Patents by Inventor Masahiko Niinomi

Masahiko Niinomi 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: 8373016
    Abstract: An absorbent member (10) of the invention has a hydrophilic continuous fiber web (12) and lumpy particles of an absorbent polymer (13) held in the web (12). The absorbent polymer (13) is localized in part in a planar or thickness direction of the absorbent member (10). The continuous fibers in a region (M) in a planar direction of the web (12) where the absorbent polymer is distributed are in a state cut into a large number of staple fibers (122). A method of producing an absorbent member includes the step of spreading lumpy particles of an absorbent polymer (13) on a continuous fiber web (12) and pressing the continuous fibers in part of the web (12) onto the absorbent polymer (13) to cut the continuous fibers.
    Type: Grant
    Filed: March 19, 2007
    Date of Patent: February 12, 2013
    Assignee: Kao Corporation
    Inventors: Takao Kasai, Masahiko Niinomi, Takuya Kouta, Rumiko Kasahara, Akira Noda
  • Publication number: 20100022978
    Abstract: An absorbent member (10) of the invention has a hydrophilic continuous fiber web (12) and lumpy particles of an absorbent polymer (13) held in the web (12). The absorbent polymer (13) is localized in part in a planar or thickness direction of the absorbent member (10). The continuous fibers in a region (M) in a planar direction of the web (12) where the absorbent polymer is distributed are in a state cut into a large number of staple fibers (122). A method of producing an absorbent member includes the step of spreading lumpy particles of an absorbent polymer (13) on a continuous fiber web (12) and pressing the continuous fibers in part of the web (12) onto the absorbent polymer (13) to cut the continuous fibers.
    Type: Application
    Filed: March 19, 2007
    Publication date: January 28, 2010
    Applicant: Kao Corporation
    Inventors: Takao Kasai, Masahiko Niinomi, Takuya Kouta, Rumiko Kasahara, Akira Noda
  • Publication number: 20090076473
    Abstract: An absorbent article 10 has an absorbent member 1. The absorbent member 1 includes a web 2 of hydrophilic continuous fibers and a superabsorbent polymer 3 embeddedly supported in the web 2. The superabsorbent polymer 3 has its particle size varied between the topsheet side and the backsheet side of the web 2, preferably has a larger size in the topsheet side than in the backsheet side of the web 2. The superabsorbent polymer preferably has a rate of liquid permeation of 150 to 1500 g/min under a load of 0.6 kPa. The continuous fibers are preferably crimped fibers with a crimp percentage of 10% to 90%.
    Type: Application
    Filed: April 24, 2006
    Publication date: March 19, 2009
    Applicant: Kao Corporation
    Inventors: Takao Kasai, Takuya Kouta, Takahiro Katoh, Masahiko Niinomi
  • Publication number: 20080167634
    Abstract: Disclosed is an absorbent article having an absorbent member. The absorbent member has an absorbent core wrapped in a sheet of a fibrous material. The absorbent core contains a web of hydrophilic, crimped continuous fibers and a superabsorbent polymer which is embeddedly supported in the web. The continuous fibers are preferably oriented in the planar direction of the absorbent member. Also disclosed is an absorbent article having an absorbent member, in which a web of hydrophilic, crimped continuous fibers and a fiber accumulated layer or a nonwoven fabric are superposed on each other. The fiber accumulated layer and the nonwoven fabric are made of natural pulp and/or synthetic fibers and may or may not contain a superabsorbent polymer. The continuous fibers are oriented in the planar direction of the absorbent member.
    Type: Application
    Filed: March 20, 2006
    Publication date: July 10, 2008
    Inventors: Takuya Kouta, Takao Kasai, Takahiro Katoh, Masahiko Niinomi
  • Publication number: 20060184149
    Abstract: An absorbent article has an absorbent member 1 containing a web 2 of hydrophilic long fibers. The long fibers have a crimp percentage of 40% to 90% and are oriented in the planar direction of the absorbent member 1. The web 2 has a superabsorbent polymer embeddedly supported therein. The absorbent member 1 preferably has two or more webs 2 and a superabsorbent polymer layer 3 sprinkled between the webs 2, with part of the superabsorbent polymer being embeddedly supported in the web 2.
    Type: Application
    Filed: August 18, 2005
    Publication date: August 17, 2006
    Applicant: Kao Corporation
    Inventors: Takao Kasai, Takuya Kouta, Masahiko Niinomi