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.

Date of Patent:
May. 23, 1995

Filed:

Dec. 07, 1993
Applicant:
Inventors:

Koichi Nakashima, Kitaibaraki, JP;

Toru Saito, Kitaibaraki, JP;

Takamasa Maekawa, Kitaibaraki, JP;

Assignee:

Nikko Kyodo, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C25B / ;
U.S. Cl.
CPC ...
204 96 ;
Abstract

An indium oxide-tin oxide powder for ITO display devices etc. with only slight variance in properties such as average particle diameter and apparent density is prepared stably with good controllability and at low cost: (1) by electrolyzing indium as an anode, calcining or roasting the indium hydroxide obtained and combining the resulting indium oxide powder with a tin oxide powder; (2) by electrolyzing tin as an anode, calcining or roasting the metastannic acid obtained and combining the resulting tin oxide powder with an indium oxide powder; (3) by simultaneously electrolyzing indium and tin as separate anodes and then calcining or roasting the resulting mixed precipitate of indium hydroxide and metastannic acid to produce an indium oxide-tin oxide powder; or (4) by electrolyzing an alloy of indium and tin as an anode and then calcining or roasting the resulting precipitate of indium hydroxide and metastannic acid to produce an indium oxide-tin oxide powder.


Find Patent Forward Citations

Nakashima, Koichi. (1995). Process for preparation of indium oxide-tin oxide powder (U.S. Patent No. 5417816). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5417816

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