公开(公告)号：US12161741B2

公开(公告)日：2024-12-10

申请号：US17260821

申请日：2019-07-08

Applicant: Shiseido Company, Ltd.

Inventor： Shoko Arino ,  Yukiko Hiruma

IPC: A61K31/416 ,  A61K8/04 ,  A61K8/34 ,  A61K8/37 ,  A61K8/41 ,  A61K8/81 ,  A61K8/86 ,  A61Q19/00

Abstract: An objective of the present invention is to provide a gel-type skin preparation for external use into which a di-chain cationic surfactant can be stably blended without precipitation over time and which can be spread topically on skin. The gel preparation according to the present invention comprises (a) a di-chain cationic surfactant having a specific structure, (b) an oil in which component (a) is soluble, (c) a lower alcohol, (d) a water-soluble thickener, and (e) water.

公开(公告)号：US11160736B2

公开(公告)日：2021-11-02

申请号：US16308841

申请日：2016-11-18

Applicant: SHISEIDO COMPANY, LTD.

Inventor： Shihoka Ohashi ,  Yukiko Hiruma ,  Takashi Matsuda ,  Takashi Matsui

IPC: A61K8/37 ,  A61Q1/04 ,  A61Q1/06 ,  A61K8/31 ,  A61K8/895 ,  A61K8/60 ,  A61K8/41 ,  A61K8/44 ,  A61K8/81 ,  A61Q17/04 ,  A61K8/27 ,  A61K8/29 ,  A61K8/40 ,  A61K8/02 ,  A61K8/73 ,  A61K8/92

Abstract: A lip cosmetic has a high transparency without giving unnatural whiteness and exerts a remarkable effect of ultraviolet ray protection over a broad wavelength range including the UVA and UVB regions. The lip cosmetic includes (A) at least 5% by mass of UV absorbers; wherein said (A) UV absorbers comprises (A1) at least one UV absorber selected from a group consisting of octocrylene, dimethicodiethylbenzalmalonate and diethylamino hydroxybenzoyl hexyl benzoate, and (A2) ethylhexyl methoxycinnamate; (B) a high-viscosity oil component in a range of 30% by mass to 70% by mass thereof; (C) a low-viscosity oil component in a range of 20% by mass to 40% by mass thereof, and (D) titanium dioxide and zinc oxide of which a total content is at most 0.5% by mass thereof; and wherein a sun-protection-factor (SPF) of the lip cosmetic is at least 20, and a critical wavelength thereof is at a shortest 370 nm.