Patents by Inventor Mitsugu Tsuchiya

Mitsugu Tsuchiya 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: 6447272
    Abstract: In a blower in which an impeller (8), a motor yoke (11) and the like are attached to a shaft which is supported by bearings (4), (5), and a stator core (16) is arranged inside of the motor yoke (11), an annular groove (19) is provided at one end portion of the shaft (6) around its periphery and a central portion of the motor yoke (11) that is formed in a cup-shape is press-fitted and fixed to the annular groove (19). Since a zinc die-cast-made boss that has been conventionally needed may be dispensed with, the structure may be simplified and the assembling work may be performed without fail.
    Type: Grant
    Filed: December 1, 2000
    Date of Patent: September 10, 2002
    Assignee: Minebea Co., Ltd.
    Inventor: Mitsugu Tsuchiya
  • Publication number: 20010006598
    Abstract: In a blower in which an impeller (8), a motor yoke (11) and the like are attached to a shaft which is supported by bearings (4), (5), and a stator core (16) is arranged inside of the motor yoke (11), an annular groove (19) is provided at one end portion of the shaft (6) around its periphery and a central portion of the motor yoke (11) that is formed in a cup-shape is press-fitted and fixed to the annular groove (19). Since a zinc die-cast-made boss that has been conventionally needed may be dispensed with, the structure may be simplified and the assembling work may be performed without fail.
    Type: Application
    Filed: December 1, 2000
    Publication date: July 5, 2001
    Applicant: MINEBEA CO., LTD.
    Inventor: Mitsugu Tsuchiya