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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.:

US 9987236 B1

PDFFull Text
Date of Patent:
Jun. 05, 2018

Filed:

Jan. 11, 2017

Transdermal absorption sheet, and manufacturing method for the same

Applicant:

Fujifilm Corporation, Tokyo, JP;

Inventors:

Junya Yoshida, Ashigarakami-gun, JP;

Seiji Kasahara, Ashigarakami-gun, JP;

Takayoshi Oyamada, Ashigarakami-gun, JP;

Yanlong Che, Ashigarakami-gun, JP;

Assignee:

FUJIFILM Corporation, Tokyo, JP;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Robert A Wax

Assistant Examiner:

Melissa S Mercier

Int. Cl.
CPC ...
A61K 9/70 (2006.01); A61M 37/00 (2006.01); A61K 8/73 (2006.01); A61Q 19/08 (2006.01); A61K 8/02 (2006.01); A61K 9/00 (2006.01); A61K 38/27 (2006.01); A61K 38/38 (2006.01); B29C 41/22 (2006.01); B29C 59/00 (2006.01); B29C 59/02 (2006.01); B29L 31/00 (2006.01);
U.S. Cl.
CPC ...
A61K 9/703 (2013.01); A61K 8/0204 (2013.01); A61K 8/732 (2013.01); A61K 8/735 (2013.01); A61K 9/0021 (2013.01); A61K 38/27 (2013.01); A61K 38/385 (2013.01); A61M 37/0015 (2013.01); A61Q 19/08 (2013.01); B29C 41/22 (2013.01); B29C 59/005 (2013.01); B29C 59/022 (2013.01); A61K 2800/91 (2013.01); A61M 2037/0023 (2013.01); A61M 2037/0046 (2013.01); A61M 2037/0053 (2013.01); B29C 2059/023 (2013.01); B29K 2995/0056 (2013.01); B29K 2995/0065 (2013.01); B29L 2031/7544 (2013.01);
Abstract

A transdermal absorption sheet and a manufacturing method for the transdermal absorption sheet includes a laminating step of forming a multilayer film with a viscosity difference by forming, on a support, a lower layer containing a first transdermal absorption material and an upper layer containing a drug and a second transdermal absorption material and having a lower viscosity than the lower layer, a filling step of filling needle-like recessed portions corresponding to inverted needle-like protruding portions with a solution of the transdermal absorption material by pressing a mold in which the needle-like recessed portions are arranged in a two-dimensional array, against a surface of the multilayer film supported by the support to allow the multilayer film to flow, a solidifying step of solidifying the multilayer film with the mold pressed against the surface of the multilayer film, and a peeling-off step of peeling the solidified multilayer film from the mold.

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