Patents by Inventor Eiji Ohta

Eiji Ohta 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: 20250125016
    Abstract: A non-transitory computer-readable recording medium stores an information processing program for causing a computer to execute a process including: executing a structure relaxation calculation in which a density functional theory calculation of repeatedly updating an electron density is executed a plurality of times such that the electron density is repeatedly updated until a first condition that represents that a variation rate of total electron energy based on the electron density updated last is equal to or lower than a first threshold value is satisfied in at least one time among the plurality of times in the structure relaxation calculation.
    Type: Application
    Filed: August 23, 2024
    Publication date: April 17, 2025
    Applicant: Fujitsu Limited
    Inventor: Eiji OHTA
  • Patent number: 12195886
    Abstract: A production method of a long member including a large number of carbon nanotubes includes the steps of: (1) drawing the carbon nanotubes gradually from a first array to obtain a first web 10a; (2) bringing the first web 10a partially into contact with a first holder 12a to hold the first web 10a on the first holder 12a; (3) drawing the carbon nanotubes gradually from a second array to obtain a second web 10b; (4) bringing the second web 10b partially into contact with a second holder 12b to hold the second web 10b on the second holder 12b; and (5) placing a portion of the first web 10a and a portion of the second web 10b on each other to form a joint, the portions of the first and second webs 10a and 10b being in the vicinity of the first and second holders 12a and 12b, respectively, and being placed on each other such that width directions of the first and second webs 10a and 10b are substantially the same.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: January 14, 2025
    Assignee: TOKUSEN KOGYO CO., LTD.
    Inventors: Eiji Ohta, Hiroyuki Ohue
  • Publication number: 20240419757
    Abstract: A non-transitory computer-readable recording medium stores an information processing program for causing a computer to execute processing including repeatedly performing a specific operation of calculating a solution of a parameter by using a function until the number of upper digits whose values match between a characteristic value that corresponds to a solution of the parameter calculated last time and a characteristic value that corresponds to a solution of the parameter calculated this time becomes equal to or greater than a first threshold.
    Type: Application
    Filed: August 29, 2024
    Publication date: December 19, 2024
    Applicant: Fujitsu Limited
    Inventor: Eiji OHTA
  • Patent number: 12152996
    Abstract: An inspection device inspects a formation state of a pocket portion formed in a container film of a blister pack and includes: an illumination device that irradiates a container film including the pocket portion with a predetermined electromagnetic wave; an imaging device that takes an image of at least the electromagnetic wave transmitted through a bottom portion of the pocket portion and obtains image data; a control device that extracts, based on the image data, shading pattern data corresponding to a shading pattern occurring in the bottom portion of the pocket portion by irradiation with the electromagnetic wave; a storage that stores a neural network and a model, the model being generated by learning of the neural network using, as learning data, only shading pattern data of a pocket portion without any formation defect among the extracted shading pattern data.
    Type: Grant
    Filed: February 3, 2023
    Date of Patent: November 26, 2024
    Assignee: CKD CORPORATION
    Inventors: Shozo Oda, Yukihiro Taguchi, Eiji Ohta
  • Patent number: 12139407
    Abstract: A plurality of CNTs are drawn out of VACNTs so as to be continuous in lines and are bundled into a thread shape, and a temporary thread bundled into a thread shape is temporarily wound on the first winder. The first winder is then rotated about an axis along a feeding direction of the temporary thread to twist the temporary thread while the temporary thread is fed from the first winder.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: November 12, 2024
    Assignees: HITACHI ZOSEN CORPORATION, TOKUSEN KOGYO CO., LTD.
    Inventors: Norifumi Fujimoto, Hiroyuki Ohue, Eiji Ohta, Tomohiro Yamakawa
  • Patent number: 12051003
    Abstract: A non-transitory computer-readable storage medium storing a program that causes a computer to execute a process, the process includes obtaining a machine learning model having learned characteristic amounts of a plurality of training data including an objective function; calculating similarities between the characteristic amounts of the plurality of training data by inputting the plurality of training data to the obtained machine learning model; specifying a data group having a high similarity with a desired objective function from the characteristic amounts of the plurality of training data based on distances of the calculated similarities; and acquiring an optimum solution for the desired objective function by using the specified data group.
    Type: Grant
    Filed: September 22, 2020
    Date of Patent: July 30, 2024
    Assignee: FUJITSU LIMITED
    Inventors: Eiji Ohta, Hisanao Akima
  • Patent number: 11994477
    Abstract: An inspection device includes: an irradiator that radiates, before content is placed into the pocket, ultraviolet light toward one face of the container film; imaging devices that take images of the container film from another face side of the container film; and a processor that determines, based on the images, whether the pocket includes a pinhole, at least two of the imaging devices being each disposed on respective sides of the container film in a width direction such that the pocket is placed between the two imaging devices, and while the container film is being conveyed along a conveyance path, the two imaging devices take images of the pocket at a timing when the pocket is located at an upstream-side position, a middle-side position, and a downstream-side position of the conveyance path.
