Patents by Inventor Ryozo Mikawa

Ryozo Mikawa 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).

  • Two piece construction wheel for an automobile
    Patent number: 4982998
    Abstract: A two piece construction wheel for an automobile is formed of a rim integrally formed and a center disk separately formed. Connecting sections are installed at the position where the rim and the center disk abut against each other. A connecting section at the side of the rim is formed in the shape of a female screw and without penetrating through the connecting section and is engaged with other connecting section by screwing bolts. And also it is possible to connect with bolts and nuts or rivets and the like by piercing through the connection sections without installing the shape of a female screw.
    Type: Grant
    Filed: April 21, 1989
    Date of Patent: January 8, 1991
    Assignee: Fortran Co., Ltd.
    Inventor: Ryozo Mikawa
  • Spoiler
    Patent number: D319613
    Type: Grant
    Filed: April 27, 1989
    Date of Patent: September 3, 1991
    Assignee: Leonard Co., Ltd.
    Inventor: Ryozo Mikawa
  • Wheel
    Patent number: D336886
    Type: Grant
    Filed: April 27, 1989
    Date of Patent: June 29, 1993
    Assignee: Leonard Co., Ltd.
    Inventor: Ryozo Mikawa