Patents by Inventor Keiji Kimura

Keiji Kimura 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).

  • Publication number: 20240162760
    Abstract: An electric-power conversion device receives an electromagnetic wave transmitted from space and converts the electromagnetic wave into electric power. The electric-power conversion device includes: an electric-power conversion portion for receiving an electromagnetic wave transmitted from space and converting the electromagnetic wave into electric power; a propelling device or driving device for moving the electric-power conversion device; a positioning device for determining the position of the electric-power conversion device; a control device for controlling the propelling device or the driving device based on information about the position and the electric power received by the electric-power conversion portion; and an electric-power supply device for supplying the electric power received by the electric-power conversion portion to an electric system.
    Type: Application
    Filed: November 13, 2023
    Publication date: May 16, 2024
    Inventors: Makoto ITO, Koichi WATANABE, Tsukasa FUNANE, Yosuke TANABE, Hisatoshi KIMURA, Keiji WATANABE
  • Patent number: 11803930
    Abstract: The present invention makes it possible to supply transportation capacity suitable for movement demand in numerous circumstances.
    Type: Grant
    Filed: October 4, 2018
    Date of Patent: October 31, 2023
    Assignees: Hitachi, Ltd., Hitachi Rail STS S.p.A.
    Inventors: Tsuyoshi Minakawa, Keiji Kimura, Tatsuhiro Satou, Michi Kariatsumari, Claudio Giorgianni
  • Patent number: 11754404
    Abstract: When input information including starting point information and destination information are input, this transport navigation system searches for a route for traveling from the starting point to the destination by a train of a transportation means on the basis of the input information, and outputs travel route information about the travel route obtained. The transport navigation system includes: a storage unit which stores the input information, an actual timetable including actual operation of the train, and a software program; and a CPU which executes the software program with reference to the input information and the actual timetable. The CPU calculates, on the basis of the actual timetable and the input information, the travel route from the starting point to the destination and a statistical amount about a travel time according to the travel route, and generate travel route information on the basis of the travel route and the statistical amount.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: September 12, 2023
    Assignee: Hitachi, Ltd.
    Inventors: Ryota Uematsu, Keiji Kimura, Tsuyoshi Minakawa, Miki Yonehara
  • Publication number: 20220188725
    Abstract: A timetable creation apparatus 100 for correcting a target timetable being a train timetable to be used to control a group of trains by using a predicted passenger demand to thereby create a new target timetable, includes: an objective function generation unit 115 that generates an objective function for an operation headway between trains included in the group of trains by using the predicted passenger demand; a constraint condition generation unit 117 that derives constraint conditions which an arrival time and a departure time of each of the trains at each of stations should satisfy for operation of the group of trains; and a candidate timetable creation unit 119 that creates a candidate timetable as an update candidate for a target timetable by using an arrival time and a departure time of each of the trains at each of the stations derived by optimizing the objective function under the constraint conditions.
    Type: Application
    Filed: February 21, 2020
    Publication date: June 16, 2022
    Inventors: Tsuyoshi MINAKAWA, Keiji KIMURA, Michi KARIATSUMARI, Masahito KOKUBO, Megumi YAMAGUCHI
  • Publication number: 20210357765
    Abstract: A method of solving implemented by a computer, the method includes: predicting a function corresponding to performance of an algorithm, the algorithm being configured to perform mapping from a combination of a plurality of constraint conditions to a solution space; expressing the function predicted by the prediction processing as an objective function as an optimization problem which does not include the plurality of constraint conditions; minimizing a value of the function; and identifying the combination of the plurality of constraint conditions that obtains an optimum solution from the algorithm by using the function the value of which is minimized,
    Type: Application
    Filed: March 4, 2021
    Publication date: November 18, 2021
    Applicant: FUJITSU LIMITED
    Inventor: Keiji Kimura
  • Publication number: 20210003409
    Abstract: When input information including starting point information and destination information are input, this transport navigation system searches for a route for traveling from the starting point to the destination by a train of a transportation means on the basis of the input information, and outputs travel route information about the travel route obtained. The transport navigation system includes: a storage unit which stores the input information, an actual timetable including actual operation of the train, and a software program; and a CPU which executes the software program with reference to the input information and the actual timetable. The CPU calculates, on the basis of the actual timetable and the input information, the travel route from the starting point to the destination and a statistical amount about a travel time according to the travel route, and generate travel route information on the basis of the travel route and the statistical amount.
    Type: Application
    Filed: March 15, 2019
    Publication date: January 7, 2021
    Inventors: Ryota UEMATSU, Keiji KIMURA, Tsuyoshi MINAKAWA, Miki YONEHARA
  • Publication number: 20200357091
    Abstract: The present invention makes it possible to supply transportation capacity suitable for movement demand in numerous circumstances.
