Patents by Inventor Takayuki Imazu

Takayuki Imazu 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).

  • Publication number: 20200294700
    Abstract: A transformer includes a transformer body, a tank, a conservator, a plurality of support fittings, and at least one mounting seat. Transformer body includes an iron core and a winding. Tank includes an upper tank, a middle tank, and a lower tank that are bonded together to form an internal space accommodating transformer body. Conservator is arranged at a position above tank. The plurality of support fittings are arranged side by side at intervals to support conservator. At least one mounting seat is bonded to both a peripheral wall of upper tank and a peripheral wall of middle tank, and fixed to tank, and the plurality of support fittings are attached.
    Type: Application
    Filed: January 17, 2018
    Publication date: September 17, 2020
    Applicant: Mitsubishi Electric Corporation
    Inventors: Takayuki IMAZU, Keita TONOIKE, Katsutoshi OKADA, Hiroshi KINOSHITA, Yoshinobu KITAGAWA
  • Patent number: 6171417
    Abstract: There is provided a property recovering method which can be applied to a high-temperature member whose properties such as strength and ductility have been deteriorated by the long-term use at a high temperature to recover its properties to those before the use, enable its reuse, and contribute to the effective use of resources and the conservation of environment. A Ni-base heat resistant alloy having a particular composition, whose properties have been deteriorated by heat history, is subjected to first-stage solution treatment, in which the alloy is held at a temperature of 1175 to 1225° C. for 1 to 5 hours and then furnace-cooled, then subjected to second-stage solution treatment, in which the alloy is held at a temperature of 1115 to 1165° C. for 1 to 5 hours and then air-cooled, and further subjected to aging treatment, in which the alloy is held at a temperature of 810 to 860° C. for 22 to 26 hours.
    Type: Grant
    Filed: February 19, 1999
    Date of Patent: January 9, 2001
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Hisataka Kawai, Yoshinao Hibaru, Ikuo Okada, Takayuki Imazu