Patents by Inventor Maiko NAGAWATARI

Maiko NAGAWATARI 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).

  • Optical scanning device and method for producing optical scanning device
    Patent number: 10866408
    Abstract: An optical scanning device includes: a mirror that has an optical reflection surface; a mirror support unit configured to support the mirror; a pair of drive beams arranged on both sides of the mirror support unit and connected such that the mirror support unit is swingable; a drive source provided on the drive beams and configured to swing the mirror support unit, the drive source including a stack structure of a plurality of piezoelectric thin films; and a piezoelectric sensor formed on a connection beam connected to the drive source or the drive beams, a number of piezoelectric thin films included in the piezoelectric sensor being less than a number of the piezoelectric thin films included in the drive source.
    Type: Grant
    Filed: January 15, 2019
    Date of Patent: December 15, 2020
    Assignee: MITSUMI ELECTRIC CO., LTD.
    Inventors: Hisamichi Sekine, Maiko Nagawatari, Seiya Sato
  • OPTICAL SCANNING DEVICE AND METHOD FOR PRODUCING OPTICAL SCANNING DEVICE
    Publication number: 20190235232
    Abstract: An optical scanning device includes: a mirror that has an optical reflection surface; a mirror support unit configured to support the mirror; a pair of drive beams arranged on both sides of the mirror support unit and connected such that the mirror support unit is swingable; a drive source provided on the drive beams and configured to swing the mirror support unit, the drive source including a stack structure of a plurality of piezoelectric thin films; and a piezoelectric sensor formed on a connection beam connected to the drive source or the drive beams, a number of piezoelectric thin films included in the piezoelectric sensor being less than a number of the piezoelectric thin films included in the drive source.
    Type: Application
    Filed: January 15, 2019
    Publication date: August 1, 2019
    Applicant: MITSUMI ELECTRIC CO., LTD.
    Inventors: Hisamichi SEKINE, Maiko NAGAWATARI, Seiya SATO