Patents by Inventor Takuya Hishikawa

Takuya Hishikawa 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: 9925095
    Abstract: An absorbent article has an absorbing core and a liquid-permeable second sheet disposed on the absorbing core. The absorbing core includes a liquid-holding material and a liquid-permeable core-wrapping sheet. The core-wrapping sheet covers the liquid-holding material, but a portion of a top-side surface of the liquid-holding material is exposed. The second sheet contacts the liquid-holding material at the exposed portion. The second sheet is placed in direct contact with the cellulose fibers of the liquid-holding material, and liquid permeates from the second sheet into the liquid-holding material. Also, deformation of the liquid-holding material is prevented by the hydrophilic core-wrapping sheet covering the liquid-holding material.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: March 27, 2018
    Assignees: LIVEDO USA, INC., LIVEDO CORPORATION
    Inventor: Takuya Hishikawa
  • Patent number: 9889052
    Abstract: An absorbent article has a lower absorbing core and an upper absorbing core. Each absorbing core includes a liquid-holding material and a liquid-permeable core-wrapping sheet. The liquid-holding material is covered by the liquid-permeable core-wrapping sheet, but it also has an exposed portion not covered by the liquid-permeable core-wrapping sheet. The exposed portions of the lower absorbing core and the upper absorbing core face each other and the liquid-holding materials are connected with each other at the exposed portion. Because the liquid-holding material of the upper absorbing core is in direct contact with the liquid-holding material of the lower absorbing core, the area provides a path through which liquid flows smoothly from the upper absorbing core to the lower absorbing core. Also, because the upper and lower liquid-holding materials are covered by the core-wrapping sheets, deformation of the liquid-holding materials is prevented.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: February 13, 2018
    Assignees: LIVEDO USA, INC., LIVEDO CORPORATION
    Inventor: Takuya Hishikawa
  • Publication number: 20150196435
    Abstract: An absorbent article has an absorbing core and a liquid-permeable second sheet disposed on the absorbing core. The absorbing core includes a liquid-holding material and a liquid-permeable core-wrapping sheet. The core-wrapping sheet covers the liquid-holding material, but a portion of a top-side surface of the liquid-holding material is exposed. The second sheet contacts the liquid-holding material at the exposed portion. The second sheet is placed in direct contact with the cellulose fibers of the liquid-holding material, and liquid permeates from the second sheet into the liquid-holding material. Also, deformation of the liquid-holding material is prevented by the hydrophilic core-wrapping sheet covering the liquid-holding material.
    Type: Application
    Filed: January 15, 2015
    Publication date: July 16, 2015
    Applicants: LIVEDO USA, INC., LIVEDO CORPORATION
    Inventor: Takuya Hishikawa
  • Publication number: 20150196436
    Abstract: An absorbent article has a lower absorbing core and an upper absorbing core. Each absorbing core includes a liquid-holding material and a liquid-permeable core-wrapping sheet. The liquid-holding material is covered by the liquid-permeable core-wrapping sheet, but it also has an exposed portion not covered by the liquid-permeable core-wrapping sheet. The exposed portions of the lower absorbing core and the upper absorbing core face each other and the liquid-holding materials are connected with each other at the exposed portion. Because the liquid-holding material of the upper absorbing core is in direct contact with the liquid-holding material of the lower absorbing core, the area provides a path through which liquid flows smoothly from the upper absorbing core to the lower absorbing core. Also, because the upper and lower liquid-holding materials are covered by the core-wrapping sheets, deformation of the liquid-holding materials is prevented.
    Type: Application
    Filed: January 15, 2015
    Publication date: July 16, 2015
    Applicants: LIVEDO USA, INC., LIVEDO CORPORATION
    Inventor: Takuya Hishikawa