Patents by Inventor KAZUTAKA NIIGATA

KAZUTAKA NIIGATA 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).

  • Reflecting element, light deflecting device, image projection device, optical writing device, object recognition device, mobile object, and head-mounted display
    Patent number: 11892660
    Abstract: A reflecting element includes a first reflecting film to reflect light and a second reflecting film configured to increase a reflectivity of the first reflecting film. The second reflecting film includes a layer of high-refractive-index material and a layer of low-refractive-index material with a refractive index lower than the layer of high-refractive-index material. The layer of low-refractive-index material is a top layer of the second reflecting film.
    Type: Grant
    Filed: March 1, 2021
    Date of Patent: February 6, 2024
    Assignee: RICOH COMPANY, LTD.
    Inventor: Kazutaka Niigata
  • REFLECTING ELEMENT, LIGHT DEFLECTING DEVICE, IMAGE PROJECTION DEVICE, OPTICAL WRITING DEVICE, OBJECT RECOGNITION DEVICE, MOBILE OBJECT, AND HEAD-MOUNTED DISPLAY
    Publication number: 20210294004
    Abstract: A reflecting element includes a first reflecting film to reflect light and a second reflecting film configured to increase a reflectivity of the first reflecting film. The second reflecting film includes a layer of high-refractive-index material and a layer of low-refractive-index material with a refractive index lower than the layer of high-refractive-index material. The layer of low-refractive-index material is a top layer of the second reflecting film.
    Type: Application
    Filed: March 1, 2021
    Publication date: September 23, 2021
    Applicant: Ricoh Company, Ltd.
    Inventor: Kazutaka NIIGATA
  • OPTICAL DEFLECTION ELEMENT, METHOD FOR MANUFACTURING OPTICAL DEFLECTION ELEMENT, AND SYSTEM INCLUDING OPTICAL DEFLECTION ELEMENT
    Publication number: 20200301049
    Abstract: An optical deflection element includes: a reflective surface; and a movable part configured to rotate the reflective surface so as to deflect light incident on the reflective surface. The movable part includes: a metal film; a high reflective layer formed on an upper surface of the metal film; and a protective film continuously covering an upper surface and a side surface of the high reflective layer and a side surface of the metal film.
    Type: Application
    Filed: February 25, 2020
    Publication date: September 24, 2020
    Applicant: Ricoh Company, Ltd.
    Inventor: KAZUTAKA NIIGATA