Patents Assigned to Chuo University
  • Publication number: 20240111181
    Abstract: An object of the present invention is to provide an optical switch element, an optical switch device, an optical communication system, and an optical computer capable of operating even in a temperature range higher than the NĂ©el temperature. An optical switch element (10) according to the present invention includes a substance including a plurality of transition metal elements having electrons in d-orbitals, and a plurality of anions arranged around each of the plurality of transition metal elements, in which the plurality of transition metal elements are arranged in a lattice form, t2g-orbitals into which the d-orbitals of each of the plurality of transition metal elements are split are connected annularly, and in a state in which the substance does not have a long-range magnetic order, the polarization of signal light (L1) is rotated when control light (C1) is applied.
    Type: Application
    Filed: December 2, 2021
    Publication date: April 4, 2024
    Applicants: TOHOKU UNIVERSITY, CHUO UNIVERSITY
    Inventors: Shinichiro IWAI, Yohei KAWAKAMI, Tatsuya AMANO, Kenya OHGUSHI, Kenji YONEMITSU
  • Publication number: 20230034441
    Abstract: A pump unit and a pump capable of detecting characteristics of a conveyance article and a method for detecting the characteristics of the conveyance article. A pump unit includes an outer cylinder; an inner cylinder disposed on an inner circumference side of the outer cylinder; and a pressure supply chamber provided between the inner cylinder and the outer cylinder, the pump unit being configured to convey a conveyance article in the inner cylinder by supplying a pressurizing medium into the pressure supply chamber and thereby causing the inner cylinder to expand inwardly in a radial direction, in which the pump unit further includes a conveyance article information acquiring device configured to acquire information on the conveyance article in the inner cylinder at a time when the inner cylinder is expanded.
    Type: Application
    Filed: December 16, 2020
    Publication date: February 2, 2023
    Applicant: CHUO UNIVERSITY
    Inventors: Taro NAKAMURA, Yasuyuki YAMADA, Kota WAKAMATSU, Daiki HAGIWARA, Haruka ADACHI, Daisuke MATSUI
  • Patent number: 11363967
    Abstract: A muscle contraction detection sensor for detecting a muscle contraction that includes: a substrate to be mounted facing a muscle to be detected; at least two pressing members that are disposed on the substrate and are to be pressed against the muscle; and at least two reaction force detection units configured to detect respective reaction forces received by the pressing members, wherein the pressing members include a first pressing member and a second pressing member, the reaction force detection units include a first reaction force detection unit and a second reaction force detection unit, a muscle contraction is detected based on a change in a difference between, or a change in ratios of, the reaction force received by the first pressing member detected by the first reaction force detection unit and the reaction force received by the second pressing member detected by the second reaction force detection unit.
    Type: Grant
    Filed: April 2, 2018
    Date of Patent: June 21, 2022
    Assignee: CHUO UNIVERSITY
    Inventor: Shunji Moromugi
  • Publication number: 20210187455
    Abstract: A kneading method for kneading a mixture by repetitively forming a compressed space that is formed by an expanding-contracting body of a segment in an open state and an expanding-contracting body of a segment in a closed state adjacent to the segment in the open state and filled with the mixture in a compressed state pressed by the expanding-contracting body, by changing a combination of an operation state of each of the plurality of segments.
    Type: Application
    Filed: May 10, 2019
    Publication date: June 24, 2021
    Applicant: CHUO UNIVERSITY
    Inventors: Taro NAKAMURA, Yasuyuki YAMADA, Hiroto HABU, Akihiro IWASAKI
  • Publication number: 20200289031
    Abstract: A muscle contraction detection sensor for detecting a muscle contraction that includes: a substrate to be mounted facing a muscle to be detected; at least two pressing members that are disposed on the substrate and are to be pressed against the muscle; and at least two reaction force detection units configured to detect respective reaction forces received by the pressing members, wherein the pressing members include a first pressing member and a second pressing member, the reaction force detection units include a first reaction force detection unit and a second reaction force detection unit, a muscle contraction is detected based on a change in a difference between, or a change in ratios of, the reaction force received by the first pressing member detected by the first reaction force detection unit and the reaction force received by the second pressing member detected by the second reaction force detection unit.
    Type: Application
    Filed: April 2, 2018
    Publication date: September 17, 2020
    Applicant: CHUO UNIVERSITY
    Inventor: Shunji MOROMUGI
  • Patent number: 10537257
    Abstract: While there are various methods for acquiring biological information based on pulse waveforms, none of the methods have been implemented in a biological information reading device that can be constantly operated stably. Provided is a biological information reading device which has achieved high accuracy by removing disturbance components from a pulse signal acquired by means of a multi-axis pressure sensor or a plurality of single-axis pressure sensors, and which can be attached to an examinee at all times for continuous observation taking advantage of the small and light-weight feature of the pressure sensors.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: January 21, 2020
    Assignees: SHINANO KENSHI CO., LTD., CHUO UNIVERSITY
    Inventors: Hiroyuki Nakamura, Tetsuji Dohi, Kota Kudo
  • Publication number: 20190328892
    Abstract: Provided is a therapeutic agent for ischemic disease that exhibits a tissue-protecting effect against tissue damage associated with ischemia. The therapeutic agent includes, as an active ingredient, a hemoglobin-albumin complex in which albumin serving as a shell is bound to hemoglobin serving as a core via a crosslinker. The therapeutic agent is used in treatment of ischemic disease.
