Patents by Inventor Hisashi Esaki

Hisashi Esaki 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).

  • ALUMINA POWDER, PROCESS FOR ITS PRODUCTION AND RESIN COMPOSITION EMPLOYING IT
    Publication number: 20110046267
    Abstract: To provide an alumina powder having an improved flowability, a process for its production, and a resin composition employing it. An alumina powder which has an ?-phase content of at most 40% as measured by the following method, an average circularity of at least 0.
    Type: Application
    Filed: April 28, 2009
    Publication date: February 24, 2011
    Applicant: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Takaaki Tanaka, Osamu Kunitomo, Takahisa Mizumoto, Hisashi Esaki, Akinori Shimokawa