Patents by Inventor Mituteru Yoshinaga

Mituteru Yoshinaga 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).

  • Lens in vehicular lamp, method of shaping the lens and an apparatus for shaping the lens
    Patent number: 6607296
    Abstract: A lens 1, for use in a vehicular lamp, including a front section 4 directed generally to the front, a curved section 5 extending from the front section 4 and changing direction to face laterally and seal legs projecting generally to the back from the peripheral edges. The seal leg in the curved section has a portion that extends inwardly to form an undercut in the direction in which the lens is removed from a lens shaping mold. The curved section 5 is shaped from resin in at least two colors and the seal legs which at least form an undercut in the curved section are shaped from a resin having one of said at least two colors. Thus the lens can be shaped in a mold of a simplified structure.
    Type: Grant
    Filed: March 8, 2000
    Date of Patent: August 19, 2003
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Mituteru Yoshinaga, Makoto Sano
  • Lens in vehicular lamp, method of shaping the lens and an apparatus for shaping the lens
    Publication number: 20020167816
    Abstract: A lens 1, for use in a vehicular lamp, including a front section 4 directed generally to the front, a curved section 5 extending from the front section 4 and changing direction to face laterally and seal legs projecting generally to the back from the peripheral edges. The seal leg in the curved section has a portion that extends inwardly to form an undercut in the direction in which the lens is removed from a lens shaping mold. The curved section 5 is shaped from resin in at least two colors and the seal legs which at least form an undercut in the curved section are shaped from a resin having one of said at least two colors. Thus the lens can be shaped in a mold of a simplified structure.
    Type: Application
    Filed: March 8, 2000
    Publication date: November 14, 2002
    Inventors: Mituteru Yoshinaga, Makoto Sano