Patents by Inventor Kazuo Ukegawa

Kazuo Ukegawa 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: 20120259304
    Abstract: A disposable wearing article includes a liquid-absorbent structure that is adapted to be spaced from the wearer's skin to protect the wearer's skin from being soiled with body waste. A crotch member defining parts of front and rear waist regions and a crotch region has a front end lying in the front waist region and a rear end lying in the rear waist region wherein at least one of the front and rear ends defines non-bonded regions in an intermediate zone as viewed in the transverse direction X of the crotch member and is attached to the outer surface of an elastic waist panel by the intermediary of square U-shaped bonded regions opening toward the crotch region. In areas defining the non-bonded regions, body waste retaining space(s) are formed between the elastic waist panel and the crotch member.
    Type: Application
    Filed: December 16, 2010
    Publication date: October 11, 2012
    Applicant: UNICHARM CORPORATION
    Inventors: Makoto Ichikawa, Kenichi Sasayama, Hiroki Yamamoto, Kazuo Ukegawa, Akihide Ninomiya
  • Publication number: 20120258277
    Abstract: A nozzle assembly includes an upstream block, an upstream shim, an intermediate shim, a downstream shim and a downstream block arranged in this order in a machine direction MD from the upstream side to the downstream side. A lower end of the nozzle is formed with grooves as guide grooves to support elastics. A first pipe, a dispersion slit for a web and convergence slits for a web define first flow channels wherein the slits are respectively formed with outlets for a web. A second pipe, a dispersion slit for elastics and convergence slits for elastics define a second flow channels wherein the slits are respectively formed with outlets for elastics. The outlets for elastics are formed in the respective guide grooves and each of the outlets for a web lies between each pair of the adjacent outlets for elastics as viewed in the cross direction CD.
    Type: Application
    Filed: December 16, 2010
    Publication date: October 11, 2012
    Applicant: UNICHARM CORPORATION
    Inventor: Kazuo Ukegawa
  • 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: 20110297301
    Abstract: In a method for continuously making pull-on disposable wearing, a web is fed in a machine direction. The web is formed with first fastener elements on both sides of a region defining a cut line extending in a cross direction. Second fastener elements on a fastener base sheet are engaged with the respective first fastener elements, and a region between these first fastener elements is cut away from the web. Then, the web is folded in two and a side edge of the web is bonded to the fastener base sheet. Thereafter, the web is successively cut along the cut lines to separate the web into segments each of which is a pull-on wearing article having front and rear waist regions adapted to be detachably connected with each other by the first and second fastener elements.
    Type: Application
    Filed: April 12, 2011
    Publication date: December 8, 2011
    Applicant: UNI-CHARM CORPORATION
    Inventor: Kazuo UKEGAWA
  • Patent number: 8012296
    Abstract: In a process for making disposable wearing article, a composite web running in a machine direction is formed with a pair of rectilinear slits extending in a cross direction and a notch intersecting these paired slits. A region surrounded by these slits and notch is cut away from the composite web to form a gap. In a step before the composite web is formed with the gap, second fastener means supported on a fastener base sheet strip are engaged with the associated pair of first fastener means previously bonded to the composite web opposed to each other about the gap as viewed in the machine direction and thereby the fastener base sheet strip is attached to the composite web so as to stride over the gap.
    Type: Grant
    Filed: March 16, 2010
    Date of Patent: September 6, 2011
    Assignee: Uni-Charm Corporation
    Inventor: Kazuo Ukegawa
  • Patent number: 7972459
    Abstract: In a method for continuously making pull-on disposable wearing, a web is fed in a machine direction. The web is formed with first fastener elements on both sides of a region defining a cut line extending in a cross direction. Second fastener elements on a fastener base sheet are engaged with the respective first fastener elements, and a region between these first fastener elements is cut away from the web. Then, the web is folded in two and a side edge of the web is bonded to the fastener base sheet. Thereafter, the web is successively cut along the cut lines to separate the web into segments each of which is a pull-on wearing article having front and rear waist regions adapted to be detachably connected with each other by the first and second fastener elements.
