Patents by Inventor Yoshihiko Obara

Yoshihiko Obara 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: 20220314753
    Abstract: The vehicle rear information acquisition system of the disclosure includes: a back window at a rear of a vehicle; and an information acquisition device disposed inside the vehicle, opposing the back window, and configured to apply and/or receive light to acquire information from outside the vehicle, the back window including a glass plate and a coating film on at least a part of a surface of the glass plate, and having a privacy region for protecting privacy inside the vehicle and an information acquisition region opposing the information acquisition device and transmitting the light, the privacy region having the coating film on the surface of the glass plate, the privacy region having a visible light transmittance of 10% or less, the information acquisition region having a visible light transmittance of 25% or more.
    Type: Application
    Filed: September 1, 2020
    Publication date: October 6, 2022
    Applicant: CENTRAL GLASS COMPANY, LIMITED
    Inventors: Nobuyuki NAKAI, Takuro KIDOKORO, Mizuki TETSUMURA, Yoshihiko OBARA
  • Patent number: 11117830
    Abstract: A glass article includes a glass substrate, a colored film formed on one of main surfaces of the glass substrate, an uncoated portion where no colored film is formed which is present in part of the one of main surfaces or on an edge face of the glass substrate, a boundary between the colored film and the uncoated portion, and a film thickness varying portion where the colored film gradually tapers in thickness toward the boundary. The uncoated portion is visible in the glass article used as a window, the glass substrate has an absorbance in the wavelength range of 380 nm to 780 nm of 0.10 or lower per mm of thickness, and the glass article has a portion blue in color, gray in color, or pink in color where the colored film is formed.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: September 14, 2021
    Assignee: CENTRAL GLASS COMPANY, LIMITED
    Inventors: Nobuyuki Nakai, Yoshihiko Obara
  • Publication number: 20200071226
    Abstract: A glass article includes a glass substrate, a colored film formed on one of main surfaces of the glass substrate, an uncoated portion where no colored film is formed which is present in part of the one of main surfaces or on an edge face of the glass substrate, a boundary between the colored film and the uncoated portion, and a film thickness varying portion where the colored film gradually tapers in thickness toward the boundary. The uncoated portion is visible in the glass article used as a window, the glass substrate has an absorbance in the wavelength range of 380 nm to 780 nm of 0.10 or lower per mm of thickness, and the glass article has a portion blue in color, gray in color, or pink in color where the colored film is formed.
    Type: Application
    Filed: October 2, 2017
    Publication date: March 5, 2020
    Applicant: CENTRAL GLASS COMPANY, LIMITED
    Inventors: Nobuyuki Nakai, Yoshihiko Obara
  • Publication number: 20200055772
    Abstract: A method of producing a colored film-attached glass sheet includes a step of obtaining a colored film-forming coating solution by mixing the following components: (a) a reaction product obtained by reacting an amino group-containing silane compound with at least one boron compound selected from the group consisting of H3BO3 and B2O3; (b) a metal alkoxide and/or a metal alkoxide condensate; (c) a synthetic resin; (d) a triazine-based UV absorber; (e) a solvent substantially consisting of a non-aqueous solvent having an SP value of 8 to 11.5 (cal/cm3)1/2; and (f) a pigment. The colored film-forming coating solution contains the UV absorber in an amount of 5 to 12% by mass relative to the total solids content and the pigment in an amount equal to 0.02 to 0.50 times the amount of the UV absorber by mass ratio.
