Patents by Inventor Takahito Sakai

Takahito Sakai 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: 11383498
    Abstract: The present invention provides a laminate film and a display member including the laminate film, which are excellent in visibility of external information such as scenery and displayability of information from a projection member, and are also excellent in color tone reproducibility. The laminate film includes a laminate of 50 or more alternately arranged layers of a plurality of different thermoplastic resins, the laminate film having a transmittance of light incident perpendicularly to a film surface of 50% or more, the laminate film satisfying a relationship of R20?R40<R70, wherein R20, R40, and R70 are reflectances of a P-wave incident at angles of 20°, 40°, and 70°, respectively, to the normal to the film surface, the reflectance of R70 being 30% or more, reflected light of the P-wave incident at 70° to the normal to the film surface having a saturation of 20 or less.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: July 12, 2022
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Takayuki Uto, Wataru Gouda, Takahito Sakai, Hiroji Kojima, Yuji Matsuo
  • Publication number: 20210138772
    Abstract: The present invention provides a laminate film and a display member including the laminate film, which are excellent in visibility of external information such as scenery and displayability of information from a projection member, and are also excellent in color tone reproducibility. The laminate film includes a laminate of 50 or more alternately arranged layers of a plurality of different thermoplastic resins, the laminate film having a transmittance of light incident perpendicularly to a film surface of 50% or more, the laminate film satisfying a relationship of R20?R40<R70, wherein R20, R40, and R70 are reflectances of a P-wave incident at angles of 20°, 40°, and 70°, respectively, to the normal to the film surface, the reflectance of R70 being 30% or more, reflected light of the P-wave incident at 70° to the normal to the film surface having a saturation of 20 or less.
    Type: Application
    Filed: April 5, 2019
    Publication date: May 13, 2021
    Applicant: Toray Industries, Inc.
    Inventors: Takayuki Uto, Wataru Gouda, Takahito Sakai, Hiroji Kojima, Yuji Matsuo
  • Patent number: 10955593
    Abstract: The present invention provides a light source unit capable of displaying an image of a desired color without causing color unevenness when mounted on a display. A light source unit including: a light source; a color conversion member that converts incident light incident from the light source into light having a longer wavelength than the incident light does; and a reflective film that is present between the light source and the color conversion member, transmits light incident from the light source, and reflects light exited from the color conversion member, wherein in the reflective film, the scattering angle (R2?R1) on at least one film surface is 5° or more, where the scattering angle is obtained from angles R1 and R2 (R1<R2) at which the transmitted light intensity is Tmax(0)/100 relative to the maximum transmitted light intensity of halogen light incident perpendicularly to the film surface of Tmax(0).
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: March 23, 2021
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Takayuki Uto, Wataru Gouda, Takahito Sakai
  • Publication number: 20200348457
    Abstract: The present invention provides a light source unit capable of displaying an image of a desired color without causing color unevenness when mounted on a display. A light source unit including: a light source; a color conversion member that converts incident light incident from the light source into light having a longer wavelength than the incident light does; and a reflective film that is present between the light source and the color conversion member, transmits light incident from the light source, and reflects light exited from the color conversion member, wherein in the reflective film, the scattering angle (R2?R1) on at least one film surface is 5° or more, where the scattering angle is obtained from angles R1 and R2 (R1<R2) at which the transmitted light intensity is Tmax(0)/100 relative to the maximum transmitted light intensity of halogen light incident perpendicularly to the film surface of Tmax(0).
    Type: Application
    Filed: September 10, 2018
    Publication date: November 5, 2020
    Applicant: Toray Industries, Inc.
    Inventors: Takayuki Uto, Wataru Gouda, Takahito Sakai
  • Patent number: 6128657
    Abstract: A load sharing system composed of a plurality of servers that are interconnected over a network for providing optimum and efficient operations at high reliability. The system employs a plurality of servers and a communication controller. A state manager in the communication controller first establishes connection paths on the network to reach the state management agents. The state manager then performs a centralized management of activity status of the servers based on status information collected from the state management agents via the established connection paths. A distribution processor disposed in the communication controller receives service requests from user terminals via a network and determines their respective destinations according to management data provided by the state manager. The distribution processor then forwards the service requests to the servers over the communication medium to direct their execution.
    Type: Grant
    Filed: August 19, 1996
    Date of Patent: October 3, 2000
    Assignee: Fujitsu Limited
    Inventors: Katsutoshi Okanoya, Susumu Matsumoto, Kazuhiko Shoji, Yutaka Konishi, Akira Takahashi, Masamitsu Kimura, Mitsuru Kusakawa, Takahito Sakai, Minoru Kyoya, Masakazu Watanabe