Patents by Inventor Yoshikuni Sato

Yoshikuni Sato 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).

  • Publication number: 20140105475
    Abstract: An image processing apparatus including: an examination image obtaining unit obtaining an examination image of an examination subject; a shift-invariant feature quantity calculating unit calculating, for each pixel, a shift-invariant feature quantity represented by predetermined base vectors, from the examination image obtained by the examination image obtaining unit; a selecting unit selecting, on the examination image, a pixel having a matching degree lower than or equal to a predetermined threshold, between (i) a relative positional relationship of classes in normal images each of which does not include a lesion site and (ii) a relative positional relationship of the classes to which shift-invariant feature quantities respectively belong in the examination image, the classes being obtained by clustering the shift-invariant feature quantities: calculated from pixels included in the normal images; and represented by the predetermined base vectors; and an output unit outputting a result of the selection perfo
    Type: Application
    Filed: December 17, 2013
    Publication date: April 17, 2014
    Applicant: Panasonic Corporation
    Inventors: Yoshikuni SATO, Hideto MOTOMURA, Kazuki KOZUKA
  • Publication number: 20140089000
    Abstract: A similar case searching apparatus includes: a search vector generating unit which: with reference to a relevance database storing the degrees of relevance between (i) a combination of the keyword extracted by the keyword extracting unit and the attribute value of the keyword obtained by the keyword attribute obtaining unit and (ii) the respective image feature quantities extracted by the image feature extracting unit, performs weighting on (i) the image feature quantities extracted by the image feature extracting unit and (ii) image feature quantities extracted from a second medical image group of medical images included in a second case data item stored in the case database, using the degrees of relevance as weights; and a similar case searching unit which searches out, from the case database, the second case data item similar to a first case data item by comparing the weighed image feature quantities (i) and (ii).
    Type: Application
    Filed: November 27, 2013
    Publication date: March 27, 2014
    Applicant: Panasonic Corporation
    Inventors: Kazutoyo TAKATA, Kenji KONDO, Kazuki KOZUKA, Yoshikuni SATO
  • Publication number: 20140079302
    Abstract: A medical image compression device includes: a compression target obtaining unit obtaining a target medical image to be compressed and diagnostic finding information for the target image; a clinical condition range obtaining unit dividing the target image into regions for the respective clinical conditions based on the diagnostic finding information; a pixel value prediction unit, for an arbitrary pixel, referring to a prediction knowledge database, and calculating a prediction probability of a value of a prediction target pixel based on the clinical condition of the prediction target pixel and the appearance distribution of the value of the prediction target pixel; a coding unit coding the value of the prediction target pixel based on the prediction probability of the pixel value; and an output unit outputting a code of the prediction target pixel after being coded by the coding unit.
    Type: Application
    Filed: November 21, 2013
    Publication date: March 20, 2014
    Applicant: PANASONIC CORPORATION
    Inventors: Yoshikuni SATO, Hideto MOTOMURA
  • Publication number: 20140072193
    Abstract: The diagnostic support apparatus includes a feature quantity calculation unit vectorizing a test image into shift-invariant feature quantities, a base representation unit transforming the shift-invariant feature quantities of the test image into a linear combination of base vectors with first coefficients, the base vectors being calculated from a plurality of vectors representing shift-invariant feature quantities of a plurality of normal structural images including no lesion site, a lesion determination unit determining that the test image includes a lesion site when a difference between the first coefficients and second coefficients is greater than a determination threshold value, the second coefficients being used to transform shift-invariant feature quantities calculated from one of the normal structural images into a linear combination of the base vectors, and an output unit outputting a result of the determination by the lesion determination unit.
    Type: Application
    Filed: October 30, 2013
    Publication date: March 13, 2014
    Applicant: PANASONIC CORPORATION
    Inventors: Hideto MOTOMURA, Yoshikuni SATO, Kazuki KOZUKA
  • Publication number: 20140049628
    Abstract: A digital specimen manufacturing device comprises: a reduction processing unit which generates a reduced image by reducing a high resolution image of a first magnification into a second magnification image; an operation instruction unit which instructs the imaging unit to update the second magnification and recapture the low resolution image when information indicates the difference between the reduced image and the low resolution image is not within the allowable error range; and an image processing unit which obtains a third magnification, and outputs an image of the digital specimen by reducing the high resolution image into an image of the third magnification which an image magnification greater than the updated second magnification and smaller than the first magnification.
