Patents by Inventor Masaaki Nagashima

Masaaki Nagashima has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10670676
    Abstract: An image reconstructing method includes: obtaining pieces of first k-space data acquired from a patient, first acquisition times corresponding to the pieces of first k-space data, and pieces of biological signal information of the patient in a time series, the pieces of first k-space data being sampled with time-varying undersampling pattern; generating pieces of second k-space data by inverse transforming an intermediate data which is generated by transforming the pieces of first k-space data, the pieces of second k-space data is a data that at least part of the undersampled point is filled; generating a pseudo second acquisition time of each of the pieces of second k-space data, based on the first acquisition times; performing a rearranging process on the pieces of second k-space data, based on the second acquisition times and the pieces of biological signal information; and generating images by performing a reconstructing process on the pieces of second k-space data resulting from the rearranging process.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: June 2, 2020
    Assignee: CANON MEDICAL SYSTEMS CORPORATION
    Inventor: Masaaki Nagashima
  • Patent number: 10598740
    Abstract: A magnetic resonance imaging apparatus according to an embodiment includes a temperature sensor and a processing circuit. The temperature sensor acquires a temperature. The processing circuit calculates, based on information on an imaging sequence in which magnetic resonance imaging is to be performed, an estimated value of consumption energy of a gradient coil in a case when the imaging sequence is executed and calculates, based on the temperature acquired by the temperature sensor and the estimated value of the consumption energy, an estimated value of a temperature of the gradient coil, the temperature of the gradient coil undergoing changes as the imaging sequence is executed.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: March 24, 2020
    Assignee: Canon Medical Systems Corporation
    Inventors: Yuki Takai, Naoyuki Furudate, Masaaki Nagashima, Yutaka Machii
  • Publication number: 20190347834
    Abstract: An image reconstruction method according to an embodiment includes: collecting first k-space data at a first time and second k-space data having an undersampled pattern different from an undersampled pattern of the first k-space data at a second time different from the first time; generating intermediate data by converting data including the first k-space data and the second k-space data; generating, by inversely converting the intermediate data, third k-space data and fourth k-space data that correspond to the first k-space data and the second k-space data, respectively, and in each of which at least part of a region undersampled through the corresponding undersampled pattern is filled; and generating a magnetic resonance image at a time different from any of the first time and the second time by converting k-space data obtained by combining at least part of the third k-space data and at least part of the fourth k-space data.
    Type: Application
    Filed: May 10, 2019
    Publication date: November 14, 2019
    Applicant: Canon Medical Systems Corporation
    Inventors: Masaaki Nagashima, Hiroshi Takai
  • Publication number: 20190235037
    Abstract: An image reconstructing method includes: obtaining pieces of first k-space data acquired from a patient, first acquisition times corresponding to the pieces of first k-space data, and pieces of biological signal information of the patient in a time series, the pieces of first k-space data being sampled with time-varying undersampling pattern; generating pieces of second k-space data by inverse transforming an intermediate data which is generated by transforming the pieces of first k-space data, the pieces of second k-space data is a data that at least part of the undersampled point is filled; generating a pseudo second acquisition time of each of the pieces of second k-space data, based on the first acquisition times; performing a rearranging process on the pieces of second k-space data, based on the second acquisition times and the pieces of biological signal information; and generating images by performing a reconstructing process on the pieces of second k-space data resulting from the rearranging process.
    Type: Application
    Filed: January 31, 2019
    Publication date: August 1, 2019
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventor: Masaaki NAGASHIMA
  • Patent number: 10364786
    Abstract: A controller for an internal combustion engine includes a regenerative device and at least one of ignition timing circuitry and opening degree circuitry. The ignition timing circuitry is configured to retard an ignition timing so as to decrease a torque generated by the internal combustion engine in a shift-up operation of a multi-stage automatic transmission during a supercharging operation by a supercharger. The opening degree circuitry is configured to reduce an opening degree of a throttle valve so as to decrease a torque generated by the internal combustion engine in a shift-up operation of a multi-stage automatic transmission during a supercharging operation by a supercharger. The regenerative device is coupled to a compressor or a turbine of the supercharger to regenerate rotational energy in the compressor or the turbine so as to decrease the torque in the shift-up operation during the supercharging operation.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: July 30, 2019
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Masaki Ueno, Masaaki Nagashima, Hidekazu Hironobu
  • Publication number: 20190170522
    Abstract: If it is determined that, at a target exit of a roundabout that exists in a target route, a travel restricting event that restricts passing of a vehicle through the target exit has occurred on the basis of a peripheral travel environment detected by a peripheral environment detection unit, a route calculation device of the vehicle adds one circulation or a part of the circulation in the roundabout to the target route.