    Type: Grant
    Filed: May 26, 2022
    Date of Patent: May 28, 2024
    Assignee: CKD CORPORATION
    Inventors: Takamasa Ohtani, Eiji Ohta, Yukihiro Taguchi
  • Publication number: 20240120035
    Abstract: A non-transitory computer-readable recording medium stores a program for causing a computer to execute a process, the process includes in repeat calculation of electron density of a substance by a self-consistent field method that uses a specific number of wave functions according to cutoff energy, executing a second electron density calculation at an (N+1)-th time (N is an integer greater than or equal to 1) by applying second cutoff energy of a value smaller than first cutoff energy applied to an first electron density calculation at an N-th time, determining whether the electron density obtained by the second electron density calculation at the (N+1)-th time satisfies a predetermined condition, and outputting the value of the second cutoff energy in a case where the condition is not satisfied.
    Type: Application
    Filed: July 13, 2023
    Publication date: April 11, 2024
    Applicant: Fujitsu Limited
    Inventor: Eiji OHTA
  • Patent number: 11842182
    Abstract: A non-transitory computer-readable recording medium stores a program for causing a computer to execute a process, the process includes extracting an optimization method and an optimization non-applicable condition indicating a reason why the optimization method is not applicable, from an optimization report created at a time of compiling software, determining an index value of optimization application easiness for each of a plurality of processing blocks included in the software, based on the optimization method and the optimization non-applicable condition, and determining an optimization target processing block to be optimized among the plurality of processing blocks included in the software, based on the index value.
    Type: Grant
    Filed: November 10, 2021
    Date of Patent: December 12, 2023
    Assignee: FUJITSU LIMITED
    Inventor: Eiji Ohta
  • Publication number: 20230324443
    Abstract: A non-transitory computer-readable recording medium stores a simulation program for causing a computer to execute a process including: generating thinned grids for electromagnetic current computation, according to electric field strength distribution in an equivalent electromagnetic current area; and calculating equivalent electromagnetic currents and far fields, by using the thinned grids.
    Type: Application
    Filed: January 9, 2023
    Publication date: October 12, 2023
    Applicant: Fujitsu Limited
    Inventor: Eiji OHTA
  • Publication number: 20230325465
    Abstract: A non-transitory computer-readable recording medium stores an information processing program for causing a computer to execute a process including: receiving a setting of a parallel calculation condition that is a condition under which calculation resources perform parallel calculation of a target program and includes a number of processes of the target program; based on the parallel calculation condition, extracting a number of processes that maximizes calculation performance in a case where the calculation resources perform eigenvalue calculation of matrix data, for each of a plurality of pieces of matrix data with different sizes; and setting a number of processes to be performed when the target program performs the eigenvalue calculation, based on a number of processes for each of a plurality of pieces of matrix data with different sizes extracted in the extracting and a matrix size of the target program.
    Type: Application
    Filed: January 5, 2023
    Publication date: October 12, 2023
    Applicant: Fujitsu Limited
    Inventor: Eiji OHTA
  • Publication number: 20230303395
    Abstract: A carbon nanotube composite wire 2 includes: a carbon nanotube 6; and a sintered layer 8 attached to a surface of the carbon nanotube 6. The sintered layer 8 includes a large number of silver flakes 14. These silver flakes 14 are bonded to each other by sintering. Flat surfaces 16 of silver flakes 14 partly overlap, or are partly in contact with, flat surfaces 16 of other adjacent silver flakes 14. An electrically conductive network is formed by these silver flakes 14 being adjacent to each other.
    Type: Application
    Filed: August 4, 2021
    Publication date: September 28, 2023
    Applicant: TOKUSEN KOGYO CO., LTD.
    Inventor: Eiji OHTA
  • Publication number: 20230184692
    Abstract: An inspection device inspects a formation state of a pocket portion formed in a container film of a blister pack and includes: an illumination device that irradiates a container film including the pocket portion with a predetermined electromagnetic wave; an imaging device that takes an image of at least the electromagnetic wave transmitted through a bottom portion of the pocket portion and obtains image data; a control device that extracts, based on the image data, shading pattern data corresponding to a shading pattern occurring in the bottom portion of the pocket portion by irradiation with the electromagnetic wave; a storage that stores a neural network and a model, the model being generated by learning of the neural network using, as learning data, only shading pattern data of a pocket portion without any formation defect among the extracted shading pattern data.
    Type: Application
    Filed: February 3, 2023
    Publication date: June 15, 2023
    Applicant: CKD CORPORATION
    Inventors: Shozo Oda, Yukihiro Taguchi, Eiji Ohta
  • Patent number: 11669458
    Abstract: A non-transitory computer-readable recording medium stores an adjustment program for causing a computer to perform a process including: acquiring a computation performance characteristic that indicates a computation performance value that corresponds to each adjustable dimension, through computation in which a cache memory in a processor that includes the cache memory is used; extracting, by using the computation performance characteristic, an adjustment condition for adjusting an adjustable dimension for which a decrease in computation performance due to a cache miss caused by a cache-line conflict in the cache memory occurs; and inserting adjustment processing based on the adjustment condition into a specific program that is executed by the processor and uses the adjustable dimension.
