Patents by Inventor Nao Murakami

Nao Murakami 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: 20030103186
    Abstract: A wide viewing angle polarizer having: a polarizing film; and a phase retarder adhesively laminated on at least one surface of the polarizing film through an adhesive layer, the phase retarder being made of a composite phase retarder constituted by a laminate in which a retardation layer B of a cholesteric liquid crystal-oriented solidified layer in a selective reflection wavelength range of not larger than 350 nm is supported by a retardation layer A of a thermoplastic resin exhibiting positive birefringence, the composite phase retarder being formed so that the laminate has Re of not smaller than 10 nm and Rth-Re of not smaller than 50 nm when Re and Rth are defined as Re=(nx−ny)×d and Rth=(nx−nz)×d respectively in which nx and ny are in-plane main refractive indices, nz is a thicknesswise refractive index, and d is a layer thickness.
    Type: Application
    Filed: October 9, 2002
    Publication date: June 5, 2003
    Applicant: NITTO DENKO CORPORATION
    Inventors: Shinichi Sasaki, Takashi Yamaoka, Nao Murakami, Hiroyuki Yoshimi
  • Publication number: 20030086033
    Abstract: A laminated phase retarder having: a laminate of a retardation layer A made of a thermoplastic resin exhibiting positive birefringent characteristic and a retardation layer B constituted by an oriented solidified layer of cholesteric liquid crystal exhibiting a selective reflection wavelength range not larger than 350 nm; wherein Re of the laminate is not smaller than 10 nm and Rth−Re of the laminate is not smaller than 50 nm when Re and Rth are given by Re=(nx−ny)×d and Rth=(nx−nz)×d in which nx and ny are in-plane main refractive indices, nz is a thicknesswise refractive index, and d is a layer thickness. A polarizing member having: a laminate of a laminated phase retarder defined above; and a polarizer. A liquid-crystal display device having: a liquid-crystal cell; and a laminated phase retarder or a polarizing member defined above and disposed on at least one of opposite surfaces of the liquid-crystal cell.
    Type: Application
    Filed: October 7, 2002
    Publication date: May 8, 2003
    Applicant: NITTO DENKO CORPORATION
    Inventors: Shinichi Sasaki, Takashi Yamaoka, Nao Murakami, Hiroyuki Yoshimi