;
Atsushi Muramatsu, Miyagi, JP;
Kiyoshi Kanie, Miyagi, JP;
Kazuhisa Saito, Tokyo, JP;
Koji Tanoue, Tokyo, JP;
Akira Nagatomi, Tokyo, JP;
Tohoku University, Sendai-Shi, JP;
Dowa Electronics Materials Co., Ltd., Tokyo, JP;
Abstract
A production method capable of producing ITO particles without using a solvent with a high boiling point as a solvent used in the producing step by a simple treatment method without through a heating process in an atmosphere which disadvantageously causes sintering among the ITO particles to coarsen the ITO particles. An ITO powder suitable for a coating material for a transparent electroconductive material, being produced by a first step of dissolving salt containing indium and salt containing tin into an organic solvent, then adding to this organic solvent, an organic solvent containing a basic precipitant, to thereby manufacture a mixture of a precursor containing indium and tin, and the organic solvent; and a second step of applying heat treatment to the mixture of the precursor containing indium and tin, and the organic solvent in a pressurizing vessel at 200° C. or more and 300° C. or less, to generate ITO particles.