    Type: Grant
    Filed: August 24, 2005
    Date of Patent: July 5, 2011
    Assignee: Uni-Charm Corporation
    Inventor: Kazuo Ukegawa
  • Publication number: 20110118693
    Abstract: The present invention provides a method of making a wearing article improved so that mount members in folded state can be easily released from a temporarily fixing effect. The method of making a wearing article involves folding back each of mount members from the side of a top-sheet of a front waist region toward an inner side facing the wearer's skin so as to define first regions, second regions and third regions; bonding the first regions to the top-sheet in the front waist region by means of first adhesive layers; bonding the first regions to the second regions by means of second adhesive layers; forming first arrays of adhesive spots between the second regions and the third regions; hook elements are bonded to surfaces of the third regions on the side of the top-sheet in a rear waist region; bond loop elements to the top-sheet in the rear waist region; and engaging the loop elements with the hook elements. The first arrays of adhesive spots are formed in area overlapping the hook elements.
    Type: Application
    Filed: June 30, 2009
    Publication date: May 19, 2011
    Applicant: Uni-Charm Corporation
    Inventors: Akiyoshi Konishi, Kazuo Ukegawa, Ryota Myojo, Natsuko Aoyagi, Kayoko Tanaka, Yasuhiko Kenmochi
  • Publication number: 20100170615
    Abstract: In a process for making disposable wearing article, a composite web running in a machine direction is formed with a pair of rectilinear slits extending in a cross direction and a notch intersecting these paired slits. A region surrounded by these slits and notch is cut away from the composite web to form a gap. In a step before the composite web is formed with the gap, second fastener means supported on a fastener base sheet strip are engaged with the associated pair of first fastener means previously bonded to the composite web opposed to each other about the gap as viewed in the machine direction and thereby the fastener base sheet strip is attached to the composite web so as to stride over the gap.
    Type: Application
    Filed: March 16, 2010
    Publication date: July 8, 2010
    Applicant: UNI-CHARM CORPORATION
    Inventor: Kazuo UKEGAWA
  • Patent number: 7708857
    Abstract: In a process for making disposable wearing article, a composite web running in a machine direction is formed with a pair of rectilinear slits extending in a cross direction and a notch intersecting these paired slits. A region surrounded by these slits and notch is cut away from the composite web to form a gap. In a step before the composite web is formed with the gap, second fastener means supported on a fastener base sheet strip are engaged with the associated pair of first fastener means previously bonded to the composite web opposed to each other about the gap as viewed in the machine direction and thereby the fastener base sheet strip is attached to the composite web so as to stride over the gap.
    Type: Grant
    Filed: November 18, 2005
    Date of Patent: May 4, 2010
    Assignee: Uni-Charm Corporation
    Inventor: Kazuo Ukegawa
  • Publication number: 20060108054
    Abstract: In a process for making disposable wearing article, a composite web running in a machine direction is formed with a pair of rectilinear slits extending in a cross direction and a notch intersecting these paired slits. A region surrounded by these slits and notch is cut away from the composite web to form a gap. In a step before the composite web is formed with the gap, second fastener means supported on a fastener base sheet strip are engaged with the associated pair of first fastener means previously bonded to the composite web opposed to each other about the gap as viewed in the machine direction and thereby the fastener base sheet strip is attached to the composite web so as to stride over the gap.
    Type: Application
    Filed: November 18, 2005
    Publication date: May 25, 2006
    Applicant: UNI-CHARM CORPORATION
    Inventor: Kazuo Ukegawa
  • Publication number: 20060042746
    Abstract: There is disclosed a method for continuously making pull-on disposable wearing articles. A web is fed in a machine direction. The web is formed with first fastener means on both sides of a region defining a cut line extending in a cross direction. After second fastener means on a fastener base sheet have respectively been engaged with the respective first fastener means, a region extending between these first fastener means is cut away from the web. Then the web is folded in two so that its first and second side edges may fall into line and a region of the web located aside toward the second side edge is bonded to the fastener base sheet. Thereafter the web is successively cut along the cut lines extending in the cross direction to form segments of the web.
    Type: Application
    Filed: August 24, 2005
    Publication date: March 2, 2006
    Applicant: UNI-CHARM CORPORATION
    Inventor: Kazuo Ukegawa
  • 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: 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