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. 01, 2012
Filed:
Apr. 01, 2008
Ying-shu Quan, Kyoto, JP;
Fumio Kamiyama, Kyoto, JP;
Yoshikazu Tobinaga, Otsu, JP;
Tomoya Kitagawa, Otsu, JP;
Kentaro Ohshima, Wakayama, JP;
Akira Yamamoto, Kyoto, JP;
Ying-shu Quan, Kyoto, JP;
Fumio Kamiyama, Kyoto, JP;
Yoshikazu Tobinaga, Otsu, JP;
Tomoya Kitagawa, Otsu, JP;
Kentaro Ohshima, Wakayama, JP;
Akira Yamamoto, Kyoto, JP;
Cosmed Pharmaceutical Co., Ltd., Kyoto, JP;
Abstract
Microneedle device is provided, which include microneedles that can be easily inserted into skin and dissolve or swell in skin. The microneedle devices comprise a substrate and cone-shaped or pyramid-shaped microneedles for skin insertion set on the substrate. The microneedles for skin insertion contain over 50 weight percent of one or multiple biomaterials chosen from chitosan, collagen, gelatin, hyaluronic acid, and they are fabricated from the materials that can dissolve or swell in the body.