Patents by Inventor Haruko Kawaguchi

Haruko Kawaguchi 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).

  • Publication number: 20020177836
    Abstract: A shorts-type disposable diaper including a liquid permeable topsheet, a liquid impermeable backsheet, and an absorber interposed between the topsheet and the backsheet, front and rear waist portions being connected together at opposite sides thereof, respectively, the improvement including a tape fastener adapted to fasten the diaper when the diaper is to be discarded, the tape fastener being disposed at a central outer surface section of the backsheet and extending in a longitudinal direction of the backsheet.
    Type: Application
    Filed: July 17, 2002
    Publication date: November 28, 2002
    Applicant: Kao Corporation
    Inventors: Toru Hayase, Harumitsu Toyoda, Haruko Kawaguchi
  • Patent number: 6451000
    Abstract: A short-type disposable diaper including a liquid permeable topsheet, a liquid impermeable backsheet, and an absorber interposed between the topsheet and the backsheet, front and rear waist portions being connected together at opposite sides thereof, respectively, the improvement including a tape fastener adapted to fasten the diaper when the diaper is to be discarded, the tape fastener being disposed at a central outer surface section of the backsheet and extending in a longitudinal direction of the backsheet.
    Type: Grant
    Filed: August 5, 1997
    Date of Patent: September 17, 2002
    Assignee: Kao Corporation
    Inventors: Toru Hayase, Harumitsu Toyoda, Haruko Kawaguchi
  • Patent number: 6007527
    Abstract: A disposable diaper including a liquid permeable topsheet, a liquid impermeable backsheet, and an absorbent member interposed therebetween, the disposable diaper being provided with a front waist body portion which is located on the stomach side of a diaper wearer when the wearer puts on the diaper and a rear waist body portion which is located on the back side of the wearer, the rear waist body portion being provided with tape tabs connected at opposite lateral sides thereof, respectively, each of the tape tabs being provided with a projection member or a recess member of a mechanical fastener, the front waist body portion being provided with a counterpart portion on the backsheet side for allowing the projection member or the recess member to be engaged with or be retained by the counterpart portion;each of the tape tabs including an adhesive portion which is formed by applying an adhesive agent thereto;the adhesive portion being provided on the surface side of the tape tab opposite to where the projection
    Type: Grant
    Filed: December 3, 1996
    Date of Patent: December 28, 1999
    Assignee: Kao Corporation
    Inventors: Haruko Kawaguchi, Megumi Kato, Harumitsu Toyoda, Taiki Uchiyama
  • Patent number: 5836931
    Abstract: A shorts type disposable diaper includes an absorptive body having a liquid permeable topsheet, a liquid impermeable backsheet, and an absorber interposed between the topsheet and the backsheet. The absorptive body is divided into a stomach side portion, an under-crotch portion, and a back side portion, substantially continuous elastically expansible members being disposed over entire peripheral edge portions of a waist opening and a pair of leg openings which are formed by fixedly connecting confronting opposite side portions between the stomach side portion and the back side portion. The absorber is 8 mm or less in thickness and 100 mm or more in width in the under-crotch portion, and the distance from a side edge of the under-crotch portion of the absorber to the elastically expansible members disposed in the leg opening is 15 mm or more.
    Type: Grant
    Filed: September 10, 1996
    Date of Patent: November 17, 1998
    Assignee: Kao Corporation
    Inventors: Harumitsu Toyoda, Kazuhiro Tagawa, Yoshinobu Machida, Kenji Ando, Haruko Kawaguchi
  • Patent number: 5735839
    Abstract: The shorts type disposable diaper (1) of the present invention is characterized by a plurality of elastic members (4) provided at the urination point (40) located below the body-surrounding portion (30) and in the vicinity of the urination portion of the wearer, thereby forming continuous gathers in the width direction of the diaper. The shorts type disposable diaper (1) is also characterized by a plurality of elastic members (31) provided at the body-surrounding portion (30) in such a manner that the interval of the elastic members (31) becomes narrower towards the waist opening portion (10) and that the elongation of the elastic members (31) increases towards the waist opening portion (10).
    Type: Grant
    Filed: June 11, 1996
    Date of Patent: April 7, 1998
    Assignee: Kao Corporation
    Inventors: Haruko Kawaguchi, Masao Kurahashi, Harumitsu Toyoda
  • Patent number: 5449353
    Abstract: In a disposable diaper including a body having a liquid permeable topsheet, a liquid impermeable backsheet, and an absorbent member interposed therebetween, the body being divided into a stomach portion which, when in wear, is located on a wearer's stomach side and a back portion which, when in wear, is located on his back side, the stomach portion and the back portion being connected and fixed together at both side edge portions, respectively, of the stomach and back portions to form a pair of leg opening portions and a unitary waist opening portion, the waist opening portion and pair of leg opening portions being provided around entire peripheral edges thereof with elastic members forming substantially continuous gathers.
    Type: Grant
    Filed: October 1, 1993
    Date of Patent: September 12, 1995
    Assignee: Kao Corporation
    Inventors: Hisanori Watanabe, Kenji Ando, Haruko Kawaguchi
  • Patent number: 5415649
    Abstract: In a disposable diaper including a body having a liquid permeable topsheet, a liquid impermeable backsheet, and an absorbent member interposed therebetween, the body being divided into a stomach portion which, when in wear, is located on a wearer's stomach side and a back portion which, when in wear, is located on his back side, the stomach portion and the back portion being connected and fixed together at both side edge portions, respectively, of the stomach and back portions to form a pair of leg opening portions and a unitary waist opening portion, the waist opening portion and pair of leg opening portions being provided around entire peripheral edges thereof with elastic members forming substantially continuous gathers.
    Type: Grant
    Filed: October 29, 1991
    Date of Patent: May 16, 1995
    Assignee: KAO Corporation
    Inventors: Hisanori Watanabe, Kenji Ando, Haruko Kawaguchi