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:
Jun. 26, 2012
Filed:
Oct. 31, 2003
Applicants:
Kazuhiko Kato, Tokyo, JP;
Yoshinori Murakami, Tokyo, JP;
Yoshiyuki Muroi, Tokyo, JP;
Manabu Tonomura, Tokyo, JP;
Mitsuyoshi Kashiwagi, Tokyo, JP;
Inventors:
Kazuhiko Kato, Tokyo, JP;
Yoshinori Murakami, Tokyo, JP;
Yoshiyuki Muroi, Tokyo, JP;
Manabu Tonomura, Tokyo, JP;
Mitsuyoshi Kashiwagi, Tokyo, JP;
Assignee:
Kao Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 8/00 (2006.01); A61K 8/21 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention provides an oral preparation or a chewing gum comprising an organic acid and/or inorganic acid and a fluoride ion supplying compound, wherein a light scattering layer is formed inside enamel of the teeth when the oral preparation or the chewing gum is applied to teeth. An internal tooth colored layer in the enamel is masked by the light scattering layer, and a white appearance is imparted to the teeth.