Patents by Inventor Katsuo Tazawa

Katsuo Tazawa 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).

  • Fan assembly
    Patent number: 7775767
    Abstract: A fan assembly includes a plurality of rotor vanes, a motor rotating the rotor vanes with a center axis J1 as center, a plurality of stator vanes arranged in a passage of air flow generated by rotation of the rotor vanes, and a base portion including a plate-like portion and side circumferential wall. A radially inner end of the stator vane is connected to the side circumferential wall of the base portion, and a side opening is arranged in the side circumferential wall. The air flow generated by rotation of the rotor is guided along the stator vane and taken into the motor to cool of the heat generating source arranged therein.
    Type: Grant
    Filed: February 21, 2007
    Date of Patent: August 17, 2010
    Assignee: Nidec Corporation
    Inventors: Shinji Takemoto, Katsuo Tazawa, Kazushi Ishikawa, Akinori Yamamoto
  • Fan Assembly
    Publication number: 20070196208
    Abstract: A fan assembly includes a plurality of rotor vanes, a motor rotating the rotor vanes with a center axis J1 as center, a plurality of stator vanes arranged in a passage of air flow generated by rotation of the rotor vanes, and a base portion including a plate-like portion and side circumferential wall. A radially inner end of the stator vane is connected to the side circumferential wall of the base portion, and a side opening is arranged in the side circumferential wall. The air flow generated by rotation of the rotor is guided along the stator vane and taken into the motor to cool of the heat generating source arranged therein.
    Type: Application
    Filed: February 21, 2007
    Publication date: August 23, 2007
    Applicant: NIDEC CORPORATION
    Inventors: Shinji Takemoto, Katsuo Tazawa, Kazushi Ishikawa, Akinori Yamamoto
  • FAN
    Publication number: 20070099459
    Abstract: A fan includes a motor, an impeller mounted to the motor and generating air flow by rotation around a rotation axis thereof, and a housing defining a passage of the air flow and supporting the motor. A wire outlet opening is provided on the housing in a manner axially penetrating the housing, and a lead wire is inserted into the wire outlet opening. A lead wire holding member is inserted into the wire outlet opening into which the lead wire is inserted, the lead wire holding member elastically presses the lead wire to the housing, and a latching portion of the lead wire holding member is latched to a portion of the housing. Therefore, the lead wire holding member fits in the wire outlet opening while firmly holding the lead wire in the wire outlet opening.
    Type: Application
    Filed: October 30, 2006
    Publication date: May 3, 2007
    Applicant: NIDEC CORPORATION
    Inventors: Takaya OTSUKI, Takahiro KIKUICHI, Masayuki YAMADA, Toshikazu FUKUNAGA, Katsuo TAZAWA, Atsuo KONISHI, Mitsunobu NAKASE, Yusuke YOSHIDA