    Type: Application
    Filed: November 28, 2018
    Publication date: June 6, 2019
    Inventors: Hideki MATSUNAGA, Masaaki NAGASHIMA, Takeru GOTO, Hirokiyo KASAHARA, Yoshimitsu MURAHASHI, Takumi MACHIDA, Toshiaki TAKANO
  • Patent number: 10302009
    Abstract: A control device for an internal combustion engine includes circuitry. The circuitry is configured to determine whether a running state of the internal combustion engine is in an auxiliary driving state in which an electric motor drives a compressor. The circuitry is configured to increase an opening degree of a waste gate valve when the running state is determined to be in the auxiliary driving state. The circuitry is configured to control a valve actuation phase variable mechanism to increase an overlap period in which a valve opening period of an intake valve and a valve opening period of an exhaust valve are overlapped with each other when the running state is determined to be in the auxiliary driving state.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: May 28, 2019
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Masaki Suzuki, Masaaki Nagashima, Masaki Ueno, Takashi Otobe
  • Publication number: 20190111931
    Abstract: A vehicle control device includes an overtaking prediction unit configured to predict an overtaking section where a host vehicle overtakes another vehicle that exists ahead of the host vehicle and in a second lane different from a first lane where the host vehicle is traveling, and a travel controller configured to perform travel control to overtake another vehicle. The travel controller performs travel control to adjust speed of the host vehicle in a case where the overtaking section predicted by the overtaking prediction unit entirely or partially overlaps a restricted section in which overtaking is restricted.
    Type: Application
    Filed: October 10, 2018
    Publication date: April 18, 2019
    Inventors: Hideki MATSUNAGA, Masaaki NAGASHIMA, Takumi MACHIDA
  • Publication number: 20190106111
    Abstract: In a case where a host vehicle that is traveling on a first lane intends to turn right or left at an intersection via a second lane whose traveling direction coincides with that of the first lane, a vehicle controller constituting a part of a vehicle control device performs a travel control or an assistance control that differs depending on whether the second lane is a priority lane where another vehicle that is different in type from the host vehicle preferentially travels.
    Type: Application
    Filed: October 4, 2018
    Publication date: April 11, 2019
    Inventors: Hideki MATSUNAGA, Masaaki NAGASHIMA, Toshiaki TAKANO
  • Patent number: 10174671
    Abstract: A control device for an internal combustion engine including a supercharger and a waste gate valve, the supercharger including a compressor an electric motor, and a turbine, the turbine being provided in an exhaust passage of the internal combustion engine, the waste gate valve being provided in a bypass passage that bypasses the turbine, the control device includes circuitry. The circuitry is configured to drive the electric motor in a high-load operation state in which the load of the internal combustion engine is determined to be equal to or larger than a first reference load and the temperature of the exhaust gas is determined to be expected to be higher than a reference temperature. The circuitry is configured to increase an opening degree of the waste gate valve in the high-load operation state.
    Type: Grant
    Filed: November 1, 2016
    Date of Patent: January 8, 2019
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Masaki Ueno, Masaaki Nagashima, Masaki Suzuki, Hidekazu Hironobu
  • Publication number: 20180085007
    Abstract: A magnetic resonance imaging apparatus according to an embodiment includes processing circuitry and sequence control circuitry. The processing circuitry sets a pattern based on information on heartbeats or pulsebeats of a subject, the pattern being an imaging condition of a pulse sequence for collecting data at a plurality of timings along a relaxation curve of longitudinal magnetization in synchronization with heartbeats or pulsebeats and the pattern defining a relation between heartbeats or pulsebeats, an inversion pulse, and a data collection timing. The sequence control circuitry controls execution of the pulse sequence according to the pattern.
