Patents by Inventor Boanerges THENDIE

Boanerges THENDIE 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).

  • Hexagonal boron nitride powder and method for producing the same, and composition and heat dissipation material using the same
    Patent number: 11078080
    Abstract: A hexagonal BN powder including aggregates of primary particles of hexagonal BN containing boron and oxygen as impurity elements at a content of 1.00 to 30.00% and 0 to 1.00% by mass, respectively, which has a peak A in a predetermined particle diameter range and a 50% volume cumulative particle diameter D50 (d1) of 30.0 to 200.0 ?l in a particle size distribution curve, and in which a ratio of a height (a1) of the peak A before treatment to a height (a2) of the peak A after treatment is 0.80 to 1.00 and a ratio of D50 (d1) before treatment to D50 (d2) after treatment is 0.80 to 1.00 when the hexagonal BN powder is ultrasonically treated under a predetermined condition for 1 minute. Also disclosed is a method for producing the hexagonal BN powder, a composition and a heat dissipation material.
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: August 3, 2021
    Assignee: SHOWA DENKO K.K.
    Inventors: Boanerges Thendie, Masaru Fukasawa
  • HEXAGONAL BORON NITRIDE POWDER AND METHOD FOR PRODUCING THE SAME, AND COMPOSITION AND HEAT DISSIPATION MATERIAL USING THE SAME
    Publication number: 20200277189
    Abstract: A hexagonal BN powder including aggregates of primary particles of hexagonal BN containing boron and oxygen as impurity elements at a content of 1.00 to 30.00% and 0 to 1.00% by mass, respectively, which has a peak A in a predetermined particle diameter range and a 50% volume cumulative particle diameter D50 (d1) of 30.0 to 200.0 ?l in a particle size distribution curve, and in which a ratio of a height (a1) of the peak A before treatment to a height (a2) of the peak A after treatment is 0.80 to 1.00 and a ratio of D50 (d1) before treatment to D50 (d2) after treatment is 0.80 to 1.00 when the hexagonal BN powder is ultrasonically treated under a predetermined condition for 1 minute. Also disclosed is a method for producing the hexagonal BN powder, a composition and a heat dissipation material.
    Type: Application
    Filed: June 12, 2019
    Publication date: September 3, 2020
    Applicant: SHOWA DENKO K.K.
    Inventors: Boanerges THENDIE, Masaru FUKASAWA