Patents by Inventor Ryotaro NISHIOKA

Ryotaro NISHIOKA 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).

  • Composition for oral cavity
    Patent number: 11759405
    Abstract: Provided is an oral composition containing particles that have properties to seal dentinal tubules and excellent adhesion properties in dentinal tubules. Specifically, provided is an oral composition containing hydroxyapatite particles, wherein the hydroxyapatite particles have a ratio of a diffraction peak intensity around 2?=32° to a diffraction peak intensity around 2?=26° of 0.8 to 1.6 in an x-ray powder diffraction pattern as measured with CuK? characteristic X-rays.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: September 19, 2023
    Assignee: SUNSTAR SUISSE SA
    Inventors: Taku Ideue, Akihiko Komine, Ryotaro Nishioka, Shuhei Ishii
  • COMPOSITION FOR ORAL CAVITY
    Publication number: 20220071853
    Abstract: Provided is an oral composition containing particles that have properties to seal dentinal tubules and excellent adhesion properties in dentinal tubules. Specifically, provided is an oral composition containing hydroxyapatite particles, wherein the hydroxyapatite particles have a ratio of a diffraction peak intensity around 2?=32° to a diffraction peak intensity around 2?=26° of 0.8 to 1.6 in an x-ray powder diffraction pattern as measured with CuK? characteristic X-rays.
    Type: Application
    Filed: December 27, 2019
    Publication date: March 10, 2022
    Applicant: SUNSTAR SUISSE SA
    Inventors: Taku IDEUE, Akihiko KOMINE, Ryotaro NISHIOKA, Shuhei ISHII