Patents by Inventor Keiji Torigoshi

Keiji Torigoshi 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: 9011406
    Abstract: A disposable diaper which can be used both as a tape-fastening type and an underpants type by joining the both side portions of the front body part and back body part respectively to thereby form joined portions on both sides along with a waist opening and a pair of right and left leg openings and in this diaper, perforated lines are formed on the both side portions of the front body part so as to extend from an edge of the waist opening to edges of the leg openings and at least one pair of fastening tapes having hook members on inner surfaces thereof and straddle the perforated lines.
    Type: Grant
    Filed: July 31, 2007
    Date of Patent: April 21, 2015
    Assignee: Daio Paper Corporation
    Inventors: Keiji Torigoshi, Kosuke Murai, Yosuke Mori
  • Patent number: 8382735
    Abstract: A disposable diaper having a neat appearance. The diaper 101 includes: a liquid-permeable top sheet 111 which covers a use surface side; a leakage preventing sheet 112 which covers a non-use surface side; an absorbent body 113 interposed between the top sheet and the leakage preventing sheet; and an external sheet 120 disposed on an outer surface side of the leakage preventing sheet, wherein three-dimensional gathers BS are formed along leg surrounding portions, and leg cut-out portions of the external sheet which form leg openings are located in a portion of the minimum width of a crotch portion, at a position nearer to a central side than places outward by 5 mm from rising start points of the three-dimensional gathers BS.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: February 26, 2013
    Assignee: Daio Paper Corporation
    Inventors: Keiji Torigoshi, Yosuke Mori
  • Patent number: 8002761
    Abstract: To improve the fastening property of a fastening type disposable diaper. The problem is overcome by use of a disposable diaper having an engagement section that is constituted so that the separation strength off a fastening tape is constituted so as to decrease stepwise or continuously from a center portion in a width direction of a product toward edges on both sides or an engagement section made of a loop member sheet constituted so that loop elements of the loop base sheet may be exposed from holes 21a, 21a of a perforated cover sheet 21.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: August 23, 2011
    Assignee: Daio Paper Corporation
    Inventors: Takeshi Utsunomiya, Keiji Torigoshi
  • Patent number: 7777094
    Abstract: A disposable diaper having: an elastic portion where a plurality of elastic members is provided along a width direction with an interval of not more than 7.0 mm in a longitudinal direction, and a non-elastic portion wherein the non-elastic portion is in a center of at least one of a front side and a back side and the elastic portion is provided in a region including right-and-left side portions except the non-elastic portion, and a difference between a maximum product width obtained when the body peripheral region is extended to a limit of extension in a product width direction and a contracted product width obtained when the body peripheral region is in a non-extended contraction state is from 100 to 250 mm in a state where the front side and the back side are overlapped.
    Type: Grant
    Filed: March 14, 2002
    Date of Patent: August 17, 2010
    Assignees: Daio Paper Corporation, Daio Paper Converting Co., Ltd.
    Inventors: Yosuke Mori, Keiji Torigoshi, Hideki Saiga
  • Publication number: 20100191212
    Abstract: A disposable diaper having a neat appearance. The diaper 101 includes: a liquid-permeable top sheet 111 which covers a use surface side; a leakage preventing sheet 112 which covers a non-use surface side; an absorbent body 113 interposed between the top sheet and the leakage preventing sheet; and an external sheet 120 disposed on an outer surface side of the leakage preventing sheet, wherein three-dimensional gathers BS are formed along leg surrounding portions, and leg cut-out portions of the external sheet which form leg openings are located in a portion of the minimum width of a crotch portion, at a position nearer to a central side than places outward by 5 mm from rising start points of the three-dimensional gathers BS.
    Type: Application
    Filed: April 13, 2010
    Publication date: July 29, 2010
    Applicant: DAIO PAPER CORPORATION
    Inventors: Keiji TORIGOSHI, Yosuke MORI
  • Patent number: 7727214
    Abstract: A disposable diaper having a neat appearance. The diaper 101 includes: a liquid-permeable top sheet 111 which covers a use surface side; a leakage preventing sheet 112 which covers a non-use surface side; an absorbent body 113 interposed between the top sheet and the leakage preventing sheet; and an external sheet 120 disposed on an outer surface side of the leakage preventing sheet, wherein three-dimensional gathers BS are formed along leg surrounding portions, and leg cut-out portions of the external sheet which form leg openings are located in a portion of the minimum width of a crotch portion, at a position nearer to a central side than places outward by 5 mm from rising start points of the three-dimensional gathers BS.
