Patents by Inventor Yuta KANAZAWA

Yuta KANAZAWA 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).

  • Grease base oil and grease composition containing said grease base oil
    Patent number: 11441091
    Abstract: A grease base oil, containing: condensation esters of alcohols (A) and carboxylic acids (B), wherein the alcohols (A) include a polyhydric alcohol represented by General Formula (1), the carboxylic acids (B) include a fatty acid having 5 to 9 carbon atoms (B-1), a branched fatty acid having 15 to 20 carbon atoms (B-2), a cycloalkane monocarboxylic acid having 4 to 8 carbon atoms (B-3), and an aromatic carboxylic acid (B-4), and the carboxylic acids (B) have a percentage of (B-1) above of 30 mol % to 50 mol %, a percentage of (B-2) above of 30 mol % to 50 mol %, a percentage of (B-3) above of 10 mol % to 30 mol %, and a percentage of (B-4) above of 1 mol % to 15 mol %. The grease base oil contains condensation esters having heat resistance and low temperature storageability.
    Type: Grant
    Filed: January 30, 2020
    Date of Patent: September 13, 2022
    Assignees: KYODO YUSHI CO., LTD., KAO CORPORATION
    Inventors: Tatsuya Miyazaki, Yuta Kanazawa, Tomonobu Komoriya, Hiroyuki Ishikawa, Yuta Sato
  • GREASE BASE OIL AND GREASE COMPOSITION CONTAINING SAID GREASE BASE OIL
    Publication number: 20220064559
    Abstract: A grease base oil, containing: condensation esters of alcohols (A) and carboxylic acids (B), wherein the alcohols (A) include a polyhydric alcohol represented by General Formula (1), the carboxylic acids (B) include a fatty acid having 5 to 9 carbon atoms (B-1), a branched fatty acid having 15 to 20 carbon atoms (B-2), a cycloalkane monocarboxylic acid having 4 to 8 carbon atoms (B-3), and an aromatic carboxylic acid (B-4), and the carboxylic acids (B) have a percentage of (B-1) above of 30 mol % to 50 mol %, a percentage of (B-2) above of 30 mol % to 50 mol %, a percentage of (B-3) above of 10 mol % to 30 mol %, and a percentage of (B-4) above of 1 mol % to 15 mol %. The grease base oil contains condensation esters having heat resistance and low temperature storageability.
    Type: Application
    Filed: January 30, 2020
    Publication date: March 3, 2022
    Applicants: KAO CORPORATION, KYODO YUSHI CO., LTD.
    Inventors: Tatsuya MIYAZAKI, Yuta KANAZAWA, Tomonobu KOMORIYA, Hiroyuki ISHIKAWA, Yuta SATO