Patents by Inventor Tomotsugu Matsui

Tomotsugu Matsui 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: 20210093489
    Abstract: An absorption rate in an absorbent article including a cell absorber is improved. The above-mentioned problem is solved by an absorbent article including an absorber having a plurality of cells surrounded by bonded portions of an upper sheet and a lower sheet, the upper sheet and the lower sheet not bonded at the cells, and a particulate material including super absorbent polymer particles contained in the cells, in which at least one of the upper sheet and the lower sheet in the cells is formed into concaves depressed to outsides of the cells in a spread state, a middle sheet made of a nonwoven fabric is interposed between the upper sheet and the lower sheet, and the middle sheet is compressed in a thickness direction at the bonded portions and expands to insides of the concaves at portions located inside the cells.
    Type: Application
    Filed: January 18, 2018
    Publication date: April 1, 2021
    Applicant: Daio Paper Corporation
    Inventors: Sadanao Manabe, Ryoichi Ochi, Tomotsugu Matsui, Hong Yan Liu, Xiao Xia Wang, Xiang Qian Liu
  • Patent number: 10603228
    Abstract: The present invention is intended to provide the advantages of forming the leg gathers with the liquid impervious film that allow reduction of the used amount of the non-woven fabric while suppressing the deterioration of the texture, and others.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: March 31, 2020
    Assignee: Daio Paper Corporation
    Inventors: Sadanao Manabe, Tomotsugu Matsui, Akinori Fukae, Kosuke Murai
  • Patent number: 10492958
    Abstract: The present invention provides an underpants-type disposable diaper that has pleats formed in an outer body, which vertically and straightly extend, is excellent in appearance and air permeability, and is excellent in drawing preventing performance of a resilient and elastic member.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: December 3, 2019
    Assignee: DAIO PAPER CORPORATION
    Inventors: Tomotsugu Matsui, Yosuke Mori, Shunji Seno, Kento Fujima
  • Publication number: 20170231836
    Abstract: The present invention is intended to provide the advantages of forming the leg gathers with the liquid impervious film that allow reduction of the used amount of the non-woven fabric while suppressing the deterioration of the texture, and others.
    Type: Application
    Filed: October 16, 2015
    Publication date: August 17, 2017
    Applicant: DAIO PAPER CORPORATION
    Inventors: Sadanao MANABE, Tomotsugu MATSUI, Akinori FUKAE, Kosuke MURAI
  • Publication number: 20170014277
    Abstract: The present invention provides an underpants-type disposable diaper that has pleats formed in an outer body, which vertically and straightly extend, is excellent in appearance and air permeability, and is excellent in drawing preventing performance of a resilient and elastic member.
    Type: Application
    Filed: March 20, 2015
    Publication date: January 19, 2017
    Inventors: Tomotsugu MATSUI, Yosuke MORI, Shunji SENO, Kento FUJIMA
  • Patent number: 8859844
    Abstract: To provide a body fluid absorbent article having a face sheet 1, a body fluid permeable member 20 including an assembly of fibers in tows, a body fluid retainable absorbent element AB in this order, and a face-side second sheet 10, which is interposed between the above face sheet 1 and the above body fluid permeable member 20 with such a positional relation that the above face-side second sheet 10 is at least partly superposed on the above body fluid permeable member 20; and embossing is carried out integrally on the above face sheet 1 and the above face-side second sheet 10 while embossing is not carried out on the above body fluid permeable member 20.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: October 14, 2014
    Assignee: Diao Paper Corporation
    Inventors: Tomonari Takeuchi, Satoko Konawa, Keisuke Ebitsuka, Tomotsugu Matsui
  • Patent number: 8466334
    Abstract: [Subject] To obtain a body fluid absorbent article with the perfect protection against the body fluid leakage. [Means for Solving Problem] In the body fluid absorbent, the body fluid retainable absorbent member 53A is disposed under the face sheet 51. Then, the body fluid permeable absorbent member 52, which include the assembly of fibers in tows, is disposed between the face sheet 51 and the body fluid retainable absorbent member 53A.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: June 18, 2013
    Assignee: Daio Paper Corporation
    Inventors: Tomonari Takeuchi, Satoko Konawa, Tomotsugu Matsui
  • Patent number: 8088966
    Abstract: An absorbing article which comprises a liquid permeable top sheet, an absorbing material, a moisture permeable waterproof sheet and a back sheet impermeable to a liquid, being integrated in the above order, wherein an aqueous component indicator comprising a hydrophilic resin coating layer and a notification mark provided on the inner surface of said hydrophilic resin coating layer is provided on the inner surface of the above moisture permeable waterproof sheet.
