Patents by Inventor Takashi Ebata

Takashi Ebata 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).

  • Patent number: 11131588
    Abstract: An energy converter is formed by bonding a solid soft magnetic material and a solid magnetostrictive material. A vibration power generator is configured to generate power by means of the inverse magnetostriction effect of the magnetostrictive material produced by the vibration of a vibration unit configured using the energy converter. A force sensor device includes a force detection unit that detects magnetization change resulting from the inverse magnetostriction effect of the magnetostrictive material produced when a sensor unit configured using the energy converter deforms, and determines force acting on the sensor unit on the basis of the detected magnetization change. An actuator is configured to vibrate the vibration unit configured using the energy converter by means of the magnetostriction effect of the magnetostrictive material.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: September 28, 2021
    Assignees: TOHOKU UNIVERSITY, TOHOKU STEEL CO., LTD.
    Inventors: Fumio Narita, Ryuichi Onodera, Tsuyoki Tayama, Masahito Watanabe, Daiki Chiba, Tatsuro Sasa, Takenobu Sato, Takashi Ebata
  • Publication number: 20210172812
    Abstract: An energy converter is formed by bonding a solid soft magnetic material and a solid magnetostrictive material. A vibration power generator is configured to generate power by means of the inverse magnetostriction effect of the magnetostrictive material produced by the vibration of a vibration unit configured using the energy converter. A force sensor device includes a force detection unit that detects magnetization change resulting from the inverse magnetostriction effect of the magnetostrictive material produced when a sensor unit configured using the energy converter deforms, and determines force acting on the sensor unit on the basis of the detected magnetization change. An actuator is configured to vibrate the vibration unit configured using the energy converter by means of the magnetostriction effect of the magnetostrictive material.
    Type: Application
    Filed: April 20, 2018
    Publication date: June 10, 2021
    Applicants: TOHOKU UNIVERSITY, TOHOKU STEEL CO., LTD.
    Inventors: Fumio NARITA, Ryuichi ONODERA, Tsuyoki TAYAMA, Masahito WATANABE, Daiki CHIBA, Tatsuro SASA, Takenobu SATO, Takashi EBATA
  • Publication number: 20190356246
    Abstract: A vibration powered generator capable of vibrating at a plurality of resonance frequencies to generate electric power with a simpler structure is provided. A vibration powered generator has an elongated magnetostrictive material having one end attached to a vibrating body, in which the magnetostrictive material vibrates due to vibration of the vibrating body whereby the vibration powered generator generates electric power with the aid of an inverse magnetostrictive effect of the magnetostrictive material. A cross-sectional shape vertical to a longitudinal direction of the magnetostrictive material has an asymmetrical shape with respect to a straight line extending along a vibration direction thereof due to vibration of the vibrating body.
    Type: Application
    Filed: December 20, 2017
    Publication date: November 21, 2019
    Applicant: TOHOKU STEEL Co., Ltd.
    Inventors: Ryuichi ONODERA, Tsuyoki TAYAMA, Takenobu SATO, Takashi EBATA, Fumio NARITA
  • Publication number: 20190250121
    Abstract: This disclosure provides an ion-selective electrode enhanced in simultaneous repeatability, a test specimen using the ion-selective electrode, and an analyzer using the test specimen. The ion-selective electrode is provided with: a pair of internal electrodes; and an ion-selective membrane which is provided at respective positions corresponding to the internal electrodes and which includes a binder resin, an ionophore, and a dielectric material having a dielectric constant of 10 or more.
    Type: Application
    Filed: February 8, 2019
    Publication date: August 15, 2019
    Applicant: ARKRAY, Inc.
    Inventor: Takashi Ebata
  • Patent number: 9850355
    Abstract: The present invention is a laminate film comprising a plastic film, and an inorganic layer and an organic layer containing a 1,3,5-triazine derivative laid on at least one surface of the plastic film, wherein the 1,3,5-triazine derivative has a sulfur-containing group as a substituent on at least one of 2, 4 and 6 positions.
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: December 26, 2017
    Assignee: Toyobo Co., Ltd.