    Type: Grant
    Filed: November 28, 2001
    Date of Patent: June 1, 2010
    Assignee: Daio Paper Corporation
    Inventors: Keiji Torigoshi, Yosuke Mori
  • Publication number: 20090198207
    Abstract: [Problem]0 To provide a disposable diaper which can be used both as a tape-fastening type and an underpants type with an excellent fit. [Means for Solving Problem] By joining the both side portions of the front body part 12F and back body part 12B respectively to thereby form joined portions 12A on both sides along with a waist opening WO and a pair of right and left leg openings LO and in this diaper, perforated lines 100 are formed on the both side portions of the front body part 12F so as to extend from an edge of the waist opening WO to edges of the leg openings LO and at least one pair of fastening tapes 90 having hook members 92 on inner surfaces thereof and straddle the perforated lines.
    Type: Application
    Filed: July 31, 2007
    Publication date: August 6, 2009
    Applicant: DAIO PAPER CORPORATION
    Inventors: Keiji Torigoshi, Kosuke Murai, Yosuke Mori
  • Publication number: 20090069776
    Abstract: [Problem] To improve the fastening property of a fastening type disposable diaper. [Means for Solving Problems] The problem is overcome by use of a disposable diaper having an engagement section that is constituted so that the separation strength off a fastening tape is constituted so as to decrease stepwise or continuously from a center portion in a width direction of a product toward edges on both sides or an engagement section made of a loop member sheet constituted so that loop elements of the loop base sheet may be exposed from holes 21a, 21a of a perforated cover sheet 21.
    Type: Application
    Filed: March 30, 2007
    Publication date: March 12, 2009
    Inventors: Takeshi Utsunomiya, Keiji Torigoshi
  • Patent number: 7329245
    Abstract: A disposable diaper having an absorbent, a waist opening and right and left leg openings which are formed when the diaper is in use, and many stretchable members which are provided along the peripheral direction of the diaper at least in a girth area having a lengthwise range extending from said waist opening's edge to said leg openings' start ends and which are spaced at intervals in the lengthwise direction of the diaper. In at least a front body, said stretchable members are provided discontinuously in part of or in the whole of a lengthwise range where said absorbent is located, in an area extending from a joint on one side to a joint on the other side of the diaper.
    Type: Grant
    Filed: July 19, 2001
    Date of Patent: February 12, 2008
    Assignees: Daio Paper Corporation, Daio Paper Converting Co., Ltd.
    Inventors: Keiji Torigoshi, Sadanao Manabe, Yosuke Mori
  • Publication number: 20050267427
    Abstract: An absorbent article which can be thin without decreasing absorption capability and strength. An absorbent body having a pulp fiber and a super absorbent polymer, in which a content of the super absorbent polymer is not less than 55% by weight, is provided. The absorbent body may be covered with a top sheet which is liquid permeable and uses a non-woven fabric.
    Type: Application
    Filed: August 7, 2003
    Publication date: December 1, 2005
    Applicant: DAIO PAPER CORPORATION
    Inventors: Hiroyuki Hanao, Koji Kondo, Keiji Torigoshi
  • Publication number: 20040133180
    Abstract: A disposable diaper in which a waist opening portion and right-and-left leg opening portions are formed in a use state having: an elastic portion where a plurality of elastic members is provided along a width direction with an interval of not more than 7.
    Type: Application
    Filed: January 29, 2004
    Publication date: July 8, 2004
    Applicants: DAIO PAPER CORPORATION, DAIO PAPER CONVERTING CO., Ltd.
    Inventors: Yosuke Mori, Keiji Torigoshi, Hideki Saiga
  • Publication number: 20040030317
    Abstract: A disposable diaper having a neat appearance. The diaper 101 includes: a liquid-permeable top sheet 111 which covers a use surface side; a leakage preventing sheet 112 which covers a non-use surface side; an absorbent body 113 interposed between the top sheet and the leakage preventing sheet; and an external sheet 120 disposed on an outer surface side of the leakage preventing sheet, wherein three-dimensional gathers BS are formed along leg surrounding portions, and leg cut-out portions of the external sheet which form leg openings are located in a portion of the minimum width of a crotch portion, at a position nearer to a central side than places outward by 5 mm from rising start points of the three-dimensional gathers BS.
    Type: Application
    Filed: May 28, 2003
    Publication date: February 12, 2004
    Applicant: DAIO PAPER CORPORATION
    Inventor: Keiji Torigoshi
  • Publication number: 20040015146
    Abstract: A disposable diaper having an absorbent, a waist opening and right and left leg openings which are formed when the diaper is in use, and many stretchable members which are provided along the peripheral direction of the diaper at least in a girth area having a lengthwise range extending from said waist opening's edge to said leg openings' start ends and which are spaced at intervals in the lengthwise direction of the diaper. In at least a front body, said stretchable members are provided discontinuously in part of or in the whole of a lengthwise range where said absorbent is located, in an area extending from a joint on one side to a joint on the other side of the diaper.
    Type: Application
    Filed: July 14, 2003
    Publication date: January 22, 2004
    Inventors: Keiji Torigoshi, Sadanao Manabe, Yosuke Mori