Patents by Inventor Yuji Sakai
Yuji Sakai has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9798969Abstract: An information processing device that includes a coil antenna is configured to receive an external magnetic field and thereby generate power, and a first IC chip and a second IC chip each connected in parallel to the coil antenna and configured to receive power supplied from the coil antenna. Power received by the first IC chip from the coil antenna is different from power received by the second IC chip from the coil antenna.Type: GrantFiled: December 1, 2014Date of Patent: October 24, 2017Assignee: SONY CORPORATIONInventor: Yuji Sakai
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Patent number: 9753281Abstract: A scanning endoscope includes: an optical fiber that guides light emitted from a light source section, and emits the light from a distal end; an actuator that expands and contracts to scan with the light emitted from the distal end of the optical fiber; a ferrule that transmits, to the optical fiber, force corresponding to the expansion and contraction of the actuator; a ferrule holding part that holds the ferrule; a lens holding part that is formed of a cylindrical member provided outside the optical fiber along the optical fiber, and holds a lens, the lens receiving the light emitted from the distal end of the optical fiber; and an absorption part that absorbs vibration, in a longitudinal direction of the cylindrical member, of at least one of the ferrule holding part and the lens holding part.Type: GrantFiled: September 20, 2016Date of Patent: September 5, 2017Assignee: OLYMPUS CORPORATIONInventors: Hiroyuki Takizawa, Yuji Sakai, Daiki Ariyoshi, Soichiro Koshika
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Publication number: 20170131541Abstract: A scanning type endoscope includes a light guide section configured to guide illumination light, a ferrule provided along the light guide section, an actuator configured to vibrate the ferrule to thereby swing a distal end of the light guide section, a cylindrical member configured to include a space containing the light guide section, the ferrule and the actuator and being provided along the light guide section, and a damping section configured to fix the ferrule to the cylindrical member and absorb vibration of the ferrule, in which the damping section is formed of a ferrule holding member configured to hold a proximal end of the ferrule and a ring-shaped member configured to fix the ferrule holding member to the cylindrical member, be disposed near a joint in the cylindrical member connected to holding member and be made of a material that absorbs vibration of the ferrule.Type: ApplicationFiled: January 23, 2017Publication date: May 11, 2017Applicant: OLYMPUS CORPORATIONInventors: Yuji SAKAI, Hiroyuki TAKIZAWA, Daiki ARIYOSHI, Soichiro KOSHIKA
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Patent number: 9629517Abstract: A scanning endoscope system includes: a fiber that guides illuminating light emitted from a light source; a first actuator provided on a side of the fiber, the first actuator expanding/contracting according to an applied voltage, thereby swinging the fiber; a second actuator disposed at a position facing the first actuator across the fiber, the second actuator expanding/contracting according to an applied voltage, thereby swinging the fiber; and a drive signal output section that applies a first drive signal that varies with reference to a first voltage that brings the first actuator into a contracted state to the first actuator and applies a second drive signal that varies with reference to a second voltage that brings the second actuator into a contracted state to the second actuator.Type: GrantFiled: May 5, 2014Date of Patent: April 25, 2017Assignee: OLYMPUS CORPORATIONInventors: Yuji Sakai, Yoshinari Okita
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Patent number: 9620394Abstract: In one embodiment, a cleaning member has an annular part and an opening positioned radially inside the annular part, and can be moved up and down between a first position and a second position relative to a cleaning nozzle. For cleaning of the back surface of the wafer, the cleaning member is placed at its first position that allows a cleaning liquid to reach the back surface of the substrate through the opening of the cleaning member. For cleaning of the cup structure, the cleaning member placed at its second position higher than the first position is being rotated, and a cleaning liquid discharged from the cleaning nozzle collides with an annular part of the cleaning member and is guided to the inner surface of a cup structure.Type: GrantFiled: March 14, 2014Date of Patent: April 11, 2017Assignee: Tokyo Electron LimitedInventors: Naofumi Kishita, Yuji Sakai
