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:
Aug. 08, 2000
Filed:
Nov. 10, 1997
Applicant:
Inventors:
Katsuaki Okabe, Honjo, JP;
Tsuyoshi Nishimura, Honjo, JP;
Shinji Sato, Omonogawa-machi, JP;
Kohichiro Eshima, Honjo, JP;
Kouki Toishi, Honjo, JP;
Choju Nagata, Honjo, JP;
Assignee:
Dowa Mining Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C01G / ;
U.S. Cl.
CPC ...
428697 ; 428699 ; 428701 ; 428702 ; 252518 ; 2525201 ;
Abstract
The starting salts for ITO production, precipitant and the conditions for reaction, calcination, etc. are specified such as to synthesize a starting oxide adapted to be free from volatile components such as halides and lower oxides; the starting oxide is dispersed to particles having a specified flowability; the powder is pressed into a compact, which is sintered in either air atmosphere or an oxygen-rich atmosphere to produce a large and high-density sinter for use as an ITO sputtering target.