    Inventors: Takashi Ebata, Kiyoshi Iseki
  • Patent number: 9657388
    Abstract: Provided is a gas barrier film having superior gas barrier properties even when an organic gas barrier layer is provided to the surface of a plastic film. The gas barrier film is provided with an organic gas barrier layer containing a 1,3,5-triazine derivative at least at one surface of the plastic film, and is characterized by the 1,3,5-triazine derivative having as a substituent group a group containing sulfur at position 2, 4, or 6.
    Type: Grant
    Filed: February 5, 2014
    Date of Patent: May 23, 2017
    Assignee: Toyobo Co., Ltd.
    Inventors: Takashi Ebata, Kiyoshi Iseki
  • Publication number: 20160300998
    Abstract: A method for producing a magnetostrictive material and a method for increasing the value of magnetostriction can increase the value of magnetostriction of magnetostrictive materials used, for example, in vibration power generation and force sensors utilizing inverse magnetostriction phenomenon. A magnetostrictive material having a value of magnetostriction of 100 ppm or more is produced by melting and casting an alloy material in the composition of range of 67-87 wt % Co with the balance consisting of Fe and unavoidable impurities and then performing hot forging. Furthermore, a magnetostrictive material having a value of magnetostriction of 130 ppm or more can be produced by performing cold rolling after the hot forging. Heat treatment at 400-1000° C. may also be performed after hot working or cold working.
    Type: Application
    Filed: December 5, 2014
    Publication date: October 13, 2016
    Applicants: HIROSAKI UNIVERSITY, TOHOKU UNIVERSITY, TOHOKU STEEL Co., Ltd.
    Inventors: Yasufumi FURUYA, Shinichi YAMAURA, Takashi NAKAJIMA, Takashi EBATA, Takenobu SATO
  • Publication number: 20150376357
    Abstract: The present invention is a laminate film comprising a plastic film, and an inorganic layer and an organic layer containing a 1,3,5-triazine derivative laid on at least one surface of the plastic film, wherein the 1,3,5-triazine derivative has a sulfur-containing group as a substituent on at least one of 2, 4 and 6 positions.
    Type: Application
    Filed: January 31, 2014
    Publication date: December 31, 2015
    Inventors: Takashi EBATA, Kiyoshi ISEKI
  • Publication number: 20150376769
    Abstract: Provided is a gas barrier film having superior gas barrier properties even when an organic gas barrier layer is provided to the surface of a plastic film. The gas barrier film is provided with an organic gas barrier layer containing a 1,3,5-triazine derivative at least at one surface of the plastic film, and is characterized by the 1,3,5-triazine derivative having as a substituent group a group containing sulfur at position 2, 4, or 6.
    Type: Application
    Filed: February 5, 2014
    Publication date: December 31, 2015
    Inventors: Takashi EBATA, Kiyoshi ISEKI
  • Patent number: 7381369
    Abstract: Provided is free cutting alloy excellent in machinability, preserving various characteristics as alloy. The free cutting alloy contains: one or more of Ti and Zr as a metal element component; and C being an indispensable element as a bonding component with the metal element component, wherein a (Ti,Zr) based compound including one or more of S, Se and Te is formed in a matrix metal phase. The free cutting alloy is more excellent in machinability, preserving various characteristics as alloy at similar levels to a conventional case. The effect is especially conspicuous, for example, when a compound expressed in a chemical form of (Ti,Zr)4C2(S,Se,Te)2 as the (Ti,Zr) based compound is formed at least in a dispersed state in the alloy structure.
    Type: Grant
    Filed: May 18, 2004
    Date of Patent: June 3, 2008
    Assignees: Daido Tokushuko Kabushiki Kaisha, Tohoku Tokushuko Kabushiki Kaisha, Japan Industrial Technology Association, Tohoku Technoarch Co., Ltd.