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Publication number: 20170068088Abstract: A scanning endoscope includes: a light guide portion configured to guide an illuminating light that is emitted from a light source portion and irradiate an object with the illuminating light; an actuator configured to drive so as to cause a distal end of a light guide portion to scan, in order to scan the guided illuminating light over an object; a holding portion configured to hold the actuator; a rigid tubular member having a space that encloses the light guide portion, the actuator and the holding portion; and a connection portion that is interposed between the tubular member and the holding portion, and is configured to hold the holding portion at a prescribed position within the tubular member and to change shape in a circumferential direction that takes a longitudinal direction of the light guide portion as an axis when the tubular member or holding portion receives a force.Type: ApplicationFiled: November 17, 2016Publication date: March 9, 2017Applicant: OLYMPUS CORPORATIONInventors: Soichiro KOSHIKA, Yuji SAKAI, Hiroyuki TAKIZAWA, Daiki ARIYOSHI
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Publication number: 20170065156Abstract: A scanning-type endoscope includes: a scanning portion including a light guiding portion and an actuator configured to oscillate a distal end of the light guiding portion; a cylindrical member provided along the light guiding portion; and a holding portion provided on the cylindrical member and configured to hold the scanning portion at a predetermined position on a plane perpendicular to a longitudinal direction of the cylindrical member and configured so that the scanning portion is slidable in the longitudinal direction.Type: ApplicationFiled: November 17, 2016Publication date: March 9, 2017Applicant: OLYMPUS CORPORATIONInventors: Daiki ARIYOSHI, Yuji SAKAI, Soichiro KOSHIKA, Hiroyuki TAKIZAWA
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Patent number: 9585544Abstract: A scanning endoscope system includes a fiber, a first actuator that is provided laterally of the fiber to swing the fiber, a second actuator that is arranged at a position opposite to the first actuator with the fiber intervened in between to swing the fiber, and a driver unit that outputs, to the first actuator, a first drive signal having either a first waveform such that a minimum value of a voltage value, which varies periodically with a positive voltage value as a center, is not less than zero, or a second waveform such that a maximum value of a voltage value, which varies periodically with a negative voltage value as a center, is not more than zero, and configured to output, to the second actuator, a second drive signal having the same waveform as the first drive signal and different phase from the first drive signal.Type: GrantFiled: June 23, 2014Date of Patent: March 7, 2017Assignee: OLYMPUS CORPORATIONInventors: Yuji Sakai, Yoshinari Okita
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Publication number: 20170010460Abstract: A scanning endoscope includes: an optical fiber that guides light emitted from a light source section, and emits the light from a distal end; an actuator that expands and contracts to scan with the light emitted from the distal end of the optical fiber; a ferrule that transmits, to the optical fiber, force corresponding to the expansion and contraction of the actuator; a ferrule holding part that holds the ferrule; a lens holding part that is formed of a cylindrical member provided outside the optical fiber along the optical fiber, and holds a lens, the lens receiving the light emitted from the distal end of the optical fiber; and an absorption part that absorbs vibration, in a longitudinal direction of the cylindrical member, of at least one of the ferrule holding part and the lens holding part.Type: ApplicationFiled: September 20, 2016Publication date: January 12, 2017Applicant: OLYMPUS CORPORATIONInventors: Hiroyuki TAKIZAWA, Yuji SAKAI, Daiki ARIYOSHI, Soichiro KOSHIKA
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Publication number: 20170010341Abstract: A rotation determiner determines whether an antenna azimuth (AZ) angle rotates beyond a rotation range within a predetermined time based on a predicted orbit value. When the antenna AZ angle rotates beyond the rotation range, an orbit determiner determines whether an estimated satellite position is within a drivable range that the AZ angle rotates from a reference value beyond the rotation range. When the AZ angle rotates beyond the rotation range and the estimated satellite position is within the drivable range, three-axis control is executed, and the AZ angle is kept at a predetermined value. When the AZ angle rotates beyond the rotation range and the estimated satellite position is not within the drivable range, or when the AZ angle does not rotate beyond the rotation range, two-axis control is executed.Type: ApplicationFiled: May 15, 2014Publication date: January 12, 2017Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Naoya UEGO, Yuji SAKAI, Masakazu SAITO