    Type: Grant
    Filed: March 11, 2005
    Date of Patent: January 3, 2012
    Assignee: Daio Paper Corporation
    Inventor: Tomotsugu Matsui
  • Patent number: 7884259
    Abstract: An absorbent article including a fiber aggregate formed by opening the tow, a super absorbent polymer particle, and a sheet covering these components. The super absorbent polymer particle are bonded to the sheet with an adhesive that is applied in a continuous plane to the entire surface or the substantially entire surface at least at the portion to be provided with the super absorbent polymer particle in this sheet.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: February 8, 2011
    Assignee: Daio Paper Corporation
    Inventors: Hiroyuki Hanao, Taira Kubo, Yoshiharu Miyashita, Tomotsugu Matsui, Akinori Fukae, Toshikazu Maeda, Hiroyuki Yano, Takeshi Furudoi
  • Patent number: 7855314
    Abstract: An Absorber and an absorbent article including a fiber aggregate wherein a tow composed of fibers is used as the fiber aggregate, and the compression resilience RC is 45 to 60%. Also, the fiber aggregate has a density of 0.0075 g/cm3 or less, weight of 0.0075 g/cm2 or less and a mass of 1 to 15 grams.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: December 21, 2010
    Assignee: Daio Paper Corporation
    Inventors: Hiroyuki Hanao, Taira Kubo, Yoshiharu Miyashita, Tomotsugu Matsui, Akinori Fukae, Toshikazu Maeda, Hiroyuki Yano, Takeshi Furudoi
  • Patent number: 7717150
    Abstract: A shuffling hand feeling and unwanted non-uniform absorption characteristics in the case of using a tow (fiber bundle) are prevented. An absorbent body includes a fiber aggregate 21 formed by opening the tow, a super absorbent polymer 54, and a sheet covering these components; and includes the super absorbent polymer 54 bonded to the sheet 58 with an adhesive that is applied in a continuous plane to the entire surface or the substantially entire surface of at least the portion to be provided with the super absorbent polymer 54 in this sheet 58.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: May 18, 2010
    Assignee: Daio Paper Corporation
    Inventors: Sadanao Manabe, Hiroyuki Hanao, Takeshi Furudoi, Akinori Fukae, Toshikazu Maeda, Hiroyuki Yano, Taira Kubo, Yoshiharu Miyashita, Tomotsugu Matsui
  • Publication number: 20090247977
    Abstract: [Subject] To provide a body fluid absorbent article including a second sheet, which fulfills its own function, while the “sticking”, which would have been caused by the conventional second sheet, is prevented on the account of embossing. [Means for Solving Problem] A body fluid absorbent article having a face sheet 1, a body fluid permeable member 20 including an assembly of fibers in tows, a body fluid retainable absorbent element AB in this order, and a face-side second sheet 10, which is interposed between the above face sheet 1 and the above body fluid permeable member 20 with such a positional relation that the above face-side second sheet 10 is at least partly superposed on the above body fluid permeable member 20; and embossing is carried out integrally on the above face sheet 1 and the above face-side second sheet 10 while embossing is not carried out on the above body fluid permeable member 20.
    Type: Application
    Filed: June 30, 2005
    Publication date: October 1, 2009
    Inventors: Tomonari Takeuchi, Satoko Konawa, Keisuke Ebitsuka, Tomotsugu Matsui
  • Patent number: 7491864
    Abstract: An absorbent article for body fluids aimed at utilizing an entire absorbent member efficiently and having a thinner form, a larger absorption capacity and longer wearability as a whole is provided. The absorbent member 25 has a contraction material 27 which contracts itself on contacting urine passing through a liquid-permeable surface layer provided on the side facing to the body skin and an absorbent material for body fluids 26 which is practically united with the contraction material 27 is arranged on the upper side of a leak proof layer provided on the side farther from the body skin.
    Type: Grant
    Filed: February 1, 2002
    Date of Patent: February 17, 2009
    Assignee: DAIO Paper Corporation
    Inventors: Kazunori Nishizawa, Tomotsugu Matsui, Tomohiro Otani, Yuka Kurita
  • Publication number: 20090004435
    Abstract: [Problem to be Solved] To provide an absorber with improved resilience from a packing state without increasing weight, thickness or costs. [Solution] Absorber 50 comprising fiber aggregate 21 wherein a tow composed of fibers is used as the fiber aggregate 21, and the compression resilience RC is 45 to 60%.
