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: 11565369
    Abstract: A method of grinding a surface of a workpiece that has surface irregularities includes a first grinding step of grinding the surface of the workpiece by a predetermined amount of stock removal while keeping a measuring element of a height gauge out of contact with the surface of the workpiece, thereafter, a height difference measuring step of bringing the measuring element of the height gauge into contact with the surface of the workpiece and measuring a height difference of surface irregularities on the surface of the workpiece with the height gauge, and a second grinding step of, if the measured height difference is larger than a preset range, grinding the surface of the workpiece while keeping the measuring element of the height gauge in contact with the surface of the workpiece until the measured height difference falls within the preset range.
    Type: Grant
    Filed: February 18, 2021
    Date of Patent: January 31, 2023
    Assignee: DISCO CORPORATION
    Inventors: Masaaki Nagashima, Naoto Takata
  • Patent number: 11393136
    Abstract: An method according to an embodiment divides k-space data into a k-space central segment and a k-space peripheral segment by segment. The method acquires the k-space central segment in a first time interval and acquires the k-space peripheral segment in a second time interval different from the first time interval. The method reconstructs an MR (Magnetic Resonance) image from k-space data obtained by combining data on the acquired k-space central segment and data on the acquired k-space peripheral segment. Furthermore, the first time interval includes a plurality of cardiac cycles. The k-space central segment is repeatedly acquired over the cardiac cycles. As a central segment of k-space data used to reconstruct the MR image, data in a cardiac cycle less affected by an arrhythmia among the cardiac cycles is selected.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: July 19, 2022
    Assignee: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Masaaki Nagashima, Mark Golden
  • Patent number: 11352026
    Abstract: Provided are a vehicle, a vehicle monitoring server, a vehicle monitoring system, and a vehicle monitoring method, that can be suitably used in a configuration whereby the vehicle and the vehicle monitoring server communicate in relation to a travel caution region. A first control device in the vehicle sends an entry notification signal to the vehicle monitoring server prior to entry into a travel caution region, if the travel caution region is included in a target route or a target track. The first control device may also send a passage completed signal to the vehicle monitoring server after passing through the travel caution region. A second control device in the vehicle monitoring server performs an error output if, after receiving an entry notification signal from a specified vehicle, a passage completed signal has not been received by a second prescribed point in time.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: June 7, 2022
    Assignee: Honda Motor Co., Ltd.
    Inventors: Masaaki Nagashima, Hideki Matsunaga, Takeru Goto, Toshiaki Takano
  • Patent number: 11325589
    Abstract: This vehicle control device comprises: action amount determination units that determine evasive action amounts indicating the degree of evasive action relative to a recognized obstacle; and a travel control unit that performs travel control whereby a vehicle is caused to take evasive action corresponding to the determined evasive action amount. The action amount determination units determine the amount of evasive action, according to user preferences for the vehicle.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: May 10, 2022
    Assignee: Honda Motor Co., Ltd.
    Inventors: Masaaki Nagashima, Hideki Matsunaga, Takeru Goto, Hirokiyo Kasahara, Yoshimitsu Murahashi
  • Patent number: 11180166
    Abstract: Provided is a vehicle control device which, when traffic participants are waiting in the vicinity of a railroad crossing for a train to pass, appropriately controls driving of a vehicle about to pass through the railroad crossing. Entry of the vehicle into the railroad crossing is restrained until a waiting time elapses since when the railroad crossing transitioned from a passage blocking state to a passage allowing state, the waiting time being set in accordance with the kind or the number of the traffic participants present in the vicinity of the railroad crossing. When the waiting time has elapsed, the vehicle is caused to enter the railroad crossing and pass (through) the railroad crossing.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: November 23, 2021
    Assignee: Honda Motor Co., Ltd.
