Patents by Inventor Morio Takada

Morio Takada 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).

  • Permanent magnet rotor for rotary electric machine
    Patent number: 10439458
    Abstract: The present invention comprises a permanent magnet (13) that is disposed around a rotor shaft (11), a retaining ring (14) that is press-fitted around the outside of the permanent magnet (13) from one end of the rotor shaft (11) so as to retain the permanent magnet (13) against the rotor shaft (11), and an end plate (12) that is provided adjacent to the permanent magnet (13) in the axial direction of the rotor shaft (11) and guides the press-fitted retaining ring (14), maintaining planar contact with the inner circumferential surface thereof, toward the permanent magnet (13) while causing the retaining ring (14) to expand as the retaining ring (14) progresses from one end of the rotor shaft (11) to the other end of the rotor shaft (11). Concentration of stress on the retaining ring (14) during press-fitting can thus be minimized.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: October 8, 2019
    Assignee: MEIDENSHA CORPORATION
    Inventors: Keisuke Matsuo, Takashi Okitsu, Mototsugu Omura, Morio Takada, Daiki Matsuhashi
  • PERMANENT MAGNET ROTOR FOR ROTARY ELECTRIC MACHINE
    Publication number: 20190115797
    Abstract: The present invention comprises a permanent magnet (13) that is disposed around a rotor shaft (11), a retaining ring (14) that is press-fitted around the outside of the permanent magnet (13) from one end of the rotor shaft (11) so as to retain the permanent magnet (13) against the rotor shaft (11), and an end plate (12) that is provided adjacent to the permanent magnet (13) in the axial direction of the rotor shaft (11) and guides the press-fitted retaining ring (14), maintaining planar contact with the inner circumferential surface thereof, toward the permanent magnet (13) while causing the retaining ring (14) to expand as the retaining ring (14) progresses from one end of the rotor shaft (11) to the other end of the rotor shaft (11). Concentration of stress on the retaining ring (14) during press-fitting can thus be minimized.
    Type: Application
    Filed: March 9, 2017
    Publication date: April 18, 2019
    Applicant: MEIDENSHA CORPORATION
    Inventors: Keisuke MATSUO, Takashi OKITSU, Mototsugu OMURA, Morio TAKADA, Daiki MATSUHASHI
  • Process for the continuous production of biodegradable polyester polymer
    Patent number: 5484882
    Abstract: The present invention provides a process for the continuous production of a biodegradable polyester polymer with an excellent quality useful in the field of medicine, coating material and packaging material by eliminating difficulty in uniform agitation and heat removal caused by the rise in the viscosity of reactants in the production of a high molecular biodegradable polyester polymer by ring-opening polymerization.
    Type: Grant
    Filed: July 8, 1994
    Date of Patent: January 16, 1996
    Assignee: Dainippon Ink and Chemicals, Inc.
    Inventors: Morio Takada, Yasutoshi Kakizawa