    Type: Application
    Filed: June 28, 2005
    Publication date: January 1, 2009
    Applicant: Daio Paper Corporation
    Inventors: Hiroyuki Hanao, Taira Kubo, Yoshiharu Miyashita, Tomotsugu Matsui, Akinori Fukae, Toshikazu Maeda, Hiroyuki Yano, Takeshi Furudoi
  • Publication number: 20080312627
    Abstract: [Subject] To obtain a body fluid absorbent article with the perfect protection against the body fluid leakage. [Means for Solving Problem] In the body fluid absorbent, the body fluid retainable absorbent member 53A is disposed under the face sheet 51. Then, the body fluid permeable absorbent member 52, which include the assembly of fibers in tows, is disposed between the face sheet 51 and the body fluid retainable absorbent member 53A.
    Type: Application
    Filed: June 30, 2005
    Publication date: December 18, 2008
    Inventors: Tomonari Takeuchi, Satoko Konawa, Tomotsugu Matsui
  • Publication number: 20080262459
    Abstract: [Problem to be Solved] To prevent shingly hand feeling and unintentional bias of absorption characteristics in the case of using tow (fiber bundle). [SOLUTION] An absorption element having a super absorbent polymer 54, comprising a fiber aggregate formed by opening tow 21, a super absorbent polymer 54 and a wrapping sheet 58 for wrapping them, wherein the whole face or almost whole face of part provided at least with the super absorbent polymer 54 in the sheet 58 is applied with an adhesive in a continuous plane, which is bonded to the sheet 58 with the adhesive.
    Type: Application
    Filed: June 29, 2005
    Publication date: October 23, 2008
    Inventors: Tomoka Kamoto, Taira Kubo, Tomotsugu Matsui, Hiroyuki Hanao
  • Publication number: 20080044616
    Abstract: [Problem to be Solved] A shuffling hand feeling and unwanted non-uniform absorption characteristics in the case of using a tow (fiber bundle) are prevented. [Solution] An absorbent body includes a fiber aggregate 21 formed by opening the tow, a super absorbent polymer particle 54, and a sheet covering these components; and includes the super absorbent polymer particle 54 bonded to the sheet 58 with an adhesive that is applied in a continuous plane to the entire surface or the substantially entire surface at least at the portion to be provided with the super absorbent polymer particle 54 in this sheet 58.
    Type: Application
    Filed: June 28, 2005
    Publication date: February 21, 2008
    Inventors: Hiroyuki Hanao, Taira Kubo, Yoshiharu Miyashita, Tomotsugu Matsui, Akinori Fukae, Toshikazu Maeda, Hiroyuki Yano, Takeshi Furudoi
  • Publication number: 20080038504
    Abstract: [Problem to be Solved] A shuffling hand feeling and unwanted non-uniform absorption characteristics in the case of using a tow (fiber bundle) are prevented. [Solution] An absorbent body includes a fiber aggregate 21 formed by opening the tow, a super absorbent polymer 54, and a sheet covering these components; and includes the super absorbent polymer 54 bonded to the sheet 58 with an adhesive that is applied in a continuous plane to the entire surface or the substantially entire surface of at least the portion to be provided with the super absorbent polymer 54 in this sheet 58.
    Type: Application
    Filed: June 28, 2005
    Publication date: February 14, 2008
    Inventors: Sadanao Manabe, Hiroyuki Hanao, Takeshi Furodoi, Akinori Fukae, Toshikazu Maeda, Hiroyuki Yano, Taira Kubo, Yoshiharu Miyashita, Tomotsugu Matsui
  • Publication number: 20070197986
    Abstract: In an absorbent article structured by integrally forming at least a liquid permeable top sheet, an absorbent, a water vapor permeable waterproof sheet, and a liquid impermeable back sheet in this order, a water content indicator is provided on an inner surface of the water vapor permeable waterproof sheet, the water content indicator being constituted by a hydrophilic resin coating layer and an information mark provided on an inner surface of the hydrophilic resin coating layer.
    Type: Application
    Filed: March 11, 2005
    Publication date: August 23, 2007
    Inventor: Tomotsugu Matsui
  • Publication number: 20040127874
    Abstract: The present invention relates to an absorbent article for body fluids aimed at utilizing an entire absorbent member efficiently and having a thinner form, a larger absorption capacity and longer wearability as a whole. The absorbent member 25 comprising a contraction material 27 which contracts itself on contacting urine passing through a liquid-permeable surface layer provided on the side facing to the body skin and an absorbent material for body fluids 26 which is practically united with the contraction material 27 is arranged on the upper side of a leak proof layer provided on the side farther from the body skin.
    Type: Application
    Filed: January 30, 2004
    Publication date: July 1, 2004
    Inventors: Kazunori Nishizawa, Tomotsugu Matsui, Tomohiro Ontani, Yuka Kurita