    Type: Application
    Filed: September 22, 2017
    Publication date: March 29, 2018
    Applicant: Toshiba Medical Systems Corporation
    Inventors: Ruixiao SONG, Shuhei BANNAE, Yutaka MACHII, Masaaki NAGASHIMA
  • Patent number: 9857273
    Abstract: A misfire detecting apparatus is provided wherein a misfire is detected based on a rotational speed parameter indicative of a rotational speed of an internal combustion engine. An average change amount of the rotational speed parameter in a first predetermined period and an inertia speed changing component which is generated with rotation of the engine are calculated, and a first corrected rotational speed parameter is calculated by correcting the rotational speed parameter according to the average change amount and the inertia speed changing component.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: January 2, 2018
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Tomoharu Hozumi, Masaaki Nagashima, Kiyonari Matsuda
  • Patent number: 9770187
    Abstract: A magnetic resonance imaging apparatus according to an embodiment includes a controller and a generator. The controller divides a plurality of slice regions that are sequentially arranged into a first group including two non-sequential slice regions and a second group including a slice region positioned between the two non-sequential slice regions and acquires data from the slice regions for each of the groups. When acquiring data from at least one of the two non-sequential slice regions, the controller acquires the data after applying a pre-sat pulse to a position between the two non-sequential slice regions. When acquiring data from the slice region positioned between the two non-sequential slice regions, the controller acquires the data after applying a pre-sat pulse to a position of at least one of the two non-sequential slice regions.
    Type: Grant
    Filed: September 22, 2015
    Date of Patent: September 26, 2017
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Masaaki Umeda, Satoshi Sugiura, Naoyuki Furudate, Hiroshi Kusahara, Masaaki Nagashima
  • Publication number: 20170191460
    Abstract: A controller for an internal combustion engine includes a regenerative device and at least one of ignition timing circuitry and opening degree circuitry. The ignition timing circuitry is configured to retard an ignition timing so as to decrease a torque generated by the internal combustion engine in a shift-up operation of a multi-stage automatic transmission during a supercharging operation by a supercharger. The opening degree circuitry is configured to reduce an opening degree of a throttle valve so as to decrease a torque generated by the internal combustion engine in a shift-up operation of a multi-stage automatic transmission during a supercharging operation by a supercharger. The regenerative device is coupled to a compressor or a turbine of the supercharger to regenerate rotational energy in the compressor or the turbine so as to decrease the torque in the shift-up operation during the supercharging operation.
    Type: Application
    Filed: December 6, 2016
    Publication date: July 6, 2017
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Masaki UENO, Masaaki NAGASHIMA, Hidekazu HIRONOBU
  • Publication number: 20170184014
    Abstract: A control device for an internal combustion engine including a supercharger and a waste gate valve, the supercharger including a compressor an electric motor, and a turbine, the turbine being provided in an exhaust passage of the internal combustion engine, the waste gate valve being provided in a bypass passage that bypasses the turbine, the control device includes circuitry. The circuitry is configured to drive the electric motor in a high-load operation state in which the load of the internal combustion engine is determined to be equal to or larger than a first reference load and the temperature of the exhaust gas is determined to be expected to be higher than a reference temperature. The circuitry is configured to increase an opening degree of the waste gate valve in the high-load operation state.
    Type: Application
    Filed: November 1, 2016
    Publication date: June 29, 2017
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Masaki UENO, Masaaki NAGASHIMA, Masaki SUZUKI, Hidekazu HIRONOBU
  • Publication number: 20170159552
    Abstract: A control device for an internal combustion engine includes circuitry. The circuitry is configured to determine whether a running state of the internal combustion engine is in an auxiliary driving state in which an electric motor drives a compressor. The circuitry is configured to increase an opening degree of a waste gate valve when the running state is determined to be in the auxiliary driving state. The circuitry is configured to control a valve actuation phase variable mechanism to increase an overlap period in which a valve opening period of an intake valve and a valve opening period of an exhaust valve are overlapped with each other when the running state is determined to be in the auxiliary driving state.
