Patents by Inventor Chiaki KINNO

Chiaki KINNO 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: 10921700
    Abstract: The projector appropriately generates white light from a laser light source and uses the white light for image display. A white light generator that generates white light from blue light and yellow light includes a dichroic mirror that is irradiated with blue light from a blue laser, a first condenser lens that focuses the blue light that has passed through the dichroic mirror, a diffusion plate that diffuses the focused blue light, a second condenser lens that focuses the blue light obtained by allowing the diffused blue light to pass through the dichroic mirror, and a phosphor that is irradiated with the focused blue light to emit yellow light; the diffusion plate is an alumina ceramic plate; the dichroic mirror has a first region that transmits one of the blue light and the yellow light and reflects the other and a second region that reflects or transmits both.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: February 16, 2021
    Assignee: MAXELL, LTD.
    Inventors: Minjoo Park, Kazuo Shikita, Chiaki Kinno, Akihiro Shiraishi, Takuya Shimizu, Hiroshi Nakamori
  • Publication number: 20210033954
    Abstract: A projector generates white light from a laser light source and uses the white light for image display. The white light generator has a rectangular light generating lens that generates excitation light of a rectangular shape from the blue light of a blue laser and a phosphor wheel, coated with a phosphor that is irradiated with the excitation light, to emit yellow light. In the phosphor wheel, a length in the vertical direction of a rectangular shape of an irradiation region is represented by v, and a length in the horizontal direction is represented by h, wherein h<v; and a center of the rectangular shape is within any one of a region having an angle of 45° or more and 135° or less and a region having an angle of 225° or more and 315° or less in the phosphor coat region of the phosphor wheel.
    Type: Application
    Filed: February 28, 2019
    Publication date: February 4, 2021
    Inventors: Hiroshi NAKAMORI, Kazuo SHIKITA, Akihiro SHIRAISHI, Chiaki KINNO, Takuya SHIMIZU, Minjoo PARK
  • Publication number: 20200401030
    Abstract: A projector includes: a white light generator that uses a blue laser as a light source to generate blue light and yellow light based on the blue laser and generates white light including the generated blue light and yellow light; and an optical system that modulates light based on the white light generated by the white light generator with an image display element and projects the modulated light, wherein the white light generator includes: a dichroic mirror that is irradiated with the blue light from the blue laser as the light source; a first condenser lens that focuses blue light being reflected by or passing through the dichroic mirror; a diffusion plate that diffuses the blue light focused by the first condenser lens; a second condenser lens that focuses the blue light passing through or being reflected by the dichroic mirror; and a phosphor that emits yellow light.
    Type: Application
    Filed: December 27, 2017
    Publication date: December 24, 2020
    Inventors: Hiroshi NAKAMORI, Kazuo SHIKITA, Chiaki KINNO, Akihiro SHIRAISHI, Takuya SHIMIZU
  • Publication number: 20200341361
    Abstract: The projector appropriately generates white light from a laser light source and uses the white light for image display. A white light generator that generates white light from blue light and yellow light includes a dichroic mirror that is irradiated with blue light from a blue laser, a first condenser lens that focuses the blue light that has passed through the dichroic mirror, a diffusion plate that diffuses the focused blue light, a second condenser lens that focuses the blue light obtained by allowing the diffused blue light to pass through the dichroic mirror, and a phosphor that is irradiated with the focused blue light to emit yellow light; the diffusion plate is an alumina ceramic plate; the dichroic mirror has a first region that transmits one of the blue light and the yellow light and reflects the other and a second region that reflects or transmits both.
    Type: Application
    Filed: January 23, 2019
    Publication date: October 29, 2020
    Inventors: Minjoo PARK, Kazuo SHIKITA, Chiaki KINNO, Akihiro SHIRAISHI, Takuya SHIMIZU, Hiroshi NAKAMORI
  • Publication number: 20110209376
    Abstract: In an image display device, the number of parts is reduced through simplification of fixing members for use in fitting a display panel to a front frame. Design of the device is improved by thinning the front upper side of the front frame and by getting fixing members out of sight on the back upper side thereof. The front frame has hooks, which are produced integrally with the front frame, on its upper back so as to position the display panel. The upper side of the front frame is not screwed. Instead, the hooks so act as to prevent the display panel from falling off the front frame. A back cover has ribs, which are produced integrally with the back cover, in its portion facing the hook. The ribs so act as to prevent the hook from moving beyond predetermined distance, thereby ensuring the positioning of the display panel.
    Type: Application
    Filed: October 27, 2010
    Publication date: September 1, 2011
    Inventor: Chiaki KINNO
  • Patent number: D692473
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: October 29, 2013
    Assignee: Hitachi Consumer Electronics Co., Ltd.
    Inventors: Yuta Kawaguchi, Yoshihiro Iwama, Chiaki Kinno, Atsushi Ishibashi