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:
Dec. 11, 2001
Filed:
Aug. 14, 1998
Applicant:
Inventors:
Ryuji Monden, Nagano, JP;
Kasumi Nakamura, Chiba, JP;
Chozo Inoue, Chiba, JP;
Masahiro Ohmori, Chiba, JP;
Jun Tanaka, Toyama, JP;
Tamotsu Yamashita, Chiba, JP;
Mayumi Miyazawa, Chiba, JP;
Assignee:
Showa Denko K.K., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01G 2/3047 ; C01G 2/800 ; C01G 1/702 ; C01G 2/502 ; C01F 3/00 ;
U.S. Cl.
CPC ...
C01G 2/3047 ; C01G 2/800 ; C01G 1/702 ; C01G 2/502 ; C01F 3/00 ;
Abstract
A method for producing fine particles of metal oxide characterized in that metal halide is hydrolyzed in the presence of organic solvent. According to this invention, under hydrolysis of titanium tetrachrolide, anatase type titanium oxide can be obtained by selecting hydrophilic organic solvent, and rutile type titanium oxide can be obtained by selecting hydrophobic organic solvent.