Patents by Inventor Meguru Sugiyama

Meguru Sugiyama 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).

  • FLUID DYNAMIC BEARING LUBRICATING OIL BASE OIL, FLUID DYNAMIC BEARING LUBRICATING OIL, FLUID DYNAMIC BEARING, MOTOR, AND FAN MOTOR
    Publication number: 20220333030
    Abstract: To provide a fluid dynamic bearing lubricating oil base oil which is within a suitable 40° C. and 100° C. kinematic viscosity range capable of achieving both energy saving and high bearing rigidity, and is excellent in viscosity index, heat resistance (evaporation resistance), and low temperature fluidity. Provided is a fluid dynamic bearing lubricating oil base oil containing a trimellitic acid triester compound represented by the following general formula (1) wherein R1 to R3 are the same or different and each represent a linear alkyl group having 6 to 10 carbon atoms.
    Type: Application
    Filed: April 19, 2022
    Publication date: October 20, 2022
    Inventors: Meguru SUGIYAMA, Akane KATO, Akinobu TAKEGAMI, Yuki KAWAHARA, Naoko KASHIWA
  • FLUID DYNAMIC BEARING LUBRICATING OIL BASE OIL, FLUID DYNAMIC BEARING LUBRICATING OIL, FLUID DYNAMIC BEARING, MOTOR, AND FAN MOTOR
    Publication number: 20220333031
    Abstract: To provide a fluid dynamic bearing lubricating oil base oil which is within a suitable 40° C. and 100° C. kinematic viscosity range capable of achieving both energy saving and high bearing rigidity, and is excellent in viscosity index, heat resistance (evaporation resistance), and low temperature fluidity. Provided is a fluid dynamic bearing lubricating oil base oil containing an isophthalic acid diester compound represented by the following general formula (1) wherein R1 and R2 are the same or different and each represent a linear alkyl group having 6 to 10 carbon atoms.
    Type: Application
    Filed: April 19, 2022
    Publication date: October 20, 2022
    Inventors: Meguru SUGIYAMA, Akane KATO, Akinobu TAKEGAMI, Yuki KAWAHARA, Naoko KASHIWA
  • Lubricating base oil for fluid dynamic bearing
    Patent number: 11421171
    Abstract: An object of the present invention is to provide an ester-based lubricating base oil for a fluid bearing that has a high viscosity index and excellent evaporation resistance, hydrolytic stability, and low-temperature fluidity. The present invention relates to a lubricating base oil for a fluid bearing containing a compound represented by general formula (1): wherein R1 represents a linear C2-C16 alkyl group, m represents an integer of 2 to 10, and n represents an integer of 4 to 14.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: August 23, 2022
    Assignee: NEW JAPAN CHEMICAL CO., LTD.
    Inventors: Yumi Mandai, Hirotsugu Mochida, Meguru Sugiyama
  • LUBRICATING BASE OIL FOR FLUID DYNAMIC BEARING
    Publication number: 20220056363
    Abstract: An object of the present invention is to provide an ester-based lubricating base oil for a fluid bearing that has a high viscosity index and excellent evaporation resistance, hydrolytic stability, and low-temperature fluidity. The present invention relates to a lubricating base oil for a fluid bearing containing a compound represented by general formula (1): wherein R1 represents a linear C2-C16 alkyl group, m represents an integer of 2 to 10, and n represents an integer of 4 to 14.
    Type: Application
    Filed: December 17, 2019
    Publication date: February 24, 2022
    Applicant: NEW JAPAN CHEMICAL CO., LTD.
    Inventors: Yumi Mandai, Hirotsugu Mochida, Meguru Sugiyama