Patents by Inventor Masato Isono

Masato Isono 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: 8834438
    Abstract: The covering member includes an inner side surface being in contact with the absorber and an outer side surface to come into contact with a vaginal wall when in use. The covering member contains a hydrophobic fiber with a low affinity to water and a hydrophilic fiber with a high affinity to water. In the outer side surface, an abundance ratio of the hydrophobic fiber is higher than an abundance ratio of the hydrophilic fiber.
    Type: Grant
    Filed: February 22, 2010
    Date of Patent: September 16, 2014
    Assignee: Uni-Charm Corporation
    Inventors: Akie Kinoshita, Masato Isono, Koichi Yamaki, Hitoshi Watanabe
  • Patent number: 8182732
    Abstract: Here is disclosed a composite sheet comprising substantially non-stretchable nonwoven fabric sheets and a plurality of elastic members extending in a transverse direction and spaced one from another in a longitudinal direction by a given spacing wherein the elastic members are secured in a stretched state to the nonwoven fabric sheets. The composite sheet has a plurality of gathers formed by slightly undulated surface of the nonwoven fabric sheets and the elastic members and these gathers are substantially continuous in the longitudinal direction and arranged at substantially regular intervals in the transverse direction.
    Type: Grant
    Filed: October 21, 2004
    Date of Patent: May 22, 2012
    Assignee: Uni-Charm Corporation
    Inventors: Kazuo Ukegawa, Masato Isono, Hiroaki Kamio, Toru Oba
  • Publication number: 20120053550
    Abstract: The covering member includes an inner side surface being in contact with the absorber and an outer side surface to come into contact with a vaginal wall when in use. The covering member contains a hydrophobic fiber with a low affinity to water and a hydrophilic fiber with a high affinity to water. In the outer side surface, an abundance ratio of the hydrophobic fiber is higher than an abundance ratio of the hydrophilic fiber.
    Type: Application
    Filed: February 22, 2010
    Publication date: March 1, 2012
    Applicant: UNICHARM CORPORATION
    Inventors: Akie Kinoshita, Masato Isono, Koichi Yamaki, Hitoshi Watanabe
  • Patent number: 7662137
    Abstract: A disposable diaper is formed in one of front and rear waist regions with first wings which are elastically stretchable in a waist-surrounding direction and these first wings are provided on respective body facing surfaces with first fastener elements. The other waist region is provided on its undergarment facing surface with, in addition to second fastener elements, anti-slip zones exhibiting a desired average kinetic frictional force relative to the body facing surface of the first wings.
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: February 16, 2010
    Assignee: Uni-Charm Corporation
    Inventors: Yasushi Sayama, Hironao Minato, Koichiro Tani, Koichiro Mitsui, Kengo Ochi, Masato Isono
  • Patent number: 6902793
    Abstract: Here is disclosed a composite sheet comprising substantially non-stretchable nonwoven fabric sheets and a plurality of elastic members extending in a transverse direction and spaced one from another in a longitudinal direction by a given spacing wherein the elastic members are secured in a stretched state to the nonwoven fabric sheets. The composite sheet has a plurality of gathers formed by slightly undulated surface of the nonwoven fabric sheets and the elastic members and these gathers are substantially continuous in the longitudinal direction and arranged at substantially regular intervals in the transverse direction.
    Type: Grant
    Filed: June 7, 2002
    Date of Patent: June 7, 2005
    Assignee: Uni-Charm Corporation
    Inventors: Kazuo Ukegawa, Masato Isono, Hiroaki Kamio, Toru Oba
  • Publication number: 20050084656
    Abstract: Here is disclosed a composite sheet comprising substantially non-stretchable nonwoven fabric sheets and a plurality of elastic members extending in a transverse direction and spaced one from another in a longitudinal direction by a given spacing wherein the elastic members are secured in a stretched state to the nonwoven fabric sheets. The composite sheet has a plurality of gathers formed by slightly undulated surface of the nonwoven fabric sheets and the elastic members and these gathers are substantially continuous in the longitudinal direction and arranged at substantially regular intervals in the transverse direction.
    Type: Application
    Filed: October 21, 2004
    Publication date: April 21, 2005
    Inventors: Kazuo Ukegawa, Masato Isono, Hiroaki Kamio, Toru Oba
  • Publication number: 20040111076
    Abstract: A disposable diaper is formed in one of front and rear waist regions with first wings which are elastically stretchable in a waist-surrounding direction and these first wings are provided on respective body facing surfaces with first fastener means. The other waist region is provided on its undergarment facing surface with, in addition to second fastener means, anti-slip zones exhibiting a desired average kinetic frictional force relative to the body facing surface of the first wings.
    Type: Application
    Filed: November 25, 2003
    Publication date: June 10, 2004
    Inventors: Yasushi Sayama, Hironao Minato, Koichiro Tani, Koichiro Mitsui, Kengo Ochi, Masato Isono
  • Publication number: 20030031834
    Abstract: Here is disclosed a composite sheet comprising substantially non-stretchable nonwoven fabric sheets and a plurality of elastic members extending in a transverse direction and spaced one from another in a longitudinal direction by a given spacing wherein the elastic members are secured in a stretched state to the nonwoven fabric sheets. The composite sheet has a plurality of gathers formed by slightly undulated surface of the nonwoven fabric sheets and the elastic members and these gathers are substantially continuous in the longitudinal direction and arranged at substantially regular intervals in the transverse direction.
    Type: Application
    Filed: June 7, 2002
    Publication date: February 13, 2003
    Inventors: Kazuo Ukegawa, Masato Isono, Hiroaki Kamio, Toru Oba
  • Publication number: 20030023220
    Abstract: A pants-type disposable wearing article includes a chassis member and a liquid-absorbent member. A plurality of waist-surrounding elastic members extending in a waist-surrounding direction across front and rear waist regions are spaced one from another at a given distance in a longitudinal direction and secured in a stretched state to the chassis member so that a plurality of gathers are formed on the chassis member as the elastic members contract. The gathers formed by undulation of the chassis member by contraction of the elastic members extend continuously in the longitudinal direction, i.e., in the direction generally perpendicular to the elastic members, so as to be arranged in the waist-surrounding direction substantially at regular intervals.
    Type: Application
    Filed: June 5, 2002
    Publication date: January 30, 2003
    Inventors: Kazuo Ukegawa, Masato Isono, Hiroaki Kamio, Toru Oba