Patents by Inventor Yasunori HAYASHIDA

Yasunori HAYASHIDA 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: 11163200
    Abstract: Provided is a laminate which can not only control the amount of external light transmitted, but can also be used as a mirror. A laminate 1 comprises: a first liquid crystal member 100; a reflection type polarizing member 200; and a second liquid crystal member 300. The first liquid crystal member has first liquid crystal cells with changing orientation states, and a first absorption type polarizing member.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: November 2, 2021
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventors: Yusuke Hagiwara, Yasunori Hayashida, Tomoya Kawashima, Yukihiro Kyouden
  • Patent number: 11016355
    Abstract: A liquid crystal light control apparatus includes a liquid crystal light control film and power supply device that drives liquid crystal light control film. Liquid crystal light control film has a structure wherein liquid crystal layer is sandwiched between paired transparent electrode layers, and used by being adhered to a large transparent member. Power supply device supplies a predetermined AC voltage between terminals a and b of liquid crystal light control film. A condition |Z0|??×RF is set where RF is a DC resistance between terminals a and b of liquid crystal light control film, |Z0| is an output impedance between terminals A and B of power supply device, and predetermined coefficient ?=0.2. In order to protect power supply device, condition Vp/Imax?|Z0|??×RF is set where Vp is output peak voltage of power supply device and Imax is maximum allowable current.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: May 25, 2021
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventors: Hiroshi Kubota, Yusuke Hagiwara, Yasunori Hayashida
  • Publication number: 20210072571
    Abstract: A liquid crystal light control apparatus includes a liquid crystal light control film and power supply device that drives liquid crystal light control film. Liquid crystal light control film has a structure wherein liquid crystal layer is sandwiched between paired transparent electrode layers, and used by being adhered to a large transparent member. Power supply device supplies a predetermined AC voltage between terminals a and b of liquid crystal light control film. Condition |Z0|??×RF is set where RF is a DC resistance between terminals a and b of liquid crystal light control film, |Z0| is an output impedance between terminals A and B of power supply device, and predetermined coefficient ?=0.2. In order to protect power supply device, condition Vp/Imax?|Z0|??×RF is set where Vp is output peak voltage of power supply device and Imax is maximum allowable current.
    Type: Application
    Filed: January 28, 2019
    Publication date: March 11, 2021
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Hiroshi KUBOTA, Yusuke HAGIWARA, Yasunori HAYASHIDA
  • Publication number: 20210048572
    Abstract: Provided is a light control film capable of gradually changing the in-plane transmittance and thereby adding an in-plane gradation between light and dark. A light control film 10 according to the present invention includes: a first electrode 22A and a second electrode 22B disposed facing each other; a light control material 14 disposed between the first electrode 22A and the second electrode 22B and changing the transmittance in accordance with the potential difference between the first electrode 22A and the second electrode 22B; and a potential gradient forming part for providing the gradient of the potential difference in the extension direction of the first electrode 22A and the second electrode 22B.
    Type: Application
    Filed: November 4, 2020
    Publication date: February 18, 2021
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Keisuke Miura, Yusuke Hagiwara, Yasunori Hayashida, Makoto Yamaki
  • Patent number: 10845522
    Abstract: A light control film is capable of gradually changing the in-plane transmittance and thereby adding an in-plane gradation between light and dark. A light control film includes: a first electrode and a second electrode disposed facing each other; a light control material disposed between the first electrode and the second electrode and changing the transmittance in accordance with the potential difference between the first electrode and the second electrode; and a potential gradient forming part for providing the gradient of the potential difference in the extension direction of the first electrode and the second electrode.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: November 24, 2020
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventors: Keisuke Miura, Yusuke Hagiwara, Yasunori Hayashida, Makoto Yamaki
  • Publication number: 20190331947
    Abstract: Provided is a laminate which can not only control the amount of external light transmitted, but can also be used as a mirror. A laminate 1 comprises: a first liquid crystal member 100; a reflection type polarizing member 200; and a second liquid crystal member 300. The first liquid crystal member has first liquid crystal cells with changing orientation states, and a first absorption type polarizing member.
    Type: Application
    Filed: October 12, 2017
    Publication date: October 31, 2019
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Yusuke HAGIWARA, Yasunori HAYASHIDA, Tomoya KAWASHIMA, Yukihiro KYOUDEN
  • Publication number: 20190146134
    Abstract: A light control film is capable of gradually changing the in-plane transmittance and thereby adding an in-plane gradation between light and dark. A light control film includes: a first electrode and a second electrode disposed facing each other; a light control material disposed between the first electrode and the second electrode and changing the transmittance in accordance with the potential difference between the first electrode and the second electrode; and a potential gradient forming part for providing the gradient of the potential difference in the extension direction of the first electrode and the second electrode.
    Type: Application
    Filed: June 16, 2017
    Publication date: May 16, 2019
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Keisuke MIURA, Yusuke HAGIWARA, Yasunori HAYASHIDA, Makoto YAMAKI