Patents by Inventor Kentaro YAMURA

Kentaro YAMURA 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).

  • Publication number: 20240427208
    Abstract: An optically anisotropic layer formed of a liquid crystal compound, having first and second layers in direct contact with different alignment states, the first layer is formed by fixing an alignment state of the liquid crystal compound in homogeneous alignment, and the second layer in homeotropic alignment, and the optically anisotropic layer satisfies a relationship of Expression (2A) Xmax/Xmin<1.10 when a region within a square having a largest size that can be drawn on a surface of the optically anisotropic layer is subdivided into 64 square-shaped sub-regions having the same area, a thickness d1 of the first layer and a thickness d2 of the second layer at a center position of the sub-region are obtained, X=d1/(d1 +d2) Expression (1) for each sub-region is calculated, and among the calculated 64 X's, are a maximum value Xmax and a minimum value Xmin.
    Type: Application
    Filed: September 9, 2024
    Publication date: December 26, 2024
    Applicant: FUJIFILM Corporation
    Inventors: Shinpei YOSHIDA, Yuta TAKAHASHI, Kentaro YAMURA, Keisuke KODAMA
  • Patent number: 12124144
    Abstract: Provided is an optically anisotropic layer formed of a liquid crystal compound, which includes first and second layers in direct contact along a thickness direction, an alignment state of the liquid crystal compound in the first layer is different from the second layer, and the optically anisotropic layer satisfies a relationship of Expression (2A) Xmax/Xmin<1.10 where a region within a square having a largest size that can be drawn on a surface of the optically anisotropic layer is subdivided into 64 square-shaped sub-regions having the same area, a thickness d1 of the first layer and a thickness d2 of the second layer at a center position of the sub-region are obtained, X represented by Expression (1) X=d1/(d1+d2) for each sub-region is calculated, and among the calculated 64 X's, a maximum value is defined as Xmax and a minimum value is defined as Xmin.
    Type: Grant
    Filed: January 31, 2023
    Date of Patent: October 22, 2024
    Assignee: FUJIFILM Corporation
    Inventors: Shinpei Yoshida, Yuta Takahashi, Kentaro Yamura, Keisuke Kodama
  • Publication number: 20230176438
    Abstract: Provided is an optically anisotropic layer formed of a liquid crystal compound, which includes first and second layers in direct contact along a thickness direction, an alignment state of the liquid crystal compound in the first layer is different from the second layer, and the optically anisotropic layer satisfies a relationship of Expression (2A) Xmax/Xmin<1.10 where a region within a square having a largest size that can be drawn on a surface of the optically anisotropic layer is subdivided into 64 square-shaped sub-regions having the same area, a thickness d1 of the first layer and a thickness d2 of the second layer at a center position of the sub-region are obtained, X represented by Expression (1) X=d1/(d1+d2) for each sub-region is calculated, and among the calculated 64 X's, a maximum value is defined as Xmax and a minimum value is defined as Xmin.
    Type: Application
    Filed: January 31, 2023
    Publication date: June 8, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Shinpei YOSHIDA, Yuta TAKAHASHI, Kentaro YAMURA, Keisuke KODAMA
  • Publication number: 20230077419
    Abstract: Provided is a water stopping tape having excellent workability. The water stopping tape includes a substrate layer, a pressure-sensitive adhesive layer that is located on the substrate layer, and a swelling layer that is located on the substrate layer together with the pressure-sensitive adhesive layer and has at least one kind of deformation assisting structure selected from the group consisting of a groove and a cut.
    Type: Application
    Filed: August 24, 2022
    Publication date: March 16, 2023
    Inventors: Kyohisa UCHIUMI, Kentaro YAMURA