Patents Assigned to Kyushu Institute of Technology
  • Patent number: 12285864
    Abstract: A link actuation device includes a proximal link hub, a distal link hub, link mechanisms that couple the link hubs, an actuator, and a control device. The actuator includes motors provided for link mechanisms, respectively. The control device stores a map in which drive command values for each of the motors corresponding to a plurality of discrete positions within a movable range of the distal link hub are stored. Upon receipt of a command value for movement to a position that coincides with none of the plurality of positions within the movable range, the control device determines a drive command value for each of the motors by interpolating a region surrounded by four points at the plurality of positions on the map using a polynomial curved surface formula.
    Type: Grant
    Filed: March 9, 2023
    Date of Patent: April 29, 2025
    Assignees: KYUSHU INSTITUTE OF TECHNOLOGY, NTN Corporation
    Inventors: Akihiro Hayashi, Hirofumi Fukumaru, Toshiki Takaki
  • Patent number: 12258507
    Abstract: The present invention provides a fluorescent diamond containing an MV center emitting fluorescence at a concentration of 1×1014/cm3 or higher, where M represents a metal or metalloid, and V represents a vacancy.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: March 25, 2025
    Assignees: DAICEL CORPORATION, KYUSHU INSTITUTE OF TECHNOLOGY
    Inventors: Motoi Nakao, Shinji Nagamachi, Masahiro Nishikawa, Ming Liu
  • Patent number: 12259410
    Abstract: Provided are a Rogowski-type current sensor capable of being flexibly deformed and easily mounted even when a clearance is narrow, an inverter, and a method of mounting a Rogowski-type current sensor. A main body of a Rogowski-type current sensor is formed from a belt-shaped flexible wiring board. The main body includes a measuring portion in which a Rogowski coil is formed in a length direction by a conductive pattern. When measuring a current flowing through a wiring of a measurement target, the main body is mounted such that it is bent in an annular shape to surround the wiring of the measurement target, and front surfaces (first main surfaces) are overlaid with each other so as to surround the wiring of the measurement target.
    Type: Grant
    Filed: March 10, 2022
    Date of Patent: March 25, 2025
    Assignee: KYUSHU INSTITUTE OF TECHNOLOGY
    Inventor: Ichiro Omura
  • Patent number: 12196616
    Abstract: According to one implementation, an inflammable spark estimation system includes: a photodetector for measuring intensity of discharge light arising from a spark arising from a structural object made of a plurality of materials; and a data processing system configured to determine whether the spark has inflammability, based on the intensity of the discharge light measured by the photodetector, with referring to determination information. The determination information has been determined based on features of waveforms of wavelength spectra of possible discharge light arising from possible inflammable sparks respectively arising from possible materials of which the structural object may be made. The data processing system is configured to further determine which of the plurality of the materials the spark has arisen from, based on the intensity of the discharge light measured by the photodetector, with referring to the determination information, when the spark has been determined to have the inflammability.
    Type: Grant
    Filed: July 18, 2022
    Date of Patent: January 14, 2025
    Assignees: SUBARU CORPORATION, Kyushu Institute of Technology
    Inventors: Takayuki Nishi, Shinya Ohtsuka
  • Patent number: 12149456
    Abstract: A communication system is designed to achieve high speed of periodic communication while ensuring reliability of communications. An access point and multiple stations are provided. A beacon cycle is set as a reference cycle and a communication period of N reference cycle is set for transmitting data to perform periodic communication. Successive communication periods are overlapped by an overlapping of M cycle which is shorter than the N cycle. The communication period has a normal transmission period and one or more cycles of retransmission period, and the normal transmission period of the next communication period overlaps the retransmission period of the previous communication period. Orthogonal frequency division multiple access method is used for communication between the access point and stations.
    Type: Grant
    Filed: January 9, 2022
    Date of Patent: November 19, 2024
    Assignee: Kyushu Institute of Technology
    Inventors: Akinori Nagao, Yuhei Nagao, Masayuki Kurosaki, Hiroshi Ochi, Kyoshiro Sakamoto
  • Patent number: 12071187
    Abstract: A spherical body drive type movement device 10 includes rotary bodies 14, 15, and 16 rotating n number of driving spherical bodies 11, 12, and 13 by being rotationally driven in a state of being in contact from two different directions with each of the driving spherical bodies 11, 12, and 13, and moves on a traveling surface G. The rotary bodies 14, 15, and 16 come into contact with the driving spherical bodies 11, 12, and 13 at positions higher than centers P1, P2, and P3 of the driving spherical bodies 11, 12, and 13 in contact and inside a virtual inverted n-gonal pyramid H or, at positions higher than the centers P1, P2, and P3 of the driving spherical bodies 11, 12, and 13 in contact and on lateral faces ?, ?, and ? of the virtual inverted n-gonal pyramid H.
