Patents by Inventor Hiroyuki Soga

Hiroyuki Soga 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: 7316675
    Abstract: A disposable pants-type wearing article includes an inner sheet, an outer sheet and an intermediate sheet having two or more plastic film strips sandwiched between the inner sheet and the outer sheet. The film strips are overlapped one another to define an overlapped region dimensioned to be 10 to 100 mm in a longitudinal direction of the wearing article and extend in a transverse direction to the vicinity of leg-surrounding elastic members.
    Type: Grant
    Filed: January 23, 2006
    Date of Patent: January 8, 2008
    Assignee: Uni-Charm Corporation
    Inventors: Hiroyuki Soga, Satoru Tange, Yuko Matsuda
  • Patent number: 7226438
    Abstract: A disposable wearing article includes a backsheet which is composed of inner and outer sheets and a light transmission in a region of the backsheet in which the inner and outer sheets are placed upon each other is in a range of 20 to 50%. First and second elastic members constituting leg elastic members are colored in substantially the same white or milky white as that of the inner and outer sheets and respective intermediate segments of these elastic members are sandwiched between a liquid-absorbent layer and the inner sheet. The inner and outer sheets conceal the respective intermediate segments of these elastic members so that the respective intermediate segments of the elastic members are not highly visible and the article is protected from any deterioration of its appearance.
    Type: Grant
    Filed: January 19, 2006
    Date of Patent: June 5, 2007
    Assignee: Uni-Charm Corporation
    Inventors: Hiroyuki Soga, Satoru Tange, Yuko Matsuda
  • Publication number: 20060167426
    Abstract: A disposable pants-type wearing article comprises an inner sheet, an outer sheet and an intermediate sheet consisting of two or more plastic film strips sandwiched between the inner sheet and the outer sheet. The film strips are overlapped one another to define an overlapped region dimensioned to be 10 to 100 mm in a longitudinal direction of the wearing article and extend in a transverse direction to the vicinity of leg-surrounding elastic members.
    Type: Application
    Filed: January 23, 2006
    Publication date: July 27, 2006
    Inventors: Hiroyuki Soga, Satoru Tange, Yuko Matsuda
  • Publication number: 20060161128
    Abstract: A disposable wearing article includes a backsheet which is composed of inner and outer sheets and a light transmission in a region of the backsheet in which the inner and outer sheets are placed upon each other is in a range of 20 to 50%. First and second elastic members constituting leg elastic members are colored in substantially the same white or milky white as that of the inner and outer sheets and respective intermediate segments of these elastic members are sandwiched between a liquid-absorbent layer and the inner sheet. The inner and outer sheets conceal the respective intermediate segments of these elastic members so that the respective intermediate segments of the elastic members are not highly visible and the article is protected from any deterioration of its appearance.
    Type: Application
    Filed: January 19, 2006
    Publication date: July 20, 2006
    Inventors: Hiroyuki Soga, Satoru Tange, Yuko Matsuda
  • Patent number: 6890327
    Abstract: A disposable diaper including a topsheet, a backsheet and a core disposed therebetween. A pair of outer side barrier cuffs and a pair of inner side barrier cuffs lying more inwardly of the outer side barrier cuffs are formed adjacent transversely opposite side edges and extend longitudinally thereof. Each of the outer side barrier cuffs has its longitudinally opposite ends covered with a pair of end barrier flaps that are positioned adjacent longitudinally opposite ends of the diaper so as to form front and rear pockets, respectively. The inner side barrier cuffs are shorter than the outer side barrier cuffs.
    Type: Grant
    Filed: October 30, 1998
    Date of Patent: May 10, 2005
    Assignee: Uni-Charm Corporation
    Inventors: Seiji Suzuki, Hiroyuki Soga
  • Patent number: 6666851
    Abstract: A disposable garment that includes a crotch region. The crotch region has a pair of folding guides that extend transversely across a zone defined between peripheral edge portions of respective leg-openings and intersect each other in a transversely middle zone of the crotch region. The crotch region is tucked about the folding guides inwardly of the garment so that the crotch region may be divided by the folding guides into substantially triangular first and second zones defined between the peripheral edge portions of the respective leg-openings and the folding guides, respectively, a third zone extending from the folding guides into a front region, and a fourth zone extending from the folding guides into a rear region with the first and second zones being disposed between the third and fourth zones.
    Type: Grant
    Filed: July 9, 2001
    Date of Patent: December 23, 2003
    Assignee: Uni-Charm Corporation
    Inventors: Toshifumi Otsubo, Yoshinori Kumasaka, Hiroyuki Soga
  • Patent number: 6544242
    Abstract: A disposable body fluids absorbent article is provided on an outer surface of a backsheet thereof with a tape fastener for fastening the used article in a rolled up condition for disposal. The tape fastener includes a fixed end portion secured to the outer surface of the backsheet, a free end portion longitudinally opposite the fixed end portion, an elastically stretchable portion extending longitudinally between these opposite end portions, and an adhesive portion extending longitudinally between the free end portion and the elastically stretchable portion and releasably bonded to the outer surface of the backsheet.
