Patents by Inventor Masataka Chouji

Masataka Chouji 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: 6290379
    Abstract: An aiming mechanism of a headlamp for an automobile, comprises: a lamp housing which is mounted on a vehicle body; a headlamp unit supported tiltably about a tilting fulcrum provided in front of the lamp housing; a hollow cylindrical nut member supported rotatably about an axis by a bearing provided in the lamp housing; and an aiming screw which is threadedly engaged with the nut member, extends forward, is prevented from rotating with respect to the headlamp unit, and is adapted to advance and retract in an axial direction to tilt the headlamp unit connected to a forward end thereof as the nut member is rotated, wherein a crown-shaped gear capable of meshing with teeth of a screwdriver disposed in a direction perpendicular to the aiming screw is formed integrally on the nut member, and at least two screwdriver guides for guiding the screwdriver are provided in vicinities of the bearing.
    Type: Grant
    Filed: June 11, 1998
    Date of Patent: September 18, 2001
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Masahito Iwasaki, Masataka Chouji
  • Patent number: 6161953
    Abstract: A vehicle lamp in which a sealing groove is formed circumferentially in the inclined front opening of a lamp body for containing a light source 14 and the sealing leg of a front lens engages integrally with the sealing groove via a sealing material is such that the base of the sealing groove in cross section is sloped with respect to a plane perpendicularly intersecting the direction of inserting the sealing leg and that on the inclined base, there are provided cross projections and extending in the direction of intersecting the sealing groove in order to prevent the sealing leg from sliding in the width direction of the sealing groove. When the sealing leg is forced in, it is brought into contact with the cross projections and prevented from being inserted to a degree exceeding a predetermined quantity.
    Type: Grant
    Filed: October 2, 1998
    Date of Patent: December 19, 2000
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Masataka Chouji, Takashi Sone
  • Patent number: 6050706
    Abstract: A vehicle lamp includes an amber light bulb covered with a cup-shaped colorless transparent cap, thus emitting an amber light beam. A colorless, transparent, plain lens is employed. Furthermore, the inner surface of the cylindrical portion of the transparent cap is formed into a plurality of side steps, and the inner surface of the front end portion of the transparent cap is shaped into a Fresnel lens, and the outer surface of the front end portion is shaped into a plurality of fisheye lenses, which makes it more difficult to see the amber light bulb. Therefore, the vehicle lamp appears deep and glittering.
    Type: Grant
    Filed: October 16, 1997
    Date of Patent: April 18, 2000
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Yasushi Ohtuka, Masataka Chouji, Naoki Kakiuchi