Patents by Inventor Tetsushi SHIMOMURA

Tetsushi SHIMOMURA 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).

  • Terahertz wave optical element and method for producing terahertz wave optical element
    Patent number: 12135444
    Abstract: A terahertz wave lens includes a substrate having a surface provided with an uneven structure that changes a phase of the terahertz wave. The uneven structure includes a plurality of holes that are periodically arranged. The uneven structure includes a plurality of regions where the plurality of holes are arranged. A height of the hole in a thickness direction of the substrate and a width of the pillar differ for each of the regions. Outer end portions of the uneven structure in the thickness direction are located on the same plane.
    Type: Grant
    Filed: June 14, 2023
    Date of Patent: November 5, 2024
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Shohei Hayashi, Tetsushi Shimomura, Hiroyasu Fujiwara
  • Terahertz wave lens and method for producing terahertz wave lens
    Patent number: 12032184
    Abstract: A terahertz wave lens concentrates or collimates a terahertz wave. The terahertz wave lens includes a substrate having a surface provided with an uneven structure that changes a phase of the terahertz wave. The uneven structure includes a plurality of pillars that are periodically arranged. The uneven structure includes a plurality of regions where the plurality of pillars are arranged. A height of the pillar in a thickness direction of the substrate and a width of the pillar differ for each of the regions. A distance (period) between centers of the pillars adjacent to each other is constant. Outer end portions of the uneven structure in the thickness direction are located on the same plane.
    Type: Grant
    Filed: December 14, 2020
    Date of Patent: July 9, 2024
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Shohei Hayashi, Tetsushi Shimomura, Hiroyasu Fujiwara
  • TERAHERTZ WAVE OPTICAL ELEMENT AND METHOD FOR PRODUCING TERAHERTZ WAVE OPTICAL ELEMENT
    Publication number: 20230324591
    Abstract: A terahertz wave lens includes a substrate having a surface provided with an uneven structure that changes a phase of the terahertz wave. The uneven structure includes a plurality of holes that are periodically arranged. The uneven structure includes a plurality of regions where the plurality of holes are arranged. A height of the hole in a thickness direction of the substrate and a width of the pillar differ for each of the regions. Outer end portions of the uneven structure in the thickness direction are located on the same plane.
    Type: Application
    Filed: June 14, 2023
    Publication date: October 12, 2023
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Shohei HAYASHI, Tetsushi SHIMOMURA, Hiroyasu FUJIWARA
  • Terahertz wave optical element and method for producing terahertz wave optical element
    Patent number: 11774651
    Abstract: A terahertz wave lens includes a substrate having a surface provided with an uneven structure that changes a phase of the terahertz wave. The uneven structure includes a plurality of holes that are periodically arranged. The uneven structure includes a plurality of regions where the plurality of holes are arranged. A height of the hole in a thickness direction of the substrate and a width of the pillar differ for each of the regions. Outer end portions of the uneven structure in the thickness direction are located on the same plane.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: October 3, 2023
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Shohei Hayashi, Tetsushi Shimomura, Hiroyasu Fujiwara
  • TERAHERTZ WAVE OPTICAL ELEMENT AND METHOD FOR PRODUCING TERAHERTZ WAVE OPTICAL ELEMENT
    Publication number: 20210191231
    Abstract: A terahertz wave lens includes a substrate having a surface provided with an uneven structure that changes a phase of the terahertz wave. The uneven structure includes a plurality of holes that are periodically arranged. The uneven structure includes a plurality of regions where the plurality of holes are arranged. A height of the hole in a thickness direction of the substrate and a width of the pillar differ for each of the regions. Outer end portions of the uneven structure in the thickness direction are located on the same plane.
    Type: Application
    Filed: December 9, 2020
    Publication date: June 24, 2021
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Shohei HAYASHI, Tetsushi SHIMOMURA, Hiroyasu FUJIWARA
  • TERAHERTZ WAVE LENS AND METHOD FOR PRODUCING TERAHERTZ WAVE LENS
    Publication number: 20210194144
    Abstract: A terahertz wave lens concentrates or collimates a terahertz wave. The terahertz wave lens includes a substrate having a surface provided with an uneven structure that changes a phase of the terahertz wave. The uneven structure includes a plurality of pillars that are periodically arranged. The uneven structure includes a plurality of regions where the plurality of pillars are arranged. A height of the pillar in a thickness direction of the substrate and a width of the pillar differ for each of the regions. A distance (period) between centers of the pillars adjacent to each other is constant. Outer end portions of the uneven structure in the thickness direction are located on the same plane.
    Type: Application
    Filed: December 14, 2020
    Publication date: June 24, 2021
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Shohei HAYASHI, Tetsushi SHIMOMURA, Hiroyasu FUJIWARA