Patents by Inventor Naotarou Nakata

Naotarou Nakata 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).

  • Method of manufacturing a light source unit
    Patent number: 5645739
    Abstract: A plurality of light emitting units are prepared each of which is provided with a laser diode having a laser diode chip which emits one beam and a collimator lens for converting a beam emitted from the laser diode into a parallel beam. The light emitting units are fixed to a bar body so as to be in a row. A plurality of such bar bodies are prepared, and by fixing the bar bodies to a substrate, the light source units are arranged in a matrix form. The positions of the light emitting units are adjusted and fixed after the light emitting units are fitted in the bar bodies so that a plurality of beams emitted from the laser diodes are in parallel with one another at predetermined intervals.
    Type: Grant
    Filed: January 26, 1996
    Date of Patent: July 8, 1997
    Assignee: Rohm Co., Ltd.
    Inventors: Naotarou Nakata, Naofumi Aoki, Kazutoshi Yamazaki
  • Light source unit and its manufacturing method, adjusting method and adjusting apparatus
    Patent number: 5617441
    Abstract: A plurality of light emitting units are prepared each of which is provided with a laser diode having a laser diode chip which emits one beam and a collimator lens for converting a beam emitted from the laser diode into a parallel beam. The light emitting units are fixed to a bar body so as to be in a row. A plurality of such bar bodies are prepared, and by fixing the bar bodies to a substrate, the light source units are arranged in a matrix form. The positions of the light emitting units are adjusted and fixed after the light emitting units are fitted in the bar bodies so that a plurality of beams emitted from the laser diodes are in parallel with one another at predetermined intervals.
    Type: Grant
    Filed: October 21, 1992
    Date of Patent: April 1, 1997
    Assignee: Rohm Co. Ltd.
    Inventors: Naotarou Nakata, Naofumi Aoki, Kazutoshi Yamazaki