Patents by Inventor Mamoru Itani

Mamoru Itani 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: 8133343
    Abstract: A method comprising a step of manufacturing an elastic laminated body by laminating two webs and while inserting an elastic member in an extended state in a web length direction in between; a step of cutting the elastic laminated body in a length direction so that a concave portion and a convex portion appear alternately; a step of attaching a cover sheet to bridge between the concave portion and the convex portion of cut first elastic laminated body and second elastic laminated body, respectively; a step of widening the first elastic laminated body and the second elastic laminated body to which the cover sheet is attached; and a step of attaching an absorber onto the cover sheet, lessens the occurrence of wrinkles and creases produced when webs are cut, and eliminates a problem attributed to the occurrence of wrinkles and arising when an absorber is attached.
    Type: Grant
    Filed: April 12, 2010
    Date of Patent: March 13, 2012
    Assignee: Zuiko Corporation
    Inventors: Takao Wada, Toyoshi Umebayashi, Shuhei Kurata, Mamoru Itani
  • Publication number: 20100193111
    Abstract: A method comprising a step of manufacturing an elastic laminated body by laminating two webs and while inserting an elastic member in an extended state in a web length direction in between; a step of cutting the elastic laminated body in a length direction so that a concave portion and a convex portion appear alternately; a step of attaching a cover sheet to bridge between the concave portion and the convex portion of cut first elastic laminated body and second elastic laminated body, respectively; a step of widening the first elastic laminated body and the second elastic laminated body to which the cover sheet is attached; and a step of attaching an absorber onto the cover sheet, lessens the occurrence of wrinkles and creases produced when webs are cut, and eliminates a problem attributed to the occurrence of wrinkles and arising when an absorber is attached.
    Type: Application
    Filed: April 12, 2010
    Publication date: August 5, 2010
    Applicant: ZUIKO CORPORATION
    Inventors: Takao Wada, Toyoshi Umebayashi, Shuhei Kurata, Mamoru Itani
  • Patent number: 7754044
    Abstract: A method comprising a step of manufacturing an elastic laminated body by laminating two webs and while inserting an elastic member in an extended state in a web length direction in between; a step of cutting the elastic laminated body in a length direction so that a concave portion and a convex portion appear alternately; a step of attaching a cover sheet to bridge between the concave portion and the convex portion of cut first elastic laminated body and second elastic laminated body, respectively; a step of widening the first elastic laminated body and the second elastic laminated body to which the cover sheet is attached; and a step of attaching an absorber onto the cover sheet, lessens the occurrence of wrinkles and creases produced when webs are cut, and eliminates a problem attributed to the occurrence of wrinkles and arising when an absorber is attached.
    Type: Grant
    Filed: August 4, 2004
    Date of Patent: July 13, 2010
    Assignee: Zuiko Corporation
    Inventors: Takao Wada, Toyoshi Umebayashi, Shuhei Kurata, Mamoru Itani
  • Patent number: 7407557
    Abstract: A method includes producing an elastic strip material (12) by sandwiching an elastic member (4) between two webs (10, 11) under a stretched state in the longitudinal direction of the webs (10, 11), halving the elastic strip material (12) in the widthwise direction so that protrusions (12a) and recesses (12b) alternately appear, separating a first elastic strip material and a second elastic strip material obtained by halving in the widthwise direction, shifting the phases of the first and second elastic strip materials in the longitudinal direction so that the protrusions and the recesses become in phase, reducing the shrinking force of the elastic member near the protrusions (12a) of the first and second elastic strip materials (12A and 12B), and attaching an absorber (12c) onto parts (12c) of the first and second elastic strip materials (12A) where the shrinking force is reduced.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: August 5, 2008
    Assignee: Zuiko Corporation
    Inventors: Takao Wada, Mamoru Itani, Shuhei Kurata
  • Publication number: 20060254708
    Abstract: A method comprising a step of manufacturing an elastic laminated body by laminating two webs and while inserting an elastic member in an extended state in a web length direction in between; a step of cutting the elastic laminated body in a length direction so that a concave portion and a convex portion appear alternately; a step of attaching a cover sheet to bridge between the concave portion and the convex portion of cut first elastic laminated body and second elastic laminated body, respectively; a step of widening the first elastic laminated body and the second elastic laminated body to which the cover sheet is attached; and a step of attaching an absorber onto the cover sheet, lessens the occurrence of wrinkles and creases produced when webs are cut, and eliminates a problem attributed to the occurrence of wrinkles and arising when an absorber is attached.
    Type: Application
    Filed: August 4, 2004
    Publication date: November 16, 2006
    Applicant: Zuiko Corporation
    Inventors: Takao Wada, Toyoshi Umebayashi, Shuhei Kurata, Mamoru Itani
  • Publication number: 20060244166
    Abstract: A method includes producing an elastic strip material (12) by sandwiching an elastic member (4) between two webs (10, 11) under a stretched state in the longitudinal direction of the webs (10, 11), halving the elastic strip material (12) in the widthwise direction so that protrusions (12a) and recesses (12b) alternately appear, separating a first elastic strip material and a second elastic strip material obtained by halving in the widthwise direction, shifting the phases of the first and second elastic strip materials in the longitudinal direction so that the protrusions and the recesses become in phase, reducing the shrinking force of the elastic member near the protrusions (12a) of the first and second elastic strip materials (12A and 12B), and attaching an absorber (12c) onto parts (12c) of the first and second elastic strip materials (12A) where the shrinking force is reduced.
    Type: Application
    Filed: December 18, 2002
    Publication date: November 2, 2006
    Applicant: ZUIKO CORPORATION
    Inventors: Takao Wada, Mamoru Itani, Shuhei Kurata