Patents Assigned to Kansai University
  • Publication number: 20240410791
    Abstract: This tire state estimation method includes the following. (1) Disposing, on the inner side of a tire, at least one power generator that generates voltage in response to deformation of the tire. (2) Acquiring measurement data in a time series obtained by measuring, while the tire is rotating, the voltage and/or a physical quantity corresponding to the voltage. (3) Identifying a peak that repeatedly appears in the measurement data. (4) Identifying a value of the peak and/or an interval of the peak. (5) Estimating the state of the tire on the basis of the identified value and/or the identified interval. The power generator is provided with a first member and a second member. The first member and the second member are configured such that one is positively charged and the other is negatively charged in accordance with pressure applied to the first member and the second member.
    Type: Application
    Filed: September 28, 2022
    Publication date: December 12, 2024
    Applicants: Sumitomo Rubber Industries, Ltd., The School Corporation Kansai University
    Inventors: Takahiro FUJIWARA, Mutsuki SUGIMOTO, Kenichi KURODA, Kyota SUGIOKA, Hiroshi TANI
  • Patent number: 12144625
    Abstract: Provided is a puncture needle that receives lower puncture resistance than conventional techniques. A puncture needle in accordance with an aspect of the present invention includes a needle body (10) that includes a main portion (12) and a distal portion (11) tapering from the main portion (12) and that is rotatable about a central axis (1) of the needle body (10), the needle body (10) including needle parts (15) separated by a boundary along the central axis, each of the needle parts (15) being independently translatable along the central axis (1).
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: November 19, 2024
    Assignees: The School Corporation Kansai University, Aiki Riotech Corporation
    Inventors: Seiji Aoyagi, Hajime Matsumoto
  • Publication number: 20240123776
    Abstract: A tire assembly includes a tire for mounting on a vehicle, an elastic body disposed on an inner side of the tire, and a power generation body disposed between an inner surface of the tire and the elastic body. The power generation body includes a first member and a second member. The first member has a first insulating film forming a first surface. The second member has a second insulating film forming a second surface that faces the first surface and contacts the first surface. The elastic body biases the power generation body toward the inner surface of the tire.
    Type: Application
    Filed: October 6, 2021
    Publication date: April 18, 2024
    Applicants: Sumitomo Rubber Industries, Ltd., The School Corporation Kansai University
    Inventors: Mutsuki SUGIMOTO, Hiroshi TANI, Kenichi KURODA, Takahiro FUJIWARA, Kyota SUGIOKA
  • Patent number: 11871678
    Abstract: A magnetic memory device includes a first magnetic memory device, a second magnetic memory device, a pulse power supplying current pulses to the first and second magnetic memory devices; and a switch configured to selectively connect the pulse power to one of the first and second magnetic memory devices. A resistance value of an MTJ device composed of the first fixed layer, the first non-magnetic layer, and the free layer is different from a resistance value of a MTJ device composed of the second fixed layer, the second non-magnetic layer, and the free layer.
    Type: Grant
    Filed: January 21, 2022
    Date of Patent: January 9, 2024
    Assignees: Samsung Electronics Co., Ltd., Kansai University, National University Corporation Ehime University
    Inventors: Yoshiaki Sonobe, Syuta Honda, Yasuaki Nakamura, Yoshihiro Okamoto
  • Patent number: 11852970
    Abstract: A material for lithography containing a tellurium-containing compound or a tellurium-containing resin, a production method therefor, a composition for lithography, a pattern formation method, a compound, a resin, and a method for purifying the compound or the resin are provided. The compounds and materials can provide for high solubility in a safe solvent.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: December 26, 2023
    Assignees: Mitsubishi Gas Chemical Company, Inc., A School Corporation Kansai University
    Inventors: Hiroto Kudo, Masatoshi Echigo, Takumi Toida, Takashi Sato
  • Publication number: 20220238796
    Abstract: A magnetic memory device includes a first magnetic memory device, a second magnetic memory device, a pulse power supplying current pulses to the first and second magnetic memory devices; and a switch configured to selectively connect the pulse power to one of the first and second magnetic memory devices. A resistance value of an MTJ device composed of the first fixed layer, the first non-magnetic layer, and the free layer is different from a resistance value of a MTJ device composed of the second fixed layer, the second non-magnetic layer, and the free layer.
