Patents by Inventor Noriko KATASHIMA

Noriko KATASHIMA 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: 11150521
    Abstract: The reliability of a spacer is improved in comparison to conventional ones. A light control film which is obtained by sandwiching a liquid crystal layer between first and second laminates that are provided with at least alignment layers and which controls light transmitted therethrough by controlling the alignment of liquid crystal molecules in the liquid crystal layer by driving electrodes that are provided on the first and second laminates. With respect to the first laminate, a base that is formed of a transparent film material is provided with a spacer that maintains the thickness of the liquid crystal layer. With respect to the first and second laminates, the Vickers hardness of the spacer is from 16.9 to 40.2 inclusive, and the Vickers hardness of a part of the second laminate, the part being in contact with the front end of the spacer, is from 11.8 to 35.9 inclusive.
    Type: Grant
    Filed: June 26, 2020
    Date of Patent: October 19, 2021
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventors: Keisuke Miura, Yusuke Hagiwara, Tsubasa Honda, Noriko Katashima, Norio Ishii, Tomoya Kawashima
  • Publication number: 20200326577
    Abstract: The reliability of a spacer is improved in comparison to conventional ones. A light control film which is obtained by sandwiching a liquid crystal layer between first and second laminates that are provided with at least alignment layers and which controls light transmitted therethrough by controlling the alignment of liquid crystal molecules in the liquid crystal layer by driving electrodes that are provided on the first and second laminates. With respect to the first laminate, a base that is formed of a transparent film material is provided with a spacer that maintains the thickness of the liquid crystal layer. With respect to the first and second laminates, the Vickers hardness of the spacer is from 16.9 to 40.2 inclusive, and the Vickers hardness of a part of the second laminate, the part being in contact with the front end of the spacer, is from 11.8 to 35.9 inclusive.
    Type: Application
    Filed: June 26, 2020
    Publication date: October 15, 2020
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Keisuke MIURA, Yusuke HAGIWARA, Tsubasa HONDA, Noriko KATASHIMA, Norio ISHII, Tomoya KAWASHIMA
  • Patent number: 10732464
    Abstract: The present invention further improves the reliability of a spacer in comparison to conventional ones. A light control film 10 which is obtained by sandwiching a liquid crystal layer 14 between first and second laminates 13, 12 that are provided with at least alignment layers 23A, 23B, and which controls light transmitted therethrough by controlling the alignment of liquid crystal molecules 14A in the liquid crystal layer 14 by driving electrodes 22B, 22A that are provided on the first and second laminates 13, 12. With respect to the first laminate 13, a base 21B that is formed of a transparent film material is provided with a spacer 24 that maintains the thickness of the liquid crystal layer 14. With respect to the first and second laminates 13, 12, the Vickers hardness Xs of the spacer 24 is from 16.9 to 40.2 (inclusive), and the Vickers hardness Xf of a part of the second laminate 12, said part being in contact with the front end of the spacer 24, is from 11.8 to 35.9 (inclusive).
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: August 4, 2020
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventors: Keisuke Miura, Yusuke Hagiwara, Tsubasa Honda, Noriko Katashima, Norio Ishii, Tomoya Kawashima
  • Publication number: 20190121186
    Abstract: The present invention further improves the reliability of a spacer in comparison to conventional ones. A light control film 10 which is obtained by sandwiching a liquid crystal layer 14 between first and second laminates 13, 12 that are provided with at least alignment layers 23A, 23B, and which controls light transmitted therethrough by controlling the alignment of liquid crystal molecules 14A in the liquid crystal layer 14 by driving electrodes 22B, 22A that are provided on the first and second laminates 13, 12. With respect to the first laminate 13, a base 21B that is formed of a transparent film material is provided with a spacer 24 that maintains the thickness of the liquid crystal layer 14. With respect to the first and second laminates 13, 12, the Vickers hardness Xs of the spacer 24 is from 16.9 to 40.2 (inclusive), and the Vickers hardness Xf of a part of the second laminate 12, said part being in contact with the front end of the spacer 24, is from 11.8 to 35.9 (inclusive).
    Type: Application
    Filed: April 20, 2017
    Publication date: April 25, 2019
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Keisuke MIURA, Yusuke HAGIWARA, Tsubasa HONDA, Noriko KATASHIMA, Norio ISHII, Tomoya KAWASHIMA