Patents by Inventor Kenji Masegi

Kenji Masegi 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).

  • Splined annular member and automatic transmission
    Patent number: 6868950
    Abstract: A splined annular member has spline teeth formed in its cylindrical wall. The teeth are formed as an arrangement of alternating ridges which protrude inwardly and troughs formed between the ridges. Each ridge has a transverse (circumferential) groove that extends outwardly. The groove is defined by two side walls that face each other and a bottom portion extending between the side walls. The side walls are substantially parallel to each other, and at least one of the junctions between the bottom portion and the side walls is formed by half blanking. The spline grooves increase the overall rigidity of the annular member without increase in weight or size. Thus, the present invention provides a light-weight and small-size splined annular member having high rigidity and an automatic transmission incorporating the splined annular member.
    Type: Grant
    Filed: June 10, 2002
    Date of Patent: March 22, 2005
    Assignee: Aisin AW Co., Ltd.
    Inventor: Kenji Masegi
  • Splined annular member and automatic transmission
    Publication number: 20030006118
    Abstract: A splined annular member has spline teeth formed in its cylindrical wall. The teeth are formed as an arrangement of alternating ridges which protrude inwardly and troughs formed between the ridges. Each ridge has a transverse (circumferential) groove that extends outwardly. The groove is defined by two side walls that face each other and a bottom portion extending between the side walls. The side walls are substantially parallel to each other, and at least one of the junctions between the bottom portion and the side walls is formed by half blanking. The spline grooves increase the overall rigidity of the annular member without increase in weight or size. Thus, the present invention provides a light-weight and small-size splined annular member having high rigidity and an automatic transmission incorporating the splined annular member.
    Type: Application
    Filed: June 10, 2002
    Publication date: January 9, 2003
    Inventor: Kenji Masegi