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:
Feb. 19, 2013
Filed:
Mar. 29, 2010
Applicants:
Kazuhiko Shiomitsu, Tokyo, JP;
Hiroshi Sugimura, Tokyo, JP;
Toshiaki Kurosu, Tokyo, JP;
Gaku Suzuki, Tokyo, JP;
Takao Tomono, Tokyo, JP;
Inventors:
Kazuhiko Shiomitsu, Tokyo, JP;
Hiroshi Sugimura, Tokyo, JP;
Toshiaki Kurosu, Tokyo, JP;
Gaku Suzuki, Tokyo, JP;
Takao Tomono, Tokyo, JP;
Assignee:
Toppan Printing Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B28B 1/14 (2006.01); B29C 33/40 (2006.01); B29C 45/00 (2006.01); A61M 5/32 (2006.01); C25F 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention discloses a method of manufacturing a microneedle including the steps of forming an island etching mask having thickness distribution on a substrate, and processing the substrate into a needle by taking advantage of a difference in etching rates between the etching mask and the substrate. The invention enables to readily control a point angle and height of the manufactured needle.