    Type: Grant
    Filed: June 26, 1997
    Date of Patent: April 8, 2003
    Assignee: Uni-Charm Corporation
    Inventors: Tsutomu Kido, Hiroyuki Soga, Toshio Inoue, Koji Kawamura
  • Patent number: 6371949
    Abstract: Disposal securing arrangements provided on a backsheet of body fluids absorbent garment for disposal thereof has a first strip section bonded to the backsheet, a second strip section bonded to the backsheet, a third strip section having a proximal end portion connected to at least one of the first and second strip sections, and a free end portion. The third strip section includes a stretchable extent defined between these opposite end portions. The third strip section is separably held against the first strip section by a securing region provided thereon. The first and second section strip sections respectively have holding forces sufficient to remain held against the backsheet as the third strip section is peeled off from the first strip section and stretched. The holding force generated in the first strip section is equal to or higher than the holding force generated in the second strip section.
    Type: Grant
    Filed: January 28, 1998
    Date of Patent: April 16, 2002
    Assignee: Uni-Charm Corporation
    Inventors: Hiroyuki Soga, Toshio Inoue, Hirotomo Mukai, Yoshikazu Takigawa
  • Publication number: 20020022814
    Abstract: A disposable garment includes a crotch region. The crotch region has a pair of folding guides transversely extending across a zone defined between peripheral edge portions of respective leg-openings and intersecting to each other in a transversely middle zone of the crotch region and the crotch region is tucked about the folding guides inwardly of the garment so that the crotch region may be divided by the folding guides into substantially triangular first and second zones defined between the peripheral edge portions of the respective leg-openings and the folding guides, respectively, a third zone extending from the folding guides into a front trunk region, and a fourth zone extending from the folding guides into a rear trunk region with the first and second zones being disposed between the third and fourth zones.
    Type: Application
    Filed: July 9, 2001
    Publication date: February 21, 2002
    Inventors: Toshifumi Otsubo, Yoshinori Kumasaka, Hiroyuki Soga
  • Patent number: 6323387
    Abstract: A disposable body fluids absorbent article including an absorbent core contained discrete particles, the discrete particles consisting of first polymer particles which have an initial water absorption rate and second polymer particles which have an initial water absorption rate lower than that of the first polymer particles, the first polymer particles being distributed exclusively in a zone defined by a lower ½ of a thickness of the core.
    Type: Grant
    Filed: April 8, 1999
    Date of Patent: November 27, 2001
    Assignee: Uni-Charm Corporation
    Inventors: Hiroyuki Soga, Toshio Inoue, Seiji Suzuki, Takaaki Shimada
  • Publication number: 20010018580
    Abstract: A disposable diaper including a topsheet, a backsheet and a core disposed therebetween, adjacent transversely opposite side edges and longitudinally of the diaper, there being formed a pair of outer side barrier cuff and a pair of inner side barrier cuffs lying more inwardly of the outer side barrier cuffs. Each of the outer side barrier cuffs has its longitudinally opposite ends covered with a pair of end barrier flaps placed adjacent longitudinally opposite ends of the diaper so as to form a front pocket and a rear pocket, respectively. A longitudinal dimension of the inner side barrier cuff is shorter than that of the outer side barrier cuff.
    Type: Application
    Filed: October 30, 1998
    Publication date: August 30, 2001
    Inventors: SEIJI SUZUKI, HIROYUKI SOGA
  • Patent number: 6264644
    Abstract: A disposal tape securing arrangement used to secure a disposable body fluid absorbent article such as a disposable diaper in a rolled up state for disposal includes an adhesive tape and a release tape. The adhesive tape is fixed at one end portion to the outer surface of the article and has an adhesive zone on the opposite end portion (i.e., free end portion). The release tape extends in alignment with the adhesive tape and has a release portion fixed to the outer surface of the article and a fold-back portion being contiguous to the release portion and folded back adjacent the end of the adhesive tape. The adhesive zone provided on the adhesive tape is releasably bonded to the release portion and the fold-back portion of the release tape is fixed to the inner surface of the free end portion of the adhesive tape.
    Type: Grant
    Filed: August 27, 1997
    Date of Patent: July 24, 2001
    Assignee: Uni-Charm Corporation
    Inventors: Takamitsu Igaue, Hiroyuki Soga
  • Patent number: 6063066
    Abstract: A disposable body fluids absorbent garment is provided with disposal securing means including a tape fastener used to secure the garment in its rolled up state for disposal. The tape fastener comprises an extendible intermediate tape section and a pair of inelastic and adhesive distal end tape sections extending from the intermediate tape section in a direction of its extension. A region of the tape fastener extending between the pair of distal end tape sections is partially bonded to an outer surface of a backsheet of the garment so that this region is not inseparable from the backsheet when the tape fastener is pulled in an extension direction thereof.
