Patents Assigned to YAMAUCHI CORP.
  • Hot press cushioning material and production method thereof
    Patent number: 11845844
    Abstract: A hot press cushioning material includes: a fiber material comprised of a multiplicity of randomly oriented fibers (1); rubber (2) present in voids between the fibers (1) of the fiber material; and independent pores (3) dispersedly present in the rubber (2).
    Type: Grant
    Filed: May 28, 2018
    Date of Patent: December 19, 2023
    Assignee: YAMAUCHI CORP.
    Inventors: Akira Yoshida, Takamitsu Ozeki
  • Hot press cushioning material
    Patent number: 11787143
    Abstract: A hot press cushioning material includes a base material layer that is in the form of a plate and that contains fibers; and an end face seal covering an outer end face of the base material layer. The end face seal includes a heat resistant elastic body having penetrated the outer end face of the base material layer and a heat resistant resin attached to an outer surface of the heat resistant elastic body.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: October 17, 2023
    Assignee: YAMAUCHI CORP.
    Inventors: Takamitsu Ozeki, Akira Yoshida, Shuhei Kouno
  • Hot press cushioning material
    Patent number: 11628637
    Abstract: A hot press cushioning material includes a cushioning material body in the form of a plate; and surface materials provided on the front and back sides of the cushioning material body. The surface material includes a core layer composed of a heat resistant fiber material for a nonwoven structure, and a front-side resin layer covering the entire front side of the core layer. The core layer has an air permeability of 5 cm3·cm?2·s?1 or less and a bulk density of 0.8 g/cm3 or more.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: April 18, 2023
    Assignee: YAMAUCHI CORP.
    Inventors: Akira Yoshida, Shuhei Kouno
  • Vulcanized anti-vibration rubber
    Patent number: 9963815
    Abstract: An anti-vibration rubber of the present invention is an anti-vibration rubber for washing machines. In temperature variance measurement of dynamic viscoelasticity at a frequency of 10 Hz, the anti-vibration rubber has a maximum loss factor at a temperature of 0° C. to 40° C., both inclusive, and has a loss factor of 0.5 or more in the entire temperature range of 0° C. to 40° C., both inclusive, at the frequency of 10 Hz.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: May 8, 2018
    Assignee: YAMAUCHI CORP.
    Inventors: Toshio Saito, Hiroyuki Maruko