Patents by Inventor Hiroshi Ashikaga
Hiroshi Ashikaga 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: 11350888Abstract: Systems and methods for personalized sudden cardiac death risk prediction that generates fingerprints of imaging features of cardiac structure and function. One or more fingerprints and clinical data may be used to generate a risk score. The output risk score may be used to predict the time of death in order to select high-risk patients for implantable cardioverter-defibrillator treatment.Type: GrantFiled: April 10, 2020Date of Patent: June 7, 2022Assignees: Siemens Healthcare GmbH, The Johns Hopkins UniversityInventors: Julian Krebs, Hiroshi Ashikaga, Tommaso Mansi, Bin Lou, Katherine Chih-ching Wu, Henry Halperin
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Publication number: 20210059612Abstract: Systems and methods for personalized sudden cardiac death risk prediction that generates fingerprints of imaging features of cardiac structure and function. One or more fingerprints and clinical data may be used to generate a risk score. The output risk score may be used to predict the time of death in order to select high-risk patients for implantable cardioverter-defibrillator treatment.Type: ApplicationFiled: April 10, 2020Publication date: March 4, 2021Inventors: Julian Krebs, Hiroshi Ashikaga, Tommaso Mansi, Bin Lou, Katherine Chih-ching Wu, Henry Halperin
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Patent number: 10593617Abstract: According to one embodiment, a semiconductor device includes a first board including a plurality of terminals, a semiconductor chip flip-chip mounted to the first board, and an insulating layer covering the first board and the semiconductor chip. The plurality of terminals include at least one first terminal electrically connected to the semiconductor chip, and at least one second terminal that is not connected to the semiconductor chip, wherein the at least one second terminal is not covered by the insulating layer.Type: GrantFiled: March 2, 2018Date of Patent: March 17, 2020Assignee: TOSHIBA MEMORY CORPORATIONInventors: Hiroshi Ashikaga, Naoki Kimura
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Patent number: 10271905Abstract: The present application relates to systems and methods for performing a computerized cardiac simulation for at least one of diagnosis, risk assessment or treatment planning including: receiving, by a computer, a plurality of three-dimensional cardiac images of a subject's heart such that each three-dimensional cardiac image corresponds to a different phase of a single cardiac cycle of the subject's heart; modeling structure, using the computer, of the left atrium of the subject as a function of time using the plurality of three-dimensional cardiac images of the subject's heart; modeling blood flow, using the computer, within, into and out of the left atrium of the subject as a function of time using computational fluidic dynamics and using structure of said left atrium obtained from at least one of said plurality of three-dimensional cardiac images or said modeling structure of said left atrium; simulating at least one of time dependent structural function or time-dependent blood flow of said left atrium usinType: GrantFiled: April 20, 2016Date of Patent: April 30, 2019Assignee: The Johns Hopkins UniversityInventors: Hiroshi Ashikaga, Tomohiro Otani
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Publication number: 20190088583Abstract: According to one embodiment, a semiconductor device includes a first board including a plurality of terminals, a semiconductor chip flip-chip mounted to the first board, and an insulating layer covering the first board and the semiconductor chip. The plurality of terminals include at least one first terminal electrically connected to the semiconductor chip, and at least one second terminal that is not connected to the semiconductor chip, wherein the at least one second terminal is not covered by the insulating layer.Type: ApplicationFiled: March 2, 2018Publication date: March 21, 2019Inventors: Hiroshi ASHIKAGA, Naoki KIMURA
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Publication number: 20180116725Abstract: The present application relates to systems and methods for performing a computerized cardiac simulation for at least one of diagnosis, risk assessment or treatment planning including: receiving, by a computer, a plurality of three-dimensional cardiac images of a subject's heart such that each three-dimensional cardiac image corresponds to a different phase of a single cardiac cycle of the subject's heart; modeling structure, using the computer, of the left atrium of the subject as a function of time using the plurality of three-dimensional cardiac images of the subject's heart; modeling blood flow, using the computer, within, into and out of the left atrium of the subject as a function of time using computational fluidic dynamics and using structure of said left atrium obtained from at least one of said plurality of three-dimensional cardiac images or said modeling structure of said left atrium; simulating at least one of time dependent structural function or time-dependent blood flow of said left atrium usinType: ApplicationFiled: April 20, 2016Publication date: May 3, 2018Inventors: Hiroshi Ashikaga, Tomohiro Otani
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Patent number: 7522361Abstract: The storage device 10 provides a signal detection method for preventing the degradation of an error rate at the time of information reading, caused by the change of a magnetic characteristic due to a non-uniform magnetic storage medium. The storage device 10 comprises a storage medium 11 for storing information, a reproduction signal generation unit for generating a reproduction signal, a synch mark pattern detection unit 13 for detecting a synch mark pattern from the reproduction signal, a filter setting unit for setting filters and filters 15 for demodulating the reproduction signal and a data detection unit 16 for detecting data from the demodulated signal.Type: GrantFiled: June 9, 2006Date of Patent: April 21, 2009Assignee: Fujitsu LimitedInventors: Hiroshi Ashikaga, Shin Tomimoto