    Type: Grant
    Filed: March 9, 2022
    Date of Patent: June 6, 2023
    Assignee: FUJITSU LIMITED
    Inventor: Eiji Ohta
  • Publication number: 20230029437
    Abstract: A production method of a carbon nanotube yarn includes the steps of: (1) obtaining a web 40 including a large number of carbon nanotubes 36; (2) bringing a slider 24a into contact with the carbon nanotubes 36; and (3) moving the slider 24a in a direction to bundle the carbon nanotubes 36, the direction being inclined with respect to a direction in which the web 40 extends.
    Type: Application
    Filed: October 22, 2020
    Publication date: January 26, 2023
    Applicant: TOKUSEN KOGYO CO., LTD.
    Inventors: Eiji OHTA, Hiroyuki OHUE
  • Publication number: 20230009040
    Abstract: A production method of a long member including a large number of carbon nanotubes includes the steps of: (1) drawing the carbon nanotubes gradually from a first array to obtain a first web 10a; (2) bringing the first web 10a partially into contact with a first holder 12a to hold the first web 10a on the first holder 12a; (3) drawing the carbon nanotubes gradually from a second array to obtain a second web 10b; (4) bringing the second web 10b partially into contact with a second holder 12b to hold the second web 10b on the second holder 12b; and (5) placing a portion of the first web 10a and a portion of the second web 10b on each other to form a joint, the portions of the first and second webs 10a and 10b being in the vicinity of the first and second holders 12a and 12b, respectively, and being placed on each other such that width directions of the first and second webs 10a and 10b are substantially the same.
    Type: Application
    Filed: October 22, 2020
    Publication date: January 12, 2023
    Applicant: TOKUSEN KOGYO CO., LTD.
    Inventors: Eiji OHTA, Hiroyuki OHUE
  • Publication number: 20230004501
    Abstract: A non-transitory computer-readable recording medium stores an adjustment program for causing a computer to perform a process including: acquiring a computation performance characteristic that indicates a computation performance value that corresponds to each adjustable dimension, through computation in which a cache memory in a processor that includes the cache memory is used; extracting, by using the computation performance characteristic, an adjustment condition for adjusting an adjustable dimension for which a decrease in computation performance due to a cache miss caused by a cache-line conflict in the cache memory occurs; and inserting adjustment processing based on the adjustment condition into a specific program that is executed by the processor and uses the adjustable dimension.
    Type: Application
    Filed: March 9, 2022
    Publication date: January 5, 2023
    Applicant: FUJITSU LIMITED
    Inventor: Eiji Ohta
  • Patent number: 11513270
    Abstract: An optical body including: a first optical layer which has a surface having a convex profile in which a plurality of one-directionally extending elongated convex portions are one-dimensionally aligned in one direction; an inorganic layer disposed on the surface of the first optical layer on a side having the convex profile and a second optical layer disposed on a side of the inorganic layer so that the convex profile is embedded; wherein the convex profile meets at least one of the following (1) to (4): (1) a height varies in an extending direction in each of the elongated convex portions, (2) a ridge portion meanders in a direction perpendicular to both the extending direction and a height direction of the convex portion in each of the elongated convex portions, (3) heights of the elongated convex portions adjacent to each other are different from each other, and (4) a triangular prism-shaped convex portion and an elongated convex portion having a curved surface are adjacent to each other.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: November 29, 2022
    Assignee: Dexerials Corporation
    Inventors: Eiji Ohta, Tsutomu Nagahama, Shigehisa Ohkawara, Tatsuya Harimara, Katsuhiro Doi, Kazuhiko Noda, Akihiro Shibata, Kazuo Goto, Yasuyuki Kudo
  • Publication number: 20220348464
    Abstract: A plurality of CNTs are drawn out of VACNTs so as to be continuous in lines and are bundled into a thread shape, and a temporary thread bundled into a thread shape is temporarily wound on the first winder. The first winder is then rotated about an axis along a feeding direction of the temporary thread to twist the temporary thread while the temporary thread is fed from the first winder.
    Type: Application
    Filed: September 4, 2020
    Publication date: November 3, 2022
    Inventors: Norifumi FUJIMOTO, Hiroyuki OHUE, Eiji OHTA, Tomohiro YAMAKAWA
  • Publication number: 20220283098
    Abstract: An inspection device includes: an irradiator that radiates, before content is placed into the pocket, ultraviolet light toward one face of the container film; imaging devices that take images of the container film from another face side of the container film; and a processor that determines, based on the images, whether the pocket includes a pinhole, at least two of the imaging devices being each disposed on respective sides of the container film in a width direction such that the pocket is placed between the two imaging devices, and while the container film is being conveyed along a conveyance path, the two imaging devices take images of the pocket at a timing when the pocket is located at an upstream-side position, a middle-side position, and a downstream-side position of the conveyance path.
    Type: Application
    Filed: May 26, 2022
    Publication date: September 8, 2022
    Applicant: CKD CORPORATION
    Inventors: Takamasa Ohtani, Eiji Ohta, Yukihiro Taguchi