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:
Nov. 18, 2008
Filed:
Dec. 25, 2003
Applicants:
Masakazu Ohara, Yamaguchi, JP;
Minoru Kimura, Yamaguchi, JP;
Hiroo Aoki, Yamaguchi, JP;
Inventors:
Assignee:
Tokuyama Corporation, Yamaguchi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 5/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
This invention provides flame-generated fine silica particles having an average particle size of 0.05 to 1 μm, wherein a fractal structure parameter αat length scales ranging from 50 nm to 150 nm and a fractal structure parameter αat length scales ranging from 150 nm to 353 nm satisfy the following formulas (1) and (2):−0.0068+2.548≦α≦−0.0068+3.748  (1)−0.0011+1.158≦α≦−0.0011+2.058  (2)