    Type: Application
    Filed: January 21, 2022
    Publication date: July 28, 2022
    Applicants: Samsung Electronics Co., Ltd., Kansai University, National University Corporation Ehime University
    Inventors: Yoshiaki SONOBE, Shuta HONDA, Yasuaki NAKAMURA, Yoshihiro OKAMOTO
  • Patent number: 11322176
    Abstract: A method of manufacturing a magnetic recording medium forms an unfinished product including a magnetic recording layer and a protection layer that are successively formed on a substrate, and forms a lubricant layer on the protection layer of the unfinished product. The lubricant layer is formed by coating a first organic fluorine compound on the protection layer of the unfinished product, and supplying a gas, including a second organic fluorine compound, onto the protection layer of the unfinished product, and decomposing the second organic fluorine compound by Townsend discharge and ultraviolet ray irradiation. The protection layer includes carbon, and the first organic fluorine compound includes a functional group at a terminal thereof.
    Type: Grant
    Filed: June 9, 2020
    Date of Patent: May 3, 2022
    Assignees: SHOWA DENKO K.K., The School Corporation Kansai University
    Inventors: Hiroshi Tani, Hiroshi Sakai, Eishin Yamakawa, Kazuki Shindo
  • Publication number: 20220046358
    Abstract: A first seat noise control device corrects sound collected by a microphone to sound at a listening position of a user seated on a first seat, generates a cancel sound that cancels, at the first seat, the sound of a second seat audio source output from a second seat speaker by using an adaptive filter, and outputs the cancel sound from a first seat speaker. A second seat noise control device corrects the sound collected by the microphone to sound at the listening position of the user seated on the second seat, generates a cancel sound that cancels, at the second seat, the sound of a first seat audio source output from the first seat speaker using an adaptive filter, and outputs the cancel sound from the second seat speaker.
    Type: Application
    Filed: August 2, 2021
    Publication date: February 10, 2022
    Applicants: ALPS ALPINE CO., LTD., A School Corporation Kansai University
    Inventors: Ryosuke Tachi, Yoshinobu Kajikawa
  • Publication number: 20220005452
    Abstract: A first variable filter receives a sound of a second seat audio source as an input and generates a cancel sound for canceling the sound of the second seat audio source at a first seat. The transfer functions of the first variable filter and the second variable filter are updated such that the level of a signal obtained by subtracting the output of the auxiliary filter that generates a correction signal for correcting the difference between the positions of the first seat microphone and the first seat and the output of the second variable filter that receives the sound of the first seat audio source from the output of the first seat microphone is minimized. While the level of the signal exceeds a threshold, the signal is relayed to the second seat as a spoken voice.
    Type: Application
    Filed: June 29, 2021
    Publication date: January 6, 2022
    Applicants: ALPS ALPINE CO., LTD., A School Corporation Kansai University
    Inventors: Ryosuke Tachi, Yoshinobu Kajikawa
  • Publication number: 20220005453
    Abstract: In a first system signal processing unit, a first system auxiliary filter generates a correction signal for correcting an error signal from a noise signal, a first system subtractor subtracts the correction signal from an output of a first microphone to obtain an error signal, an adaptive filter performs an adaptive operation using the error signal to generate a cancel sound output from a first speaker, and a DMS detects a position of a user's ear. When the position of the user's ear moves, the controller stops the adaptive operation, updates the transfer function of the first system auxiliary filter to the transfer function corresponding to the noise cancel position matching the position of the user's ear, gradually changes the transfer function of the adaptive filter to the transfer function corresponding to the matching noise cancel position, and resumes the adaptive operation after the change is completed.
