Patents by Inventor Moto Yamashita

Moto Yamashita 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).

  • Electronic timepiece
    Patent number: 9010997
    Abstract: Lubricating apparatuses (10, 20, 30, 40) that support the axes of a stator guide (70) and a rotor (50) fit into an opening of a stator (60) are separate components and by fitting the stator guide (70) and lubricating apparatuses (10, 20, 30, 40) into the cylindrically shaped opening of a constant diameter disposed in a bottom plate (80), a bearing can be configured that aligns the central axis of the opening of the stator (60) and the rotational axis of the rotor (50) with high precision. Additionally, the structure of the lubricating apparatus (10, 20, 30, 40) is simplified and configures an electronic timepiece that can use the bearing-less stator (60).
    Type: Grant
    Filed: March 14, 2011
    Date of Patent: April 21, 2015
    Assignees: Citizen Holdings Co., Ltd., Citizen Watch Co., Ltd.
    Inventors: Tatsuo Sumida, Moto Yamashita
  • ELECTRONIC TIMEPIECE
    Publication number: 20120300597
    Abstract: Lubricating apparatuses (10, 20, 30, 40) that support the axes of a stator guide (70) and a rotor (50) fit into an opening of a stator (60) are separate components and by fitting the stator guide (70) and lubricating apparatuses (10, 20, 30, 40) into the cylindrically shaped opening of a constant diameter disposed in a bottom plate (80), a bearing can be configured that aligns the central axis of the opening of the stator (60) and the rotational axis of the rotor (50) with high precision. Additionally, the structure of the lubricating apparatus (10, 20, 30, 40) is simplified and configures an electronic timepiece that can use the bearing-less stator (60).
    Type: Application
    Filed: March 14, 2011
    Publication date: November 29, 2012
    Inventors: Tatsuo Sumida, Moto Yamashita
  • Radio-controlled timepiece
    Patent number: 8295128
    Abstract: A radio-controlled timepiece includes an antenna receiving a standard radio wave and a plurality of motors driving indicator portions which indicate information. A fourth motor which is driven at a lowest frequency during the standard radio wave reception of the antenna is disposed closer to the antenna than the rest of the motors.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: October 23, 2012
    Assignee: Citizen Holdings Co., Ltd.
    Inventors: Takayuki Hasumi, Moto Yamashita
  • RADIO-CONTROLLED TIMEPIECE
    Publication number: 20100074059
    Abstract: The radio-controlled timepiece is configured to include an antenna receiving a standard radio wave and a plurality of motors driving indicator portions which indicate information. A fourth motor which is driven at a lowest frequency during the standard radio wave reception of the antenna is disposed closer to the antenna than the rest of the motors.
    Type: Application
    Filed: February 19, 2008
    Publication date: March 25, 2010
    Inventors: Takayuki Hasumi, Moto Yamashita