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:
May. 22, 2001
Filed:
Apr. 20, 1998
Nobuaki Ishii, Kawasaki, JP;
Koichi Wada, Kawasaki, JP;
Kazuo Sekiguchi, Kawasaki, JP;
Michihiro Takama, Tokyo, JP;
Shinobu Ito, Tokyo, JP;
Kotaro Yano, Chiba, JP;
Yasuo Saito, Chichibu, JP;
Keiji Kawasaki, Chiba, JP;
Showa Denko K.K., Tokyo, JP;
Abstract
Cosmetics comprising silica-coated metal oxide powder having a thickness of the silica coating of 0.1 to 100 nm, and a photocatalytic activity as measured by tetralin auto-oxidation method of 6 mmH,O/min or less. Silica-coated metal oxide powder coated with a silica coating having an absorption peak intensity ratio I (I=I,/I,, wherein I,is an absorption peak intensity at 1,150 to 1,250 cm,and I,is an absorption peak intensity at 1,000 to 1,100 cm,) between the infrared absorption spectra in the region of 1,150 to 1,250 cm,and the region of 1,000 to 1,100 cm,of 0.2 or more, and having a refractive index of 1.435 or more.