    Type: Grant
    Filed: July 7, 1998
    Date of Patent: May 16, 2000
    Assignee: Uni-Charm Corporation
    Inventors: Yasushi Inoue, Hiroyuki Soga
  • Patent number: 5941865
    Abstract: A pull-on disposable absorbent garment such as a diaper has a front waist region, a rear waist region and a crotch region defined by a topsheet, a backsheet and an absorbent core disposed therebetween. The front and rear waist regions are provided with a plurality of elastic members arranged most densely in proximity of longitudinal opposite ends of the absorbent core.
    Type: Grant
    Filed: May 5, 1997
    Date of Patent: August 24, 1999
    Assignee: Uni-Charm Corporation
    Inventors: Toshifumi Otsubo, Hiroyuki Soga
  • Patent number: 5916206
    Abstract: In a diaper as one embodiment of a disposable absorbent undergarment according to the invention, the diaper is provided around a front region thereof with a plurality of elastic elements The number of the elastic elements arranged in an area defined by respective vertical widths of 10 mm above and below a front edge of an absorbent core disposed between top- and backsheets is greater than that of the elastic element in the remaining area of the front region. An elongation stress of the elastic elements in the area mentioned firstly is lower than that of the elastic elements in the area mentioned lastly.
    Type: Grant
    Filed: July 15, 1996
    Date of Patent: June 29, 1999
    Assignee: Uni-Charm Corporation
    Inventors: Toshifumi Otsubo, Hiroyuki Soga
  • Patent number: 5800419
    Abstract: Superabsorbent polymer particles are used in a liquid-absorbent core of a disposable body fluid absorbent garment. The polymer particles include first polymer particles having a relatively high water-absorption speed and second polymer particles having a water-absorption speed longer than that of the first polymer particles by 10 seconds or more. The second polymer particles are integrally bonded to the first polymer particles.
    Type: Grant
    Filed: November 27, 1996
    Date of Patent: September 1, 1998
    Assignee: Uni-Charm Corporation
    Inventors: Hiroyuki Soga, Noriyuki Kimura
  • Patent number: 5626573
    Abstract: A pants type disposable diaper having elastic ribbons around a waist-portion and a pair of leg-portions of said diaper, respectively, is provided on a transversely central zone of a crotch section on a front or rear side of said diaper, respectively, with a vertically extending fastening tape having an adhesive section provisionally bonded to the outer surface of a backsheet of said diaper and an upper end or a lower end permanently bonded to the outer surface of said backsheet.
    Type: Grant
    Filed: September 14, 1995
    Date of Patent: May 6, 1997
    Assignee: Uni-Charm Corporation
    Inventors: Takamitsu Igaue, Tohru Sasaki, Hiroyuki Soga
  • Patent number: 5439459
    Abstract: An arrangement of a disposable diaper in which there are provided elastic members extending not only along opposite side edges of an opening formed in a skin-contacting topsheet but also further extending beyond longitudinally opposite ends of the opening substantially to longitudinally opposite ends of the skin-contacting topsheet so that the opening may sufficiently rise up together with the skin-contacting topsheet to assure reliable introduction of excretions through this opening into a pocket space defined between the skin-contacting topsheet and a separately provided topsheet underlying the skin-contacting topsheet.
    Type: Grant
    Filed: April 19, 1993
    Date of Patent: August 8, 1995
    Assignee: Uni-Charm Corporation
    Inventors: Hiroyuki Tanji, Ichiro Wada, Yoshio Ono, Hiroyuki Soga
  • Patent number: 5429632
    Abstract: A disposable diaper so improved that an uppermost sheet 14 is formed at its central zone with an opening 16, first and second elastic members 17, 18 are attached to the sheet 14 along halves of the opening's periphery, respectively, with the longitudinally opposite ends of these elastic members intersecting each other at the longitudinally opposite ends of the opening 16, respectively, and the uppermost sheet 14 is torn off from these intersections.
    Type: Grant
    Filed: March 15, 1993
    Date of Patent: July 4, 1995
    Assignee: Uni-Charm Corporation
    Inventors: Hiroyuki Tanji, Ichiro Wada, Yoshio Ono, Hiroyuki Soga
  • Patent number: 5364381
    Abstract: Here is disclosed air-permeable and liquid-impermeable backsheet for use in body fluid absorbent articles.Polyolefin plastic sheet containing inorganic filler particles is stretched and then thermo-embossed to obtain the backsheet 1. At least one surface of this backsheet 1 is composed of a rough surface zone 5 and a smooth surface zone 6 so that these two kinds of zones define together a desired surface pattern over the backsheet. The rough surface zone 5 has fine pores 7 for air-permeability and the smooth surface zone 6 facilitates an absorbent core of the body fluid absorbent article to be seen through this smooth surface zone 6.
    Type: Grant
    Filed: January 22, 1993
    Date of Patent: November 15, 1994
    Assignee: Uni-Charm Corporation
    Inventors: Hiroyuki Soga, Michiyo Matsushita