    Inventors: Takeru Goto, Hideki Matsunaga, Masaaki Nagashima, Yoshimitsu Murahashi
  • Patent number: 11138769
    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: Grant
    Filed: May 10, 2019
    Date of Patent: October 5, 2021
    Assignee: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Masaaki Nagashima, Hiroshi Takai
  • Publication number: 20210276145
    Abstract: A method of grinding a surface of a workpiece that has surface irregularities includes a first grinding step of grinding the surface of the workpiece by a predetermined amount of stock removal while keeping a measuring element of a height gauge out of contact with the surface of the workpiece, thereafter, a height difference measuring step of bringing the measuring element of the height gauge into contact with the surface of the workpiece and measuring a height difference of surface irregularities on the surface of the workpiece with the height gauge, and a second grinding step of, if the measured height difference is larger than a preset range, grinding the surface of the workpiece while keeping the measuring element of the height gauge in contact with the surface of the workpiece until the measured height difference falls within the preset range.
    Type: Application
    Filed: February 18, 2021
    Publication date: September 9, 2021
    Inventors: Masaaki NAGASHIMA, Naoto TAKATA
  • Patent number: 11091174
    Abstract: A vehicle control device is provided with: a surroundings recognition unit which recognizes external conditions around a host vehicle; a behavior determination unit which, if it is recognized that another vehicle is present along a travel path along which the host vehicle is traveling, determines behavior of the other vehicle; a space setting unit which, if the behavior deter urination unit determines that the other vehicle will cross the travel path, sets a space ahead of the other vehicle in accordance with the behavior of the other vehicle so that the other vehicle can secure fields of vision; and a vehicle control unit which performs control to form the space ahead of the other vehicle.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: August 17, 2021
    Assignee: Honda Motor Co., Ltd.
    Inventors: Hideki Matsunaga, Masaaki Nagashima, Takeru Goto
  • Publication number: 20210146917
    Abstract: This vehicle control device comprises: action amount determination units that determine evasive action amounts indicating the degree of evasive action relative to a recognized obstacle; and a travel control unit that performs travel control whereby a vehicle is caused to take evasive action corresponding to the determined evasive action amount. The action amount determination units determine the amount of evasive action, according to user preferences for the vehicle.
    Type: Application
    Filed: November 6, 2017
    Publication date: May 20, 2021
    Inventors: Masaaki NAGASHIMA, Hideki MATSUNAGA, Takeru GOTO, Hirokiyo KASAHARA, Yoshimitsu MURAHASHI
  • Patent number: 10994735
    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: Grant
    Filed: October 4, 2018
    Date of Patent: May 4, 2021
    Assignee: Honda Motor Co., Ltd.
    Inventors: Hideki Matsunaga, Masaaki Nagashima, Toshiaki Takano
  • Patent number: 10921405
    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: April 20, 2020
    Date of Patent: February 16, 2021
    Assignee: CANON MEDICAL SYSTEMS CORPORATION
    Inventor: Masaaki Nagashima
  • Publication number: 20200386559
    Abstract: Provided are a traveling control apparatus, a vehicle, and a traveling control method in which appropriateness of a user target destination can be taken into consideration. A vehicle target destination calculation unit sets a vehicle target destination where a vehicle is to be stopped, on the basis of a user target destination inputted by a user via a target destination input unit. Further, in the case where it is determined, on the basis of information about the road of the user target destination, that the user target destination is an inappropriate stopping point which is on the road but is unsuitable for stopping the vehicle, the vehicle target destination calculation unit sets an appropriate stopping point off track from the user target destination as a vehicle target destination.
    Type: Application
    Filed: December 1, 2017
    Publication date: December 10, 2020
    Inventors: Masaaki NAGASHIMA, Hideki MATSUNAGA, Takeru GOTO, Takumi MACHIDA, Toshiaki TAKANO
  • Publication number: 20200370904
    Abstract: Provided are a traveling control apparatus, a vehicle, and a traveling control method in which appropriateness of a user target destination can be taken into consideration. A traveling control apparatus acquires vicinity environment information from a vicinity environment detection unit. In addition, the traveling control apparatus determines whether or not a user target destination is appropriate for stopping a vehicle, on the basis of the vicinity environment information regarding the user target destination. Further, in the case where it is determined that the user target destination is not appropriate for stopping a vehicle, the traveling control apparatus stops a vehicle at a corrected target destination off track from the user target destination.