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Patent number: 9543646Abstract: An antenna control device includes a direction acquirer to acquire a target direction in which a target object to be tracked exists, a coordinate converter to perform conversion into an Y-coordinate which is an angle between the target direction and a plane containing both the zenith direction and a Y-axis fixed horizontally within a rotation range of the vertical axis, and into a X-coordinate which is an angle between the zenith direction and a projection of the target direction projected onto the plane. A drive command value arithmetic processor commands a vertical axis angle value obtained by multiplying the Y-coordinate by a coefficient. The arithmetic processor calculates the command value for each of the horizontal axis and the cross horizontal axis such that difference between the pointing direction of the antenna and the target direction is less than or equal to an allowable value.Type: GrantFiled: January 15, 2015Date of Patent: January 10, 2017Assignee: Mitsubishi Electric CorporationInventors: Koji Yoshida, Naoya Uego, Yuji Sakai, Masanobu Horimoto
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Patent number: 9530198Abstract: To provide a method for controlling an X-ray image diagnostic apparatus and an X-ray generation device equipped with an ABS system tracking movement of an object position without an operator performing setting operation for a region of interest (ROI), the determination condition storage unit (6i) storing ROI position determination conditions in which image statistical information is used for defining conditions to determine a position of an ROI in an X-ray image out of plural blocks generated by dividing the X-ray image into plural regions, the first block statistical information calculation unit (6f) calculating the image statistical information for each of plural blocks, and the region-of-interest position selection unit (6g) selecting a block that serves as an ROI from among plural blocks using the ROI position determination conditions and the image statistical information of each block are provided.Type: GrantFiled: March 18, 2013Date of Patent: December 27, 2016Assignee: HITACHI, LTD.Inventors: Konosuke Temmei, Yuji Sakai, Tadashi Nakamura
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Publication number: 20160336652Abstract: An antenna control device includes a direction acquirer to acquire a target direction in which a target object to be tracked exists, a coordinate converter to perform conversion into an Y-coordinate which is an angle between the target direction and a plane containing both the zenith direction and a Y-axis fixed horizontally within a rotation range of the vertical axis, and into a X-coordinate which is an angle between the zenith direction and a projection of the target direction projected onto the plane. A drive command value arithmetic processor commands a vertical axis angle value obtained by multiplying the Y-coordinate by a coefficient. The arithmetic processor calculates the command value for each of the horizontal axis and the cross horizontal axis such that difference between the pointing direction of the antenna and the target direction is less than or equal to an allowable value.Type: ApplicationFiled: January 15, 2015Publication date: November 17, 2016Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Koji YOSHIDA, Naoya UEGO, Yuji SAKAI, Masanobu HORIMOTO
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Publication number: 20160307091Abstract: [Object]To provide an information processing device that, when a plurality of IC chips for performing contactless communication are connected to a single coil antenna, can appropriately supply power to the IC chips according to communication characteristics required for the respective IC chips. [Solution]There is provided an information processing device including a coil antenna configured to receive an external magnetic field and thereby generate power, and a first IC chip and a second IC chip each connected in parallel to the coil antenna and configured to receive power supplied from the coil antenna. Power received by the first IC chip from the coil antenna is different from power received by the second IC chip from the coil antenna.Type: ApplicationFiled: December 1, 2014Publication date: October 20, 2016Inventor: YUJI SAKAI
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Patent number: 9384547Abstract: In order to follow the ABS conditions when the movement of the object position, such as the movement of an object or the movement of an X-ray tube, occurs during fluoroscopy, an X-ray image diagnostic apparatus includes a histogram generation unit 6b that generates a histogram showing the distribution of brightness values of an X-ray image of an object; an object region detection unit 6c that detects an object region, which is a region where the object is imaged, in the X-ray image on the basis of the histogram; and an X-ray condition determination unit 2a that determines X-ray conditions defining an output of X-rays so that a brightness value representing the object region approaches a target brightness value of the object region set in advance.Type: GrantFiled: July 12, 2012Date of Patent: July 5, 2016Assignee: Hitachi, Ltd.Inventors: Konosuke Temmei, Tadashi Nakamura, Yuji Sakai