    Type: Grant
    Filed: November 7, 2019
    Date of Patent: August 27, 2024
    Assignee: KYUSHU INSTITUTE OF TECHNOLOGY
    Inventors: Hiroyuki Miyamoto, Yoshiki Matsumoto
  • Patent number: 11986905
    Abstract: A diamond smoothing method of irradiating a laser light onto a raised and recessed surface of a diamond, so as to smooth the raised and recessed surface, by ablation that is caused to occur in the diamond by irradiation of the laser light onto the raised and recessed surface. The method includes: a threshold-energy-density detecting step of irradiating the laser light onto the raised and recessed surface, and changing an irradiation energy density of the laser light, so as to detect a threshold energy density as a lower threshold value of the irradiation energy density that causes the ablation to occur; and a smoothing processing step of executing a smoothing processing by irradiating the laser light onto the raised and recessed surface with a smoothing irradiation energy density that is set to be within a range from 1 to 15 times as large as the threshold energy density.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: May 21, 2024
    Assignees: KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION, KYUSHU INSTITUTE OF TECHNOLOGY, OSG CORPORATION
    Inventors: Hiroshi Ikenoue, Tsuyoshi Yoshitake, Yuki Katamune, Koki Murasawa
  • Patent number: 11952584
    Abstract: Antimicrobial activity exhibited against a wide variety of plant pathogens. A functional peptide consisting of the amino acid sequence: YYGFPAFSERTRKFWRIWKGKTS (SEQ ID NO: 1) or an amino acid sequence having an identity of 85% or more with respect to the amino acid sequence, or consisting of a partial peptide thereof.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: April 9, 2024
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, KYUSHU INSTITUTE OF TECHNOLOGY, NATIONAL UNIVERSITY CORPORATION TOKAI NATIONAL HIGHER EDUCATION RESEARCH SYSTEM, CHUBU UNIVERSITY EDUCATIONAL FOUNDATION
    Inventors: Madoka Abe, Satoshi Kondo, Takehiko Shimada, Kosuke Hanada, Keiko Mochida, Takashi Tsuge
  • Publication number: 20240014758
    Abstract: A power conversion device is provided which is capable of balancing impedance relatively easily and suppressing noise caused by a common mode current when a three-phase AC output is applied to drive a motor.
    Type: Application
    Filed: November 17, 2021
    Publication date: January 11, 2024
    Applicants: SANDEN CORPORATION, KYUSHU INSTITUTE OF TECHNOLOGY
    Inventors: Kohei TAKADA, Koji KOBAYASHI, Tohlu MATSUSHIMA
  • Publication number: 20230376737
    Abstract: A three-dimensional electric element 10 comprises four or more nonlinear units 11 each having nonlinear current-voltage characteristics and an electric conductor 12 connecting the nonlinear units 11, and the nonlinear units 11 are arranged in a three-dimensional manner. A machine learning system 20 comprises a three-dimensional electric element 10 that includes four or more nonlinear units 11 each having nonlinear current-voltage characteristics and an electric conductor 12 connecting the nonlinear units 11 being arranged in a three-dimensional manner, and an input electrode 13 and an output electrode 14, the input electrode 13 and the output electrode 14 are connected to the three-dimensional electric element 10.
