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).
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Patent number: 11565369Abstract: 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: GrantFiled: February 18, 2021Date of Patent: January 31, 2023Assignee: DISCO CORPORATIONInventors: Masaaki Nagashima, Naoto Takata
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Patent number: 11393136Abstract: 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: GrantFiled: March 25, 2020Date of Patent: July 19, 2022Assignee: CANON MEDICAL SYSTEMS CORPORATIONInventors: Masaaki Nagashima, Mark Golden
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Patent number: 11352026Abstract: 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: GrantFiled: November 6, 2017Date of Patent: June 7, 2022Assignee: Honda Motor Co., Ltd.Inventors: Masaaki Nagashima, Hideki Matsunaga, Takeru Goto, Toshiaki Takano
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Patent number: 11325589Abstract: 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: GrantFiled: November 6, 2017Date of Patent: May 10, 2022Assignee: Honda Motor Co., Ltd.Inventors: Masaaki Nagashima, Hideki Matsunaga, Takeru Goto, Hirokiyo Kasahara, Yoshimitsu Murahashi
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Patent number: 11180166Abstract: 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: GrantFiled: October 11, 2017Date of Patent: November 23, 2021Assignee: Honda Motor Co., Ltd.Inventors: Takeru Goto, Hideki Matsunaga, Masaaki Nagashima, Yoshimitsu Murahashi
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Patent number: 11138769Abstract: 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: GrantFiled: May 10, 2019Date of Patent: October 5, 2021Assignee: CANON MEDICAL SYSTEMS CORPORATIONInventors: Masaaki Nagashima, Hiroshi Takai
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Publication number: 20210276145Abstract: 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: ApplicationFiled: February 18, 2021Publication date: September 9, 2021Inventors: Masaaki NAGASHIMA, Naoto TAKATA
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Patent number: 11091174Abstract: 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: GrantFiled: October 17, 2017Date of Patent: August 17, 2021Assignee: Honda Motor Co., Ltd.Inventors: Hideki Matsunaga, Masaaki Nagashima, Takeru Goto
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Publication number: 20210146917Abstract: 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: ApplicationFiled: November 6, 2017Publication date: May 20, 2021Inventors: Masaaki NAGASHIMA, Hideki MATSUNAGA, Takeru GOTO, Hirokiyo KASAHARA, Yoshimitsu MURAHASHI
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Patent number: 10994735Abstract: 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: GrantFiled: October 4, 2018Date of Patent: May 4, 2021Assignee: Honda Motor Co., Ltd.Inventors: Hideki Matsunaga, Masaaki Nagashima, Toshiaki Takano
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Patent number: 10921405Abstract: 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: GrantFiled: April 20, 2020Date of Patent: February 16, 2021Assignee: CANON MEDICAL SYSTEMS CORPORATIONInventor: Masaaki Nagashima
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Publication number: 20200386559Abstract: 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: ApplicationFiled: December 1, 2017Publication date: December 10, 2020Inventors: Masaaki NAGASHIMA, Hideki MATSUNAGA, Takeru GOTO, Takumi MACHIDA, Toshiaki TAKANO
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Publication number: 20200370904Abstract: 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: ApplicationFiled: December 1, 2017Publication date: November 26, 2020Inventors: Masaaki NAGASHIMA, Hideki MATSUNAGA, Takeru GOTO, Takumi MACHIDA, Toshiaki TAKANO
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Patent number: 10845204Abstract: 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: GrantFiled: November 28, 2018Date of Patent: November 24, 2020Assignee: Honda Motor Co., Ltd.Inventors: Hideki Matsunaga, Masaaki Nagashima, Takeru Goto, Hirokiyo Kasahara, Yoshimitsu Murahashi, Takumi Machida, Toshiaki Takano
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Publication number: 20200357149Abstract: 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: ApplicationFiled: March 25, 2020Publication date: November 12, 2020Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventors: Masaaki NAGASHIMA, Mark GOLDEN
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Patent number: 10821980Abstract: 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: GrantFiled: October 10, 2018Date of Patent: November 3, 2020Assignee: Honda Motor Co., Ltd.Inventors: Hideki Matsunaga, Masaaki Nagashima, Takumi Machida
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Publication number: 20200298884Abstract: 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: ApplicationFiled: October 11, 2017Publication date: September 24, 2020Inventors: Takeru GOTO, Hideki MATSUNAGA, Masaaki NAGASHIMA, Yoshimitsu MURAHASHI
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Publication number: 20200262452Abstract: 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: ApplicationFiled: November 6, 2017Publication date: August 20, 2020Inventors: Masaaki NAGASHIMA, Hideki MATSUNAGA, Takeru GOTO, Toshiaki TAKANO
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Publication number: 20200255029Abstract: 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: ApplicationFiled: October 17, 2017Publication date: August 13, 2020Inventors: Hideki MATSUNAGA, Masaaki NAGASHIMA, Takeru GOTO
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Publication number: 20200249298Abstract: 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: ApplicationFiled: April 20, 2020Publication date: August 6, 2020Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventor: Masaaki NAGASHIMA