Patents by Inventor Taku Ohi

Taku Ohi 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: 6000096
    Abstract: Parallel tube type, gasoline powered, blower/vacuums with improved versatility are provided. In one possible feature, a flapper throttle adjacent to the housing for controlling the engine is pivotable from side-to-side with respect to an elongate handle. The elongate handle is sufficiently long to allow a plurality of gripping positions, while the flapper throttle is sufficiently long to allow the operator to access the flapper throttle from different gripping positions on the handle. In another possible feature, a pivotable lever throttle is provided at an interface of the handle forward portion and a transverse grip portion at the handle forward portion end. The lever throttle has a first end accessible to the operator when gripping the transverse grip portion, and a second end accessible to the operator when gripping the handle forward portion.
    Type: Grant
    Filed: July 23, 1998
    Date of Patent: December 14, 1999
    Assignee: Ryobi North America, Inc.
    Inventors: Robert G. Everts, Kenneth M. Brazell, Raul Vidal, Jack B. Sing, Taku Ohi, Harold J. Coleman
  • Patent number: 5768749
    Abstract: A blower is provided having a plurality of tubular nozzles removably attachable to the blower enabling an operator to easily vary the velocity and air discharge pattern. The blower forms part of an operator carried power tool having a drive motor spaced from the blower assembly by a tubular boom containing a drive shaft. The blower comprises a blower housing having an axial air inlet and an air outlet defined by a tubular section. An impeller is pivotally mounted within the blower housing and driven by the drive shaft. As the impeller is rotated, air is drawn through the air inlet and discharged through one of a plurality of tubular nozzles mounted on the blower housing tubular section. Tubular nozzles have varying geometries to conveniently vary the discharge air pattern.
    Type: Grant
    Filed: July 26, 1996
    Date of Patent: June 23, 1998
    Assignee: Ryobi North America, Inc.
    Inventors: Taku Ohi, Kenneth M. Brazell, Naoki Kikuchi
  • Patent number: D347460
    Type: Grant
    Filed: June 19, 1992
    Date of Patent: May 31, 1994
    Assignee: Ryobi Ltd.
    Inventor: Taku Ohi
  • Patent number: D389707
    Type: Grant
    Filed: July 26, 1996
    Date of Patent: January 27, 1998
    Assignee: Ryobi North America
    Inventors: Taku Ohi, Kenneth M. Brazell, Naoki Kikuchi
  • Patent number: D393506
    Type: Grant
    Filed: July 26, 1996
    Date of Patent: April 14, 1998
    Assignee: Ryobi North America
    Inventors: Taku Ohi, Kenneth M. Brazell, Naoki Kikuchi
  • Patent number: D414499
    Type: Grant
    Filed: July 21, 1998
    Date of Patent: September 28, 1999
    Assignee: Ryobi North America, Inc.
    Inventors: Taku Ohi, Kenneth J. Weger, Kenneth M. Brazell
  • Patent number: D416360
    Type: Grant
    Filed: December 27, 1996
    Date of Patent: November 9, 1999
    Assignee: Ryobi Ltd.
    Inventors: Hirofumi Enkyo, Taku Ohi
  • Patent number: D417044
    Type: Grant
    Filed: February 16, 1998
    Date of Patent: November 23, 1999
    Assignee: Ryobi North America, Inc.
    Inventors: Taku Ohi, Kenneth M. Brazell, Naoki Kikuchi
  • Patent number: D426354
    Type: Grant
    Filed: July 21, 1998
    Date of Patent: June 6, 2000
    Assignee: Ryobi North America, Inc.
    Inventors: Taku Ohi, Kenneth M. Brazell, Jack B. Sing
  • Patent number: D428320
    Type: Grant
    Filed: September 14, 1999
    Date of Patent: July 18, 2000
    Assignee: Ryobi North America, Inc.
    Inventors: Taku Ohi, Kenneth M. Brazell