Patents by Inventor Hiroatsu Nagata

Hiroatsu Nagata 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).

  • Pressurized with a fluid having a specific gravity greater than air
    Patent number: 5083596
    Abstract: A vehicle tire in which pressurized air is charged into an air tight inside of a tire together with from 5% to 95% by volume of a fluid having a specific gravity greater than that of air based on 100% by volume of the pressurized air and from 1% to 20% by weight of one or more of fine metals of metal oxide particles, uniformly dispersed in the fluid, based on 100% by weight of the fluid, the metal ingredient of the particles being selected from the group consisting of Al, Si, Ca, Ti, Mn, Fe, Co, Ni, Cu, Zn, Pb, Ba, Mg, and Mo.Water is desirable as the fluid charged in the tire, and the highly water absorbing polymer swollen with water may be used instead of water. Running stability and the braking distance of a vehicle can be improved remarkably.
    Type: Grant
    Filed: November 17, 1989
    Date of Patent: January 28, 1992
    Inventors: Hiroshi Kato, Hiroatsu Nagata, Tsutomu Katsura, Hiroyuki Doe, Kiichiro Sarui