Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Akihiko Shirakawa0
Hitoshi Yokouchi0
Date of Patent
October 7, 2008
0Patent Application Number
101893710
Date Filed
July 3, 2002
0Patent Primary Examiner
Patent abstract
The present invention provides a barium titanate having a small particle size, containing small amounts of unwanted impurities, and exhibiting excellent electric characteristics, which can be employed for forming a dielectric ceramic thin film required for a small-sized capacitor which enables production of a small-sized electronic apparatus; and a process for producing the barium titanate. When a titanium oxide sol is reacted with a barium compound in an alkaline solution containing a basic compound, the basic compound is removed in the form of gas after completion of reaction, and the resultant reaction mixture is fired, a barium titanate having a large BET specific surface area and a high tetragonality content is produced.
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