Patent application number | Description | Published |
20090194053 | PLASMA JET IGNITION PLUG - A plasma jet ignition plug capable of inhibiting occurrence of channeling while reducing removal of energy of plasma through a ground electrode at the time of emission of plasma. A ground electrode of a plasma jet ignition plug projects inward from a front end face of a metallic shell toward an opening end of a cavity which is open at a front end face of an insulator. A projecting distal end which forms a spark discharge gap between the same and a center electrode within a cavity is located inward, with respect to a diametral direction P orthogonal to an axis O, of a position which is located 0.5 mm radially outward from the opening end of the cavity. | 08-06-2009 |
20100259172 | Plasma jet ignition plug - 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 μH to 100 μH inclusive and a resistance of 1Ω 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. | 10-14-2010 |
20110215704 | PLASMA JET SPARK PLUG - A plasma jet spark plug for igniting an air-fuel mixture in a conventional combustion device such as an internal combustion engine. | 09-08-2011 |
20110221327 | PLASMA-JET SPARK PLUG AND IGNITION SYSTEM - A plasma jet ignition plug including an insulator having an axial hole extending therethrough in the direction of an axis CL | 09-15-2011 |
20110241523 | PLASMA JET IGNITION PLUG - 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. | 10-06-2011 |
20120013262 | IGNITION APPARATUS FOR PLASMA JET IGNITION PLUG AND IGNITION SYSTEM - 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. | 01-19-2012 |
20130088140 | PLASMA JET IGNITION PLUG - 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 (CL | 04-11-2013 |
Patent application number | Description | Published |
20090090178 | LIQUID STATE DETECTING SENSOR - A liquid state detecting sensor is provided in which a level detecting unit for detecting the level of a liquid and a concentration detecting unit for detecting the concentration of a particular component contained in the liquid are integrated. | 04-09-2009 |
20090235889 | IGNITION DEVICE FOR PLASMA JET IGNITION PLUG - An ignition device for a plasma jet ignition plug is provided. A resistance for decreasing electric noises is not incorporated in a plasma jet ignition plug. A resistance of not less than 1 KΩ and not more than 20 KΩ is provided to a path from a spark discharge circuit to a center electrode, thus reducing the generation of electric noises at the time of trigger discharge. Along with the reduction of the generation of electric noises, a loss of energy at the time of plasma discharge can be reduced by setting an inner resistance provided to a line extending to the center electrode from a plasma discharge circuit to 1Ω or less. Accordingly, the plasma jet ignition plug can jet flame-shaped plasma sufficiently large for igniting an air-fuel mixture. | 09-24-2009 |
20090289540 | SPARK PLUG - 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 0.4 mm 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 0.1 mm or more. | 11-26-2009 |
20100132666 | PLASMA JET IGNITION PLUG IGNITION CONTROL - 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. | 06-03-2010 |
20110254429 | PLASMA JET SPARK PLUG - 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. | 10-20-2011 |
20110297131 | IGNITION APPARATUS OF PLASMA JET IGNITION PLUG - 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. | 12-08-2011 |
Patent application number | Description | Published |
20090173152 | Liquid state detecting sensor - The present invention provides a liquid state detecting sensor that is free from a problem of increase in the number of parts and a problem in assembly and furthermore capable of, in support of electrodes, absorbing an error and supporting both electrodes, even in case an inner electrode has at a surface an insulation layer, without causing any damage to the layer. The liquid state detecting sensor includes an outer tubular electrode | 07-09-2009 |
20090302733 | SPARK PLUG FOR INTERNAL COMBUSTION ENGINE AND METHOD OF MANUFACTURING THE SAME - 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. | 12-10-2009 |
20100101307 | LIQUID STATE DETECTING SENSOR - 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. | 04-29-2010 |
Patent application number | Description | Published |
20130259350 | SIMILAR CASE SEARCHING APPARATUS AND SIMILAR CASE SEARCHING METHOD - 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. | 10-03-2013 |
20140049628 | DIGITAL SPECIMEN MANUFACTURING DEVICE, DIGITAL SPECIMEN MANUFACTURING METHOD, AND DIGITAL SPECIMEN MANUFACTURING SERVER - 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. | 02-20-2014 |
20140072193 | DIAGNOSTIC SUPPORT APPARATUS AND DIAGNOSTIC SUPPORT METHOD - 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. | 03-13-2014 |
20140079302 | MEDICAL IMAGE COMPRESSION DEVICE, MEDICAL IMAGE COMPRESSION METHOD, AND PREDICTION KNOWLEDGE DATABASE CREATION DEVICE - 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. | 03-20-2014 |
20140089000 | SIMILAR CASE SEARCHING APPARATUS, RELEVANCE DATABASE GENERATING APPARATUS, SIMILAR CASE SEARCHING METHOD, AND RELEVANCE DATABASE GENERATING METHOD - 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). | 03-27-2014 |
20140105475 | IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - 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 performed by the selecting unit. | 04-17-2014 |
20140105480 | IMAGE MEASUREMENT APPARATUS, IMAGE MEASUREMENT METHOD AND IMAGE MEASUREMENT SYSTEM - An image measurement apparatus includes: an image acquiring unit that acquires a sample image that is an image obtained by capturing an image of a sample; a standard color space converting unit that converts the sample image into a standard sample image that is an image in a standard color space; a color distribution normalizing unit that converts the standard sample image into a normalized sample image by converting pixel values of pixels in the standard sample image to cause a color distribution vector indicating a color distribution of the standard sample image to match a predetermined standard color distribution vector indicating a standard color distribution; and a positive rate acquiring unit that detects positive pixels by performing threshold processing on pixel values of pixels in the normalized sample image, and acquires a positive rate indicating a proportion of the detected positive pixels. | 04-17-2014 |
20140161327 | DIAGNOSTIC SUPPORT APPARATUS AND DIAGNOSTIC SUPPORT METHOD - A diagnostic support apparatus includes a base vector matching unit configured to match test image base vectors used for a base representation of a test image feature quantity of a test image and normal image base vectors used for a base representation of a normal image feature quantity of a normal image, a lesion determination unit configured to determine that the test image includes an image of a lesion site when a difference between a test image base coefficient and a normal image base coefficient is greater than a threshold, the test image base coefficient being a coefficient with which the test feature quantity is transformed to the base representation, and the normal image base coefficient being a coefficient with which the normal feature quantity is transformed to the base representation, and a determination result output unit configured to output a result of the determination by the lesion determination unit. | 06-12-2014 |
20140367555 | IMAGE MEASUREMENT APPARATUS AND IMAGE MEASUREMENT METHOD - An image measurement apparatus includes: a lighting unit that emits a first narrowband light with a bandwidth (i) narrower than a bandwidth of a visible light and (ii) including a dominant wavelength of a color of a positive cell nucleus; an image obtaining unit that obtains an examination image by capturing an image of a pathologic examination specimen to which the first narrowband light is emitted; a cell nuclei extracting unit that extracts pixels of positive cell nuclei from the examination image by comparing pixel values of the examination image with a predetermined threshold; a positive proportion calculating unit that calculates a proportion of the positive cell nuclei among cell nuclei included in the pathologic examination specimen, using the pixels of the positive cell nuclei extracted by the cell nuclei extracting unit; and an output unit that outputs the proportion. | 12-18-2014 |
20150023573 | PATHOLOGICAL DIAGNOSIS SUPPORT APPARATUS AND PATHOLOGICAL DIAGNOSIS SUPPORT METHOD - A pathological diagnosis support apparatus which outputs a diagnostic region that is to be used as a target for diagnosis in a specimen image representing a specimen that is a target for pathological diagnosis, and includes: a target obtainment unit which obtains the specimen image and specimen information related to a scheme for preparing the specimen; a criterion obtainment unit which obtains a criterion corresponding to the specimen information from a database associating, for each of specimens, specimen information related to a scheme for preparing the specimen with a criterion indicating a condition of a positive rate which is to be satisfied by the diagnostic region in a specimen image; and an output unit which outputs, as the diagnostic region, each of one or more regions in the specimen image having the positive rate determined to satisfy a condition indicated by the criterion obtained by the criterion obtainment unit. | 01-22-2015 |
20150163405 | IMAGE FORMING APPARATUS, IMAGE FORMING METHOD AND IMAGE SENSOR - An exemplary image forming apparatus includes: an illumination system which sequentially emits illuminating light beams from multiple different irradiation directions; an image sensor which captures a plurality of different images in the multiple different irradiation directions, respectively; an image processing section which forms a high-resolution image; and a memory which stores data about the ratio of light rays that have been incident on a photoelectric conversion section of each pixel of the image sensor to light rays that have passed through the upper surface of a plurality of subpixels included in the pixel with respect to each of the multiple irradiation directions. The image processing section forms the high-resolution image based on the data that has been retrieved from the memory by extracting, as a vector, a set of pixel values associated with the multiple irradiation directions from pixel values that form each of the plurality of images. | 06-11-2015 |
20150262384 | IMAGE MEASUREMENT DEVICE AND IMAGE MEASUREMENT METHOD - An image measurement device including: light sources that irradiate light beams having different peak wavelengths; a staining method obtaining unit which obtains information indicating a staining method of an inspection specimen; an image obtaining unit which: selects a combination of light sources according to the staining method, based on illumination information; and capture inspection images of the inspection specimen with light beams from the selected light sources, and capture reference images of a reference specimen with light beams from the respective light sources; a calculating unit which calculates a positivity based on the inspection images; and an evaluation unit which associates the staining method of the reference specimen with the combination of light sources to generate the illumination information based on a total value of coefficients in a linear sum of the ortho-normalization base vectors of a spectral distribution of light sources calculated based on the reference images. | 09-17-2015 |