    Type: Application
    Filed: October 24, 2013
    Publication date: February 20, 2014
    Applicant: Panasonic Corporation
    Inventors: Hideto MOTOMURA, Yoshikuni SATO
  • Patent number: 8558441
    Abstract: A plasma jet ignition plug including a wire-wound resistor for restraining the radiation of noise while allowing application of a sufficiently large current for generation of plasma to a spark discharge gap at the time of ignition. The wire-wound resistor having an inductance of 1 ?H to 100 ?H inclusive and a resistance of 1? or less, and is provided on at least one of a center electrode and a ground electrode. The wire-wound resistor restrains current which is generated by the influence of stray capacitance present in the plasma jet ignition plug, thereby reducing noise.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: October 15, 2013
    Assignee: NGK Spark Plug Co., Ltd.
    Inventors: Daisuke Nakano, Yoshikuni Sato, Hiroyuki Kameda, Naohumi Yamamura, Daisuke Kasahara
  • Publication number: 20130259350
    Abstract: A similar case searching apparatus includes: an image feature quantity extracting unit which extracts image feature quantities from an interpretation target image; a reference expression extracting unit which extracts a reference expression from a description related to a second test in a target image interpretation report; a weight determining unit which determines, for each image feature quantity, a weight which is larger as the correlation between the image feature quantity and the reference expression is higher, based on two-data correlation information; and a similar case searching unit which searches a case database for a similar case data item including a medical image similar to the interpretation target image, by weighting the image feature quantity extracted from the interpretation target image and a corresponding image feature quantity extracted from the medical image and comparing the weighted image feature quantities.
    Type: Application
    Filed: May 28, 2013
    Publication date: October 3, 2013
    Inventors: Yoshikuni SATO, Kenji KONDO, Kazutoyo TAKATA, Kazuki KOZUKA
  • Patent number: 8536770
    Abstract: A plasma jet spark plug capable of preventing a channeling progress and having excellent heat conduction. The plasma jet spark plug comprised of: a ceramic insulator having a small diameter portion which assumes a linear shape in an axial direction, and a center electrode has an outer diameter increasing in the order of a frontmost portion, a step portion, a front end portion and a body portion.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: September 17, 2013
    Assignee: NGK Spark Plug Co., Ltd.
    Inventors: Hiroyuki Kameda, Yoshikuni Sato, Daisuke Nakano, Naofumi Yamamura, Daisuke Kasahara
  • Patent number: 8528531
    Abstract: A current of sufficient size to form plasma at ignition of a plasma jet ignition plug flows to a spark discharge gap while suppressing noise occurrence. There is provided an ignition apparatus of a plasma jet ignition plug, which includes a resistor R1, with one end connected to a diode D1 disposed between the plasma jet ignition plug 100 and a high-voltage generation circuit 210 and with the other end electrically connected to a center electrode 40 of the plasma jet ignition plug 100, and a capacitor C1, with one end connected to the center electrode 40 of the plasma jet ignition plug 100 and with the other end grounded.
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: September 10, 2013
    Assignee: NGK SPark Plug Co., Ltd.
    Inventors: Daisuke Nakano, Yoshikuni Sato, Hiroyuki Kameda, Naofumi Yamamura, Daisuke Kasahara
  • Publication number: 20130088140
    Abstract: An ignition plug providing excellent ignition performance that can be maintained over a long period of time by restraining channeling. The ignition plug includes a ceramic insulator having an axial bore, a center electrode inserted into the axial bore, a metallic shell, and a ground electrode fixed to the metallic shell, and has a cavity defined by an inner circumferential surface of the axial bore and the forward end surface of the center electrode. The axial bore includes a first straight portion and a diameter-reducing portion. As viewed on a section which contains an axis (CL1) of the ignition plug, a relational expression ??10 is satisfied, where ? (°) is an acute angle formed by a straight line orthogonal to the axis (CL1) and the outline of the diameter-reducing portion.
    Type: Application
    Filed: June 14, 2011
    Publication date: April 11, 2013
    Applicant: NGK SPARK PLUG CO., LTD.
    Inventors: Hiroyuki Kameda, Daisuke Nakano, Naofumi Yamamura, Daisuke Kasahara, Yoshikuni Sato
  • Patent number: 8316823
    Abstract: A control system for controlling the ignition of a plasma-jet spark plug provided in an internal combustion engine senses an operating condition of the internal combustion engine, and determines an ignition mode of the plasma-jet spark plug in accordance with the sensed operating condition. The control system performs an ignition control of breaking down the insulation across a spark discharge gap by applying a first electric power to the plasma-jet spark plug, and producing plasma in the vicinity of the spark discharge gap by applying a second electric power to the spark discharge gap in a state of dielectric breakdown. The control system performs this ignition control according to the ignition mode determined as mentioned above.
    Type: Grant
    Filed: January 8, 2009
    Date of Patent: November 27, 2012
    Assignee: NGK Spark Plug Co., Ltd.
    Inventors: Yoshikuni Sato, Daisuke Nakano, Yuichi Yamada, Toru Nakamura
  • Patent number: 8288929
    Abstract: A spark plug comprising a center electrode, a first noble metal tip joined to the center electrode, an insulator, a metallic shell, a ground electrode joined to the metallic shell and including an outer layer and an inner layer, and a second noble metal tip joined to the ground electrode by way of a melted portion, wherein in a cross section of the ground electrode, the protrusion height A of the second noble metal tip is 0.4mm or more, the ground electrode includes a substantially flat joining surface to which the second noble metal tip is joined and an outwardly curved surface, the inner layer has at the joining surface side a substantially flat surface or recessed surface, and the minimum distance F between the melted portion and the inner layer is 0.1mm or more.
    Type: Grant
    Filed: April 17, 2008
    Date of Patent: October 16, 2012
    Assignee: NGK Spark Plug Co., Ltd.
    Inventors: Kenji Nunome, Yoshikuni Sato
  • Patent number: 8253312
    Abstract: A plasma jet spark plug for igniting an air-fuel mixture in a conventional combustion device such as an internal combustion engine.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: August 28, 2012
    Assignee: NGK Spark Plug Co., Ltd.
    Inventors: Hiroyuki Kameda, Yoshikuni Sato, Daisuke Nakano, Naofumi Yamamura, Daisuke Kasahara
  • Patent number: 8198790
    Abstract: A plasma jet ignition plug having high ignition performance and high durability. The plasma jet ignition plug comprises a center electrode wherein at least a front end portion including a front end surface of the center electrode contains an oxide of at least one of the rare earth elements in a total amount of 0.5% by mass to 10% by mass inclusive and tungsten (W) in an amount of 90% by mass or greater, or contains iridium (Ir) in an amount of 0.3% by mass to 3% by mass inclusive and W in an amount of 97% by mass or greater.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: June 12, 2012
    Assignee: NGK Spark Plug Co., Ltd.
    Inventors: Hiroyuki Kameda, Yoshikuni Sato, Daisuke Nakano, Naofumi Yamamura, Daisuke Kasahara
  • Patent number: 8196557
    Abstract: A plasma jet ignition plug including an insulator having an axial hole extending therethrough in the direction of an axis CL1, a center electrode inserted into the axial hole, and a ground electrode disposed frontward of the front end of the insulator. The insulator has a cavity defined by the wall surface of the axial hole and the front end surface of the center electrode and opens frontward. The ground electrode has a through hole for establishing communication between the cavity and an ambient atmosphere. A front end portion of the center electrode is formed into a taper portion whose diameter reduces frontward in the direction of the axis CL1. The outside diameter of a front end of the taper portion is smaller than the diameter of the through hole. The cavity has a substantially constant diameter with respect to the direction of the axis CL1.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: June 12, 2012
    Assignee: NGK Spark Plug Co., Ltd.
    Inventors: Hiroyuki Kameda, Yoshikuni Sato, Daisuke Nakano, Naofumi Yamamura, Daisuke Kasahara
  • Patent number: 8164243
    Abstract: A spark plug having a center electrode; an insulator having an axial hole extending in the direction of an axis; a metallic shell; a ground electrode extending from a front end portion of the metallic shell; a center-electrode-side noble metal chip joined to a distal end surface of the center electrode; and a ground-electrode-side noble metal chip joined to a distal end surface of the ground electrode, the ground-electrode-side noble metal chip having a distal end surface facing toward a side surface portion of the center-electrode-side noble metal chip, and the ground electrode being bent at an angle that falls within a range of 120° to 140° inclusive.
    Type: Grant
    Filed: May 29, 2009
    Date of Patent: April 24, 2012
    Assignee: NGK Spark Plug Co., Ltd.
    Inventors: Kenji Nunome, Yoshikuni Sato
  • Patent number: 8137625
    Abstract: A urea sensor includes a detecting portion which, in use, is immersed in a liquid accommodated in a urea solution tank for detecting the thermal conductivity of the liquid to detect whether the liquid accommodated in the urea solution tank is an aqueous urea solution; and an enclosing member enclosing a periphery of the detecting portion and including one or more vents penetrating the enclosing member. At least one of the vents is a lower vent being of a configuration and size such that a first hypothetical circle having a diameter of not less than 3.5 mm can be wholly contained within the lower vent. At least a portion of the lower vent is positioned below the detecting portion when the urea sensor is positioned for installation in the urea solution tank.
    Type: Grant
    Filed: January 18, 2008
    Date of Patent: March 20, 2012
    Assignee: NGK Spark Plug Co., Ltd.
    Inventors: Takeo Sasanuma, Yoshikuni Sato, Akihiro Yoshida
  • Patent number: 8122764
    Abstract: A sensor for detecting a state of liquid contained in a container comprising an outer tubular electrode made of an electrically conductive material, an inner electrode made of an electrically conductive material and disposed concentrically within the outer tubular electrode, a base end support member supporting base end portions of the outer tubular electrode and the inner electrode in a way as to provide insulation therebetween, and a leading end support member elastically supporting a leading end portion of the inner electrode on an inside of a leading end portion of the outer tubular electrode.
    Type: Grant
    Filed: January 4, 2010
    Date of Patent: February 28, 2012
    Assignee: NGK Spark Plug Co., Ltd.
    Inventors: Yoshikuni Sato, Takashi Yamamoto, Takeo Sasanuma, Yuki Mizuno
  • Publication number: 20120013262
    Abstract: An ignition apparatus for an ignition plug which uses a positive polarity power supply, which can cause the ignition plug to generate spark discharge while using its center electrode as a negative electrode, and which can adjust the timing of supply of electric energy to the ignition plug and the timing of charging of capacitors. The ignition apparatus is adapted to cause the ignition plug to generate spark discharge while using its center electrode as a negative electrode, and includes a positive power supply, and energy supply units. Each energy supply unit includes a capacitor connected at one end to the power supply and connected at the other end to the ignition plug; a switching unit for charging; and a switching unit for energy supply.
    Type: Application
    Filed: July 6, 2011
    Publication date: January 19, 2012
    Inventors: Daisuke Nakano, Yoshikuni Sato, Hiroyuki Kameda, Naofumi Yamamura, Daisuke Kasahara
  • Publication number: 20110297131
    Abstract: A current of sufficient size to form plasma at ignition of a plasma jet ignition plug flows to a spark discharge gap while suppressing noise occurrence. There is provided an ignition apparatus of a plasma jet ignition plug, which includes a resistor R1, with one end connected to a diode D1 disposed between the plasma jet ignition plug 100 and a high-voltage generation circuit 210 and with the other end electrically connected to a center electrode 40 of the plasma jet ignition plug 100, and a capacitor C1, with one end connected to the center electrode 40 of the plasma jet ignition plug 100 and with the other end grounded.
    Type: Application
    Filed: February 18, 2010
    Publication date: December 8, 2011
    Inventors: Daisuke Nakano, Yoshikuni Sato, Hiroyuki Kameda, Naofumi Yamamura, Daisuke Kasahara