Patents by Inventor Nobuo Araya

Nobuo Araya 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).

  • Patent number: 9890487
    Abstract: A liquid-retaining sheet contains a liquid-retaining layer that is able to absorb a liquid component, and the liquid-retaining layer is formed from a nonwoven structural member containing a transparent fiber. In the liquid-retaining sheet, the transparency shown below is adjusted to not more than 0.27. Transparency=Whiteness (%) of a sheet impregnated with 700% by mass of water relative to the sheet mass/Basis weight (g/m2) The transparent fiber may contain a cellulose-series fiber substantially free from a carboxyl group (in particular, a regenerated cellulose fiber such as a solvent-spinning cellulose-series fiber). The proportion of the solvent-spinning cellulose-series fiber may be not less than 30% by mass in the transparent fiber. The liquid-retaining sheet may be a skin care sheet (in particular, a facial mask) that is impregnated with a liquid component containing a cosmetic preparation.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: February 13, 2018
    Assignee: KURARAY KURAFLEX CO., LTD.
    Inventors: Toru Ochiai, Kazuhisa Nakayama, Sumito Kiyooka, Nobuo Araya, Naoaki Moritani
  • Patent number: 9174411
    Abstract: A laminated sheet is produced by forming an adhesion layer permeable to a liquid component and contactable with a skin on at least one side of a liquid-retention layer comprising a nonwoven structural member and having an ability to absorb the liquid component. The adhesion layer comprises a nonwoven structural member comprising a fiber having a number-average fiber diameter of not more than 10 ?m, and the thickness ratio of the adhesion layer relative to the liquid-retention layer is 1/4 to 1/100 as a ratio of the adhesion layer/the liquid-retention layer. The fiber of the nonwoven structural member of the adhesion layer may have a standard deviation of fiber diameter of not more than 5. The nonwoven structural member of the liquid-retention layer may comprise a fiber having a fiber diameter larger than that of the fiber of the adhesion layer.
    Type: Grant
    Filed: July 7, 2010
    Date of Patent: November 3, 2015
    Assignee: KURARAYKURAFLEX CO., LTD.
    Inventors: Toru Ochiai, Shinichi Shigeki, Sumito Kiyooka, Ikuhisa Shiraishi, Nobuo Araya
  • Publication number: 20150125499
    Abstract: A liquid-retaining sheet contains a liquid-retaining layer that is able to absorb a liquid component, and the liquid-retaining layer is formed from a nonwoven structural member containing a transparent fiber. In the liquid-retaining sheet, the transparency shown below is adjusted to not more than 0.27. Transparency=Whiteness (%) of a sheet impregnated with 700% by mass of water relative to the sheet mass/Basis weight (g/m2) The transparent fiber may contain a cellulose-series fiber substantially free from a carboxyl group (in particular, a regenerated cellulose fiber such as a solvent-spinning cellulose-series fiber). The proportion of the solvent-spinning cellulose-series fiber may be not less than 30% by mass in the transparent fiber. The liquid-retaining sheet may be a skin care sheet (in particular, a facial mask) that is impregnated with a liquid component containing a cosmetic preparation.
    Type: Application
    Filed: June 11, 2013
    Publication date: May 7, 2015
    Applicant: Kuraray Kuraflex Co., Ltd.
    Inventors: Toru Ochiai, Kazuhisa Nakayama, Sumito Kiyooka, Nobuo Araya, Naoaki Moritani
  • Publication number: 20120107387
    Abstract: A laminated sheet is produced by forming an adhesion layer permeable to a liquid component and contactable with a skin on at least one side of a liquid-retention layer comprising a nonwoven structural member and having an ability to absorb the liquid component. The adhesion layer comprises a nonwoven structural member comprising a fiber having a number-average fiber diameter of not more than 10 ?m, and the thickness ratio of the adhesion layer relative to the liquid-retention layer is 1/4 to 1/100 as a ratio of the adhesion layer/the liquid-retention layer. The fiber of the nonwoven structural member of the adhesion layer may have a standard deviation of fiber diameter of not more than 5. The nonwoven structural member of the liquid-retention layer may comprise a fiber having a fiber diameter larger than that of the fiber of the adhesion layer.
    Type: Application
    Filed: July 7, 2010
    Publication date: May 3, 2012
    Applicant: KURARAYKURAFLEX CO., LTD.
    Inventors: Toru Ochiai, Shinichi Shigeki, Sumito Kiyooka, Ikuhisa Shiraishi, Nobuo Araya