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:
Jul. 04, 2006
Filed:
Sep. 26, 2001
Applicants:
Yasuhiro Unehara, Kanagawa, JP;
Masashi Nishida, Tokyo, JP;
Teruo Miyakawa, Tokyo, JP;
Inventors:
Assignee:
Mitsubishi Rayon Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C01B 33/12 (2006.01); C01B 33/18 (2006.01); C01B 33/193 (2006.01);
U.S. Cl.
CPC ...
Abstract
Non-porous spherical silica having a mean particle diameter of 0.1–20 μm and satisfying the following conditions: