Patent application number | Description | Published |
20080310265 | METHOD OF RECORDING DATA, METHOD OF MANUFACTURING READ-ONLY OPTICAL DISC, AND READ-ONLY OPTICAL DISC - A method of recording data includes: a first recording step of recording data in a condition that, within a certain error correction block in a data format in which error correction blocks with n rows and m columns including at least main data, error detection code, and error correction parity are formed, an allocated location of additional supplementary information is set in a location in the same column as an allocated location of the error detection code, and an additional recording area is formed for recording additional information containing the additional supplementary information and the error detection code and the error correction parity necessary to be recorded according to the recording of the additional supplementary information; and a second recording step of recording the additional information in the additional recording area after the data recording at the first step is executed. | 12-18-2008 |
20090041933 | RECORDING DRIVE WAVEFORM ADJUSTING METHOD FOR MANUFACTURING MASTER DISC, MASTER DISC MANUFACTURING METHOD, MASTER DISC MANUFACTURING APPARATUS, AND MASTER DISC - A recording drive waveform adjusting method for manufacturing a master disc is provided. The method includes forming an exposed area in an inorganic resist layer for test exposure by irradiating a master disc having the inorganic resist layer with laser light of a recording power based on a recording drive waveform according to a test recording signal. The method also includes obtaining reflected-light information by irradiating the exposed area formed in the test exposure with laser light of a reproducing power, determining whether the recording drive waveform is appropriate by using the reflected-light information, and correcting the recording drive waveform if the recording drive waveform is determined to be inappropriate in the determination. | 02-12-2009 |
20090080312 | READ-ONLY OPTICAL DISC MEDIUM AND METHOD OF MANUFACTURING SAME - At the stage where disc substrates are to be manufactured in mass production by using a stamper, a section where pits/lands are not formed is formed in advance as an additional information recording section among recording tracks formed by a recording data sequence of pits/lands. A metal alloy reflection film is coated on the information recording surface including such an additional information recording section | 03-26-2009 |
20100180125 | INFORMATION SERVICE METHOD, INFORMATION SERVICE UNIT, RECORDING OR REPRODUCING CONTROLLING METHOD, AND RECORDING AND/OR REPRODUCING UNIT - Unique identification information is prerecorded on a disc. The identification information is registered to a server along with user's license when he or she buys the disc. When an terminal unit reproduces data from the disc, identification information is read and transmitted to the server through the Internet. The server creates a key that controls to reproduce data from the disc in accordance with the license identified by the identification information and transmits the key to the terminal unit along with the user's license information for the disc. The terminal unit controls to reproduce contents of the disc in accordance with key and license information transmitted from the server. The license for each disc is managed in accordance with the identification information. Thus, different services can be provided for individual discs. | 07-15-2010 |
20100220571 | Optical disc medium and data recording method and apparatus - An optical disc medium and corresponding optical recording method and optical recording apparatus. The optical disc medium comprises a substrate on which a shape according to modulated information data has been formed, and a coating film formed on the substrate. Known data is recorded in a predetermined location of the information data, with the known data being rewritten as postscript information by recording a postscript portion to the coating film to alter a portion of the known data, wherein the postscript information comprises readable non-error data. | 09-02-2010 |
20110207035 | Exposure apparatus and exposure method - An exposure apparatus includes an exposure unit selectively performing exposure on a resist layer with a first laser beam, focused by a lens system, in a pattern including pits and lands arranged in a scanning direction; a detecting unit detecting a reflection of a second laser beam applied through the lens system to the resist layer selectively exposed to the first laser beam, the second laser beam being produced by changing a focal length of the lens system such that the resist layer is prevented from responding thereto; a calculating unit calculating, from a result of the detection, a displacement between center axes of signal waveforms representing beams reflected from first and second portions of the pattern having a smallest width and a larger width, respectively; a setting unit setting the focal length of the lens system to such a value that the displacement is maximal; and a control unit controlling the exposure unit to expose the resist layer to the first laser beam focused with the focal length set by the setting unit. | 08-25-2011 |
20120207006 | RECORDING APPARATUS, MASTER MANUFACTURING APPARATUS, AND METHOD OF MANUFACTURING AN OPTICAL DISC RECORDING MEDIUM - A recording apparatus includes a rotation driving portion that rotates and drives an optical disc master; and a recording portion that performs an information recording on the optical disc master, by performing a laser beam irradiation on the optical disc master, based on a recording waveform which has a land pulse of a first power, a recording waveform portion having a recording pulse of a second power higher than the first power, and a cooling pulse which has a third power lower than the first power and is inserted between the land pulse and the recording waveform portion. | 08-16-2012 |
20120236697 | MASTER STRATEGY ADJUSTMENT METHOD AND DISC MANUFACTURING METHOD - A master strategy adjustment method includes performing first recording on a master with a predetermined strategy, performing first measurement of an evaluation value of the master of the first recording, forming a first optical disc based on the master after the first recording, performing second measurement of an evaluation value of the optical disc formed as the first optical disc, calculating a target value of the evaluation value of the master based on a difference with the first measurement evaluation value and the second measurement evaluation value, and adjusting the strategy so that the evaluation value with regard to the master matches the target value, performing recording on the master with the adjusted writing strategy, performing measurement of the evaluation value of the master, and performing determination of whether the evaluation value is within a predetermined range with the target value as a reference until an affirmative result is obtained. | 09-20-2012 |
20130064061 | MARK FORMING APPARATUS AND MARK FORMING METHOD - Provided is a mark forming apparatus including a head unit that forms a mark on a recording medium through laser beam irradiation based on a laser driving pulse, a control signal generation unit that generates a control signal at a start timing of the laser driving pulse supplied to the head unit, a multiplier that multiples a synchronization reference signal used to synchronize with the process of forming the mark on the recording medium in the head unit to generate a multiple signal, and a laser driving pulse generation unit that generates the laser driving pulse by setting the start timing of the laser driving pulse at resolution based on the multiple signal in accordance with the control signal. | 03-14-2013 |
20130142028 | OPTICAL RECORDING MEDIUM, MANUFACTURING METHOD FOR OPTICAL RECORDING MEDIUM - The present disclosure relates to an optical recording medium and a manufacturing method for an optical recording medium capable of obtaining an appropriate reproduction signal, as a bar code-shaped recording region (BCA) on an optical recording medium. | 06-06-2013 |
20130155828 | RECORDING METHOD AND RECORDING APPARATUS - A recording method includes: generating a laser driving pulse, of which the number depends on a length of a mark which is formed, and where a pulse level of a pulse column at least in an intermediate pulse besides the lead pulse and the last pulse is sequentially decreased; performing laser emission, based on the laser driving pulse; and performing mark formation using thermal recording by laser irradiation on a recording medium. | 06-20-2013 |
20140362675 | EXPOSURE DEVICE, RECORDING MEDIUM, RECORDING DEVICE, AND REPRODUCING DEVICE - There is provided a recording medium including: simple tracks each configured of arranged pits or arranged marks; and grooved tracks each configured of pits or marks and grooves, the grooves being inserted between the pits or between the marks. The simple tracks and the grooved tracks are arranged alternately in a radial direction at a track pitch of 0.27 micrometers or smaller. | 12-11-2014 |
Patent application number | Description | Published |
20100238782 | OPTICAL PICKUP, OPTICAL INFORMATION RECORDING METHOD, AND OPTICAL DISK APPARATUS - The recording accuracy of information on an optical disc is increased. | 09-23-2010 |
20100322062 | OPTICAL PICKUP AND OPTICAL DISC DEVICE - An optical pickup includes: a light source that emits a light beam; an object lens that focuses the light beam on an optical disc having a recording layer formed of a fluorescent recording material and a reflecting section adjacent to the recording layer, the recording layer generating, according to presence or absence of a recording mark representing information, a reproduction light beam having wavelength different from that of the light beam when the light beam is irradiated thereon from the light beam, and the reflecting section reflecting the light beam; a wavelength selecting element that separates, from the reproduction light beam, a reflected light beam reflected by the reflecting section of the optical disc and having wavelength equivalent to that of the light beam; and a reflected light detector that receives the reflected light beam separated by the wavelength selecting element and generates a position detection signal. | 12-23-2010 |
20100322063 | OPTICAL INFORMATION REPRODUCING APPARATUS AND OPTICAL INFORMATION REPRODUCING METHOD - An optical information reproducing apparatus includes: an irradiation section irradiating a light beam onto an optical information recording medium, in which holes are formed along a virtual track on a recording medium, along the virtual track; a light receiving section receiving a reflected light beam when the light beam is reflected by the optical information recording medium and sequentially generating a light receiving signal corresponding to the light intensity; a detection section detecting a variation pattern appearing when a signal level of the light receiving signal changes according to the hole; and a code string generating section, when generating a code string corresponding to the signal level, generating a code corresponding to the one hole from the variation pattern if the variation pattern falls within a range and generating a code string, which includes a plurality of codes, from the variation pattern if the variation pattern exceeds the range. | 12-23-2010 |
20110007619 | OPTICAL DISC APPARATUS AND TRACKING CONTROL METHOD - An optical disc apparatus includes: a rotation section to rotate an optical disc including a spiral or concentric track with a predetermined track center, with a rotational center of the optical disc as the center; a light source to emit a light beam; an objective lens to collect the light beam on the optical disc; a lens drive section to drive the objective lens in a tracking direction; a light-receiving section to receive a reflected light beam and generate a light-receiving signal; a tracking error signal generation section to generate a first tracking error signal based on the light-receiving signal; an eccentric-state acquisition section to acquire an eccentric state of the track center; a correction section to generate a corrected tracking error signal; and a drive control section to drive the objective lens in the tracking direction by the lens drive section based on the corrected tracking error signal. | 01-13-2011 |
20110096648 | OPTICAL DRIVE DEVICE AND TILT DETECTION METHOD - An optical drive device for performing information recording or reproduction of recorded information by formation of a mark by focusing a first light at a necessary position in a recording layer of an optical recording medium by an objective lens includes a position control unit configured to focus a second light on a reflection film, in which a position guide element of the optical recording medium is formed, through the objective lens and to enable the spot position of the second light to follow the position guide element based on the reflected light of the second light focused on the reflection film so as to control the position of the objective lens. The optical drive device further includes a first focusing unit, a first light-sensing portion, and a surface reflection light deviation amount detection unit. | 04-28-2011 |
20110103211 | OPTICAL RECORDING MEDIUM, METHOD OF MANUFACTURING OPTICAL RECORDING MEDIUM, RECORDING METHOD AND REPRODUCING METHOD - An optical recording medium includes recording layers and intermediate layers. The recording layers include a diffraction grating that has a predetermined grating pitch and is obtained by alternately laminating first layers and second layers being transparent and having slightly different refractive indexes. The intermediate layers are transparent and have a larger thickness than that of the recording layers. In the optical recording medium, the recording layers and the intermediate layers are alternately laminated. | 05-05-2011 |
20110134732 | OPTICAL RECORDING MEDIUM, OPTICAL RECORDING MEDIUM DRIVING APPARATUS, AND OPTICAL RECORDING MEDIUM DRIVING METHOD - An optical recording medium driving apparatus includes an optical pickup which irradiates first and second laser lights from one object lens with respect to an optical recording medium having a bulk layer and a tilt detection surface; a focus control portion that performs the focus control relative to each predetermined position of the optical recording medium in regard to each of the first and second laser lights; a tracking control portion that controls the position of the object lens to perform the tracking control of the first and second laser lights relative to the optical recording medium; and a tilt control portion. | 06-09-2011 |
20110134742 | PICKUP APPARATUS, OPTICAL RECORDING AND REPRODUCTION APPARATUS, AND RECORDING AND REPRODUCTION METHOD - A pickup apparatus includes a light source; a light separator; an object lens that concentrates the light which penetrated the light separator on the optical recording medium; a movable lens; and a light sensing element that receives the reflected light from the optical recording medium separated by the light separator, wherein a coma aberration generated by the transverse shift of the object lens is corrected by a coma aberration which is generated by the deviation of a spherical aberration generated in an optical path from the light source to the object lens and a spherical aberration generated in an optical path from the object lens to a light concentration position on the optical recording medium which are due to the transverse shift. | 06-09-2011 |
20110242951 | OPTICAL PICKUP, OPTICAL DRIVE APPARATUS, AND LIGHT ILLUMINATION METHOD - There is provided an optical pickup including: an optical-system having an object-lens illuminating a first light for information recording or reproducing on a recording layer as a target and a second light on an optical-recording medium including a reference plane having a reflection-layer and the recording-layer at a layer position different from that of the reference-plane and on which information recording is performed through mark formation, and a focus-aligned-position-adjusting unit adjusting a focus-aligned position of the first light through the object-lens by changing collimation thereof incident to the object-lens; and a focusing-mechanism driving the object-lens in a focusing direction, wherein, when a depth of focus λ/NA | 10-06-2011 |
20120063287 | OBJECTIVE LENS, OPTICAL PICKUP, AND OPTICAL DRIVE DEVICE - Provided is an objective lens, which is provided in an optical pickup including a spherical aberration correction mechanism which performs a spherical aberration correction with respect to laser light applied to a recording layer of an optical recording medium, having the recording layer on which information can be recorded at a plurality of positions in a depth direction, via the objective lens, and a tilt correction unit which varies a lens tilt angle which is a tilt angle of the objective lens, thereby performing a tilt correction. | 03-15-2012 |
20120127848 | RECORDING MEDIUM, METHOD OF INITIALIZING THE SAME, INITIALIZING DEVICE, AND REPRODUCING METHOD - There is provided a method of initializing a recording medium having a first surface and a second surface which face to each other with a recording layer in between. The method includes forming interference patterns to have a pitch wider than λr/2N by applying initializing light of a plane wave with a wavelength λf to the recording layer from both of the first surface side and the second surface side, where λr is a wavelength of reproducing light applied to the recording layer at the time of reproducing recorded information, and N is an average refractive index of the recording layer. | 05-24-2012 |
20120147725 | REPRODUCING APPARATUS AND REPRODUCING METHOD - A reproducing apparatus includes: a first laser irradiation section irradiating an optical recording medium having a bulk recording layer and recording marks formed by focusing a laser beam on each predetermined layer position in the recording layer, with a first laser beam through an objective lens; a focus position adjusting section adjusting a focus position of the first laser beam; a beam receiving section receiving a reflected beam of the first laser beam from the marks and generating a light receiving signal; a reproducing section reproducing information recorded with the marks based on the light receiving signal; and a control section performing control to allow the focus position in reproduction of the information to correspond to a position shifted by a certain distance to an upper layer side from a focus position of the laser beam in forming the mark at the layer positions as a reproducing object. | 06-14-2012 |
20120163141 | OPTICAL DISK DEVICE, OPTICAL PICKUP, AND OPTICAL RECORDING MEDIUM - The present invention can properly correct spherical aberration. | 06-28-2012 |
20120182851 | OPTICAL RECORDING MEDIUM AND RECORDING METHOD - Techniques for recording and reading information to/from a recording medium based on positions of a plurality of marks are described herein. Each of the plurality of marks may have the same length. The information may be recorded based on a mark interval between successive marks. Apparatus and a recording medium suitable for use with such techniques are also disclosed. | 07-19-2012 |
20120188864 | RECORDING MEDIUM AND REPRODUCING APPARATUS - A recording medium includes a photosensitive layer, a nonphotosensitive layer, and a recording layer formation region in which the photosensitive layer and the nonphotosensitive layer are laminated. The photosensitive layer includes a recording layer in which interference fringes formed in parallel with a recording medium surface are deleted or changed within a portion irradiated with focused light to record information or light reflected during irradiation of focused light is used to reproduce information. | 07-26-2012 |
20120320721 | OPTICAL RECORDING MEDIUM DRIVING APPARATUS, AND METHOD OF GENERATING TRACKING ERROR SIGNAL - An optical-recording-medium driving apparatus includes: a light irradiating/receiving section configured to irradiate light on a medium so as to form a first side spot, a main spot, and a second side spot, and to receive reflection light from the individual spots; a first delay section configured to delay a light reception signal on the first side spot in accordance with a disposition interval between the first and the second side spots; a second delay section configured to delay a light reception signal on the main spot in accordance with a disposition interval between the main and second side spots; and a tracking-error-signal generation section configured to generate a tracking error signal on the basis of a correlation between delayed light reception signals on the first side spot and the main spot, and a correlation between the light reception signals on the second side spot and the main spot. | 12-20-2012 |
20130010583 | OPTICAL PICK UP, OPTICAL DRIVE DEVICE, AND LIGHT IRRADIATION METHOD - The present invention relates to an optical pick, an optical drive device, and a light irradiation method capable of suppressing a generated amount of shift Δx of a spot position. | 01-10-2013 |
20130142028 | OPTICAL RECORDING MEDIUM, MANUFACTURING METHOD FOR OPTICAL RECORDING MEDIUM - The present disclosure relates to an optical recording medium and a manufacturing method for an optical recording medium capable of obtaining an appropriate reproduction signal, as a bar code-shaped recording region (BCA) on an optical recording medium. | 06-06-2013 |
20130322228 | OPTICAL INFORMATION RECORDING MEDIUM AND OPTICAL INFORMATION RECORDING MEDIUM REPRODUCING APPARATUS - An optical information recording medium of a CAV or a zone CAV, in which a groove wobbling continuously is formed in advance so as to record information to a groove and a land abutting the groove, the groove alternately has a first wobble position in which a wobble fundamental wave form has been modulated by groove address information, and a second wobble position of the wobble fundamental wave form, and in grooves of both sides by which the land is interposed, the first wobble position and the second wobble position are different from each other in position. | 12-05-2013 |
20130342885 | DISPERSION COMPENSATION OPTICAL APPARATUS AND SEMICONDUCTOR LASER APPARATUS ASSEMBLY - Disclosed is a dispersion compensation optical apparatus including a first transmission type volume hologram diffraction grating and a second transmission type volume hologram diffraction grating. The first and second transmission type volume hologram diffraction gratings are arranged facing each other. A sum of an incident angle of laser light and an emitting angle of first-order diffracted light is 90° in each of the first and second transmission type volume hologram diffraction gratings. | 12-26-2013 |
20140036651 | REPRODUCING DEVICE AND REPRODUCING METHOD - A reproducing device includes a light generation and emission unit that obtains signal light as reflection light, which reflects recording signals of a land and a groove, by irradiating an optical recording medium with light and generates reference light so as to emit the signal light and the reference light in a superposed manner, a detection optical system that generates a first combination of signal light and reference light, a second combination of signal light and reference light, a third combination of signal light and reference light, and a fourth combination of signal light and reference light respectively, a light receiving unit in which the first to fourth combinations of signal light and reference light are respectively received by first to fourth light receiving elements, and a reproduction unit that reproduces the recording signals of the land and the groove on the basis of first to fourth light receiving signals. | 02-06-2014 |
20140044940 | OPTICAL RECORDING MEDIUM AND METHOD FOR MANUFACTURING OPTICAL RECORDING MEDIUM - An optical recording medium includes a first transparent film layer, a second transparent film layer, and a recording material layer sandwiched between the first transparent film layer and the second transparent film layer. The recording material layer includes a hologram recording material. | 02-13-2014 |
20140064050 | SKEW DETECTION METHOD AND OPTICAL DISC DEVICE - There is provided a skew detection method including supplying reproduction signals, which are respectively reproduced approximately simultaneously from at least two tracks including a first adjacent track and a second adjacent track located on both sides of a main track, to first and second filters, causing a combining unit to combine output signals of the first and second filters with a reproduction signal which is reproduced from the main track approximately simultaneously with the first adjacent track and the second adjacent track so as to cancel crosstalk, causing a coefficient control unit to obtain an error with a target value of the output signal of the combining unit and control coefficients of the first and second filters so as to reduce the error, and detecting a skew of an optical disc from values of coefficients of predetermined taps of the first and second filters. | 03-06-2014 |
20140068642 | OPTICAL PICKUP AND OPTICAL DISC DEVICE - There is provided an optical pickup including a light source, an objective lens configured to focus light from the light source onto one signal face of an optical disc, the optical disc including two or more signal faces, each of the signal faces having a groove formed therein, a photodetector configured to receive returning rays from the optical disc, the photodetector having a light receiving face divided into four light receiving regions by a dividing line that is substantially parallel to a track direction of the optical disc and by a dividing line that is substantially perpendicular to the track direction, and a shading unit disposed at an incident side of the photodetector and configured to block, of returning rays from a signal face other than the one signal face of the optical disc, at least a diffracted ray that is diffracted by the groove. | 03-06-2014 |
20140140185 | PLAYBACK DEVICE AND PLAYBACK METHOD - There is provided a playback device including a light source, an objective lens that radiates light emitted onto an optical recording medium, and onto which is incident reflected light obtained from a recording surface of the optical recording medium, a condenser lens that condenses the reflected light, a photodetecting section configured to, provided that a confocal position is a focal position of the condenser lens, λ is a wavelength of light radiated onto the optical recording medium, and NA is a numerical aperture of the objective lens, extract and detect light within a range of a diameter less than 1.5λ/NA centered on an optical axis at the confocal position, and a phase difference imparting section that imparts a designated phase difference between a reflected light component from a readout track and a reflected light component from a track neighboring the readout track. | 05-22-2014 |
20140355404 | OPTICAL MEDIUM REPRODUCING APPARATUS AND OPTICAL MEDIUM REPRODUCING METHOD - An optical medium reproducing apparatus that optically reproduces an optical medium on which a plurality of tracks is formed in which a beam returning from the optical medium is divided into a first region of an outside portion and a second region of an inside region, according to the shape of the pupil of an object lens, and crosstalk between the tracks is reduced by using a first detection signal of the first region and a second detection signal of the second region. | 12-04-2014 |
20150036472 | REPRODUCING APPARATUS AND REPRODUCING METHOD - Provided is a reproducing apparatus including: an optical system that obtains a signal light by radiating light emitted from a light source and generates a reference light from the light emitted from the light source, with respect to a recording medium, and that generates first to fourth groups of the signal light beams and the reference light beams, with respect to the superposed light in which the signal light and the reference light are superposed onto each other; a light receiving unit that receives light beams of the first to fourth groups of the signal light beams and the reference light beams respectively through first to fourth light receiving elements; and a reproduction signal generation circuit that calculates a first differential signal and a second differential signal, and that generates a reproduction signal by performing an arithmetic operation using the first and second differential signals. | 02-05-2015 |
Patent application number | Description | Published |
20110230715 | ELECTRONIC ENDOSCOPE SYSTEM, AN ELECTRONIC ENDOSCOPE PROCESSOR, AND A METHOD OF ACQUIRING BLOOD VESSEL INFORMATION - The system includes an illuminating unit, an electronic endoscope, a unit for outputting first image data having different wavelength bands from the imaging signal, a unit for producing blood vessel information from the first image data, a unit for setting a given region in an image as reference value region, a unit for calculating a reference value for the blood vessel information based on second image data for a region within a reference value region, a unit for calculating relative value blood vessel information from the difference between the blood vessel information and the reference value blood vessel information, a unit for producing a simulated-color relative value blood vessel information image from the relative value blood vessel information, and a monitor for displaying a relative value blood vessel information image. | 09-22-2011 |
20110237882 | ELECTRONIC ENDOSCOPE SYSTEM - An electronic endoscope system includes a light source device for sequentially emitting plural kinds of light having different wavelength bands, an electronic endoscope for outputting image data of acquired images corresponding to the plural kinds of light sequentially illuminated to a subject tissue containing blood vessels, a setter for setting a blood vessel characteristics amount from the image data, a setter for setting a region of interest in the acquired image based on the amount, an image producer for producing a first oxygen saturation level image representing a distribution of an oxygen saturation level in the blood vessel from the image data, and an image display for displaying in simulated color a second oxygen saturation level image in which the oxygen saturation level within the region of interest is selectively enhanced. | 09-29-2011 |
20110237884 | ELECTRONIC ENDOSCOPE SYSTEM - An electronic endoscope system includes a light source device for sequentially emitting kinds of light having different wavelength bands, an electronic endoscope for sequentially illuminating the kinds of light to a subject tissue containing blood vessels, receiving the kinds of reflected light, and outputting image data corresponding to the kinds of received light, an extractor for extracting positions of a blood vessel from each image data corresponding to the kinds of light, an aligner for aligning images corresponding to the image data based on the positions, an image producer for producing an oxygen saturation level image representing the distribution of the oxygen saturation level in the blood vessel from the image data of the aligned images, and an image monitor for displaying the oxygen saturation level image in simulated color. | 09-29-2011 |
20120116159 | LIGHTING DEVICE FOR ENDOSCOPE AND ENDOSCOPE DEVICE - A lighting device includes first and second light sources, a wavelength converting member and a light quantity ratio changing unit. A first light source uses a semiconductor light emitting device as an emission source. A second light source uses, as an emission source, a semiconductor light emitting device of a different emission wavelength from the first light source. A wavelength converting member is excited for light emission by light emitted from at least one of the first light source and the second light source. The light quantity ratio changing unit changing a light quantity ratio between the light emitted from the first light source and the light emitted from the second light source. | 05-10-2012 |
20120116192 | ENDOSCOPIC DIAGNOSIS SYSTEM - An endoscopic diagnosis system accurately calculating the oxygen saturation level considering the effects of the blood vessel depth and the blood amount and displaying an oxygen saturation level distribution in simulated colors includes an endoscope device for illuminating a subject, imaging reflected light, and acquiring image signals corresponding to three or more reflected light having a wavelength range of 460 to 700 nm including a first and a second image signal corresponding to reflected light having two wavelength ranges where the light absorption coefficient changes according to the blood hemoglobin oxygen saturation level and a third image signal corresponding to reflected light having one wavelength range where the light absorption coefficient does not change; a blood amount-oxygen saturation level calculator using the acquired image signals for calculation; and a display for displaying an oxygen saturation level distribution based on the oxygen saturation level information. | 05-10-2012 |
20120154567 | ENDOSCOPE APPARATUS - The endoscope apparatus includes an illumination unit for irradiating at least three kinds of illumination light having different wavelengths including standard light, first and second reference light onto a biological object, a switching unit for periodically switching the illumination light, an imaging unit for capturing image data by the illumination light in each imaging frame, and an acquisition unit for acquiring biological function information from the captured image data. The irradiation order of illumination light is switched at least in order of the first reference light, the standard light and the second reference light, a standard image by the standard light and reference images by the reference light are acquired, and the biological function information is calculated based on the standard image and the reference images. | 06-21-2012 |
20120157768 | ENDOSCOPE SYSTEM, PROCESSOR OF ENDOSCOPE SYSTEM, AND IMAGE PRODUCING METHOD - First illumination light of a first wavelength range, in which light absorption coefficient of blood hemoglobin varies with oxygen saturation thereof, is projected into a test subject body, to capture a first image signal from the first illumination light as reflected from inside the test subject body. Then second illumination light of a second wavelength range different from the first wavelength range is projected into a test subject body, to capture a second image signal from the second illumination light as reflected from inside the test subject body. A subject image of the test subject is produced from the second image signal. Oxygen saturation levels of the test subject are calculated using the first and second image signals. According to the calculated oxygen saturation levels, color properties of the subject image are changed to produce an oxygen saturation image. | 06-21-2012 |
20120157803 | ENDOSCOPE SYSTEM AND PROCESSOR APPARATUS THEREOF, AND METHOD FOR GENERATING IMAGES - An image of a portion to be observed is captured while first light beams are applied thereto. Thereby, a first image signal of a first frame is obtained. The first light beams are in a wavelength range in which an absorption coefficient varies in accordance with a change in oxygen saturation of hemoglobin in blood. An image of the portion to be observed is captured while second light beams are applied thereto. Thereby, a second image signal of a second frame is obtained. The second light beams have a broadband wavelength range. Blood volume and oxygen saturation are obtained from the first and second image signals. A blood volume image representing information on the blood volume in pseudo-color and an oxygen saturation image representing information on the oxygen saturation in pseudo-color are generated. The blood volume image is displayed simultaneously with the oxygen saturation image on a display device. | 06-21-2012 |
20120179013 | ENDOSCOPE SYSTEM AND PROCESSOR APPARATUS THEREOF, AND IMAGE GENERATING METHOD - An image of a target portion is captured while first light beams are applied thereto. Thereby, a first image signal is obtained. The first light beams are in a wavelength range in which an absorption coefficient varies in accordance with a change in oxygen saturation of hemoglobin in blood. An image of the target portion is captured while second light beams in a broadband wavelength range are applied thereto. Thereby, second and third image signals are obtained. Oxygen saturation is calculated from the first to third image signals. Reliability of the oxygen saturation is calculated from one of the first to third image signals. Color difference signals each corresponding to the oxygen saturation is obtained from a color table. Each of the color difference signals is corrected in accordance with the reliability. An oxygen saturation image is generated based on corrected color difference signals and displayed. | 07-12-2012 |
20120179050 | ENDOSCOPE DIAGNOSIS SYSTEM - An endoscopic diagnosis system includes a white light source, a narrowband light source for emitting narrowband light having a given wavelength range of blue light, an image sensor receiving reflected light of white light and the narrowband light emitted with a given emission ratio to illuminate a subject from the subject to acquire a narrowband light image, and an image processor for calculating an enhanced luminance signal where a blue image signal of the narrowband light image is enhanced, calculating a hemoglobin index representing blood level in a medium to deep layer of a mucous membrane from a green image signal and a red image signal of the narrowband light image, calculating an enhanced color difference signal enhancing red according to a value of the hemoglobin index, and producing an image signal of an endoscopic image for display. | 07-12-2012 |
20120253157 | BLOOD INFORMATION MEASURING METHOD AND APPARATUS - In a special mode, a superficial wavelength set having plural types of narrow band light in a blue wavelength band of 400 to 500 nm is chosen. The plural types of narrow band light are successively applied to an internal body portion. A CCD captures images of the internal body portion under the narrow band light. A blood information calculation section calculates an oxygen saturation level of hemoglobin in a blood vessel based on an image signal. A comparison section compares the calculated oxygen saturation level with a predetermined threshold value. When the oxygen saturation level is less than the threshold value, a hypoxic region detection signal is outputted to a wavelength set switching section. The wavelength set switching section switches from the superficial wavelength set to a middle wavelength set and to a deep wavelength set, so the oxygen saturation levels at middle and deep depths are measured. | 10-04-2012 |
20120253158 | BLOOD INFORMATION MEASURING METHOD AND APPARATUS - In a special mode, a superficial layer wavelength set, a middle layer wavelength set, and a deep layer wavelength set are selected successively. Each wavelength set is composed of 3 different types of narrowband light applied successively to an internal body portion. A wavelength set table specifies the number of repetitions of each wavelength set. A controller controls a wavelength band switching element to apply every type of the narrowband light of each wavelength set, and to apply each wavelength set for the number of repetitions specified by the wavelength set table. A CCD captures images of the internal body portion under illumination of the narrowband light of the respective wavelength sets. A blood information calculation section calculates oxygen saturation levels of hemoglobin in blood vessels in the superficial, middle, and deep layers based on image signals, respectively. This provides information on cancer progression. | 10-04-2012 |
20120265041 | ELECTRONIC ENDOSCOPE SYSTEM AND METHOD FOR CONTROLLING THE SAME - A light source device of an electronic endoscope system has first and second semiconductor lasers. In a vascular observation mode, one of the semiconductor lasers is used in a full light state (100% rated output) while the other is used in a reduced light state (for example, 10% rated output). First and second images of an internal body portion are captured with a color imaging device under illumination of two patterns, respectively. Correlation operation of pixel values of three colors is performed between the two images. Noise components, caused by the first or second semiconductor lasers in the light reduced state, are removed from the first and second images. An oxygen saturation level of blood in a blood vessel is calculated using the first and second images with the noise components removed. | 10-18-2012 |
20130018242 | BLOOD INFORMATION MEASURING APPARATUS AND METHODAANM YAMAGUCHI; HiroshiAACI KanagawaAACO JPAAGP YAMAGUCHI; Hiroshi Kanagawa JPAANM Saito; TakaakiAACI KanagawaAACO JPAAGP Saito; Takaaki Kanagawa JP - In a blood information measuring apparatus, a plurality of types of light of a superficial layer wavelength set, a middle layer wavelength set, and a deep layer wavelength set are successively applied to a detected hypoxic region. A CCD captures an image under the light of each wavelength set, and an oxygen saturation image is produced independently from one wavelength set to another. A wavelength set determination section creates a histogram of each oxygen saturation image. The wavelength set determination section chooses one of the wavelength sets corresponding to the histogram having a maximum variance as an actual imaging wavelength set. Actual imaging operation is performed using the actual imaging wavelength set, and an oxygen saturation level of each pixel is calculated. The oxygen saturation level is reflected in the image, and the image is displayed on a monitor. | 01-17-2013 |
20130030268 | ENDOSCOPE SYSTEM AND METHOD FOR CONTROLLING THE SAME - In a blood information acquisition mode for obtaining an oxygen saturation level of hemoglobin in a blood vessel, preliminary imaging and main imaging are performed. In the preliminary imaging, a normal internal body part is imaged. A blood information calculation section calculates an oxygen saturation level of each pixel. A changing section corrects standard reference data in accordance with a difference between an average of the oxygen saturation levels obtained in the preliminary imaging and a predetermined standard value of the oxygen saturation level. In the subsequent main imaging, corrected reference data is used to calculate an oxygen saturation level of each pixel corresponding to an internal body part being observed. | 01-31-2013 |
20130041218 | ENDOSCOPIC DEVICE - An endoscopic device that irradiates a plurality of illuminating light having different spectrums from each other onto a subject at a front edge of an endoscope inserting module and captures the subject to obtain an observation image The endoscopic device includes an illuminating module, an imaging module, a light intensity ratio control module, and a color tone correcting module. The illuminating module generates the plurality of illuminating light. The imaging module captures the subject and output an image signal of the observation image. The light intensity ratio control module controls the illuminating module to irradiate the plurality of illuminating light onto the subject with a set light intensity ratio by setting the light intensity ratio of the plurality of illuminating light. The color tone correcting module corrects the color tone to obtain the observation image with substantially the same color tone even though the light intensity ratio is changed. | 02-14-2013 |
20130053703 | ENDOSCOPIC DIAGNOSIS SYSTEM - An endoscopic diagnosis system includes a light source unit for emitting green and red light, blue and green light, or white light and excitation light having different central wavelengths for causing an autofluorescent substance to emit autofluorescence, an imaging unit for receiving reflected light from the observation region to acquire a reflected light image when the observation region is illuminated with the illumination light emitted, and receiving autofluorescence that is emitted from the autofluorescent substance, absorbed by blood, and decreases according to the amount of the blood to acquire an autofluorescence image when the observation region is irradiated with the excitation light emitted, and an image correction unit for correcting the autofluorescence image based on the reflected light image. | 02-28-2013 |
Patent application number | Description | Published |
20110123492 | IMMUNITY-INDUCING AGENT - The invention relates to an immunity-inducing agent comprising, as an active ingredient, at least one polypeptide having immunity-inducing activity that is selected from among polypeptides (a), (b), and (c): (a) a polypeptide of at least seven contiguous amino acids of the amino acid sequence shown by any even SEQ ID number selected from SEQ ID NOs: 2 to 30 listed in the Sequence Listing; (b) a polypeptide of at least seven amino acids having 90% or more sequence identity with the polypeptide (a); and (c) a polypeptide comprising the polypeptide (a) or (b) as a partial sequence thereof, or a recombinant vector comprising a polynucleotide encoding said polypeptide and capable of expressing said polypeptide in vivo. | 05-26-2011 |
20110129478 | PHARMACEUTICAL COMPOSITION FOR TREATMENT AND PREVENTION OF CANCER - An antibody or a fragment thereof having immunoreactivity to a polypeptide comprising not less than 7 continuous amino acids in the CD179b protein, which was identified as a cancer antigen protein specifically expressed on the surfaces of cancer cells, can be used as a pharmaceutical composition for therapy and/or prophylaxis of cancer. | 06-02-2011 |
20110130343 | IMMUNITY-INDUCING AGENT AND METHOD FOR DETECTION OF CANCER - An immunity-inducing agent comprising as an effective ingredient(s) at least one polypeptide selected from the following polypeptides, the polypeptide(s) having an immunity-inducing activity/activities, or as an effective ingredient(s) a recombinant vector(s) which comprise(s) a polynucleotide(s) encoding the polypeptide(s) and is/are capable of expressing the polypeptide(s) in vivo can be used for therapy and/or prophylaxis of cancer: (a) a polypeptide consisting essentially of not less than 7 consecutive amino acids in any one of the amino acid sequences shown in the odd number IDs of SEQ ID NOs:3 to 95 in SEQUENCE LISTING; (b) a polypeptide having a sequence identity of not less than 90% with the polypeptide (a) and consisting essentially of not less than 7 amino acids; and (c) a polypeptide comprising the polypeptide (a) or (b) as a partial sequence thereof. Further, since the above polypeptide(s) react(s) with antibodies existing specifically in serum of a cancer patient, it is possible to detect cancer in a living body by measuring the antibodies in a sample. | 06-02-2011 |
20110256144 | PHARMACEUTICAL COMPOSITION FOR TREATMENT AND PREVENTION OF CANCERS - The present invention relates to a pharmaceutical composition for treatment and/or prevention of cancer, which comprises, as an active ingredient, an antibody or fragment thereof having an immunological reactivity with a CAPRIN-1 protein or a fragment thereof comprising 7 or more consecutive amino acids. | 10-20-2011 |
20120301471 | PHARMACEUTICAL COMPOSITION FOR TREATING AND/OR PREVENTING CANCER - According to the present invention, a cancer antigen protein to be specifically expressed on the surfaces of cancer cells is identified and thus the use of an antibody targeting the cancer antigen protein as an agent for treating and/or preventing a cancer is provided. Specifically, the present invention provides a pharmaceutical composition for treating and/or preventing a cancer, which comprises an antibody or a fragment thereof as an active ingredient having immunological reactivity with a partial polypeptide of CAPRIN-1, wherein CAPRIN-1 is represented by any of the even-numbered sequences of SEQ ID NOS: 2 to 30, and wherein the partial polypeptide comprises the amino acid sequence represented by SEQ ID NO: 37 or an amino acid sequence having 80% or more sequence identity with the amino acid sequence. | 11-29-2012 |
20120301476 | PHARMACEUTICAL COMPOSITION FOR TREATING AND/OR PREVENTING CANCER - According to the present invention, a cancer antigen protein to be specifically expressed on the surfaces of cancer cells is identified and thus the use of an antibody targeting the cancer antigen protein as an agent for treating and/or preventing a cancer is provided. Specifically, the present invention provides a pharmaceutical composition for treating and/or preventing a cancer, which comprises an antibody or a fragment thereof as an active ingredient having immunological reactivity to a partial polypeptide of CAPRIN-1, which is represented by any of even-numbered sequences of SEQ ID NOS: 2 to 30, wherein the polypeptide has the amino acid sequence represented by SEQ ID NO: 37 or an amino acid sequence having 80% or more sequence identity with the amino acid sequence. | 11-29-2012 |
20120321641 | PHARMACEUTICAL COMPOSITION FOR TREATING AND/OR PREVENTING CANCER - According to the present invention, a cancer antigen protein to be specifically expressed on the surfaces of cancer cells is identified and thus the use of an antibody targeting the cancer antigen protein as an agent for treating and/or preventing a cancer is provided. Specifically, the present invention provides a pharmaceutical composition for treating and/or preventing a cancer, which comprises an antibody comprising a heavy chain variable region that comprises SEQ ID NOS: 39, 40, and 41 and a light chain variable region that comprises SEQ ID NOS: 43, 44, and 45 or a fragment thereof as an active ingredient and having immunological reactivity with a CAPRIN-1 protein. | 12-20-2012 |
20130045210 | PHARMACEUTICAL COMPOSITION FOR TREATING AND/OR PREVENTING CANCER - According to the present invention, a cancer antigen protein to be specifically expressed on the surfaces of cancer cells is identified and thus the use of an antibody targeting the cancer antigen protein as an agent for treating and/or preventing a cancer is provided. Specifically, the present invention provides a pharmaceutical composition for treating and/or preventing a cancer, which comprises an antibody or a fragment thereof as an active ingredient having immunological reactivity with a partial polypeptide of CAPRIN-1, wherein CAPRIN-1 is represented by any of the even-numbered sequences of SEQ ID NOS: 2 to 30, and wherein the partial polypeptide comprises the amino acid sequence represented by SEQ ID NO: 37 or an amino acid sequence having 80% or more sequence identity with the amino acid sequence. | 02-21-2013 |
20130071398 | PHARMACEUTICAL COMPOSITION FOR TREATING AND/OR PREVENTING CANCER - According to the present invention, a cancer antigen protein to be specifically expressed on the surfaces of cancer cells is identified and thus the use of an antibody targeting the cancer antigen protein as an agent for treating and/or preventing cancer is provided. Specifically, the present invention provides a pharmaceutical composition for treating and/or preventing a cancer, which comprises an antibody or a fragment thereof as an active ingredient having immunological reactivity with a partial polypeptide of CAPRIN-1, which is represented by any of even-numbered sequences of SEQ ID NOS: 2 to 30, wherein the polypeptide has the amino acid sequence represented by SEQ ID NO: 37 or an amino acid sequence having 80% or more sequence identity with the amino acid sequence represented by SEQ ID NO: 37. | 03-21-2013 |
20130230488 | METHOD FOR INDUCING IMMUNITY WITH A PEPTIDE FRAGMENT FROM HUMAN CAPRIN-1 - The invention relates to an immunity-inducing agent comprising, as an active ingredient, at least one polypeptide having immunity-inducing activity that is selected from among polypeptides (a), (b), and (c): (a) a polypeptide of at least seven contiguous amino acids of the amino acid sequence shown by any even SEQ ID number selected from SEQ ID NOs: 2 to 30 listed in the Sequence Listing; (b) a polypeptide of at least seven amino acids having 90% or more sequence identity with the polypeptide (a); and (c) a polypeptide comprising the polypeptide (a) or (b) as a partial sequence thereof, or a recombinant vector comprising a polynucleotide encoding said polypeptide and capable of expressing said polypeptide in vivo. | 09-05-2013 |
20140193434 | PHARMACEUTICAL COMPOSITION FOR TREATMENT AND/OR PROPHYLAXIS OF CANCER - It is intended to identify a cancer antigenic protein specifically expressed on the surface of cancer cells and to provide an antibody targeting the antigenic protein and use of the antibody as a therapeutic and/or preventive agent for cancer. The present invention provides an antibody or a fragment thereof which has immunological reactivity with a CAPRIN-1 protein, the antibody comprising a heavy chain variable region comprising amino acid sequences of SEQ ID NOs: 5, 6, and 7 and a light chain variable region comprising amino acid sequences of SEQ ID NOs: 9, 10, and 11, and a pharmaceutical composition for treatment and/or prevention of cancer, comprising this antibody or fragment as an active ingredient. | 07-10-2014 |
20140199311 | PHARMACEUTICAL COMPOSITION FOR TREATMENT AND/OR PROPHYLAXIS OF CANCER - This invention provides an antibody targeting a cancer antigenic protein specifically expressed on the surface of cancer cells and use thereof as a therapeutic and/or preventive agent for cancer. More specifically, the present invention provides an antibody, or a fragment thereof which has immunological reactivity with a CAPRIN-1 protein, the antibody comprising a heavy chain variable region comprising complementarity determining regions of SEQ ID NOs: 5, 6, and 7 and a light chain variable region comprising complementarity determining regions of SEQ ID NOs: 9, 10, and 11, and a pharmaceutical composition for treatment and/or prevention of cancer, comprising the same as an active ingredient. | 07-17-2014 |
20140308283 | PHARMACEUTICAL COMPOSITION FOR TREATMENT AND/OR PREVENTION OF PANCREATIC CANCER - This invention relates to a pharmaceutical composition for treatment and/or prevention of pancreatic cancer, comprising as an active ingredient an antibody or a fragment thereof which has immunological reactivity with a CAPRIN-1 protein or a fragment thereof comprising 7 to 12 or more consecutive amino acid residues. | 10-16-2014 |
Patent application number | Description | Published |
20100007912 | IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, COMPUTER-READABLE MEDIUM AND COMPUTER DATA SIGNAL - An image processing apparatus includes an image receiving unit, an extraction unit, a determination unit, an area conversion unit and an image concealing unit. The image receiving unit receives an image. The extraction unit extracts a portion having been additionally written in the image received by the image receiving unit. The determination unit determines an area to be concealed in the received image based on the additionally written portion extracted by the extraction unit. The area conversion unit converts the area determined by the determination unit. The image concealing unit conceals the area determined by the determination unit in the received image using an area obtained by the conversion of by the area conversion unit. | 01-14-2010 |
20100008585 | IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, COMPUTER-READABLE MEDIUM AND COMPUTER DATA SIGNAL - An image processing apparatus includes an image receiving unit, first and second extraction units, a threshold value calculation unit, a concealment area determination unit and an image concealing unit. The image receiving unit receives an image. The first extraction unit extracts, using a first threshold value, a first area including at least a part of a portion having been additionally written in the received image. The threshold value calculation unit calculates a second threshold value based on a feature in a third area that is arranged along with the first area. The second extraction unit extracts, using the second threshold value, a second area including the portion having been additionally written in the image. The concealment area determination unit determines an area to be concealed in the image, based on the second area. The image concealing unit conceals the determined area in the image. | 01-14-2010 |
20110038533 | IMAGE PROCESSING APPARATUS AND COMPUTER READABLE MEDIUM - An image processing apparatus includes a definition reducing section, a color region extracting section, a concealing image generating section and an image combining section. The definition reducing section, based on a received image, generates an image having a lower definition than the received image. The color region extracting section extracts a color region from the low definition image generated by the definition reducing section. The concealing image generating section, based on the color region extracted by the color region extracting section, converts the color region into a concealing region for concealing a part of the received image and, generates a concealing image including the concealing region. The image combining section combines the received image with the concealing image generated by the concealing image generating section. | 02-17-2011 |
20120093400 | DIFFERENCE DETECTING APPARATUS, DIFFERENCE OUTPUT APPARATUS, AND MEDIUM - A difference detecting apparatus include: an image receiving unit that receives at least one or more first images and at least one or more second images; and an exception region acquiring unit that acquires (i) first exception regions that include non-background-color pixels of a first common image, (ii) second exception regions that include non-background-color pixels of a second common image, or (iii) both of the first exception regions and the second exception regions. The difference detecting apparatus includes a first difference detecting unit that detects differences between a first image of attention which is at least one of the first images and a second image of attention which is one of the second images corresponding to the first image of attention except for the first exception regions, the second exception regions, or a union or product of sets of the first exception regions and the second exception regions. | 04-19-2012 |
20120243796 | IMAGE PROCESSING APPARATUS, COMPUTER READABLE MEDIUM STORING PROGRAM, AND IMAGE PROCESSING METHOD - An image processing apparatus includes the following elements. An image receiving unit receives a first image and a second image. A first specified area specifying unit allows a user to specify a first specified area in the first image. A first comparison area setting unit sets a first comparison area in the first image on the basis of the first specified area. A second comparison area setting unit sets a second comparison area in the second image. A geometric difference correction unit corrects a difference in geometric properties between a first comparison image in the first comparison area and a second comparison image in the second comparison area. An image output unit outputs an image in which the second comparison image is superimposed on the first comparison image or a difference image between the first comparison image and the second comparison image. | 09-27-2012 |
Patent application number | Description | Published |
20100090874 | Digital-Analog conversion circuit and output data correction method of the same - A digital-analog conversion circuit includes a correction unit that adds a correction bit to a lower-order bit of externally input first digital input data and outputs second digital input data, and a conversion unit that receives the second digital input data and outputs an analog value, and the correction unit generates the second digital input data by manipulating data of a lower-order bit of the second digital input data around a point at which an error between the analog value and an expected value set for the first digital input data becomes larger than a preset value. | 04-15-2010 |
20110053651 | Electronic apparatus - Electronic apparatus which may include a main body portion having a back surface and a keyboard located at a part of the main body portion other than the main body portion back surface, a display portion having a back surface and a display screen on a display surface opposite the display portion back surface, and a coupling portion that rotatably couples the main body portion and the display portion. In a closed state, the main body portion back surface and the display portion back surface may face each other and the electronic apparatus may be operable as a portable apparatus in which all of the display surface having the display screen except for a relatively small perimeter portion thereof may be usable as a display in at least a direction corresponding to the width thereof. In an open state, the electronic apparatus may be operable as a personal computer. | 03-03-2011 |
20120187452 | SEMICONDUCTOR ELEMENT - According to one embodiment, the semiconductor element includes a first semiconductor layer. The first semiconductor layer contains Al | 07-26-2012 |
20130240899 | NITRIDE SEMICONDUCTOR DEVICE - According to one embodiment a nitride semiconductor device includes a first, a second and a third semiconductor layer, a first and a second main electrode and a control electrode. The first layer made of a nitride semiconductor of a first conductivity type is provided on a substrate. The second layer made of a nitride semiconductor of a second conductivity type is provided on the first layer. The third layer made of a nitride semiconductor is provided on the second layer. The first electrode is electrically connected with the second layer. The second electrode is provided at a distance from the first electrode and electrically connected with the second layer. The control electrode is provided within a first trench via an insulating film. The first trench is disposed between the first and the second main electrodes, penetrates the third and the second layers, and reaches the first layer. | 09-19-2013 |
20130277763 | POWER SEMICONDUCTOR DEVICE - In general, according to one embodiment, a power semiconductor device includes a first pillar region, a second pillar region, and an epitaxial layer of a first conductivity type on a first semiconductor layer. The first pillar region is composed of a plurality of first pillar layers of a second conductivity type and a plurality of second pillar layers of the first conductivity type alternately arranged along a first direction. The second pillar region is adjacent to the first pillar region along the first direction and includes a third pillar layer of the second conductivity type, a fourth pillar layer of the first conductivity type, and a fifth pillar layer of the second conductivity type in this order along the first direction. A plurality of second base layers of the second conductivity type electrically connected, respectively, onto the third pillar layer and the fifth pillar layer and spaced from each other. | 10-24-2013 |
20140015044 | SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING SAME - According to an embodiment, a semiconductor device includes a second semiconductor layer provided on a first semiconductor layer and including first pillars and second pillars. A first control electrode is provided in a trench of the second semiconductor layer and a second control electrode is provided on the second semiconductor layer and connected to the first control electrode. A first semiconductor region is provided on a surface of the second semiconductor layer except for a portion under the second control electrode. A second semiconductor region is provided on a surface of the first semiconductor region, the second semiconductor region being apart from the portion under the second control electrode and a third semiconductor region is provided on the first semiconductor region. A first major electrode is connected electrically to the first semiconductor layer and a second major electrode is connected electrically to the second and the third semiconductor region. | 01-16-2014 |
20140070852 | POWER SEMICONDUCTOR DEVICE - According to one or more embodiments of the present invention, a power semiconductor device comprise a plurality of gate electrodes, first to third electrodes, and first to fifth semiconductor layers The second semiconductor layer is formed on the first semiconductor layer. A plurality of the third semiconductor layers are formed in the second semiconductor layer and arranged in a direction perpendicular to the stacking direction. The fourth semiconductor layer is formed on the second semiconductor layer. The fifth semiconductor layer is formed on the fourth semiconductor layer. The gate electrodes are formed above the second semiconductor layer and each gate electrode is arranged between the adjacent third semiconductor layers. The first electrodes are formed below the gate electrodes. One of the first electrodes is connected to the gate electrode. One of the first electrodes is connected to the third electrode. | 03-13-2014 |
20140084361 | POWER SEMICONDUCTOR DEVICE - A power semiconductor device includes first to fifth electrodes, first to sixth semiconductor layers, and several first pillar layers. The first semiconductor layer is formed on the first electrode. The second semiconductor layer is formed on the first semiconductor layer. Several first pillar layers are arranged parallel with the second semiconductor layer. The third and fourth semiconductor layers are formed on the second semiconductor layer. The fourth electrode is formed on the first pillar layer adjacent to the third semiconductor layer. The fifth electrode is formed on the first pillar layer adjacent to the fourth semiconductor layer. The concentration of dopant of the first pillar layer positioning between the first pillar layer under the fourth electrode and the first pillar layer under the fifth electrode is lower than the concentration of dopant of the first pillar layer under the fourth electrode and the first pillar layer under the fifth electrode. | 03-27-2014 |
20140103425 | SEMICONDUCTOR DEVICE - A semiconductor device includes a first semiconductor layer of a first conductivity type. A second semiconductor layer of a second conductivity type is on the first semiconductor layer. A third semiconductor layer is on the second semiconductor layer. A fourth semiconductor layer is selectively in the first semiconductor layer. A first trench and second trench penetrate from a surface of the third layer through the second layer to reach the first layer. An embedded electrode is in the first trench. A control electrode is above the embedded electrode via an insulating film. A lower end of the second trench is connected to the fourth semiconductor layer. A first main electrode is electrically connected to the first layer. A second main electrode is provided in the second trench. A Schottky junction is formed by the first layer and the second main electrode at a sidewall of the second trench. | 04-17-2014 |
20140167838 | POWER SEMICONDUCTOR DEVICE - According to one or more embodiments of the present invention, a method for driving a power semiconductor device that has a source electrode, a drain electrode, a semiconductor layer formed between the source electrode and the drain electrode, a plurality of gate electrodes formed within the semiconductor layer, and a plurality of conductive layers that are formed between the gate electrodes and the drain electrode and in electrical communication with the gate electrodes. The method comprises providing a first electric potential to the source electrode, providing a second electric potential to the drain electrode, providing a third electric potential to the gate electrodes, providing a first electric potential to at least one of the conductive layers, and providing a third electric potential to at least another one of the conductive layers. | 06-19-2014 |
20140246700 | NITRIDE SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING SAME - According to one embodiment, a nitride semiconductor device includes a first semiconductor, a second semiconductor layer, a third semiconductor layer, a fourth semiconductor layer, a first electrode, a second electrode and a third electrode. The first, second and fourth semiconductor layers include a nitride semiconductor. The second semiconductor layer is provided on the first semiconductor layer, has a band gap not less than that of the first semiconductor layer. The third semiconductor layer is provided on the second semiconductor layer. The third semiconductor layer is GaN. The fourth semiconductor layer is provided on the third semiconductor layer to have an interspace on a part of the third semiconductor layer, has a band gap not less than that of the second semiconductor layer. The first electrode is provided on a portion of the third semiconductor layer. The fourth semiconductor layer is not provided on the portion. | 09-04-2014 |
Patent application number | Description | Published |
20090189330 | Medium Feed Control in an Image Forming Apparatus - A method of controlling medium feeding in an image forming apparatus includes an image forming step of forming an image on a medium in response to an image forming request, and a feed control step of selecting one of a plurality of first medium feed units that feeds a medium corresponding to attribute information that matches medium attribute information included in the image forming request, and of selecting a second medium feed unit upon finding matching between attribute information indicative of a medium fed by the second medium feed unit and the medium attribute information included in the image forming request if none of the first medium feed units feeds a medium corresponding to the attribute information that matches the medium attribute information included in the image forming request. | 07-30-2009 |
20090190936 | Image Forming Device, Printing Medium Supplying Method, and Computer-Readable Recording Medium - In an image forming device including a control unit to control the image forming device to perform a job of image formation, the control unit is arranged so that, when a size of a printing medium detected by a detection unit is not in agreement with a printing medium size indicated by information contained in a printing request, the control unit causes the printing medium to be ejected from the image forming device without causing an image formation unit to form an image on the printing medium, and causes an image holding unit to hold data of the image. | 07-30-2009 |
20100104295 | IMAGE FORMING APPARATUS AND OUTPUT SETTING METHOD OF CONSUMED STATUS OF CONSUMABLE ITEMS OF THE IMAGE FORMING APPARATUS - An image forming apparatus which uses a consumable item is disclosed. The image forming apparatus includes a consumed status detecting unit which detects a value of the consumed status of the consumable item, a determining unit which determines whether to output an exchange message of the consumable item by comparing the value of the consumed status of the consumable item detected by the consumed status detecting unit with a predetermined value, an exchange message output setting unit which sets presence or non-presence of an output of the exchange message, and a consumed status output setting unit which sets presence or non-presence of an output of the consumed status of the consumable item detected by the consumed status detecting unit. | 04-29-2010 |
20110091223 | IMAGE FORMING APPARATUS AND OUTPUT SETTING METHOD OF CONSUMED STATUS OF CONSUMABLE ITEMS OF THE IMAGE FORMING APPARATUS - An image forming apparatus which uses a consumable item is disclosed. The image forming apparatus includes a consumed status detecting unit which detects a value of the consumed status of the consumable item, a determining unit which determines whether to output an exchange message of the consumable item by comparing the value of the consumed status of the consumable item detected by the consumed status detecting unit with a predetermined value, an exchange message output setting unit which sets presence or non-presence of an output of the exchange message, and a consumed status output setting unit which sets presence or non-presence of an output of the consumed status of the consumable item detected by the consumed status detecting unit. | 04-21-2011 |
20120027429 | IMAGE FORMING APPARATUS AND OUTPUT SETTING METHOD OF CONSUMED STATUS OF CONSUMABLE ITEMS OF THE IMAGE FORMING APPARATUS - An image forming apparatus which uses a consumable item is disclosed. The image forming apparatus includes a consumed status detecting unit which detects a value of the consumed status of the consumable item, a determining unit which determines whether to output an exchange message of the consumable item by comparing the value of the consumed status of the consumable item detected by the consumed status detecting unit with a predetermined value, an exchange message output setting unit which sets presence or non-presence of an output of the exchange message, and a consumed status output setting unit which sets presence or non-presence of an output of the consumed status of the consumable item detected by the consumed status detecting unit. | 02-02-2012 |
20120308245 | IMAGE FORMING APPARATUS AND OUTPUT SETTING METHOD OF CONSUMED STATUS OF CONSUMABLE ITEMS OF THE IMAGE FORMING APPARATUS - An apparatus in which a plurality of consumable items are loadable to the apparatus. The apparatus includes a consumption status detecting unit to detect a respective consumption status of each of the consumable items, a consumption information output setting unit to set whether an exchange message for each of the consumable items is to be output, and a consumable item information output unit to output the exchange message, which is indicative of an exchange time of the respective consumable item, based on the respective consumption statuses detected by the consumption status detecting unit and the setting of the consumption information output setting unit. | 12-06-2012 |
20130136463 | IMAGE FORMING APPARATUS AND OUTPUT SETTING METHOD OF CONSUMED STATUS OF CONSUMABLE ITEMS OF THE IMAGE FORMING APPARATUS - An apparatus in which a plurality of consumable items are loadable to the apparatus. The apparatus includes a consumption status detecting unit to detect a respective consumption status of each of the consumable items, a consumption information output setting unit to set whether an exchange message for each of the consumable items is to be output, and a consumable item information output unit to output the exchange message, which is indicative of an exchange time of the respective consumable item, based on the respective consumption statuses detected by the consumption status detecting unit and the setting of the consumption information output setting unit. | 05-30-2013 |