    Type: Application
    Filed: July 6, 2017
    Publication date: October 31, 2019
    Applicant: CHUO UNIVERSITY
    Inventors: Teruyuki KOMATSU, Ryosuke FUNAKI, Takeo ABUMIYA, Masayuki GEKKA, Kiyohiro HOUKIN
  • Patent number: 10370687
    Abstract: It is an object of the present invention to provide the eukaryotic microalgae, which have been genetically modified such that larger amounts of assimilation products produced by photosynthesis are directed to the synthesis of triglyceride (=triacylglycerol; TAG), and specifically, the present invention relates to a genetically modified strain of eukaryotic microalgae, in which a gene encoding an AGL1 protein is highly expressed, or a gene encoding an FAT1 protein and/or a gene encoding a DGAT2 protein are further highly expressed, as well as the gene encoding an AGL1 protein, wherein TAG productivity is improved in comparison to the parent strain thereof.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: August 6, 2019
    Assignees: CHUO UNIVERSITY, DENSO CORPORATION
    Inventors: Shigeaki Harayama, Yoko Ide, Jun Abe, Yuki Kasai, Norihide Kurano
  • Patent number: 9947396
    Abstract: To improve a reading speed and a writing speed while preventing occurrence of disturbance in a resistance storage element, specifically, a nonvolatile storage device that has a memory having at least one nonvolatile resistance storage element and a control unit configured to write a high resistance state or a low resistance state to the resistance storage element, wherein the control unit applies a bias to the resistance storage element in a verification operation carried out after writing the high resistance state, or applies a bias to the resistance storage element in a verification operation carried out after writing the low resistance state, these biases being in directions opposite to each other.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: April 17, 2018
    Assignee: CHUO UNIVERSITY
    Inventors: Tomoko Iwasaki, Kosuke Miyaji, Ken Takeuchi
  • Patent number: 9790461
    Abstract: A culture method for microalgae that cultures unicellular green microalgae belonging to the genus Coccomyxa and groups of organisms closely related thereto, or the Watanabea clade, in an open outdoor culture system using broth having a pH of 4 or lower. A culture method for microalgae that cultures microalgae of the genus Coccomyxa and groups of organisms closely related thereto, or Pseudococcomyxa, in an open outdoor culture system using broth having a pH of 4 or lower containing ammonia nitrogen.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: October 17, 2017
    Assignees: DENSO CORPORATION, Kyoto University, Chuo University
    Inventors: Minoru Kurata, Hiroaki Fukuda, Norihide Kurano, Hideaki Miyashita, Shigeaki Harayama
  • Patent number: 9753652
    Abstract: To reduce deterioration of non-volatile memory and write data at higher speed, writing data is stored in a ReRAM when a page utilization rate R is lower than a threshold Rth1 and/or the writing data is frequently-rewritten data. With an empty space Semp2 in the ReRAM being less than a threshold Sth (step S110), when the data in the ReRAM is infrequently-rewritten data and the page utilization rate R obtained if target data is stored in a flash memory 22 is equal to or higher than a threshold value Rth3 (steps S120 and S130), data of logical sectors contained in N logical page addresses stored in a transfer list is read from the ReRAM to be written to the flash memory (steps S140 to S160). These steps reduce deterioration of the flash memory and allow higher data writing.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: September 5, 2017
    Assignee: CHUO UNIVERSITY
    Inventors: Chao Sun, Kosuke Miyaji, Ken Takeuchi
  • Patent number: 9684464
    Abstract: A semiconductor storage device includes at least one memory from among a primary memory, a mirror memory storing data corresponding to data stored in the primary memory, and a buffer memory; and a controller that controls the at least one memory so as to store data in the at least one memory and read data from the at least one memory.
    Type: Grant
    Filed: November 21, 2013
    Date of Patent: June 20, 2017
    Assignee: CHUO UNIVERSITY
    Inventors: Ken Takeuchi, Shuhei Tanakamaru
  • Publication number: 20160147652
    Abstract: Degradation in processing capability due to copying during garbage collection is reduced. A data storage system includes a memory unit provided with a memory, into which data are written in units of pages, and a memory controller that controls writing of data to the memory; and a controller that indicates, to the memory controller, a logical page address to which data are to be written. The memory controller determines a target block that is a block to be erased when garbage collection is next performed and provides the controller with information on a logical page address corresponding to a physical page address of a valid page in the target block. The controller instructs the memory controller to write data to the logical page address received from the memory controller.
