Patents by Inventor Yuji KOMURO

Yuji KOMURO 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).

  • METHOD FOR PRODUCING ALPHA-OLEFIN OLIGOMER COMPOSITION
    Publication number: 20240308936
    Abstract: A method for producing an ?-olefin oligomer composition includes: an oligomerization step A1 of oligomerizing an ?-olefin with a metallocene catalyst to obtain an oligomer (a); a distillation separation step A2 of distilling and separating the oligomer (a) to obtain a high molecular weight fraction (a1) and a low molecular weight fraction (a2); an oligomerization step B1 of oligomerizing an ?-olefin oligomer containing the low molecular weight fraction (a2) with an acid catalyst to obtain an oligomer (b); and a mixing step C of mixing a portion of the oligomer (a) or a hydrogenated product thereof and a portion or a whole of the oligomer (b), an isomer thereof, or a hydrogenated isomer thereof.
    Type: Application
    Filed: August 4, 2022
    Publication date: September 19, 2024
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Kouta OBA, Narinobu KAGAMI, Mio ISAJI, Naoyuki UEDA, Takahiro SAKAGUCHI, Kiyokazu KATAYAMA, Kiyohiko YOKOTA, Yuji KOMURO, Kanako SAMEJIMA, Michika TOKUNAGA
  • LUBRICANT COMPOSITION
    Publication number: 20240218283
    Abstract: A lubricating oil composition containing a poly-?-olefin and an antioxidant, in which an evaporation loss by the Noack method is 4.9% by mass or less, a kinematic viscosity at 100° C. is 6.5 mm2/sec or less, and an amount of the antioxidant with respect to the poly-?-olefin is 0.05% by mass or more.
    Type: Application
    Filed: April 19, 2022
    Publication date: July 4, 2024
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Yuji KOMURO, Kiyohiko YOKOTA, Kiyokazu KATAYAMA