Patents by Inventor Kiyotaka Ogata

Kiyotaka Ogata 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: 6497247
    Abstract: A pressure valve having a valve body inserted into a bore of a valve housing. The valve body on one end that has plunged into the valve housing has a valve seat face in contact with a movable valve member which can be seated by a restoring force and which is adjoined by a through conduit. The movable valve member penetrates the valve body, for the sake of simpler axial securing of the valve body in the valve housing and also for easier dismantling, the valve body is secured axially in the valve housing via a detent connection.
    Type: Grant
    Filed: July 7, 2000
    Date of Patent: December 24, 2002
    Assignee: Robert Bosch GmbH
    Inventors: Makoto Kinoshita, Kiyotaka Ogata
  • Publication number: 20020105973
    Abstract: A time slot synchronizer that includes a sampler, which is configured to successively sample a baseband signal. The baseband signal is divided into a number of frames, and each frame is divided into a plurality of symbols. The sampler divides each symbol into a plurality of sample bins and generates a first sample group from a first frame by sampling each symbol in the first frame. The sampler uses a predetermined first and second sample bin for sampling the first frame. Next, the sampler generates a second sample group from a second frame by sampling each symbol in the second frame in a third and fourth sample bin. The third and fourth sample bins, however, are shifted a certain number of sample bins relative to the first and second sample bins, respectively.
    Type: Application
    Filed: February 2, 2001
    Publication date: August 8, 2002
    Applicant: MITSUBISHI WIRELESS COMMUNICATIONS, INC
    Inventors: Shuzo Kato, Kiyotaka Ogata
  • Publication number: 20020072346
    Abstract: A predetermined error vector magnitude reduction circuit exploits scatter patterns that develop at the output of modem wireless communication systems during phase state transition. Digital inphase and quadrature input signals to the circuit, typically from a baseband processor, are compared to known characteristic bit patterns that are pre-stored in a lookup table. Modified data that correspond to the known characteristic bit patterns is supplied to the circuit to replace the data signals themselves. The modified data may be digital data that replaces the digital signals at the input to the inphase and quadrature DACs, or analog data that replaces the analog output of the DACs.
    Type: Application
    Filed: December 12, 2000
    Publication date: June 13, 2002
    Applicant: MITSUBISHI WIRELESS COMMUNICATIONS, INC.
    Inventors: Shuzo Kato, Kiyotaka Ogata
  • Patent number: 6283094
    Abstract: A pressure valve for installation in a feed line between a fuel injection pump and an injection site of an internal combustion engine to be supplied. The valve has at least one movable valve member, embodied as a valve ball, which can be brought by a restoring spring into contact with a valve seat A spring plate is provided between the restoring spring and the valve ball and has a spherical surface for guiding the valve ball, and a bearing face, remote from this spherical guide face, for the restoring spring. This spherical surface that guides the valve ball is intended to be interrupted at the spring plate.
    Type: Grant
    Filed: May 15, 2000
    Date of Patent: September 4, 2001
    Assignee: Robert Bosch GmbH
    Inventor: Kiyotaka Ogata
  • Patent number: 6196201
    Abstract: A pressure control valve for installation in a supply line between a pump work chamber of a fuel injection pump and an injection point in the engine to be supplied. A valve body that has a first valve seat and an axial through conduit in which a pressure control valve closing member is guided. The pressure control valve closing member opens toward the injection point counter to the force of a first valve spring and has a sealing face that cooperates with the first valve seat, as well as with an axial through bore in the pressure control valve closing member. The bore can be closed by a back-flow valve that opens in the direction of the pump work chamber and has a second valve spring. For an optimal, unthrottled fuel flow through the pressure control valve, fuel conduits are respectively formed between the radially outer circumference faces of the first and second valve springs and the housing walls that encompass them, through which conduit the fuel flows in an unthrottled fashion.
    Type: Grant
    Filed: April 30, 1999
    Date of Patent: March 6, 2001
    Assignee: Robert Bosch GmbH
    Inventors: Wolfgang Fehlmann, Ruben-Sebastian Henning, Walter Fuchs, Stephan Jonas, Kiyotaka Ogata
  • Patent number: 4756293
    Abstract: A fuel injection apparatus for injecting fuel adjusted in quantity in response to at least one of engine load and engine speed by utilization of the pressure of compressed air has the characteristic that the supplying time of the compressed air is set longer at at least one of low engine load and low engine speed that at at least one of high engine load and high engine speed.
    Type: Grant
    Filed: February 20, 1987
    Date of Patent: July 12, 1988
    Assignee: Diesel Kiki Co., Ltd.
    Inventors: Yuji Suzuki, Yoshio Kuroda, Kiyotaka Ogata