    Type: Application
    Filed: November 15, 2016
    Publication date: June 8, 2017
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Masaki SUZUKI, Masaaki NAGASHIMA, Masaki UENO, Takashi OTOBE
  • Publication number: 20170045590
    Abstract: A magnetic resonance imaging apparatus according to an embodiment includes a temperature sensor and a processing circuit. The temperature sensor acquires a temperature. The processing circuit calculates, based on information on an imaging sequence in which magnetic resonance imaging is to be performed, an estimated value of consumption energy of a gradient coil in a case when the imaging sequence is executed and calculates, based on the temperature acquired by the temperature sensor and the estimated value of the consumption energy, an estimated value of a temperature of the gradient coil, the temperature of the gradient coil undergoing changes as the imaging sequence is executed.
    Type: Application
    Filed: July 29, 2016
    Publication date: February 16, 2017
    Applicant: TOSHIBA MEDICAL SYSTEMS CORPORATION
    Inventors: Yuki TAKAI, Naoyuki FURUDATE, Masaaki NAGASHIMA, Yutaka MACHll
  • Patent number: 9404457
    Abstract: A fuel supply system for an internal combustion engine capable of executing calculation of an energization time of the electromagnetic valve at proper timing and thereby properly controlling the amount of fuel to be discharged from the fuel pump toward a fuel injection valve. In the fuel supply system, when a predetermined timing corresponding to a predetermined crank angle position of the engine deviates from a predetermined cam angle timing which is within a predetermined time period including a timing at which a top of a cam nose of the driving cam is abutting a plunger, and preceding and following the timing, and corresponds to a predetermined rotational angle position of the driving cam, the calculation timing of the energization time is corrected such that the calculation timing is made closer to the cam angle timing.
    Type: Grant
    Filed: January 8, 2013
    Date of Patent: August 2, 2016
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Hidekazu Hironobu, Masaaki Nagashima, Yosuke Kosaka
  • Patent number: 9314895
    Abstract: A grinding apparatus for grinding a wafer stored in a cassette composed of a container for storing the wafer and a lid for enclosing the container. The grinding apparatus includes a cassette table for placing the cassette thereon, a lid removing unit for removing the lid from the cassette placed on the cassette table and leaving only the container on the cassette table, a chuck table for holding the wafer under suction, a chuck table moving unit for moving the chuck table to a grinding area, a grinding unit provided in the grinding area, the grinding unit having a grinding wheel for grinding the wafer held on the chuck table, a grinding water supplying unit for supplying a grinding water to abrasive members of the grinding wheel, and a waste water collecting unit for collecting waste water generated in grinding the wafer by operating the grinding unit.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: April 19, 2016
    Assignee: Disco Corporation
    Inventors: Takashi Mori, Shinichi Namioka, Masaaki Nagashima, Hidetaka Ochi, Naoto Takata, Masaaki Suzuki, Hirotoshi Hoshikawa, Osamu Miura, Noriko Ito
  • Publication number: 20160093047
    Abstract: A magnetic resonance imaging apparatus according to an embodiment includes a controller and a generator. The controller divides a plurality of slice regions that are sequentially arranged into a first group including two non-sequential slice regions and a second group including a slice region positioned between the two non-sequential slice regions and acquires data from the slice regions for each of the groups. When acquiring data from at least one of the two non-sequential slice regions, the controller acquires the data after applying a pre-sat pulse to a position between the two non-sequential slice regions. When acquiring data from the slice region positioned between the two non-sequential slice regions, the controller acquires the data after applying a pre-sat pulse to a position of at least one of the two non-sequential slice regions.
    Type: Application
    Filed: September 22, 2015
    Publication date: March 31, 2016
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Masaaki UMEDA, Satoshi SUGIURA, Naoyuki FURUDATE, Hiroshi KUSAHARA, Masaaki NAGASHIMA