Patents by Inventor Ryuu Koike

Ryuu Koike 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).

  • PLATE-LIKE ALUMINA PARTICLES, METHOD FOR PRODUCING PLATE-LIKE ALUMINA PARTICLES, AND RESIN COMPOSITION
    Publication number: 20220112088
    Abstract: Plate-like alumina particles have an aspect ratio of 5 to 500, in which in solid-state 27Al NMR analysis, the longitudinal relaxation time T1 for a peak of six-coordinated aluminum at 10 to 30 ppm is 5 seconds or more at a static magnetic field strength of 14.1 T.
    Type: Application
    Filed: December 20, 2019
    Publication date: April 14, 2022
    Applicant: DIC Corporation
    Inventors: Shingo Takada, Ryuu Koike, Jianjun Yuan, Yoshiyuki Sano
  • Water-based conductive ink for inkjet recording
    Patent number: 9384868
    Abstract: There is provided a water-based conductive ink for inkjet recording, the water-based conductive ink enabling formation of highly conductive circuit wiring even by low-temperature firing. A water-based conductive ink for inkjet recording contains metal nanoparticles (X), a polyhydric alcohol (A), and water (B), wherein a polyhydric alcohol represented by the following general formula is used as the polyhydric alcohol (A) (where R represents a hydrogen atom or any one lower alkyl group selected from the group consisting of a methyl group, an ethyl group, and an n-propyl group).
    Type: Grant
    Filed: March 5, 2012
    Date of Patent: July 5, 2016
    Assignee: DIC CORPORATION
    Inventors: Mayoka Tachi, Sunao Yoshihara, Ryuu Koike, Yoshinori Katayama
  • WATER-BASED CONDUCTIVE INK FOR INKJET RECORDING
    Publication number: 20140134327
    Abstract: There is provided a water-based conductive ink for inkjet recording, the water-based conductive ink enabling formation of highly conductive circuit wiring even by low-temperature firing. A water-based conductive ink for inkjet recording contains metal nanoparticles (X), a polyhydric alcohol (A), and water (B), wherein a polyhydric alcohol represented by the following general formula is used as the polyhydric alcohol (A) (where R represents a hydrogen atom or any one lower alkyl group selected from the group consisting of a methyl group, an ethyl group, and an n-propyl group).
    Type: Application
    Filed: March 5, 2012
    Publication date: May 15, 2014
    Applicant: DIC CORPORATION
    Inventors: Mayoka Tachi, Sunao Yoshihara, Ryuu Koike, Yoshinori Katayama