Patents by Inventor Akitoshi Maeno

Akitoshi Maeno 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).

  • Patent number: 9496762
    Abstract: A motor includes a casing which is a resin molded article produced by using a core-back, a plurality of teeth, an insulator, a coil, a metal terminal, and a protection member as inserts. The protection member includes a cover section through which the metal terminal penetrates in the axial direction. The protection member or the insulator includes a post section arranged to axially extend in a portion of a surrounding of the metal terminal. A connection space within which a connection point of the metal terminal and the lead wire is disposed is provided between the cover section and the insulator and at the side of the metal terminal from the post section. The lead wire is arranged to reach the connection space through an opening arranged in the post section.
    Type: Grant
    Filed: February 5, 2014
    Date of Patent: November 15, 2016
    Assignee: NIDEC TECHNO MOTOR CORPORATION
    Inventors: Masataka Miyamoto, Masayuki Ishikawa, Akitoshi Maeno, Takenori Kawashima
  • Publication number: 20140232212
    Abstract: A motor includes a casing which is a resin molded article produced by using a core-back, a plurality of teeth, an insulator, a coil, a metal terminal, and a protection member as inserts. The protection member includes a cover section through which the metal terminal penetrates in the axial direction. The protection member or the insulator includes a post section arranged to axially extend in a portion of a surrounding of the metal terminal. A connection space within which a connection point of the metal terminal and the lead wire is disposed is provided between the cover section and the insulator and at the side of the metal terminal from the post section. The lead wire is arranged to reach the connection space through an opening arranged in the post section.
    Type: Application
    Filed: February 5, 2014
    Publication date: August 21, 2014
    Applicant: NIDEC TECHNO MOTOR CORPORATION
    Inventors: Masataka MIYAMOTO, Masayuki ISHIKAWA, Akitoshi MAENO, Takenori KAWASHIMA
  • Patent number: 8803374
    Abstract: A molded motor includes a stator, a resin casing, a rotor, a pair of bearings, a pair of bearing retainers, a resin bracket cover, and a control board. The rotor includes a shaft. The bearings are arranged to rotatably support the shaft. The bearing retainers are made of an elastic electrically insulating body. The bearing retainers are arranged to cover the bearings at radial outer sides of the bearings and to hold the bearings in place. The bracket cover is arranged to cover the open side of the casing. One of the bearings is attached to the bracket cover through one of the bearing retainers. The other bearing is attached to a bottom wall portion of the casing through the other bearing retainer.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: August 12, 2014
    Assignee: Nidec Techno Motor Holdings Corporation
    Inventors: Hiroshi Yoshida, Akitoshi Maeno, Junichi Sato, Tatsuya Yoshida
  • Publication number: 20120326538
    Abstract: A molded motor includes a stator, a resin casing, a rotor, a pair of bearings, a pair of bearing retainers, a resin bracket cover, and a control board. The rotor includes a shaft. The bearings are arranged to rotatably support the shaft. The bearing retainers are made of an elastic electrically insulating body. The bearing retainers are arranged to cover the bearings at radial outer sides of the bearings and to hold the bearings in place. The bracket cover is arranged to cover the open side of the casing. One of the bearings is attached to the bracket cover through one of the bearing retainers. The other bearing is attached to a bottom wall portion of the casing through the other bearing retainer.
    Type: Application
    Filed: December 22, 2011
    Publication date: December 27, 2012
    Applicant: NIDEC TECHNO MOTOR HOLDINGS CORPORATION
    Inventors: Hiroshi YOSHIDA, Akitoshi MAENO, Junichi SATO, Tatsuya YOSHIDA
  • Patent number: 7667357
    Abstract: A motor includes a shaft including upper and lower shaft members spaced axially away from each other. A shaft connecting member made of electrically insulating material is arranged axially between the upper and lower shaft members. The shaft connecting member is provided with fitting portions to which the upper and lower shaft members are to be fitted. While the upper and lower shaft members are secured to the shaft connecting member, the rotor magnet is integrally formed with the upper and lower shaft members and the shaft connecting member. With this configuration, an axial electric current is prevented from flowing through the shaft by the shaft connecting member.
    Type: Grant
    Filed: May 30, 2007
    Date of Patent: February 23, 2010
    Assignee: Nidec Shibaura Corporation
    Inventors: Takeshi Okada, Akitoshi Maeno
  • Publication number: 20070290570
    Abstract: A motor includes a shaft including upper and lower shaft members spaced axially away from each other. A shaft connecting member made of electrically insulating material is arranged axially between the upper and lower shaft members. The shaft connecting member is provided with fitting portions to which the upper and lower shaft members are to be fitted. While the upper and lower shaft members are secured to the shaft connecting member, the rotor magnet is integrally formed with the upper and lower shaft members and the shaft connecting member. With this configuration, an axial electric current is prevented from flowing through the shaft by the shaft connecting member.
    Type: Application
    Filed: May 30, 2007
    Publication date: December 20, 2007
    Applicant: NIDEC SHIBAURA CORPORATION
    Inventors: Takeshi Okada, Akitoshi Maeno