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Publication number: 20070211360Abstract: The storage device 10 provides a signal detection method for preventing the degradation of an error rate at the time of information reading, caused by the change of a magnetic characteristic due to a non-uniform magnetic storage medium. The storage device 10 comprises a storage medium 11 for storing information, a reproduction signal generation unit for generating a reproduction signal, a synch mark pattern detection unit 13 for detecting a synch mark pattern from the reproduction signal, a filter setting unit for setting filters and filters 15 for demodulating the reproduction signal and a data detection unit 16 for detecting data from the demodulated signal.Type: ApplicationFiled: June 9, 2006Publication date: September 13, 2007Inventors: Hiroshi Ashikaga, Shin Tomimoto
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Patent number: 7082008Abstract: In a servo pattern deviation correcting method and disk apparatus of the present invention, a read/write head writes information to a disk and reads information from the disk. Servo pattern blocks are written to respective sectors of the disk along a target track. A deviation of each servo pattern block from a position of the track in a transverse direction is detected. A deviation correction pattern for each servo pattern block is created based on the deviation of the servo pattern block. The deviation correction pattern is written to a predetermined region of the disk between each servo pattern block and a data region along the track. The deviation correction pattern is read from the predetermined region of the disk, so that the read/write head is shifted to a deviation-corrected position on the track based on the servo pattern block and the deviation correction pattern.Type: GrantFiled: September 20, 2001Date of Patent: July 25, 2006Assignee: Fujitsu LimitedInventors: Hiroshi Ashikaga, Nobuyuki Suzuki
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Patent number: 7012773Abstract: A disk device and a disk medium are disclosed in which a plurality of servo cylinders on the surface of at least one disk are divided into several areas, and a different servo signal frequency is set and recorded for each of the areas. The servo cylinders are divided into predetermined areas, and a different servo signal frequency for each of the areas is set so that the recording density of the servo signal recorded in the disk can be set so as to allow the servo signal demodulation characteristic to be included in a relatively superior range. In the disk device, the boundary between the area of a first servo signal frequency and the area of a second servo signal frequency adjoining the first servo signal frequency area is preferably formed with an area in which a servo signal pattern written with the first servo signal frequency and a servo signal pattern written with the second servo signal frequency are arranged on the same servo cylinders.Type: GrantFiled: February 3, 2003Date of Patent: March 14, 2006Assignee: Fujitsu LimitedInventors: Hiroshi Ashikaga, Nobuyuki Suzuki
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Patent number: 6661593Abstract: In a servo information detection method and disk apparatus of the present invention, it is determined whether a pattern of detection bits, detected from a vicinity of a servo sync mark of a disk, matches with a given comparison bit pattern. A pattern of tolerance bits is changed based on a location of the disk where the servo sync mark is detected, so that the matching between the detection bit pattern and the comparison bit pattern is performed based on the changed tolerance bit pattern.Type: GrantFiled: July 10, 2001Date of Patent: December 9, 2003Assignee: Fujitsu LimitedInventors: Hiroshi Ashikaga, Nobuyuki Suzuki
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Publication number: 20030197964Abstract: A disk device and a disk medium are disclosed in which a plurality of servo cylinders on the surface of at least one disk are divided into several areas, and a different servo signal frequency is set and recorded for each of the areas. The servo cylinders are divided into predetermined areas, and a different servo signal frequency for each of the areas is set so that the recording density of the servo signal recorded in the disk can be set so as to allow the servo signal demodulation characteristic to be included in a relatively superior range. In the disk device, the boundary between the area of a first servo signal frequency and the area of a second servo signal frequency adjoining the first servo signal frequency area is preferably formed with an area in which a servo signal pattern written with the first servo signal frequency and a servo signal pattern written with the second servo signal frequency are arranged on the same servo cylinders.Type: ApplicationFiled: February 3, 2003Publication date: October 23, 2003Applicant: FUJITSU LIMITEDInventors: Hiroshi Ashikaga, Nobuyuki Suzuki
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Publication number: 20020109933Abstract: In a servo pattern deviation correcting method and disk apparatus of the present invention, a read/write head writes information to a disk and reads information from the disk. Servo pattern blocks are written to respective sectors of the disk along a target track. A deviation of each servo pattern block from a position of the track in a transverse direction is detected. A deviation correction pattern for each servo pattern block is created based on the deviation of the servo pattern block. The deviation correction pattern is written to a predetermined region of the disk between each servo pattern block and a data region along the track. The deviation correction pattern is read from the predetermined region of the disk, so that the read/write head is shifted to a deviation-corrected position on the track based on the servo pattern block and the deviation correction pattern.Type: ApplicationFiled: September 20, 2001Publication date: August 15, 2002Applicant: FUJITSU LIMITEDInventors: Hiroshi Ashikaga, Nobuyuki Suzuki
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Publication number: 20020109929Abstract: In a servo information detection method and disk apparatus of the present invention, it is determined whether a pattern of detection bits, detected from a vicinity of a servo sync mark of a disk, matches with a given comparison bit pattern. A pattern of tolerance bits is changed based on a location of the disk where the servo sync mark is detected, so that the matching between the detection bit pattern and the comparison bit pattern is performed based on the changed tolerance bit pattern.Type: ApplicationFiled: July 10, 2001Publication date: August 15, 2002Applicant: FUJITSU LIMITEDInventors: Hiroshi Ashikaga, Nobuyuki Suzuki