    Type: Application
    Filed: June 29, 2021
    Publication date: January 6, 2022
    Applicants: ALPS ALPINE CO., LTD., A School Corporation Kansai University
    Inventors: Ryosuke Tachi, Yuji Saito, Yoshinobu Kajikawa
  • Publication number: 20220005450
    Abstract: In a first system signal processing unit, an adaptive filter generates a noise cancel sound, a first system selector selects an output of a first system auxiliary filter corresponding to a noise cancel position matching a detected position of a right ear of a user from a plurality of first system auxiliary filters corresponding to different noise cancel positions, and a first system subtractor subtracts the selected output from an output of a first microphone and outputs the subtracted result as an error signal to a first system adaptive filter and a second system adaptive filter of a second system signal processing unit. The noise cancel positions are arranged at predetermined intervals in a space where the user can move the right ear due to turning and side bending of the head within a predetermined range in the up-down and front-back directions.
    Type: Application
    Filed: June 29, 2021
    Publication date: January 6, 2022
    Applicants: ALPS ALPINE CO., LTD., A School Corporation Kansai University
    Inventors: Ryosuke Tachi, Yoshinobu Kajikawa
  • Publication number: 20220007109
    Abstract: Adaptive operations of a first noise control system and a second noise control system may include a speaker that outputs noise cancellation sound, a microphone that detects an error signal, an auxiliary filter that generates, from a noise signal, a correction signal that corrects the error signal so that a difference in a position between the microphone and a noise cancellation position is compensated, and an adaptive filter that performs an adaptive operation using the corrected error signal to generate the noise cancellation sound from the noise signal are alternately performed. A transfer function learned in a state in which the second noise control system is stopped is set in the auxiliary filter of the first noise control system, and a transfer function learned in a state in which the adaptive operation of the first noise control system is stopped is set in the auxiliary filter of the second noise control system.
    Type: Application
    Filed: June 30, 2021
    Publication date: January 6, 2022
    Applicants: ALPS ALPINE CO., LTD., A School Corporation Kansai University
    Inventors: Ryosuke Tachi, Yoshinobu Kajikawa
  • Publication number: 20220005451
    Abstract: A transfer function of a first variable filter is updated to output, from an output of a first seat microphone, a cancel sound that minimizes a level of a signal obtained by subtracting an output of an auxiliary filter that generates a correction signal for correcting a difference between positions of the first seat microphone and the first seat. In the ICC mode in which the uttered voice of the user in the first seat is output from a second seat speaker, a selector sets an uttered voice Dp output from the second seat speaker as an input to the first variable filter, and in the non-ICC mode, the selector sets an output sound of a second seat audio source output from the second seat speaker as an input to the first variable filter. The uttered voice Dp is generated by removing a component of the cancel sound from the output of the first seat microphone.
    Type: Application
    Filed: June 30, 2021
    Publication date: January 6, 2022
    Applicants: ALPS ALPINE CO., LTD., A School Corporation Kansai University
    Inventors: Ryosuke Tachi, Yoshinobu Kajikawa
  • Patent number: 11117102
    Abstract: The present invention provides a titanosilicate separation membrane which can also be used for separating a mixed gas containing a molecule having a relatively small size, has high durability in a high temperature environment, and has a high permeation rate and a high selectivity for a mixed gas containing water vapor. A titanosilicate separation membrane has a CHA-type titanosilicate crystal structure formed on a porous support, wherein aluminum is not substantially contained in the backbone of the titanosilicate crystal structure, and the titanosilicate crystal structure is constituted by silicon, oxygen, and titanium.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: September 14, 2021
    Assignees: Hitachi Zosen Corporation, The School Corporation Kansai University
    Inventors: Satoshi Imasaka, Sadao Araki, Hideki Yamamoto, Hiroyasu Ishii
  • Patent number: 10998488
    Abstract: A piezoelectric stack includes a porous resin sheet, and a surface coating layer disposed on an exterior surface of the porous resin sheet, the exterior surface including at least one of a front surface and a back surface of the porous resin sheet, the surface coating layer having a volume resistivity of not less than 1×1013 ?·cm, the porous resin sheet and the surface coating layer having different elastic moduli.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: May 4, 2021
    Assignees: Valqua, Ltd., A School Corporation Kansai University
    Inventors: Tetsuya Komeda, Yuki Yamanaka, Yoshiro Tajitsu
  • Publication number: 20200020315
    Abstract: Audio (noise source) is output as a cancellation sound through a variable filter and a first filter, and transmitted to the second filter. A subtractor subtracts an output of a second filter from an output of a microphone, and an adaptive algorithm execution unit updates a transfer function of the variable filter so that the subtracted result becomes zero (0). A transfer function A for the first filter is a transfer function which can cancel noise at a position of a user's ear by setting, as the cancellation sound, a sound obtained by applying the transfer function A to audio at the time of learning, and a transfer function B for the second filter is a transfer function which can eliminate, for the cancellation sound, a difference between a sound obtained by applying the transfer function B to audio and the output of the microphone.
