Patents by Inventor Yoshihisa TAKAOKA

Yoshihisa TAKAOKA 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: 11725317
    Abstract: A three-dimensional net-like structure is provided that has a soft cushioning property and less variations of hardness and is less expensive. The three-dimensional net-like structure is made from a thermoplastic resin including a mixture of a polypropylene copolymer (a) and a polypropylene copolymer (b) and has a spring structure formed by bonding continuous filaments partly in random in loops. The polypropylene copolymer (a) has a flexural modulus that is different from a flexural modulus of the polypropylene copolymer (b).
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: August 15, 2023
    Assignee: C-ENG CO., LTD.
    Inventor: Yoshihisa Takaoka
  • Publication number: 20210054549
    Abstract: A three-dimensional net-like structure is provided that has a soft cushioning property and less variations of hardness and is less expensive. The three-dimensional net-like structure is made from a thermoplastic resin including a mixture of a polypropylene copolymer (a) and a polypropylene copolymer (b) and has a spring structure formed by bonding continuous filaments partly in random in loops. The polypropylene copolymer (a) has a flexural modulus that is different from a flexural modulus of the polypropylene copolymer (b).
    Type: Application
    Filed: October 25, 2019
    Publication date: February 25, 2021
    Inventor: Yoshihisa TAKAOKA
  • Publication number: 20200187669
    Abstract: With regard to a care bed provided with a three-dimensional net-like structure made of a thermoplastic resin, an object is to smoothly bend the three-dimensional net-like structure in multiple stages in response to a complicated motion of a bed main body or a user's specific motion. A three-dimensional net-like structure 101 includes a first three-dimensional sparse/dense structure 1 provided as an alternately layered configuration of structural units 1a1 to 1a9 that are sparse in an extrusion direction Y and structural units 1b1 to 1b8 that are dense in the extrusion direction Y. In this first three-dimensional sparse/dense structure 1, a bulk density ?1 of the sparse structural units 1a1 to 1a9 is 0.01 to 0.08 g/cm3 and a bulk density ?2 of the dense structural units 1b1 to 1b8 is 0.03 to 0.10 g/cm3. A ratio ?2/?1 of the bulk density of the dense structural units 1b1 to 1b8 to the bulk density of the sparse structural units 1a1 to 1a9 is 1.01 to 5.
    Type: Application
    Filed: September 26, 2018
    Publication date: June 18, 2020
    Inventor: Yoshihisa TAKAOKA