Patents by Inventor Kuniaki YAMATAKE

Kuniaki YAMATAKE 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: 20240102908
    Abstract: This optical cell for sedimentation analysis has a pair of opposing surfaces through which light is transmitted, and two polarizing plates, in which each of the two polarizing plates is disposed in a crossed Nicols state on each of the inner surfaces of the pair of opposing surfaces.
    Type: Application
    Filed: December 15, 2021
    Publication date: March 28, 2024
    Applicant: RESONAC CORPORATION
    Inventors: Yasunao MIYAMURA, Ayako NISHIOKA, Yasushi KADOWAKI, Kuniaki YAMATAKE, Masanao HARA, Shigeru YAMAKI, Hideki OHATA
  • Publication number: 20240060888
    Abstract: The present method for evaluating an orientation of silver nanowires is a method for measuring an orientation of silver nanowires included in a polyvinyl alcohol film, the method including measuring, using linearly polarized near-infrared light, a first transmittance T1 for polarized light perpendicular to an orientation direction of silver nanowires and a second transmittance T0 for polarized light parallel to the orientation direction of the silver nanowires in a polyvinyl alcohol film including the silver nanowires, and determining an orientation to be high in a case where a ratio (T1/T0) of the first transmittance T1 to the second transmittance T0 is greater than 1, and determining the orientation to be low in a case where the ratio is close to 1.
    Type: Application
    Filed: December 15, 2021
    Publication date: February 22, 2024
    Applicant: Resonac Corporation
    Inventors: Yasunao MIYAMURA, Yasushi KADOWAKI, Kuniaki YAMATAKE, Masanao HARA, Shigeru YAMAKI, Hideki OHATA
  • Patent number: 11899038
    Abstract: An acceleration sensor is provided in which a sensitive color plate is provided between two polarizing plates that are in a crossed Nicol disposition, and a silver nanowire dispersion is disposed between the sensitive color plate and one of the polarizing plates.
    Type: Grant
    Filed: December 18, 2020
    Date of Patent: February 13, 2024
    Assignee: Resonac Corporation
    Inventors: Yasunao Miyamura, Yasushi Kadowaki, Kuniaki Yamatake, Masanao Hara, Shigeru Yamaki, Hideki Ohata
  • Publication number: 20230055947
    Abstract: An acceleration sensor is provided in which a sensitive color plate is provided between two polarizing plates that are in a crossed Nicol disposition, and a silver nanowire dispersion is disposed between the sensitive color plate and one of the polarizing plates.
    Type: Application
    Filed: December 18, 2020
    Publication date: February 23, 2023
    Applicant: SHOWA DENKO K.K.
    Inventors: Yasunao MIYAMURA, Yasushi KADOWAKI, Kuniaki YAMATAKE, Masanao HARA, Shigeru YAMAKI, Hideki OHATA
  • Publication number: 20230046460
    Abstract: In a method for producing a high-molecular-weight polymer sheet, when a monomer composition including silver nanowires is polymerized, the monomer composition is allowed to stand in a state in which a thickness direction of the obtained high-molecular-weight polymer sheet before the polymerization is a vertical direction, and the silver nanowires in the monomer composition are oriented in the vertical direction and polymerized.
    Type: Application
    Filed: December 18, 2020
    Publication date: February 16, 2023
    Applicant: SHOWA DENKO K.K.
    Inventors: Yasunao MIYAMURA, Yasushi KADOWAKI, Kuniaki YAMATAKE, Masanao HARA, Shigeru YAMAKI, Hideki OHATA
  • Publication number: 20230025211
    Abstract: An evaluation method includes a step of disposing a sensitive color plate between two polarization plates disposed in a crossed Nicols shape, a step of disposing a measurement material that is a transparent material containing a nanowire between any of one polarization plate or the other polarization plate of the polarization plates and the sensitive color plate, a step of making white light incident from a side of one of the disposed polarization plates, a step of observing a color of the measurement material from a side of the other polarization plate, and a step of evaluating an orientation direction of the nanowire from the color of the measurement material obtained by observation.
    Type: Application
    Filed: December 18, 2020
    Publication date: January 26, 2023
    Applicant: SHOWA DENKO K.K.
    Inventors: Yasunao MIYAMURA, Yasushi KADOWAKI, Kuniaki YAMATAKE, Masanao HARA, Shigeru YAMAKI, Hideki OHATA
  • Publication number: 20230027915
    Abstract: The present invention provides a production method of a polymerized polymer containing a silver nanowire, including a preparation step of preparing a monomer composition containing the silver nanowire, a polymerization step of performing polymerization of the monomer composition containing the silver nanowire, and a standing step of leaving the monomer composition to stand which is performed between the preparation step and the polymerization step, in which a start of the polymerization step is determined in the standing step based on an orientation state in a vertical direction of the silver nanowire in the monomer composition as an index.
    Type: Application
    Filed: December 18, 2020
    Publication date: January 26, 2023
    Applicant: SHOWA DENKO K.K
    Inventors: Yasunao MIYAMURA, Yasushi KADOWAKI, Kuniaki YAMATAKE, Masanao HARA, Shigeru YAMAKI, Hideki OHATA