Makeup brush

Patent metadata

Field	Value
Publication number	US-11406175-B2
Application number	US-201816625489-A
Country	US
Kind code	B2
Filing date	Jul 27, 2018
Priority date	Jul 31, 2017
Publication date	Aug 9, 2022
Grant date	Aug 9, 2022

Abstract

[Problem] This invention provides a makeup brush that not only enables easy application of cosmetics such as blushers and eyeshadows while creating gradations, but also achieves a beautiful finish, without requiring special makeup techniques.[Solution] A makeup brush 1, wherein an upper opening portion 2a of a cylindrical member 2 is formed into an arc shape having a predetermined width when planarly viewed, and a tip surface 3a of a brush 3 that is formed by tips of bristles extending upward from the upper opening portion of the cylindrical member is a composite curved surface having a first protruding curved surface 6 that is formed in such a manner that a length of brush bristles becomes gradually longer from an inner curved surface 4 having the arc shape toward an outer curved surface 5 having the arc shape, and a second protruding curved surface 7 that is formed in such a manner that the length of the brush bristles gradually changes along a length direction of the arc shape and that the brush bristles are the longest at approximately a central portion.

First claim

The invention claimed is:

1. A makeup brush, wherein an upper opening and a lower end of a cylindrical member is formed into an arc shape having a predetermined width when planarly viewed, and a tip surface of a brush that is formed by tips of bristles extending upward from the upper opening of the cylindrical member is a composite curved surface having a first protruding curved surface that is formed in such a manner that a length of brush bristles becomes gradually longer from an inner curved surface having the arc shape toward an outer curved surface having the arc shape, and a second protruding curved surface that is formed in such a manner that the length of the brush bristles gradually changes along a length direction of the arc shape and that the brush bristles are the longest at approximately a central portion,
the arc shape of the upper opening and the lower end comprises a first arc and a second arc, and
the first arc and the second arc of the upper opening and lower end are concave in a same direction.

2. The makeup brush according to claim 1 , wherein the upper opening of the cylindrical member is in the arc shape that has a curvature radius of 5 to 80 mm when planarly viewed.

3. The makeup brush according to claim 1 , wherein the first protruding curved surface has a curvature radius of 5 to 60 mm.

4. The makeup brush according to claim 1 , wherein the second protruding curved surface has a curvature radius of 5 to 80 mm.

5. A cosmetic product obtained by combining the makeup brushes of claim 1 .

Assignees

• Shiseido Co Ltd

Inventors

• Matsuura Kazushi
• Takata Motoki
• Okamoto Miyako
• Nieda Ai
• Itou Mika

Classifications

• A46B2200/1046

  Brush used for applying cosmetics · CPC title

• A46B9/021 Primary

  arranged like in cosmetics brushes, e.g. mascara, nail polish, eye shadow · CPC title

• A46B3/02

  by pitch, resin, cement, or other adhesives · CPC title

• A46B9/028

  Bristle profile, the end of the bristle defining a surface other than a single plane or deviating from a simple geometric form, e.g. cylinder, sphere or cone · CPC title

• A45D34/04

  Appliances specially adapted for applying liquid, e.g. using roller or ball · CPC title