Patents by Inventor Masanori Watabe

Masanori Watabe 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).

  • Electric axial flow fan
    Patent number: 7946824
    Abstract: In an axial flow fan, a line extending from a center axis and passing a corner where a following edge and a radially outer edge of a blade of an impeller meet is arranged forwardly in a rotational direction from an another corner where a leading edge of the blade and a radially outer surface of a hub meet. Furthermore, a camber ratio of the blade, which is minimum at a joint with the hub across the blade, monotonically increases to be maximum at the radially outer edge of the blade.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: May 24, 2011
    Assignee: Nidec Servo Co., Ltd.
    Inventors: Taku Iwase, Masanori Watabe, Osamu Sekiguchi, Tetsuya Hioki, Taro Tanno, Motoi Jin, Yoshihiko Kato
  • ELECTRIC AXIAL FLOW FAN
    Publication number: 20080101964
    Abstract: In an axial flow fan, a line extending from a center axis and passing a corner where a following edge and a radially outer edge of a blade of an impeller meet is arranged forwardly in a rotational direction from an another corner where a leading edge of the blade and a radially outer surface of a hub meet. Furthermore, a camber ratio of the blade, which is minimum at a joint with the hub across the blade, monotonically increases to be maximum at the radially outer edge of the blade.
    Type: Application
    Filed: October 31, 2007
    Publication date: May 1, 2008
    Applicant: JAPAN SERVO CO., LTD.
    Inventors: Taku IWASE, Masanori WATABE, Osamu SEKIGUCHI, Tetsuya HIOKI, Taro TANNO, Motoi JIN, Yoshihiko KATO