    Type: Application
    Filed: May 8, 2014
    Publication date: May 26, 2016
    Applicants: CHUO UNIVERSITY, CHUO UNIVERSITY
    Inventors: Kosuke MIYAJI, Chao SUN, Ken TAKEUCHI
  • Patent number: 9343143
    Abstract: To improve a reading speed and a writing speed while preventing occurrence of disturbance in a resistance storage element, specifically, a nonvolatile storage device that has a memory having at least one nonvolatile resistance storage element and a control unit configured to write a high resistance state or a low resistance state to the resistance storage element, wherein the control unit applies a bias to the resistance storage element in a verification operation carried out after writing the high resistance state, or applies a bias to the resistance storage element in a verification operation carried out after writing the low resistance state, these biases being in directions opposite to each other.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: May 17, 2016
    Assignee: CHUO UNIVERSITY
    Inventors: Tomoko Iwasaki, Kosuke Miyaji, Ken Takeuchi
  • Publication number: 20150309744
    Abstract: A semiconductor storage device includes at least one memory from among a primary memory, a minor memory storing data corresponding to data stored in the primary memory, and a buffer memory; and a controller that controls the at least one memory so as to store data in the at least one memory and read data from the at least one memory.
    Type: Application
    Filed: November 21, 2013
    Publication date: October 29, 2015
    Applicant: CHUO UNIVERSITY
    Inventors: Ken TAKEUCHI, Shuhei TANAKAMARU
  • Publication number: 20150228339
    Abstract: To improve a reading speed and a writing speed while preventing occurrence of disturbance in a resistance storage element, specifically, a nonvolatile storage device includes a memory including at least one nonvolatile resistance storage element and a control unit configured to write a high resistance state or a low resistance state to the resistance storage element, wherein the control unit applies a bias to the resistance storage element in a verification operation carried out after writing the high resistance state, or applies a bias to the resistance storage element in a verification operation carried out after writing the low resistance state, these biases being in directions opposite to each other. An object of the present invention is to improve a reading speed and a writing speed while preventing occurrence of disturbance in a resistance storage element.
    Type: Application
    Filed: August 9, 2013
    Publication date: August 13, 2015
    Applicant: CHUO UNIVERSITY
    Inventors: Tomoko Iwasaki, Kosuke Miyaji, Ken Takeuchi
  • Publication number: 20150220273
    Abstract: To reduce deterioration of non-volatile memory and write data at higher speed, writing data is stored in a ReRAM when a page utilization rate R is lower than a threshold Rth1 and/or the writing data is frequently-rewritten data. With an empty space Semp2 in the ReRAM being less than a threshold Sth (step S110), when the data in the ReRAM is infrequently-rewritten data and the page utilization rate R obtained if target data is stored in a flash memory 22 is equal to or higher than a threshold value Rth3 (steps S120 and S130), data of logical sectors contained in N logical page addresses stored in a transfer list is read from the ReRAM to be written to the flash memory (steps S140 to S160). These steps reduce deterioration of the flash memory and allow higher data writing.
    Type: Application
    Filed: August 20, 2013
    Publication date: August 6, 2015
    Applicant: CHUO UNIVERSITY
    Inventors: Chao Sun, Kosuke Miyaji, Ken Takeuchi
  • Patent number: 9058737
    Abstract: A wakefulness-maintaining device capable of maintaining a driver's wakefulness by making the driver aware of changes in sound characteristics.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: June 16, 2015
    Assignee: Chuo University
    Inventors: Wataru Nakai, Hiroyuki Kubotani, Takeshi Toi, Masayuki Satomi
  • Publication number: 20150134263
    Abstract: There is provided an information processing apparatus including: an input unit inputting first vibration information observed from a moving body; a generating unit generating second vibration information based on a periodic function including at least one parameter that models periodic motion of the moving body; and an estimating unit estimating the at least one parameter based on a comparison result for the first vibration information inputted by the input unit and the second vibration information generated by the generating unit. The estimating unit repeatedly estimates the at least one parameter based on a comparison result for the first vibration information and the second vibration information that has been regenerated by the generating unit using the estimated at least one parameter.
    Type: Application
    Filed: October 20, 2014
    Publication date: May 14, 2015
    Applicants: Oki Electric Industry Co., Ltd., Chuo University
    Inventors: Kurato MAENO, Kohei YAMAMOTO, Toshinari KAMAKURA
  • Patent number: 8889830
    Abstract: A novel hemoglobin-albumin complex which has high stability of the oxygenated form, has high biocompatibility, and is easily prepared (synthesized), and an artificial plasma expander and an artificial oxygen carrier containing the complex are provided. The hemoglobin-albumin complex of the invention is characterized by having hemoglobin as the core, and albumin as the shell bound via a crosslinker to the above hemoglobin. Also, the artificial oxygen carrier of the invention is characterized by containing the hemoglobin-albumin complex of the invention.
    Type: Grant
    Filed: February 20, 2012
    Date of Patent: November 18, 2014
    Assignee: Chuo University
    Inventors: Teruyuki Komatsu, Daiki Tomita