Patents by Inventor Junsuke Haruna

Junsuke Haruna 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).

  • Lubricating oil compositions containing organo molybdenum composition
    Patent number: 6423671
    Abstract: Organo molybdenum containing oils of lubricating viscosity having improved high temperature frictional properties are made using semi-packages of additives. The semi-packages contain: (A) a dispersant, a zinc salt, and a detergent and (B) an organo molybdenum compound. The packages are formed individually prior to mixing.
    Type: Grant
    Filed: October 6, 1998
    Date of Patent: July 23, 2002
    Assignee: The Lubrizol Corporation
    Inventor: Junsuke Haruna
  • Method to improve Cu corrosion performance of Mo-DTC and active sulfur by adding sunflower oil
    Patent number: 6281174
    Abstract: Lubricating compositions are described which contain organomolybdenum compounds and sulfur compounds (donors). The copper corrosion of said compositions is reduced by reacting the sulfur donors with plant oils to reduce sulfur activity and thus copper corrosion prior to the sulfur donors being added to the majority of oil to form a lubricating composition.
    Type: Grant
    Filed: February 25, 1998
    Date of Patent: August 28, 2001
    Assignee: The Lubrizol Corporation
    Inventor: Junsuke Haruna