Patents by Inventor Shinji Tsukada

Shinji Tsukada 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).

  • CATALYST CONTAINING ACTIVATED CARBON ADSORBED WITH RUTHENIUM COMPLEX, AND METHOD FOR PRODUCING REDUCTION PRODUCT USING SAME
    Publication number: 20230285945
    Abstract: A catalyst exhibiting high reusability and capable of reducing the amount of residual metals in a reaction liquid in a process wherein an optically active reduction product is produced by an asymmetric reduction reaction of an organic compound is disclosed.
    Type: Application
    Filed: March 2, 2021
    Publication date: September 14, 2023
    Applicants: TAKASAGO INTERNATIONAL CORPORATION, OSAKA GAS CHEMICALS CO., LTD.
    Inventors: Naota YOKOYAMA, Shinji TSUKADA, Takefumi CHISHIRO, Yusuke MIYAJI
  • Spindle motor having temperature compensation member encircling hub body around bearing
    Patent number: 6330126
    Abstract: The spindle motor comprises a stationary axis fixed to a housing of a recording disk apparatus, and a hub body supported around the stationary axis by upper and lower ball bearings for rotation. A member serves to at least partly surround the hub body around the upper and lower ball bearings. Thermal expansion of the hub body may be suppressed by the member having a thermal expansion coefficient smaller than that of the hub body.
    Type: Grant
    Filed: September 29, 1998
    Date of Patent: December 11, 2001
    Assignee: Fujitsu Limited
    Inventors: Hirokazu Ishizaki, Shinji Tsukada