Patents by Inventor Rina IIKUBO

Rina IIKUBO has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Hair treatment method and hair treatment tool
    Patent number: 11564468
    Abstract: The invention relates to a hair treatment method for treating hair by using a hair treatment tool (1). The hair treatment tool (1) includes: a fiber structure member (5) that retains a hair cosmetic; and a liquid-impermeable sheet (3) to which the fiber structure member (5) is fixed. The fiber structure member (5) retains a hair cosmetic that includes a pigment and a film-forming resin, and is sealed in a packaging (2). The hair treatment method of the invention treats hair by: exposing a surface of the fiber structure member (5) of the hair treatment tool (1); and bringing the fiber structure member (5) into contact with hair, and in this state, moving the fiber structure member (5) in a direction of orientation of the hair.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: January 31, 2023
    Assignee: Kao Corporation
    Inventors: Rina Iikubo, Shuichiro Kobaru, Yuki Kotaka, Aguri Maruyama, Kohsuke Kawaguchi
  • Sheet-shaped hair cosmetic and hair treatment method and scalp-wiping method using same
    Patent number: 10391041
    Abstract: A sheet-like hair care product including (A) a substrate sheet containing cellulosic fibers and having a bending resistance of 10 to 70 mm measured by the 45° cantilever method in accordance with JIS L1096:2010 and (B) a liquid cosmetic composition. The substrate sheet (A) is impregnated with 1 to 50 g of the liquid cosmetic composition (B). The substrate sheet impregnated with the liquid cosmetic composition is preferably packaged in a packaging container having an access opening with an area of 25 to 4000 mm2 and an openable and closable lid sealing the contents.
    Type: Grant
    Filed: April 1, 2014
    Date of Patent: August 27, 2019
    Assignee: Kao Corporation
    Inventors: Eiichi Nishizawa, Azusa Kasuga, Keiko Ishii, Rina Iikubo, Kaori Kojima
  • HAIR TREATMENT METHOD AND HAIR TREATMENT TOOL
    Publication number: 20190208883
    Abstract: The invention relates to a hair treatment method for treating hair by using a hair treatment tool (1). The hair treatment tool (1) includes: a fiber structure member (5) that retains a hair cosmetic; and a liquid-impermeable sheet (3) to which the fiber structure member (5) is fixed. The fiber structure member (5) retains a hair cosmetic that includes a pigment and a film-forming resin, and is sealed in a packaging (2). The hair treatment method of the invention treats hair by: exposing a surface of the fiber structure member (5) of the hair treatment tool (1); and bringing the fiber structure member (5) into contact with hair, and in this state, moving the fiber structure member (5) in a direction of orientation of the hair.
    Type: Application
    Filed: June 22, 2017
    Publication date: July 11, 2019
    Applicant: Kao Corporation
    Inventors: Rina IIKUBO, Shuichiro KOBARU, Yuki KOTAKA, Aguri MARUYAMA, Kohsuke KAWAGUCHI
  • SHEET-SHAPED HAIR COSMETIC AND HAIR TREATMENT METHOD AND SCALP-WIPING METHOD USING SAME
    Publication number: 20160051452
    Abstract: A sheet-like hair care product including (A) a substrate sheet containing cellulosic fibers and having a bending resistance of 10 to 70 mm measured by the 45° cantilever method in accordance with JIS L1096:2010 and (B) a liquid cosmetic composition. The substrate sheet (A) is impregnated with 1 to 50 g of the liquid cosmetic composition (B). The substrate sheet impregnated with the liquid cosmetic composition is preferably packaged in a packaging container having an access opening with an area of 25 to 4000 mm2 and an openable and closable lid sealing the contents.
    Type: Application
    Filed: April 1, 2014
    Publication date: February 25, 2016
    Applicant: Kao Corporation
    Inventors: Eiichi NISHIZAWA, Azusa KASUGA, Keiko ISHII, Rina IIKUBO, Kaori KOJIMA