Patents by Inventor Katsumi Umehara

Katsumi Umehara 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).

  • Publication number: 20140187455
    Abstract: Disclosed is an ultra-low SAPS lubricating oil composition comprising: an oil of lubricating viscosity; an aromatic dicarboxylic acid treated dispersant supplying at least 0.30 wt % of the aromatic dicarboxylic acid to said lubricating oil composition; an ashless peroxide decomposer present at a treat rate of from about 0.4 to 5.0 wt %; a metal deactivator wherein the metal deactivator is present at a treat rate of greater than 0.08 wt %; wherein said lubricating oil composition contains less than 1000 ppm sulfur, less than 300 ppm phosphorus and less than 0.25 wt % sulfated ash.
    Type: Application
    Filed: December 28, 2012
    Publication date: July 3, 2014
    Applicant: Chevron Oronite LLC
    Inventors: Katsumi Umehara, Willem Van Dam
  • Publication number: 20140187453
    Abstract: Disclosed is an ultra-low SAPS lubricating oil composition comprising: an oil of lubricating viscosity; a borated dispersant supplying at least 500 ppm boron to said lubricating oil composition; an ashless peroxide decomposer present at a treat rate of from about 0.4 to 5.0 wt %; a metal deactivator wherein the metal deactivator is present at a treat rate of greater than 0.08 wt %; wherein said lubricating oil composition contains less than 1000 ppm sulfur, less than 300 ppm phosphorus and less than 0.25 wt % sulfated ash.
    Type: Application
    Filed: December 28, 2012
    Publication date: July 3, 2014
    Applicant: Chevron Oronite LLC
    Inventors: Katsumi Umehara, Willem Van Dam
  • Patent number: 8388704
    Abstract: A fuel additive composition containing an alkylene-oxide-adducted hydrocarbyl amide and a friction modifier is disclosed. The alkylene-oxide-adducted hydrocarbyl amide and friction modifier are surprisingly useful for improving the acceleration response and the driving performance of vehicles having internal combustion engines when used as fuel additives in hydrocarbon-based fuels, such as gasoline fuel or diesel fuel.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: March 5, 2013
    Assignee: Chevron Texaco Japan Limited
    Inventors: Hiroshi Watanabe, Satoshi Ohta, Katsumi Umehara
  • Patent number: 7438731
    Abstract: A fuel additive composition containing at least one amide compound selected from the group consisting of a fatty acid alkanol amide and a hydrocarbyl amide, a polyalkylene-oxide, and a friction modifier. The fuel additive composition is surprisingly useful for improving the acceleration response and the driving performance of vehicles having internal combustion engines when used as fuel additives in hydrocarbon-based fuels, such as gasoline fuel or diesel fuel.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: October 21, 2008
    Assignee: ChevronTexaco Japan Limited
    Inventors: Hiroshi Watanabe, Satoshi Ohta, Katsumi Umehara
  • Publication number: 20040154217
    Abstract: A fuel additive composition containing an alkylene-oxide-adducted hydrocarbyl amide and a friction modifier is disclosed. The alkylene-oxide-adducted hydrocarbyl amide and friction modifier are surprisingly useful for improving the acceleration response and the driving performance of vehicles having internal combustion engines when used as fuel additives in hydrocarbon-based fuels, such as gasoline fuel or diesel fuel.
    Type: Application
    Filed: December 19, 2003
    Publication date: August 12, 2004
    Applicant: ChevronTexaco Japan Ltd.
    Inventors: Hiroshi Watanabe, Satoshi Ohta, Katsumi Umehara
  • Publication number: 20040154218
    Abstract: A fuel additive composition containing at least one amide compound selected from the group consisting of a fatty acid alkanol amide and a hydrocarbyl amide, and a polyalkylene-oxide. The fuel additive composition is surprisingly useful for improving the acceleration response and the driving performance of vehicles having internal combustion engines when used as fuel additives in hydrocarbon-based fuels, such as gasoline fuel or diesel fuel.
    Type: Application
    Filed: December 19, 2003
    Publication date: August 12, 2004
    Applicant: Chevron Texaco Japan Ltd.
    Inventors: Hiroshi Watanabe, Satoshi Ohta, Katsumi Umehara
  • Publication number: 20020010103
    Abstract: The present invention relates to a lubricating oil composition for use in industrial oils such as hydraulic oils, bearing oils, industrial gear oils and sliding surface lubricating oils.
    Type: Application
    Filed: March 29, 2001
    Publication date: January 24, 2002
    Inventors: Himiko Takayama, Katsumi Umehara