    Type: Application
    Filed: October 7, 2021
    Publication date: November 23, 2023
    Applicant: Kyushu Institute of Technology
    Inventors: Hirofumi Tanaka, Yuki Usami, Azhari Saman
  • Patent number: 11801372
    Abstract: A microneedle array to be used instead of a syringe has, at a tip side of each microneedle, two or four puncture portions disposed facing each other. The puncture portions each have a part of a side surface of each microneedle as outer surfaces, respectively, and one of the puncture portions is shorter than the other(s). A housing section capable of holding a drug is formed by inner surfaces of the puncture portions of each microneedle. The housing section opens toward the tip side and lateral directions orthogonal to an axis core of each microneedle, and has a central bottom surface at a bottom end. The inner surfaces facing each other and forming the housing section of each microneedle each have a downward slope, with a width between the inner surfaces getting narrower as it goes down from tips of the respective puncture portions toward the central bottom surface.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: October 31, 2023
    Assignees: MISHIMA KOSAN CO., LTD., KYUSHU INSTITUTE OF TECHNOLOGY
    Inventors: Toshiaki Atari, Masaaki Matsuo, Yasunori Tashiro, Masaya Hara, Junji Kuroki, Takahiro Ito, Tomohiro Hikima
  • Patent number: 11795424
    Abstract: The present invention provides a cell culture vessel/sample observation cell that is capable of culturing cells or cell tissue in three dimensions and allowing a three-dimensional structure of the cells or the cell tissue to be perceived easily. The cell culture vessel/sample observation cell according to the present invention for containing a culture gel in which the cells or the cell tissue is embedded, comprises a frame, at least one window bordered by the frame, and at least one projection projecting from the frame inwardly into the cell culture vessel/sample observation cell, wherein the at least one window is light-permeable and nutrient component-permeable and is placed in such a way as to allow for multifaceted observation of the cells or the cell tissue, and the projection has a feature point to be placed at a position where the cells or the cell tissue as well as the feature point can be observed from the window.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: October 24, 2023
    Assignees: University Public Corporation Osaka, National University Corporation Kyushu Institute of Technology
    Inventors: Masaya Hagiwara, Tomohiro Kawahara
  • Patent number: 11691276
    Abstract: A link actuation apparatus that actuates a parallel link mechanism where a spherical drive mechanism is constructed includes a controller configured to calculate, based on spherical trigonometry, an attitude of a second link hub from angles ?A1 and ?A2 that represent the attitude of a first end link member with respect to a first link hub in two of at least three link mechanisms. The link actuation apparatus capable of performing forward transformation in real time is thus provided.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: July 4, 2023
    Assignees: KYUSHU INSTITUTE OF TECHNOLOGY, NTN CORPORATION
    Inventors: Akihiro Hayashi, Hirofumi Fukumaru, Toshiki Takagi, Kenzou Nose, Hideki Matsuzawa
  • Publication number: 20230174176
    Abstract: Provided is a mobile device 10 with a spherical drive system that moves over a travel surface G and comprises four or more rotors 15, 15?, 16, 16?, 17, 17?, 18 and 18? that are rotationally driven by driving sources 20, 22, 24 and 26 while in contact with four driving spheres 11, 12, 13 and 14 from two different directions, thereby causing the driving spheres to rotate, wherein the centers P1, P2, P3 and P4 of the driving spheres are positioned at the side edges S1, S2, S3 and S4 of a virtual inverted hip roof pentahedron H having a base e disposed at a position higher than the center of each driving sphere and a ridge O disposed at a position lower than the center of each driving sphere, respectively.
    Type: Application
    Filed: February 17, 2021
    Publication date: June 8, 2023
    Applicant: Kyushu Institute of Technology
    Inventor: Hiroyuki Miyamoto
  • Patent number: 11668375
    Abstract: A parallel link mechanism includes a proximal end member and three or more link mechanisms. Three or more link mechanisms connect the proximal end member to a distal end member. In three or more link mechanisms, a first center axis of a first revolute pair unit and a second center axis of a second revolute pair unit intersect at a spherical link center point. Fifth center axes of respective fifth revolute pair units of three or more link mechanisms overlap each other and intersect with the spherical link center point.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: June 6, 2023
    Assignees: KYUSHU INSTITUTE OF TECHNOLOGY, NTN CORPORATION
    Inventors: Akihiro Hayashi, Hirofumi Fukumaru, Taiga Okamoto, Kenzou Nose, Hideki Matsuzawa, Hiroshi Isobe, Seigo Sakata
  • Publication number: 20230077398
    Abstract: A tracking device includes full-spherical cameras arranged on the right and left. The tracking device pastes a left full-spherical camera image captured with the full-spherical camera on a spherical object, and is installed with a virtual camera inside the spherical object. The virtual camera may freely rotate in a virtual image capturing space formed inside the spherical object, and acquire an external left camera image. Similarly, the tracking device is also installed with a virtual camera that acquires a right camera image, and forms a convergence stereo camera by means of the virtual cameras. The tracking device tracks a location of a subject by means of a particle filter by using the convergence stereo camera formed in this way. In a second embodiment, the full-spherical cameras are vertically arranged and the virtual cameras are vertically installed.
