Patents Assigned to Violet Co., Ltd.
  • Patent number: 5000863
    Abstract: A lubrication boosting additive comprising a mixture of an organic titanium compound soluble in a solvent, an organic solvent for the organic titanium compound, and a phthalic ester. The additive is used in combination with lubricating oils to improve load bearing capacity and wear resistance. When added to lubricating oil, the additive is used in an amount of from 0.1 to 10 g, calculated as the organic titanium compound, per liter of the lubricating oil.
    Type: Grant
    Filed: July 14, 1989
    Date of Patent: March 19, 1991
    Assignees: Violet Co., Ltd., Wako Technical Co., Ltd.
    Inventor: Ryoji Watanabe
  • Patent number: 4826614
    Abstract: A lubrication boosting additive comprising a mixture of a fluororesin, which is an alternating copolymer of a fluoroolefin and vinyl ether, soluble in an organic solvent and a phthalic ester in an organic solvent. The amounts of the organic solvent and the phthalic acid are, respectively, from 50 to 500 parts by weight and from 1 to 50 parts by weight per 100 parts by weight of the fluororesin. The additive is added to lubricating oils in an amount of from 0.1 to 10 g, calculated as the fluororesin, per liter of the lubricating oil.
    Type: Grant
    Filed: October 17, 1986
    Date of Patent: May 2, 1989
    Assignees: Violet Co., Ltd., Wako Technical Co., Ltd., both of
    Inventor: Ryoji Watanabe