    Type: Application
    Filed: October 4, 2018
    Publication date: November 12, 2020
    Inventors: Tsuyoshi MINAKAWA, Keiji KIMURA, Tatsuhiro SATOU, Michi KARIATSUMARI, Claudio GIORGIANNI
  • Publication number: 20200239775
    Abstract: A means is a compound represented by formula (1) , a liquid crystal composition containing the compound, and a liquid crystal display device including the composition. In formula (1), R1 and R2 are independently alkyl having 1 to 15 carbons or the like; ring A1, ring A2 and ring A3 are independently 1,4-cyclohexylene, 1,4-phenylene or the like; and Z1, Z2 and Z3 are independently a single bond or the like.
    Type: Application
    Filed: December 19, 2016
    Publication date: July 30, 2020
    Applicants: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Ayako MORI, Keiji KIMURA, Teizi SATOU
  • Patent number: 10698670
    Abstract: There is provided a parallel program generating method capable of generating a static scheduling enabled parallel program without undermining the possibility of extracting parallelism. The parallel program generating method executed by the parallelization compiling apparatus 100 includes a fusion step (FIG. 2/STEP026) of fusing, as a new task, a task group including a reference task as a task having a conditional branch, and subsequent tasks as tasks control dependent, extended-control dependent, or indirect control dependent on respective of all branch directions of the conditional branch included in the reference task.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: June 30, 2020
    Assignee: WASEDA UNIVERSITY
    Inventors: Hironori Kasahara, Keiji Kimura, Dan Umeda, Hiroki Mikami
  • Patent number: 10428273
    Abstract: Shown are a liquid crystal compound satisfying at least one of physical properties such as high stability to heat and light, a high clearing point (or high maximum temperature), low minimum temperature of a liquid crystal phase, small viscosity, suitable optical anisotropy, large negative dielectric anisotropy, a suitable elastic constant and satisfactory compatibility with other liquid crystal compounds, a liquid crystal composition containing the compound and a liquid crystal display device including the composition.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: October 1, 2019
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Kazuo Okumura, Tokifumi Masukawa, Keiji Kimura
  • Patent number: 10228923
    Abstract: A parallelization compiling method for generating a segmented program from a sequential program, in which multiple macro tasks are included and at least two of the macro tasks have a data dependency relationship with one another, includes determining an existence of invalidation information for invalidating at least a part of the data dependency relationship between the at least two of the plurality of macro tasks before compiling the sequential program into the segmented program, and generating the segmented program by compiling the sequential program into the segmented program with reference to a determination result of the existence of the invalidation information. When the invalidation information is determined to exist, the at least a part of the data dependency relationship is invalidated before the compiling of the sequential program into the segmented program.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: March 12, 2019
    Assignees: DENSO CORPORATION, WASEDA UNIVERSITY
    Inventors: Yoshihiro Yatou, Noriyuki Suzuki, Kenichi Mineda, Hironori Kasahara, Keiji Kimura, Hiroki Mikami, Dan Umeda
  • Patent number: 10187612
    Abstract: The present invention makes it possible to let a user arbitrarily and easily see any other scene than himself or herself in his or her view (the scene seen from any other moving body than him or her). In a display device (an image pickup and display device 1 or a display device 40), specification information is generated to specify a specific image pickup device of outer image pickup devices (the image pickup and display device 1 or and image pickup device 30), and image data are received from the image pickup device specified by the specification information and are displayed. As an outer image pickup device, for example, and image pickup device wore by some other person, image pickup devices set at a car, an electric train, and the like, or further mage pickup devices set at an animal, a bird, and the like are supposed. Image data picked up by these image pickup devices are transmitted to the display side and the image display is carried out in the display device.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: January 22, 2019
    Assignee: SONY CORPORATION
    Inventors: Yoichiro Sako, Keiji Kimura, Masaaki Tsuruta, Masamichi Asukai, Taiji Ito, Kan Ebisawa, Nozomu Ozaki, Akinobu Sugino, Hidehiko Sekizawa, Yonetaro Totsuka
  • Patent number: 10155905
    Abstract: A compound is represented by formula (1). In formula (1), R1 is hydrogen, fluorine, alkyl or the like; ring A1 and ring A2 are independently 1,4-cyclohexylene, 1,4-phenylene or the like; Z1, Z2 and Z3 are independently a single bond, —COO— or the like; X1 is hydrogen, fluorine, —CF3, or —OCF3; L1 and L2 are independently hydrogen or fluorine; and a is 0 or 1, and b is 0 or 1.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: December 18, 2018
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Yasuyuki Gotoh, Keiji Kimura
  • Patent number: 10095657
    Abstract: It is provided a processor system comprising at least one processor core provided on a semiconductor chip and including a processor, a memory and an accelerator. The memory includes an instruction area, a synchronization flag area and a data area. The accelerator starts, even if the processor is executing another processing, acceleration processing and executes the task in a case of confirming that a flag indicating that the processor has completed predetermined processing has been written into the synchronization flag area; and stores the data subjected to the acceleration processing into the data area, and further writes a flag indicating that the completion of the acceleration processing. The processor starts, even if the accelerator is executing another processing, the task corresponding to a flag in a case of confirming that the flag indicating the completion of the acceleration processing has been written into the synchronization flag area.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: October 9, 2018
    Assignee: WASEDA UNIVERSITY
    Inventors: Hironori Kasahara, Keiji Kimura
  • Publication number: 20180181380
    Abstract: There is provided a parallel program generating method capable of generating a static scheduling enabled parallel program without undermining the possibility of extracting parallelism. The parallel program generating method executed by the parallelization compiling apparatus 100 includes a fusion step (FIG. 2/STEP026) of fusing, as a new task, a task group including a reference task as a task having a conditional branch, and subsequent tasks as tasks control dependent, extended-control dependent, or indirect control dependent on respective of all branch directions of the conditional branch included in the reference task.