    Type: Application
    Filed: July 11, 2019
    Publication date: January 16, 2020
    Applicants: ALPINE ELECTRONICS, INC., A School Corporation Kansai University
    Inventors: Ryosuke Tachi, Yoshinobu Kajikawa
  • Patent number: 10006860
    Abstract: Both a hologram and fluorescence are simultaneously captured in a state in which they can be reconstructed separately. A recording device (10) includes: a laser light source (LS1) which irradiates a subject (13) with object illumination light so that object light is generated; and an image capturing device (12) which captures (i) a hologram formed by interference between reference light and object light and (ii) an image of fluorescence, and the object illumination light further excites a fluorescent material (14) contained in the subject (13).
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: June 26, 2018
    Assignees: The School Corporation Kansai University, Inter-University Research Institute Corporation Research Organization of Information and Systems
    Inventors: Tatsuki Tahara, Imari Sato, Yuki Takahashi, Takeya Kanno
  • Patent number: 9953665
    Abstract: Systems and methods for applying electric fields during ultraviolet exposure of lubricant layers for hard disk media. One such method involves inserting a magnetic medium into a chamber, the magnetic medium including a lubricant on an outer surface thereof, and applying an electric field and an ultraviolet radiation to the lubricant within the chamber. Another such method involves inserting a magnetic medium into a chamber, depositing a lubricant on the medium within the chamber, and applying an electric field and an ultraviolet radiation to the lubricant within the chamber.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: April 24, 2018
    Assignees: Kansai University, WD Media, LLC
    Inventors: Yasuo Sakane, Hiroshi Tani
  • Patent number: 9225037
    Abstract: A flame-retardant lithium secondary battery is provided that has better battery performance and higher safety than conventional batteries. The lithium secondary battery uses a positive electrode that includes a positive electrode active material of the general formula (1) below, and a nonaqueous electrolytic solution in which an ionic liquid that contains bis(fluorosulfonyl)imide anions as an anionic component is used as the solvent, (1) LiNixMnyO4, wherein x and y are values that satisfy the relations x+y=2, and x:y=27.572.5 to 22.577.5.
    Type: Grant
    Filed: January 17, 2011
    Date of Patent: December 29, 2015
    Assignees: Dai-Ichi Kogyo Seiyaku Co., Ltd., A School Corporation Kansai University
    Inventors: Toshinori Sugimoto, Tetsuya Higashizaki, Eriko Ishiko, Michiyuki Kono, Masashi Ishikawa
  • Patent number: 8937171
    Abstract: The present invention provides a nucleic-acid-responsive gel which allows (i) a larger volumetric change through structural design, (ii) adjustment of its recognition ability to recognize a nucleic acid, (iii) improvement of sensitivity, and (iv) flexible design according to, e.g., a sequence of target DNA. The nucleic-acid-responsive gel includes a probe formed of two single-stranded nucleic acids which are hybridized with each other. The probe is fixed within a network structure of a polymer gel. The two single-stranded nucleic acids are bound reversibly with each other.
    Type: Grant
    Filed: August 6, 2007
    Date of Patent: January 20, 2015
    Assignees: Japan Science and Technology Agency, A School Corporation Kansai University
    Inventors: Takashi Miyata, Tadashi Uragami, Kaori Okawa