Patents by Inventor Isao Hanai

Isao Hanai 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).

  • Publication number: 20040079932
    Abstract: A shock-absorbing guardrail that is easy to install and remove that prevents a support post from collapsing by absorbing the shock caused by a car collision thus reducing repair time. The shock-absorbing device is attached to the guard fence between the structure or support post. A mid-filler attachment may have an ohm-shaped cross-section or vertically opened pipe-shaped cross-section. The guard fence and mid-filler attachment may be attached to the support post or structure with removable connectors for faster installation and removal. The shock-absorbing device is designed to absorb collision energy by irreversible deformation of the mid-filler attachment.
    Type: Application
    Filed: October 21, 2003
    Publication date: April 29, 2004
    Inventors: Isao Hanai, Mikio Hanai, Makoto Hanai
  • Publication number: 20040051321
    Abstract: A unique shock-absorbing bumper device for use in absorbing collision energy in all bumper assembly systems, and more specifically automobiles. A simple efficient structure is designed for ease of installation and removal after impact, and to provide high performance in absorbing colliding energy, which prevents a driver and passengers from severe injury caused by a car colliding with an object. This system may be used in car doors for absorbing side impacts.
    Type: Application
    Filed: September 17, 2003
    Publication date: March 18, 2004
    Inventors: Isao Hanai, Mikio Hanai, Makoto Hanai