    Type: Application
    Filed: December 28, 2017
    Publication date: June 28, 2018
    Inventors: Hironori Kasahara, Keiji Kimura, Dan Umeda, Hiroki Mikami
  • Patent number: 9934012
    Abstract: A parallelization compiling method for generating a segmented program from a sequential program includes assigning macro tasks included in the sequential program to cores included in the multi-core processor in order to generate the segmented program, adding a new macro task to the sequential program or deleting one of the macro tasks from the sequential program, and compiling the sequential program into the segmented program in response to the adding of the new macro task under a condition that the macro tasks assigned to the cores do not migrate among the cores or compiling the sequential program into the segmented program in response to the deleting of the one of the macro tasks under a condition that remains of the macro tasks assigned to the cores do not migrate among the cores.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: April 3, 2018
    Assignees: DENSO CORPORATION, WASEDA UNIVERSITY
    Inventors: Kazushi Nobuta, Noriyuki Suzuki, Hironori Kasahara, Keiji Kimura, Hiroki Mikami, Dan Umeda
  • Patent number: 9928057
    Abstract: In one or more embodiments, a method of generating a code by a compiler includes: analyzing a program executed by a processor; analyzing data necessary to execute respective tasks included in the program; determining whether a boundary of the data used by divided tasks is consistent with a management unit of a cache memory based on results of the analyzing; and generating the code for providing a non-cacheable area from which the data to be stored in the management unit including the boundary is not temporarily stored into the cache memory and the code for storing an arithmetic processing result stored in the management unit including the boundary into a non-cacheable area in a case where it is determined that the boundary of the data used by the divided tasks is not consistent with the management unit of the cache memory.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: March 27, 2018
    Assignee: WASEDA UNIVERSITY
    Inventors: Hironori Kasahara, Keiji Kimura, Masayoshi Mase
  • Publication number: 20180060275
    Abstract: It is provided a processor system comprising at least one processor core provided on a semiconductor chip and including a processor, a memory and an accelerator. The memory includes an instruction area, a synchronization flag area and a data area. The accelerator starts, even if the processor is executing another processing, acceleration processing and executes the task in a case of confirming that a flag indicating that the processor has completed predetermined processing has been written into the synchronization flag area; and stores the data subjected to the acceleration processing into the data area, and further writes a flag indicating that the completion of the acceleration processing. The processor starts, even if the accelerator is executing another processing, the task corresponding to a flag in a case of confirming that the flag indicating the completion of the acceleration processing has been written into the synchronization flag area.
    Type: Application
    Filed: November 6, 2017
    Publication date: March 1, 2018
    Inventors: Hironori Kasahara, Keiji Kimura
  • Publication number: 20180022998
    Abstract: Shown are a liquid crystal compound satisfying at least one of physical properties such as high stability to heat and light, a high clearing point (or high maximum temperature), low minimum temperature of a liquid crystal phase, small viscosity, suitable optical anisotropy, large negative dielectric anisotropy, a suitable elastic constant and satisfactory compatibility with other liquid crystal compounds, a liquid crystal composition containing the compound and a liquid crystal display device including the composition. A compound is represented by formula (1), a liquid crystal composition contains the compound, or the like.
    Type: Application
    Filed: July 21, 2017
    Publication date: January 25, 2018
    Applicants: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Kazuo OKUMURA, Tokifumi MASUKAWA, Keiji KIMURA
  • Publication number: 20180020191
    Abstract: The present invention makes it possible to let a user arbitrarily and easily see any other scene than himself or herself in his or her view (the scene seen from any other moving body than him or her). In a display device (an image pickup and display device 1 or a display device 40), specification information is generated to specify a specific image pickup device of outer image pickup devices (the image pickup and display device 1 or and image pickup device 30), and image data are received from the image pickup device specified by the specification information and are displayed. As an outer image pickup device, for example, and image pickup device wore by some other person, image pickup devices set at a car, an electric train, and the like, or further mage pickup devices set at an animal, a bird, and the like are supposed. Image data picked up by these image pickup devices are transmitted to the display side and the image display is carried out in the display device.
    Type: Application
    Filed: September 5, 2017
    Publication date: January 18, 2018
    Applicant: SONY CORPORATION
    Inventors: Yoichiro SAKO, Keiji Kimura, Masaaki TSURUTA, Masamichi ASUKAI, Taiji ITO, Kan EBISAWA, Nozomu OZAKI, Akinobu SUGINO, Hidehiko SEKIZAWA, Yonetaro TOTSUKA