Patents by Inventor Hirofumi HOSHIDA

Hirofumi HOSHIDA 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).

  • Patent number: 11872886
    Abstract: A display system includes a display device, an optical device, and an operation receiver. The display device is switchable between an emitting state where first image light is allowed to be emitted from the display device and a non-emitting state where the first image light is not allowed to be emitted from the display device. The optical device is switchable between a reflecting state where light coming from a back of the mobile body is reflected from the optical device and a transmitting state where the light passes through the optical device. The operation receiver switches between a first mode where the display device is in the emitting state while the optical member is in the transmitting state and a second mode where the display device is in the non-emitting state while the optical member is in the reflecting state.
    Type: Grant
    Filed: January 25, 2023
    Date of Patent: January 16, 2024
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Norihiro Imamura, Kenji Nagatomi, Keiichi Matsuzaki, Hirofumi Hoshida
  • Publication number: 20230302902
    Abstract: A display system includes: a display device switchable between an emitting state where first image light is allowed to be emitted from the display device and a non-emitting state where the first image light is not allowed to be emitted from the display device; an optical device switchable between a reflecting state where light coming from a back of the mobile body is reflected from the optical device and a transmitting state where the light passes through the optical device; and an operation receiver that receives an operation for switching the display system between a first mode where the display device is in the emitting state while the optical member is in the transmitting state and a second mode where the display device is in the non-emitting state while the optical member is in the reflecting state.
    Type: Application
    Filed: January 25, 2023
    Publication date: September 28, 2023
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Norihiro IMAMURA, Kenji NAGATOMI, Keiichi MATSUZAKI, Hirofumi HOSHIDA
  • Publication number: 20230296890
    Abstract: An optical device includes: a display; an optical element that includes a first face and a second face facing the first face, the optical element receiving light from the display through the first face, reflecting the received light on the second face, and emitting the reflected light through the first face; a housing that accommodates the display and the optical element; and a fixing structure that fixes the optical element by holding the optical element from different sides of the optical element.
    Type: Application
    Filed: January 31, 2023
    Publication date: September 21, 2023
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Kenji NAGATOMI, Norihiro IMAMURA, Hirofumi HOSHIDA
  • Publication number: 20230001791
    Abstract: A display device includes: a display; an optical element including a first surface and a second surface; and a reflective member provided on the second surface. The first surface is a convex cylindrical surface whose axial direction is a first direction (parallel to the X axis), allows light emitted from the display to enter, and allows the light reflected by the reflective member to exit. The second surface is a convex cylindrical surface whose axial direction is a second direction (parallel to the Y axis) orthogonal to the first direction. The reflective member includes a reflective surface that reflects the light that has entered from the first surface toward the first surface. The reflective surface is a concave cylindrical surface whose axial direction is the second direction.
    Type: Application
    Filed: June 24, 2022
    Publication date: January 5, 2023
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Norihiro IMAMURA, Kenji NAGATOMI, Hirofumi HOSHIDA
  • Patent number: 11235706
    Abstract: A display system includes: a display that emits light corresponding to image information; a half mirror that receives the light emitted, reflects, as reflected light, a first component of the light received, and transmits a second component different from the first component; and a first reflecting mirror having a concave surface that receives and reflects the reflected light toward the half mirror. The half mirror includes a first retardation film, a first support substrate, and a reflective polarizing film stacked in this order from a side on which the light emitted is received. The first retardation film changes a phase of the light received. The first support substrate is light-transmissive. The reflective polarizing film reflects a first polarized component and transmits a second polarized component different from the first polarized component.
    Type: Grant
    Filed: October 26, 2020
    Date of Patent: February 1, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Norihiro Imamura, Kenji Nagatomi, Hirofumi Hoshida, Michihiro Yamagata, Keiichi Matsuzaki, Shoji So
  • Publication number: 20210129755
    Abstract: A display system includes: a display that emits light corresponding to image information; a half mirror that receives the light emitted, reflects, as reflected light, a first component of the light received, and transmits a second component different from the first component; and a first reflecting mirror having a concave surface that receives and reflects the reflected light toward the half mirror. The half mirror includes a first retardation film, a first support substrate, and a reflective polarizing film stacked in this order from a side on which the light emitted is received. The first retardation film changes a phase of the light received. The first support substrate is light-transmissive. The reflective polarizing film reflects a first polarized component and transmits a second polarized component different from the first polarized component.
    Type: Application
    Filed: October 26, 2020
    Publication date: May 6, 2021
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Norihiro IMAMURA, Kenji NAGATOMI, Hirofumi HOSHIDA, Michihiro YAMAGATA, Keiichi MATSUZAKI, Shoji SO