Patents by Inventor Hirokazu ONITSUKA

Hirokazu ONITSUKA 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).

  • CONVEYANCE SEAT
    Publication number: 20230173959
    Abstract: A conveyance seat accommodable in a recess of a floor includes: a seat cushion; a front leg portion which supports a front lower portion of the seat cushion and of which one end is rotatably fixed at the front lower portion of the seat cushion and the other end is detachably fixed at a position in front of the recess; a rear leg portion which supports a rear lower portion of the seat cushion and of which one end is rotatably fixed at the rear lower portion of the seat cushion and the other end is rotatably fixed to the floor inside the recess; and an arm portion of which one end is rotatably fixed to the rear leg portion and the other end is fixable to the floor at a position behind the other end of the rear leg portion.
    Type: Application
    Filed: March 16, 2021
    Publication date: June 8, 2023
    Inventors: Takako MIYOSHI, Takayuki KOBORI, Akio SEYA, Hiroki SHIBAYAMA, Kazuyoshi IIZUKA, Ai FURUTA, Kazuaki MIMA, Yuichiro HOSHI, Tomohisa CHIBA, Kensuke MORI, Hirokazu ONITSUKA