    Type: Application
    Filed: March 8, 2021
    Publication date: March 16, 2023
    Applicants: AISIN CORPORATION, KYUSHU INSTITUTE OF TECHNOLOGY
    Inventors: Hideo YAMADA, Masatoshi SHIBATA, Shuichi ENOKIDA
  • Patent number: 11574221
    Abstract: Provided is a state determination apparatus that appropriately performs pattern classification processing and/or pattern determination processing even when a map generated by the SOM technique includes discontinuous image regions. In the state determination apparatus, the matching processing unit obtains adaptability data indicating a correlation degree between template data indicating a state and the SOM output data. The state determination unit obtains a state evaluation value based on an activity value obtained by the activity value obtaining unit and the adaptability value. The time series estimation unit determines a state of an input data based on the state evaluation value and state transition probability between states. This allows for appropriately performing pattern classification processing and/or pattern determination processing even when a map generated by the SOM technique includes discontinuous image regions.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: February 7, 2023
    Assignees: MEGACHIPS CORPORATION, KYUSHU INSTITUTE OF TECHNOLOGY
    Inventors: Norikazu Ikoma, Hiromu Hasegawa
  • Patent number: 11481919
    Abstract: An image recognition device includes: an image processing device that acquires a feature amount from an image; and an identification device that determines whether a prescribed identification object is present in the image, and identifies the identification object. The identification device includes a BNN that has learned the identification object in advance, and performs identification processing by performing a binary calculation with the BNN on the feature amount acquired by the image processing device. Then, the identification device selects a portion effective for identification from among high-dimensional feature amounts output by the image processing device to reduce the dimensions used in identification processing, and copies low-dimensional feature amounts output by the image processing device to increase dimensions.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: October 25, 2022
    Assignees: AISIN CORPORATION, KYUSHU INSTITUTE OF TECHNOLOGY
    Inventors: Hideo Yamada, Ryuya Muramatsu, Masatoshi Shibata, Hakaru Tamukoh, Shuichi Enokida, Yuta Yamasaki
  • Publication number: 20220334152
    Abstract: A state estimation system for a power conversion semiconductor apparatus in an embodiment includes an analysis processing unit and an estimation processing unit. The analysis processing unit projects points indicating a combination of a voltage detection value in first time history data of a voltage between the pair of main terminals detected when the pair of main terminals are forward-biased and when the pair of main terminals are reverse-biased and a current detection value in second time history data of detection values of both a forward current and a reverse current between the pair of main terminals onto a coordinate plane including a voltage axis and a current axis on the basis of the first time history data and the second time history data in the power conversion semiconductor apparatus including the pair of main terminals and derives a distribution of the projected points on the coordinate plane.
    Type: Application
    Filed: August 28, 2020
    Publication date: October 20, 2022
    Applicants: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION, KYUSHU INSTITUTE OF TECHNOLOGY
    Inventors: Haruyuki YAMAGUCHI, Makoto MUKUNOKI, Masahiko TSUKAKOSHI, Ichiro OMURA, Masanori TSUKUDA, Li GUAN, Kazuha WATANABE
  • Patent number: 11468572
    Abstract: An image processing device has a function for plotting a luminance gradient co-occurrence pair of an image on a feature plane and applying an EM algorithm to form a GMM. The device learns a pedestrian image and creates a GMM, subsequently learns a background image and creates a GMM, and calculates a difference between the two and generates a GMM for relearning based on the calculation. The device plots a sample that conforms to the GMM for relearning on the feature plane by applying an inverse function theorem. The device forms a GMM that represents the distribution of samples at a designated mixed number and thereby forms a standard GMM that serves as a standard for image recognition. When this mixed number is set to less than a mixed number designated earlier, the dimensions with which an image is analyzed are reduced, making it possible to reduce calculation costs.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: October 11, 2022
    Assignees: AISIN CORPORATION, KYUSHU INSTITUTE OF TECHNOLOGY
    Inventors: Hideo Yamada, Kazuhiro Kuno, Masatoshi Shibata, Shuichi Enokida, Hiromichi Ohtsuka