    Type: Application
    Filed: December 1, 2017
    Publication date: November 26, 2020
    Inventors: Masaaki NAGASHIMA, Hideki MATSUNAGA, Takeru GOTO, Takumi MACHIDA, Toshiaki TAKANO
  • Patent number: 10845204
    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: Grant
    Filed: November 28, 2018
    Date of Patent: November 24, 2020
    Assignee: Honda Motor Co., Ltd.
    Inventors: Hideki Matsunaga, Masaaki Nagashima, Takeru Goto, Hirokiyo Kasahara, Yoshimitsu Murahashi, Takumi Machida, Toshiaki Takano
  • Publication number: 20200357149
    Abstract: An method according to an embodiment divides k-space data into a k-space central segment and a k-space peripheral segment by segment. The method acquires the k-space central segment in a first time interval and acquires the k-space peripheral segment in a second time interval different from the first time interval. The method reconstructs an MR (Magnetic Resonance) image from k-space data obtained by combining data on the acquired k-space central segment and data on the acquired k-space peripheral segment. Furthermore, the first time interval includes a plurality of cardiac cycles. The k-space central segment is repeatedly acquired over the cardiac cycles. As a central segment of k-space data used to reconstruct the MR image, data in a cardiac cycle less affected by an arrhythmia among the cardiac cycles is selected.
    Type: Application
    Filed: March 25, 2020
    Publication date: November 12, 2020
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Masaaki NAGASHIMA, Mark GOLDEN
  • Patent number: 10821980
    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: Grant
    Filed: October 10, 2018
    Date of Patent: November 3, 2020
    Assignee: Honda Motor Co., Ltd.
    Inventors: Hideki Matsunaga, Masaaki Nagashima, Takumi Machida
  • Publication number: 20200298884
    Abstract: Provided is a vehicle control device which, when traffic participants are waiting in the vicinity of a railroad crossing for a train to pass, appropriately controls driving of a vehicle about to pass through the railroad crossing. Entry of the vehicle into the railroad crossing is restrained until a waiting time elapses since when the railroad crossing transitioned from a passage blocking state to a passage allowing state, the waiting time being set in accordance with the kind or the number of the traffic participants present in the vicinity of the railroad crossing. When the waiting time has elapsed, the vehicle is caused to enter the railroad crossing and pass (through) the railroad crossing.
    Type: Application
    Filed: October 11, 2017
    Publication date: September 24, 2020
    Inventors: Takeru GOTO, Hideki MATSUNAGA, Masaaki NAGASHIMA, Yoshimitsu MURAHASHI
  • Publication number: 20200262452
    Abstract: Provided are a vehicle, a vehicle monitoring server, a vehicle monitoring system, and a vehicle monitoring method, that can be suitably used in a configuration whereby the vehicle and the vehicle monitoring server communicate in relation to a travel caution region. A first control device in the vehicle sends an entry notification signal to the vehicle monitoring server prior to entry into a travel caution region, if the travel caution region is included in a target route or a target track. The first control device may also send a passage completed signal to the vehicle monitoring server after passing through the travel caution region. A second control device in the vehicle monitoring server performs an error output if, after receiving an entry notification signal from a specified vehicle, a passage completed signal has not been received by a second prescribed point in time.
    Type: Application
    Filed: November 6, 2017
    Publication date: August 20, 2020
    Inventors: Masaaki NAGASHIMA, Hideki MATSUNAGA, Takeru GOTO, Toshiaki TAKANO
  • Publication number: 20200255029
    Abstract: A vehicle control device is provided with: a surroundings recognition unit which recognizes external conditions around a host vehicle; a behavior determination unit which, if it is recognized that another vehicle is present along a travel path along which the host vehicle is traveling, determines behavior of the other vehicle; a space setting unit which, if the behavior deter urination unit determines that the other vehicle will cross the travel path, sets a space ahead of the other vehicle in accordance with the behavior of the other vehicle so that the other vehicle can secure fields of vision; and a vehicle control unit which performs control to form the space ahead of the other vehicle.
    Type: Application
    Filed: October 17, 2017
    Publication date: August 13, 2020
    Inventors: Hideki MATSUNAGA, Masaaki NAGASHIMA, Takeru GOTO
  • Publication number: 20200249298
    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: April 20, 2020
    Publication date: August 6, 2020
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventor: Masaaki NAGASHIMA