Patents by Inventor Osamu TAKEYA

Osamu TAKEYA 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).

  • Transformer for vacuum capacitor type instrument
    Patent number: 11342127
    Abstract: A vacuum-capacitor-type instrument voltage transformer (1) is equipped with a main capacitor (2) and an insulating tube (3) that accommodates the main capacitor (2). A voltage dividing capacitor (4) is connected to the main capacitor (2) in series. The main capacitor (2) is equipped with a plurality of vacuum capacitors (2a) to (2c) that are connected in series. A high-voltage-side electrode (6) is provided on a high-voltage side of the insulating tube (3), and a ground-side electrode (7) is provided on its low-voltage side. The high-voltage-side electrode (6) is equipped with a high-voltage shield (8). Electrostatic capacity of the vacuum capacitor (for example, the vacuum capacitor (2a)) disposed on the high-voltage side is set to be greater than electrostatic capacity of the vacuum capacitor (for example, the vacuum capacitor (2b)) disposed on the low-voltage side.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: May 24, 2022
    Assignee: MEIDENSHA CORPORATION
    Inventors: Osamu Takeya, Yoshiyuki Tanimizu, Toshimasa Fukai, Toshinori Tatsumi, Toru Tanimizu
  • TRANSFORMER FOR VACUUM CAPACITOR TYPE INSTRUMENT
    Publication number: 20200357572
    Abstract: A vacuum-capacitor-type instrument voltage transformer (1) is equipped with a main capacitor (2) and an insulating tube (3) that accommodates the main capacitor (2). A voltage dividing capacitor (4) is connected to the main capacitor (2) in series. The main capacitor (2) is equipped with a plurality of vacuum capacitors (2a) to (2c) that are connected in series. A high-voltage-side electrode (6) is provided on a high-voltage side of the insulating tube (3), and a ground-side electrode (7) is provided on its low-voltage side. The high-voltage-side electrode (6) is equipped with a high-voltage shield (8). Electrostatic capacity of the vacuum capacitor (for example, the vacuum capacitor (2a)) disposed on the high-voltage side is set to be greater than electrostatic capacity of the vacuum capacitor (for example, the vacuum capacitor (2b)) disposed on the low-voltage side.
    Type: Application
    Filed: October 16, 2018
    Publication date: November 12, 2020
    Applicant: MEIDENSHA CORPORATION
    Inventors: Osamu TAKEYA, Yoshiyuki TANIMIZU, Toshimasa FUKAI, Toshinori TATSUMI, Toru TANIMIZU