Patents by Inventor Hiroyuki Tanji

Hiroyuki Tanji 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: 5304159
    Abstract: To prevent a part of excretions having missed an opening formed in a skin-contacting topsheet 14 of a disposable diaper from diffusively flowing over the top surface of this topsheet 14, the opening 16 is provided along the laterally opposite sides thereof with a pair of first flaps 17 opposed to and spaced from each other by a relatively small distance and a pair of second flaps 18 similarly opposed to and spaced from each other by a relatively large distance so that the part of excretions having missed the opening 16 defined by the laterally opposite side edges of the first flaps 17 may be reliably dammed by the second flaps 18 and thereby the diffusive flowing of excretion may be avoided.
    Type: Grant
    Filed: April 7, 1993
    Date of Patent: April 19, 1994
    Assignee: Uni-Charm Corporation
    Inventors: Hiroyuki Tanji, Ichiro Wada, Yoshio Ono, Hiroyuki Soga
  • Patent number: 5163932
    Abstract: A disposable wearing article of pants type having a front body and a rear body comprising respectively at least a liquid-permeable topsheet and a liquid-impermeable backsheet, and elastic members along a waist-hole and respective leg-holes. The front and rear bodies are attached together along their laterally opposite side edges. The longitudinally opposite ends of the respective elastic members are located on the opposite side edges of the front and rear bodies, and the opposite side edges of the front and rear bodies are intermittently attached together so as to avoid the elastic members.
    Type: Grant
    Filed: October 23, 1991
    Date of Patent: November 17, 1992
    Assignee: Uni-Charm Corporation
    Inventors: Hironori Nomura, Takamitsu Igaue, Hiroyuki Tanji, Hirofumi Ohnishi, Tohru Sasaki
  • Patent number: 5154714
    Abstract: Here is an absorbent panel for body fluid absorptive garments such as a disposable diaper formed from a mixture of at least fibrous or granular liquid-absorptive material and thermoplastic fibers being compressed to a uniform thickness wherein said thermoplastic fibers are welded to each other with a welding density of their cross points to be higher in a crotch zone than in the remaining zone and to provide a tensile strength correspondingly higher in said crotch zone than in said remaining zone.
    Type: Grant
    Filed: January 29, 1991
    Date of Patent: October 13, 1992
    Assignee: Uni-Charm Corporation
    Inventors: Hironori Nomura, Takamitsu Igaue, Junji Shinohara, Tsutomu Shiroto, Hiroyuki Tanji
  • Patent number: 5114420
    Abstract: A disposable diaper includes a semi-rigid absorbent body and high flexible side flaps disposed on laterally opposite the thereof. Each of said side flaps includes a first flap disposed outside the absorbent body and a second flap diverged from the first side flap. Each of the second flaps has the associated one of an elastic band incorporated therein and turned up under an elastic effect of the associated elastic band at least along a line of the divergence.
    Type: Grant
    Filed: February 20, 1990
    Date of Patent: May 19, 1992
    Assignee: Uni-Charm Corporation
    Inventors: Takamitsu Igaue, Hideaki Kitaoka, Hiroyuki Tanji
  • Patent number: 5092861
    Abstract: Here are disclosed disposable garments such as a diaper having adhesive areas on top- and/or backsheet(s) along leg-openings. Each of the adhesive areas is defined by a plurality of spiral adhesive traces. The stretchable elastic means are bonded to the top- and/or backsheet(s) along the adhesive areas, respectively.
    Type: Grant
    Filed: December 24, 1990
    Date of Patent: March 3, 1992
    Assignee: Uni-Charm Corporation
    Inventors: Hironori Nomura, Takamitsu Igaue, Hiroki Yamamoto, Hiroyuki Tanji
  • Patent number: 4904251
    Abstract: A disposable diaper includes a semi-rigid absorbent body and high flexible side flaps disposed on laterally opposite side thereof. Each of said side flaps includes a first flap disposed outside said absorbent body and a second flap diverged from said first side flap. Each of said second flaps has the associated one of an elastic band incorporated therein and turned up under an elastic effect of said associated elastic band at least along a line of the divergence.
    Type: Grant
    Filed: March 31, 1988
    Date of Patent: February 27, 1990
    Assignee: Uni-Charm Corporation
    Inventors: Takamitsu Igaue, Hideaki Kitaoka, Hiroyuki Tanji
  • Patent number: 4822435
    Abstract: Here is disclosed a method for making wearable articles such as disposable diapers, disposable diaper covers or the like, more particularly, a method for formation of side flaps provided with elastic members for a desired fitness around the wearer's legs. This method comprises steps of forming a main body of the article having first side flaps extending outwards from opposite sides thereof, forming second side flaps separately of the main body, providing the second side flaps along the respective one side edges with elastic members, and joining the second side flaps along the respective other side edges and longitudinally opposite ends thereof to the top surfaces of the respective first side flaps so that the respective one side edges of the second side flaps along which the respective elastic members are disposed are directed outwards.
    Type: Grant
    Filed: October 26, 1987
    Date of Patent: April 18, 1989
    Assignee: Uni-Charm Corporation
    Inventors: Takamitsu Igaue, Hiroyuki Tanji