公开(公告)号：US20230263713A1

公开(公告)日：2023-08-24

申请号：US18043550

申请日：2021-09-24

Applicant: SHISEIDO COMPANY, LTD. ,  NOF CORPORATION

Inventor： Tetsuya KANEMARU ,  Mayu KUMAGAI ,  Yuka IWAHASHI ,  Motoharu KIMURA ,  Takeshi YOSHIMURA ,  Mako IWASAKI

IPC: A61K8/36 ,  A61K8/19 ,  A61Q1/12

CPC classification number: A61K8/361 ,  A61K8/19 ,  A61Q1/12 ,  A61K2800/412

Abstract: The invention relates to fatty acid magnesium salt particles having an aspect ratio expressed by the following formula (1) of 1.0 or more and 2.0 or less in which the fatty acid has 12 to 22 carbon atoms and in which the average thickness of the fatty acid magnesium salt particles is 250 to 600 nm.


Aspect Ratio=Major axis diameter of Particle (μm)/Minor axis diameter of Particle (μm)  formula (1)

公开(公告)号：US20230263714A1

公开(公告)日：2023-08-24

申请号：US18043558

申请日：2021-09-24

Applicant: SHISEIDO COMPANY, LTD.

Inventor： Mayu KUMAGAI ,  Motoharu KIMURA ,  Tetsuya KANEMARU ,  Yuka IWAHASHI

IPC: A61K8/36 ,  A61Q1/12 ,  A61K8/02 ,  A61K8/29

CPC classification number: A61K8/361 ,  A61Q1/12 ,  A61K8/022 ,  A61K8/29 ,  A61K2800/412

Abstract: The invention relates to a cosmetic containing fatty acid magnesium salt particles and fine particle titanium oxide in which the fatty acid magnesium salt particles have a fatty acid having 12 to 22 carbon atoms, an aspect ratio expressed by the following formula (1) of 1.0 or more and 2.0 or less and an average thickness of 250 to 600 nm.


Aspect Ratio=Major axis diameter of Particle (μm)/Minor axis diameter of Particle (μm)  formula (1)

公开(公告)号：US20230077466A1

公开(公告)日：2023-03-16

申请号：US17796092

申请日：2021-02-17

Applicant: SHISEIDO COMPANY, LTD. ,  NOF CORPORATION

Inventor： Tetsuya KANEMARU ,  Yoshihiro NISHIYAMA ,  Takuya HIRUMA ,  Yuka IWAHASHI ,  Takeshi YOSHIMURA ,  Mako IWASAKI

IPC: A61K8/36 ,  A61Q19/10

Abstract: The invention relates to particles of a calcium salt of a fatty acid having 12 to 22 carbon atoms, wherein the median size is 4.0 μm to 15.0 μm, the particle size digest A expressed by the following equation (1) satisfies the relation A≤2.0, and the average thickness is 350 to 800 nm. Particle size digest A=(D90−D10)/D50  equation (1) (Here, 4.0≤D50≤15.0.) D10: the 10% cumulative size (μm) of the fatty acid calcium salt particles on a volumetric basis D50: the median size (μm) of the fatty acid calcium salt particles on a volumetric basis D90: the 90% cumulative size (μm) of the fatty acid calcium salt particles on a volumetric basis