Patents by Inventor Kenzo Oba

Kenzo Oba 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).

  • Drugs for ameliorating postcibal hyperglycemia
    Patent number: 7879869
    Abstract: It is mentioned to provide drugs for ameliorating postcibal hyperglycemia, drugs for inhibiting an increase in blood glucose level and pharmaceutical compositions for preventing or treating diabetes, each containing a pharmaceutically acceptable anion exchange resin typified by colestimide. Thus, it becomes possible to provide drugs clearly exhibiting an effect of inhibiting an increase in postcibal blood glucose level.
    Type: Grant
    Filed: July 29, 2002
    Date of Patent: February 1, 2011
    Assignee: Mitsubishi Tanabe Pharma Corporation
    Inventor: Kenzo Oba
  • Relief valve
    Patent number: 6953054
    Abstract: A relief valve is provided with an elastic body seal sealed into an annular gap between a ball receiver and a valve hole, and is slidably in contact with an inner periphery of the valve hole such that the elastic body seal is not compressed in an axial direction of the ball receiver.
    Type: Grant
    Filed: December 4, 2003
    Date of Patent: October 11, 2005
    Assignee: Showa Corporation
    Inventors: Kenzo Oba, Takeshi Ueki, Morihito Ichizuki
  • Relief valve
    Publication number: 20050051218
    Abstract: A relief valve is provided with an elastic body seal sealed into an annular gap between a ball receiver and a valve hole, and is slidably in contact with an inner periphery of the valve hole such that the elastic body seal is not compressed in an axial direction of the ball receiver.
    Type: Application
    Filed: December 4, 2003
    Publication date: March 10, 2005
    Inventors: Kenzo Oba, Takeshi Ueki, Morihito Ichizuki
  • Drugs for ameliorating postcibal hyperglycemia
    Publication number: 20040191209
    Abstract: It is mentioned to provide drugs for ameliorating postcibal hyperglycemia, drugs for inhibiting an increase in blood glucose level and pharmaceutical compositions for preventing or treating diabetics each containing a pharmaceutically acceptable anion exchange resin typified by colestimide. Thus, it becomes possible to provide drugs clearly exhibiting an effect of inhibiting an increase in postcibal blood glucose level.
    Type: Application
    Filed: March 4, 2004
    Publication date: September 30, 2004
    Inventor: Kenzo Oba
  • Variable displacement pump
    Patent number: 6530752
    Abstract: In a variable displacement pump, a relief valve is constituted by a pilot drive type relief valve obtained by adding a pilot valve to a main valve, a fluid pressure in a downstream side of a metering orifice provided in a pump discharge side passage is applied to the pilot valve, and the main valve is capable of opening and closing a downstream side passage of the metering orifice with respect to a drain passage.
    Type: Grant
    Filed: April 16, 2001
    Date of Patent: March 11, 2003
    Assignee: Showa Corporation
    Inventors: Kenzo Oba, Katsuyuki Yoshida
  • Variable displacement pump
    Patent number: 6382925
    Abstract: In a variable displacement pump for a power steering device of a vehicle, the adapter ring is arranged to be easily engaged with the engagement hole at the pump casing, to improve ease of assembly. The relationship of the adapter ring with the engagement hole reduces vibration and noise.
    Type: Grant
    Filed: July 20, 2000
    Date of Patent: May 7, 2002
    Assignee: Showa Corporation
    Inventors: Kenzo Oba, Morihito Ichizuki, Kenji Saito
  • Variable displacement pump
    Publication number: 20010031204
    Abstract: In a variable displacement pump, a relief valve is constituted by a pilot drive type relief valve obtained by adding a pilot valve to a main valve, a fluid pressure in a downstream side of a metering orifice provided in a pump discharge side passage is applied to the pilot valve, and the main valve is capable of opening and closing a downstream side passage of the metering orifice with respect to a drain passage.
    Type: Application
    Filed: April 16, 2001
    Publication date: October 18, 2001
    Inventors: Kenzo Oba, Katsuyuki Yoshida