Patents by Inventor Tsutomu Miwa

Tsutomu Miwa 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).

  • Patent number: 5184832
    Abstract: The present invention provides an automobile which offers air resistance and lift which are lower than those for a conventional automobile, yet which is hardly changed in its external appearance. The reducing means includes over each front wheel 19 an air passage 4 formed as a hollow 1 made by recessing a body panel located above the wheel, the air passage 4 having an air inlet 2 at its front and an air outlet 3 at its rear. Air current flows smoothly through the hollow 1 located above the front wheel to the air outlet 3 which is on the same level at or located at a higher position than the air inlet 2, thereby reducing air resistance and lift to levels which are lower than those for the conventional automobile. In one aspect of the invention, the air passage 4 is covered by a bonnet 16, other outer shell portions, and a pivotally secured reverse lift plate 5 or a reverse lift member 12 is included.
    Type: Grant
    Filed: October 8, 1991
    Date of Patent: February 9, 1993
    Inventor: Tsutomu Miwa
  • Patent number: 5054844
    Abstract: The present invention provides an automobile which offers air resistance and lift which are lower than those for a conventional automobile, yet which is hardly changed in its external appearance. The reducing means includes over each front wheel 19 an air passage 4 formed as a hollow 1 made by recessing a body panel located above the wheel, the air passage 4 having an air inlet 2 at its front and an air outlet 3 at its rear. Air current flows smoothly through the hollow 1 located above the front wheel to the air outlet 3 which is on the same level at or located at a higher position than the air inlet 2, thereby reducing air resistance and lift to levels which are lower than those for the conventional automobile. In one aspect of the invention, the air passage 4 is covered by a bonnet 16, other outer shell portions, and a pivotally secured reverse lift plate 5 or a reverse lift member 12 is included.
    Type: Grant
    Filed: August 20, 1990
    Date of Patent: October 8, 1991
    Inventor: Tsutomu Miwa
  • Patent number: 4951994
    Abstract: An air-dam skirt is suspended from a car body (4) in a floating state by resilient members (3), and guide members (5) and regulating members (6) projecting vertically from the car body (4) or the air-dam skirt (1) into mutual sliding meshing contact with one another to move vertically in a predetermined orbit. Inverse lifting plates (15) or bottom inverse lifting plates (16) reliably lower the air-dam skirt (1) in front of the front wheels when it is necessary to prevent lifting. The base of each guide member (5) or regulating member (6) is fitted movably and is fixed by a shock absorbing member (17) so as to protect the air-dam skirt (1) against breakage.
    Type: Grant
    Filed: June 27, 1988
    Date of Patent: August 28, 1990
    Inventor: Tsutomu Miwa
  • Patent number: 4379582
    Abstract: The device of this invention comprises an air induction passage for directing air upwardly rearwardly and a planar anti-lift member. The device is mounted at the front bumper, near a headlamp, or at rear bumper, or air dam skirts or at the rear of the radiator grille without substantial alterations of the vehicle's general contour lines. An anti-lift thrust is generated by lowering the point at which the front airstream splits up into an upper stream which moves over the upper surface of the vehicle and a lower stream which moves below the bottom of the vehicle, whereby the vehicle's power of adherence to the ground at the front wheels is increased. The vehicle's adherence power at the rear wheels is also increased by directing the airstream flowing below the vehicle bottom surface upwardly rearwardly of the vehicle. The impact absorbing capability of the vehicle is increased by forming the air induction passage with a resilient material to make the air passage act as an impact absorbing member.
    Type: Grant
    Filed: October 7, 1980
    Date of Patent: April 12, 1983
    Inventor: Tsutomu Miwa