Patents by Inventor Takaharu Iwaya

Takaharu Iwaya 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: 11960080
    Abstract: Provided is a head-up display device capable of reducing the divergence angle of display light which has passed a cross point. A head-up display device comprises: a light source that emits light beams; a liquid crystal panel that emits display light beams upon reception of the light beams from the light source; a first mirror that reflects the display light beams from the liquid crystal panel and causes the reflected display light beams to cross at a cross point in a crossing direction; a second mirror that reflects the display light beams reflected on the first mirror and passed through the cross point; and a second lenticular lens that converges the light beams from the light source and causes the display light beams to reach the first mirror in the converged state.
    Type: Grant
    Filed: October 19, 2021
    Date of Patent: April 16, 2024
    Assignee: Nippon Seiki Co., Ltd.
    Inventors: Takaharu Iwaya, Chiaki Shibuya
  • Publication number: 20230367119
    Abstract: Provided is a head-up display device capable of reducing the divergence angle of display light which has passed a cross point. A head-up display device comprises: a light source that emits light beams; a liquid crystal panel that emits display light beams upon reception of the light beams from the light source; a first mirror that reflects the display light beams from the liquid crystal panel and causes the reflected display light beams to cross at a cross point in a crossing direction; a second mirror that reflects the display light beams reflected on the first mirror and passed through the cross point; and a second lenticular lens that converges the light beams from the light source and causes the display light beams to reach the first mirror in the converged state.
    Type: Application
    Filed: October 19, 2021
    Publication date: November 16, 2023
    Inventors: Takaharu IWAYA, Chiaki SHIBUYA
  • Patent number: 11474353
    Abstract: A head-up display apparatus in which display light emitted by a display device to express an image is reflected by a reflecting part, and a virtual image corresponding to the reflected image is displayed. The apparatus includes: a reflecting-part holder provided with a pair of rotary shaft parts protruding at both ends thereof, the rotary shaft parts retaining the reflecting part; a pair of bearings rotatably supporting the pair of rotary shaft parts; and a pair of bearing holders retaining the pair of bearings in a housing; first supported parts protruding in the radial direction of the bearings provided to the bearing holders, and the housing provided with a hole-shaped first support part in which the first supported part of one bearing holder is positioned, and an elongated-hole-shaped second support part elongated in an axial direction in which the first supported part of the other bearing holder is positioned.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: October 18, 2022
    Assignee: NIPPON SEIKI CO., LTD.
    Inventors: Yuya Uto, Takaharu Iwaya
  • Publication number: 20200363637
    Abstract: A head-up display apparatus in which display light emitted by a display device to express an image is reflected by a reflecting part, and a virtual image corresponding to the reflected image is displayed. The apparatus includes: a reflecting-part holder provided with a pair of rotary shaft parts protruding at both ends thereof, the rotary shaft parts retaining the reflecting part; a pair of bearings rotatably supporting the pair of rotary shaft parts; and a pair of bearing holders retaining the pair of bearings in a housing; first supported parts protruding in the radial direction of the bearings provided to the bearing holders, and the housing provided with a hole-shaped first support part in which the first supported part of one bearing holder is positioned, and an elongated-hole-shaped second support part elongated in an axial direction in which the first supported part of the other bearing holder is positioned.
    Type: Application
    Filed: July 30, 2018
    Publication date: November 19, 2020
    Inventors: Yuya Uto, Takaharu Iwaya