    Type: Application
    Filed: January 24, 2018
    Publication date: February 20, 2020
    Applicant: CENTRAL GLASS COMPANY, LIMITED
    Inventors: Nobuyuki Nakai, Yoshihiko Obara
  • Patent number: 10550031
    Abstract: Disclosed is a glass window having a luminous capability, which is suitable for use in automotive applications, architectural applications, or other applications. Exemplary embodiments of a glass window having a luminous capability include one or more glass sheet layers, a thin film layer having fine particles dispersed in a matrix of a thin film material, and at least one light source for introducing light into the thin film layer. The fine particles scatter the light and generate luminousness of the glass window. Exemplary embodiments of a glass window having luminous capability may further include one or more resinous sheet layers or one or more interlayers such as a plastic film layer.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: February 4, 2020
    Assignee: Central Glass Company, Limited
    Inventors: Michael Bard, Tobias Solchenbach, Yoshihiko Obara, Nobuyuki Nakai
  • Publication number: 20190218139
    Abstract: Disclosed is a glass window having a luminous capability, which is suitable for use in automotive applications, architectural applications, or other applications. Exemplary embodiments of a glass window having a luminous capability include one or more glass sheet layers, a thin film layer having fine particles dispersed in a matrix of a thin film material, and at least one light source for introducing light into the thin film layer. The fine particles scatter the light and generate luminousness of the glass window. Exemplary embodiments of a glass window having luminous capability may further include one or more resinous sheet layers or one or more interlayers such as a plastic film layer.
    Type: Application
    Filed: February 23, 2017
    Publication date: July 18, 2019
    Inventors: Michael Bard, Tobias Solchenbach, Yoshihiko Obara, Nobuyuki Nakai
  • Patent number: 9171655
    Abstract: A solid electrolyte film including a resin having a repeating unit containing a bis(perfluoroalkanesulfonyl)methide moiety. This solid electrolyte film combines high proton conductivity with low methanol permeability for prevention of methanol crossover and can suitably be used for a direct methanol fuel cell.
    Type: Grant
    Filed: February 15, 2011
    Date of Patent: October 27, 2015
    Assignee: Central Glass Company, Limited
    Inventors: Katsutoshi Suzuki, Yoshihiko Obara, Toru Tanaka, Haruhiko Komoriya
  • Patent number: 8445551
    Abstract: Disclosed are a solid electrolyte membrane for fuel cells, which is characterized by that there has been used a silicone resin obtained by subjecting a methide series siloxane compound having a specific, strong acid bis(perfluoroalkanesulfonyl)methide moiety, a specific polysiloxane compound, and a specific silane compound to a cross-linking reaction, and its production process. This membrane has heat resistance, is superior in chemical stability, has a good proton conductivity even under a low water content condition, and has a low methanol permeability.
    Type: Grant
    Filed: August 19, 2010
    Date of Patent: May 21, 2013
    Assignee: Central Glass Company, Ltd.
    Inventors: Yoshihiko Obara, Katsutoshi Suzuki, Toru Tanaka, Haruhiko Komoriya
  • Publication number: 20120301811
    Abstract: A solid electrolyte film according to the present invention includes a resin having a repeating unit of the general formula (1) containing a bis(perfluoroalkanesulfonyl)methide moiety: where R represents a hydrogen atom or a methyl group; Y represents an oxygen atom or NH; Rf represents a C1-C4 perfluoroalkyl group; and W represents either a C2-C4 straight or C3-C4 branched alkylene group or a C5-C8 cyclic hydrocarbon group as a linking group, which may have a branched chain or a cross-linking structure. This solid electrolyte film combines high proton conductivity with low methanol permeability for prevention of methanol crossover and can suitably be used for a direct methanol fuel cell etc.
    Type: Application
    Filed: February 15, 2011
    Publication date: November 29, 2012
    Applicant: Central Glass Company, Limited
    Inventors: Katsutoshi Suzuki, Yoshihiko Obara, Toru Tanaka, Haruhiko Komoriya
  • Publication number: 20120142791
    Abstract: Disclosed are a solid electrolyte membrane for fuel cells, which is characterized by that there has been used a silicone resin obtained by subjecting a methide series siloxane compound having a specific, strong acid bis(perfluoroalkanesulfonyl)methide moiety, a specific polysiloxane compound, and a specific silane compound to a cross-linking reaction, and its production process. This membrane has heat resistance, is superior in chemical stability, has a good proton conductivity even under a low water content condition, and has a low methanol permeability.
    Type: Application
    Filed: August 19, 2010
    Publication date: June 7, 2012
    Applicant: Central Glass Company, Limited
    Inventors: Yoshihiko Obara, Katsutoshi Suzuki, Toru Tanaka, Haruhiko Komoriya