公开(公告)号：US20250090822A1

公开(公告)日：2025-03-20

申请号：US18292103

申请日：2022-08-19

Applicant: HISAMITSU PHARMACEUTICAL CO., INC.

Inventor： Tetsuji KUWAHARA ,  Keiichiro TSURUSHIMA ,  Masafumi ONO ,  Masato WAKAMATSU ,  Tetsuro TATEISHI

IPC: A61M37/00 ,  A61K9/00 ,  A61K47/32

Abstract: A microneedle patch according to one example includes a backing, an adhesive layer provided on the main surface of the backing, and a microneedle array at least a part of which is positioned within the adhesive layer, wherein the adhesive layer includes a water-soluble polymer and water, and a loss tangent of the adhesive layer under measurement conditions of an environmental temperature of 25° C. and a frequency of 1 Hz is 0.20 to 0.41.

公开(公告)号：US20250161229A1

公开(公告)日：2025-05-22

申请号：US18839843

申请日：2022-12-22

Applicant: HISAMITSU PHARMACEUTICAL CO., INC.

Inventor： Sho SATO ,  Keiichiro TSURUSHIMA ,  Shinji YAMASOTO ,  Tetsuro TATEISHI

IPC: A61K9/70 ,  A61K45/06 ,  A61K47/02 ,  A61K47/38

Abstract: The present invention relates to a poultice including: a backing layer; and an adhesive agent layer, wherein the adhesive agent layer comprises at least one selected from the group consisting of carboxymethyl cellulose and pharmaceutically acceptable salts thereof; a silicic anhydride; a drug; and a water-soluble polymer; and a particle diameter D50 at which a cumulative volume in a particle size distribution of the silicic anhydride becomes 50% is 0.2 to 9.0 μm.

公开(公告)号：US20240067441A1

公开(公告)日：2024-02-29

申请号：US18270760

申请日：2022-02-14

Applicant: HISAMITSU PHARMACEUTICAL CO., INC.

Inventor： Keiichiro TSURUSHIMA ,  Shinji YAMASOTO ,  Tetsuro TATEISHI

IPC: B65D83/08 ,  B65D75/58 ,  B65D85/62

CPC classification number: B65D83/0805 ,  B65D75/5855 ,  B65D83/0894 ,  B65D85/62 ,  B65D2575/586

Abstract: A packaging bag according to one example includes: a bag body configured to store a plurality of folded patches; an opening formed in the bag body; and a flap label configured to cover the opening such that the opening is capable of being opened and closed. The opening is formed such that Lp/La is 1.5 to 2.5 and Lq/Lb is 1.8 to 2.8, where La denotes a first length of the opening along a first direction, Lp denotes a first length of the folded patch along the first direction, Lb denotes a second length of the opening along a second direction orthogonal to the first direction, the second length being shorter than the first length, and Lq denotes a second length of the folded patch along the second direction.