Patents by Inventor Nao KITAMICHI

Nao KITAMICHI 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).

  • Image display device, wire grid polarizing plate, method of manufacturing plate, method of observing wire grid polarizing plate, and method of estimating polarization axis direction of wire grid polarizing plate
    Patent number: 11960079
    Abstract: To provide an image display device for enabling a polarization axis direction of a reflection type polarizing plate to be identified with simplicity and accuracy, and enabling an adjustment in the polarization reflection axis direction to be made with high accuracy, a wire grid polarizing plate for enabling the polarization axis direction to be examined simply, and the like, a head-up display device (1) in the present invention is an image display device provided with an image display (14) that outputs image light which is polarized light, a reflection type polarizing plate (15) having an reflecting surface (28) that reflects the image light, and a projection plate (11) onto which the image light reflected by the reflection type polarizing plate is projected, and is characterized in that the reflection type polarizing plate allows a bright line (B) as an indicator indicative of the polarization axis direction of the reflecting surface to be observed.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: April 16, 2024
    Assignee: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Masaru Sugiyama, Naoki Inoue, Nao Kitamichi
  • IMAGE DISPLAY DEVICE, WIRE GRID POLARIZING PLATE, METHOD OF MANUFACTURING PLATE, METHOD OF OBSERVING WIRE GRID POLARIZING PLATE, AND METHOD OF ESTIMATING POLARIZATION AXIS DIRECTION OF WIRE GRID POLARIZING PLATE
    Publication number: 20210181504
    Abstract: To provide an image display device for enabling a polarization axis direction of a reflection type polarizing plate to be identified with simplicity and accuracy, and enabling an adjustment in the polarization reflection axis direction to be made with high accuracy, a wire grid polarizing plate for enabling the polarization axis direction to be examined simply, and the like, a head-up display device (1) in the present invention is an image display device provided with an image display (14) that outputs image light which is polarized light, a reflection type polarizing plate (15) having an reflecting surface (28) that reflects the image light, and a projection plate (11) onto which the image light reflected by the reflection type polarizing plate is projected, and is characterized in that the reflection type polarizing plate allows a bright line (B) as an indicator indicative of the polarization axis direction of the reflecting surface to be observed.
    Type: Application
    Filed: October 24, 2018
    Publication date: June 17, 2021
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Masaru SUGIYAMA, Naoki INOUE, Nao KITAMICHI