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. 02, 2017
Filed:
Oct. 24, 2011
Koichi Masaoka, Osaka, JP;
Keizo Ikari, Osaka, JP;
Takashi Oda, Osaka, JP;
Katsunori Kobayashi, Kagawa, JP;
Hidetoshi Hamamoto, Kagawa, JP;
Masaki Ishibashi, Kagawa, JP;
Kiyotsuna Toyohara, Tokyo, JP;
Koichi Masaoka, Osaka, JP;
Keizo Ikari, Osaka, JP;
Takashi Oda, Osaka, JP;
Katsunori Kobayashi, Kagawa, JP;
Hidetoshi Hamamoto, Kagawa, JP;
Masaki Ishibashi, Kagawa, JP;
Kiyotsuna Toyohara, Tokyo, JP;
MEDRX CO., LTD., Kagawa, JP;
Abstract
A microneedle and a microneedle array, which have both aspects of safety and easiness to use and can administer a predetermined dose of a medical agent without causing a pain by smoothly running into the skin surface layer of a patient, includes a frustum and a forward end portion thereon, the forward end portion having a forward end apex angle in the range of 15 to 60° and a forward end diameter in the range of 1 to 20 μm and satisfying the expression H/D≧5, where H is a total height of the microneedle, and D is a diameter of a bottom surface of the frustum).