Patents by Inventor Yosuke NUMA

Yosuke NUMA 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: 20240160049
    Abstract: To provide an optical laminate that exhibits an achromatic silver color even when observed from any angle in the case of using an optical laminate including a cholesteric liquid crystal layer exhibiting a silver color, and a polarizing lens and eyewear using the same. An optical laminate for eyewear includes a light reflecting layer comprising at least one cholesteric liquid crystal layer; and a support sandwiching the light reflecting layer, in which a reflection hue of the light reflecting layer exhibits a silver color, the light reflecting layer has a reflection characteristic over a wavelength range of at least 380 nm to 900 nm, and an absolute value of a difference (?R1?R2) between an average reflectance (R1) at 500 nm to 700 nm and an average reflectance (R2) at 701 nm to 900 nm of the light reflecting layer is 10 points or less in the wavelength range.
    Type: Application
    Filed: March 17, 2022
    Publication date: May 16, 2024
    Applicants: NIPPON KAYAKU KABUSHIKI KAISHA, MGC FILSHEET CO., LTD., MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Yosuke NUMA, Takashi KAWASHIMA, Junichi SEGAWA, Koichi TANAKA, Yuka KAKINUMA