Patents by Inventor Takeshi KUROHARA

Takeshi KUROHARA 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: 11517484
    Abstract: The present invention is intended to provide an absorbent article that is excellent in anti-odor effect at the time of disposal. A pants-type disposable diaper includes an anti-odor tape that has a first gas barrier layer coupled to the pants-type disposable diaper and a second gas barrier layer that is stuck in a separable manner to either front or back surface of the first gas barrier layer via an adhesive agent containing an anti-odor agent. The anti-odor tape takes an anti-odor measure by separating the second gas barrier layer from the first gas barrier layer to expose the adhesive agent to the outside at the time of disposal of the pants-type disposable diaper.
    Type: Grant
    Filed: August 19, 2015
    Date of Patent: December 6, 2022
    Assignee: DAIO PAPER CORPORATION
    Inventors: Takeshi Kurohara, Yosuke Mori, Takashi Hagi
  • Patent number: 10918538
    Abstract: A method of manufacturing an absorbent article includes a paper making step in which, after forming a wet paper sheet from a source material and adding a fragrance material to the wet paper sheet, a pulp raw fabric sheet is obtained by dehydrating and drying the wet paper sheet; and a processing step of an absorbent article in which the pulp raw fabric sheet is defibrated and an absorbent body is manufactured by fiber stacking this defibrated fluff pulp.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: February 16, 2021
    Assignee: DAIO PAPER CORPORATION
    Inventor: Takeshi Kurohara
  • Patent number: 10751228
    Abstract: A stretchable structure of an absorbent article includes two sheet layers that extend in a stretchable direction and an orthogonal direction orthogonal to the stretchable direction; and elongated resilient and elastic members that are disposed between the sheet layers at predetermined intervals in the orthogonal direction and extend in the stretchable direction, wherein, the two ends in the stretchable direction of each of the resilient and elastic members comprise fixed ends fixed to the two sheet layers, and the section between the fixed ends comprises a free section unfixed to the two sheet layers, at least one sheet bonding section is disposed in at least one inter-free region defined between the free sections adjacent to each other in the orthogonal direction, the two sheet layers being bonded in the at least one inter-free region, and the two sheet layers in a contracted state conform with each other in a wave pattern in response to contraction of the resilient and elastic members.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: August 25, 2020
    Assignee: DAIO PAPER CORPORATION
    Inventors: Takeshi Kurohara, Masayo Obata, Sadanao Manabe, Akifumi Hayashi, Yosuke Mori
  • Publication number: 20180042788
    Abstract: A stretchable structure of an absorbent article includes two sheet layers that extend in a stretchable direction and an orthogonal direction orthogonal to the stretchable direction; and elongated resilient and elastic members that are disposed between the sheet layers at predetermined intervals in the orthogonal direction and extend in the stretchable direction, wherein, the two ends in the stretchable direction of each of the resilient and elastic members comprise fixed ends fixed to the two sheet layers, and the section between the fixed ends comprises a free section unfixed to the two sheet layers, at least one sheet bonding section is disposed in at least one inter-free region defined between the free sections adjacent to each other in the orthogonal direction, the two sheet layers being bonded in the at least one inter-free region, and the two sheet layers in a contracted state conform with each other in a wave pattern in response to contraction of the resilient and elastic members.
    Type: Application
    Filed: March 25, 2016
    Publication date: February 15, 2018
    Applicant: Daio Paper Corporation
    Inventors: Takeshi KUROHARA, Masayo OBATA, Sadanao MANABE, Akifumi HAYASHI, Yosuke MORI
  • Publication number: 20180014986
    Abstract: A contact efficiency between a fragrance material and body fluid is increased, fragrance is effectively generated by a small amount of the fragrance material, and a manufacturing step is simplified. Including an absorbent body (6) in which a defibrated fluff pulp (5), defibrated from a pulp raw fabric sheet (4), is fiber stacked, wherein a fragrance material (3) is added to the pulp raw fabric sheet (4) before being defibrated. A manufacturing method includes a paper making step of obtaining, after forming a wet paper sheet (2) from a source material (2) and adding a fragrance material (3) to the wet paper sheet (2), a pulp raw fabric sheet (4) by dehydrating and drying the wet paper sheet (2), and a processing step of an absorbent article of defibrating the pulp raw fabric sheet (4) and manufacturing an absorbent body (6) by fiber stacking this defibrated fluff pulp (5).
    Type: Application
    Filed: March 4, 2016
    Publication date: January 18, 2018
    Inventor: Takeshi KUROHARA
  • Publication number: 20170281430
    Abstract: The present invention is intended to provide an absorbent article that is excellent in anti-odor effect at the time of disposal. A pants-type disposable diaper includes an anti-odor tape that has a first gas barrier layer coupled to the pants-type disposable diaper and a second gas barrier layer that is stuck in a separable manner to either front or back surface of the first gas barrier layer via an adhesive agent containing an anti-odor agent. The anti-odor tape takes an anti-odor measure by separating the second gas barrier layer from the first gas barrier layer to expose the adhesive agent to the outside at the time of disposal of the pants-type disposable diaper.
    Type: Application
    Filed: August 19, 2015
    Publication date: October 5, 2017
    Inventors: Takeshi KUROHARA, Yosuke MORI, Takashi HAGI