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Patent number: 9345396Abstract: A scanning endoscope system has a light guide portion that guides an illuminating light, a drive portion capable of causing the light guide portion to swing so that an irradiation position of the illuminating light draws a locus corresponding to a predetermined scanning pattern, a light detecting portion that receives a return light of the illuminating light and outputs a signal, a control portion that drives the drive portion to perform scan so that the irradiation position of the illuminating light becomes a locus in a spiral shape, and an image generating portion that generates an image of an object based on a signal outputted from the light detecting portion in a predetermined timing, wherein the control portion further performs control for driving the drive portion so that the irradiation position of the illuminating light circles on a same circumference in the predetermined timing.Type: GrantFiled: January 23, 2014Date of Patent: May 24, 2016Assignee: OLYMPUS CORPORATIONInventors: Jun Hasegawa, Katsumi Hirakawa, Yuji Sakai
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Publication number: 20160126626Abstract: A vertical axis driver drives a vertical axis for azimuth angle tracking. A horizontal axis driver drives a horizontal axis for elevation angle tracking. A cross horizontal axis driver drives a cross horizontal axis to which an antenna is attached, that is rotatable around an axis orthogonal to the horizontal axis. An arithmetic processing controller generates a drive signal of a constant azimuth angle the vertical axis when a maximum elevation angle of the antenna is greater than or equal to a set angle in a path of the target object in a single time of continuous tracking. When the maximum elevation angle of the antenna is less than the set angle in the path of the target object in the single time of continuous tracking, the controller issues a drive command of an azimuth angle direction to the vertical axis.Type: ApplicationFiled: February 27, 2014Publication date: May 5, 2016Applicant: Mitsubishi Electric CorporationInventors: Yuji SAKAI, Masanobu HORIMOTO, Masakazu SAITO
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Publication number: 20160093539Abstract: There is provided a technique for easily inspecting the modification state of a film in a semiconductor substrate. A modification processing device modifies a film by irradiating a semiconductor substrate with pulsed light emitted from a light irradiation part. The modification processing device includes an electromagnetic wave detection part for detecting an electromagnetic wave pulse including a millimeter wave or a terahertz wave radiated from the semiconductor substrate in response to the irradiation with the pulsed light. The modification processing device further includes a modification determination part for determining the modification state, based on the intensity of the electromagnetic wave pulse.Type: ApplicationFiled: September 25, 2015Publication date: March 31, 2016Inventors: Hidetoshi NAKANISHI, Akira ITO, Iwao KAWAYAMA, Masayoshi TONOUCHI, Yuji SAKAI
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Publication number: 20160081530Abstract: An endoscope system includes: an endoscope having a field of view in front of a distal end portion of an insertion portion; an insertion assisting instrument including a conduit having an inner portion through which the insertion portion can be inserted and an angle operation portion that varies an angle of a distal end portion of the conduit; an image generation section that generates an image corresponding to the field of view of the endoscope; a rotation angle calculation section that calculates a rotation angle indicating to what extent the insertion portion inserted through the inner portion of the conduit is rotated with respect to the insertion assisting instrument, based on the image generated by the image generation section; and an image rotation section that rotates the image so as to display the image, with the rotation angle being offset.Type: ApplicationFiled: December 4, 2015Publication date: March 24, 2016Applicant: OLYMPUS CORPORATIONInventors: Katsuichi IMAIZUMI, Tetsuhide TAKEYAMA, Yuji SAKAI, Yoshinari OKITA
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Publication number: 20160081535Abstract: A scanning endoscope includes: an optical fiber that guides illuminating light and emits the illuminating light from a distal end; an actuator for swinging a distal end of the optical fiber; a first tubular member that encloses a distal end of the optical fiber and the actuator; a holding portion that holds the optical fiber so that a distal end of the optical fiber is swung by the actuator; a second tubular member that encloses the first tubular member; a fixing portion that is disposed in an area perpendicular to a longitudinal direction of the optical fiber, the area being aligned with a position where the holding portion is disposed, and fixes the first tubular member to the second tubular member; and a distal end fixing portion that is provided at a distal end of the first tubular member.Type: ApplicationFiled: December 2, 2015Publication date: March 24, 2016Applicant: OLYMPUS CORPORATIONInventors: Yuji SAKAI, Katsushi WATANABE