Patents by Inventor Takashi Aritake

Takashi Aritake 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).

  • Rejuvenation and/or extension of the lifetime of frictional performance in transmission fluids
    Patent number: 11441094
    Abstract: A booster additive concentrate may advantageously contain: (a) an anti-wear mixture of two or more phosphite/phosphate compounds and one or more ether/thioether compounds; (b) an ashless dispersant; (c) a calcium-containing detergent, such as an overbased calcium phenate; (d) ?2 friction modifiers, at least one of which comprises a polyalkylene polyamine succinimide derivative; (e) optionally a corrosion inhibitor; and (f) a lubricating oil basestock. Based on these additive components, the booster additive concentrate may exhibit specific contents of B/Ca/P and may contain minimal or substantially no additional antioxidants. Lubricant compositions can be made from the booster additive concentrates and a fresh/used lubricant oil composition “diluent,” which can rejuvenate the diluent. Such lubricant compositions can have advantageous anti-shudder durability (ASD) lifetimes and other frictional properties.
    Type: Grant
    Filed: October 2, 2020
    Date of Patent: September 13, 2022
    Assignees: JATCO LTD, INFINEUM INTERNATIONAL LIMITED
    Inventors: Takashi Aritake, Gou Katou, Hahn Soo Kim, Thomas Lin, Makoto Maeda, Yasuhiro Mogi, Hiroshi Morisato, Hirokazu Saito
  • REJUVENATION AND/OR EXTENSION OF THE LIFETIME OF FRICTIONAL PERFORMANCE IN TRANSMISSION FLUIDS
    Publication number: 20220106537
    Abstract: A booster additive concentrate may advantageously contain: (a) an anti-wear mixture of two or more phosphite/phosphate compounds and one or more ether/thioether compounds; (b) an ashless dispersant; (c) a calcium-containing detergent, such as an overbased calcium phenate; (d) ?2 friction modifiers, at least one of which comprises a polyalkylene polyamine succinimide derivative; (e) optionally a corrosion inhibitor; and (f) a lubricating oil basestock. Based on these additive components, the booster additive concentrate may exhibit specific contents of B/Ca/P and may contain minimal or substantially no additional antioxidants. Lubricant compositions can be made from the booster additive concentrates and a fresh/used lubricant oil composition “diluent,” which can rejuvenate the diluent. Such lubricant compositions can have advantageous anti-shudder durability (ASD) lifetimes and other frictional properties.
    Type: Application
    Filed: October 2, 2020
    Publication date: April 7, 2022
    Inventors: Takashi Aritake, Gou Katou, Hahn Soo Kim, Thomas Lin, Makoto Maeda, Yasuhiro Mogi, Hiroshi Morisato, Hirokazu Saito