Patents by Inventor Jusei MAEDA

Jusei MAEDA 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 composition
    Patent number: 11697786
    Abstract: An object of the present invention is to provide a grease composition which has little influence on the environment and has good rust prevention and water resistance against salt water such as sea water. The grease composition comprises a biodegradable base oil and a rust-preventive agent comprising a calcium sulfonate complex and a sorbitan fatty acid ester, wherein a total content of biodegradable organic substances in the grease composition is 75% by mass or more, and wherein a content of the rust-preventive agent is 2.5 to 30% by mass.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: July 11, 2023
    Assignee: NIPPON GREASE CO., LTD.
    Inventors: Satoshi Doi, Akihiro Yamamoto, Jusei Maeda
  • GREASE COMPOSITION
    Publication number: 20210040413
    Abstract: An object of the present invention is to provide a grease composition which has little influence on the environment and has good rust prevention and water resistance against salt water such as sea water. The grease composition comprises a biodegradable base oil and a rust-preventive agent comprising a calcium sulfonate complex and a sorbitan fatty acid ester, wherein a total content of biodegradable organic substances in the grease composition is 75% by mass or more, and wherein a content of the rust-preventive agent is 2.5 to 30% by mass.
    Type: Application
    Filed: March 5, 2019
    Publication date: February 11, 2021
    Applicant: NIPPON GREASE CO., LTD.
    Inventors: Satoshi DOI, Akihiro YAMAMOTO, Jusei MAEDA