Patents by Inventor Ayumu YUKAWA

Ayumu YUKAWA 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).

  • Float assembly
    Patent number: 11958569
    Abstract: An object of the present invention is to provide a float assembly that can prevent the floats from flipping. The present invention provides a float assembly including a plurality of floats connected together comprising: a filled float having a hollow portion, wherein the hollow portion has a part filled with a filler, and the filled float is arranged at a position facing an assembly periphery surrounding the float assembly.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: April 16, 2024
    Assignee: KYORAKU CO., LTD.
    Inventors: Tsutomu Sakaguchi, Hirofumi Nagai, Yasunobu Ueda, Takaya Niimi, Ayumu Yukawa
  • FLOAT ASSEMBLY
    Publication number: 20220024542
    Abstract: An object of the present invention is to provide a float assembly that can prevent the floats from flipping. The present invention provides a float assembly including a plurality of floats connected together comprising: a filled float having a hollow portion, wherein the hollow portion has a part filled with a filler, and the filled float is arranged at a position facing an assembly periphery surrounding the float assembly.
    Type: Application
    Filed: November 22, 2019
    Publication date: January 27, 2022
    Applicant: KYORAKU CO., LTD.
    Inventors: Tsutomu SAKAGUCHI, Hirofumi NAGAI, Yasunobu UEDA, Takaya NIIMI, Ayumu YUKAWA