    Inventors: Kiyohito Ishida, Katsunari Oikawa, Takashi Ebata, Tetsuya Shimizu, Michio Okabe
  • Publication number: 20080124240
    Abstract: Provided is free cutting alloy excellent in machinability, preserving various characteristics as alloy. The free cutting alloy contains: one or more of Ti and Zr as a metal element component; and C being an indispensable element as a bonding component with the metal element component, wherein a (Ti,Zr) based compound including one or more of S, Se and Te is formed in a matrix metal phase. The free cutting alloy is more excellent in machinability, preserving various characteristics as alloy at similar levels to a conventional case. The effect is especially conspicuous, for example, when a compound expressed in a chemical form of (Ti,Zr)4C2(S,Se,Te)2 as the (Ti,Zr) based compound is formed at least in a dispersed state in the alloy structure.
    Type: Application
    Filed: October 19, 2007
    Publication date: May 29, 2008
    Applicants: Kiyohito ISHIDA, Katsunari OIKAWA, Daido Steel Co., Ltd., Tohoku Steel Co., Ltd., Japan Industrial Technology Association, Tohoku Techno Arch Co., Ltd.
    Inventors: Kiyohito Ishida, Katsunari Oikawa, Takashi Ebata, Takayuki Inoguchi, Tetsuya Shimizu, Michio Okabe
  • Patent number: 7297214
    Abstract: Provided is free cutting alloy excellent in machinability, preserving various characteristics as alloy. The free cutting alloy contains: one or more of Ti and Zr as a metal element component; and C being an indispensable element as a bonding component with the metal element component, wherein a (Ti,Zr) based compound including one or more of S, Se and Te is formed in a matrix metal phase. The free cutting alloy is more excellent in machinability, preserving various characteristics as alloy at similar levels to a conventional case. The effect is especially conspicuous, for example, when a compound expressed in a chemical form of (Ti,Zr)4C2(S,Se,Te)2 as the (Ti,Zr) based compound is formed at least in a dispersed state in the alloy structure.
    Type: Grant
    Filed: May 18, 2004
    Date of Patent: November 20, 2007
    Assignees: Daido Tokushuko Kabushiki Kaisha, Tohoku Tokushuko Kabushiki Kaisha, Japan Industrial Technology Association, Tohoku Technoarch Co., Ltd.
    Inventors: Kiyohito Ishida, Katsunari Oikawa, Takashi Ebata, Takayuki Inoguchi, Tetsuya Shimizu, Michio Okabe
  • Publication number: 20050011589
    Abstract: Provided is free cutting alloy excellent in machinability, preserving various characteristics as alloy. The free cutting alloy contains: one or more of Ti and Zr as a metal element component; and C being an indispensable element as a bonding component with the metal element component, wherein a (Ti,Zr) based compound including one or more of S, Se and Te is formed in a matrix metal phase. The free cutting alloy is more excellent in machinability, preserving various characteristics as alloy at similar levels to a conventional case. The effect is especially conspicuous, for example, when a compound expressed in a chemical form of (Ti,Zr)4C2(S,Se,Te)2 as the (Ti,Zr) based compound is formed at least in a dispersed state in the alloy structure.
    Type: Application
    Filed: May 18, 2004
    Publication date: January 20, 2005
    Applicants: Kiyohito Ishida, Katsunari Oikawa, Daido Tokushuko Kabushiki Kaisha, Tohoku Tokushuko Kabushiki Kaisha, Japan Industrial Technology Association, Tohoku Technoarch Co., Ltd.
    Inventors: Kiyohito Ishida, Katsunari Oikawa, Takashi Ebata, Takayuki Inoguchi, Tetsuya Shimizu, Michio Okabe
  • Publication number: 20050000602
    Abstract: Provided is free cutting alloy excellent in machinability, preserving various characteristics as alloy. The free cutting alloy contains: one or more of Ti and Zr as a metal element component; and C being an indispensable element as a bonding component with the metal element component, wherein a (Ti,Zr) based compound including one or more of S, Se and Te is formed in a matrix metal phase. The free cutting alloy is more excellent in machinability, preserving various characteristics as alloy at similar levels to a conventional case. The effect is especially conspicuous, for example, when a compound expressed in a chemical form of (Ti,Zr)4C2(S,Se,Te)2 as the (Ti,Zr) based compound is formed at least in a dispersed state in the alloy structure.
    Type: Application
    Filed: May 18, 2004
    Publication date: January 6, 2005
    Applicants: Kiyohito ISHIDA, Katsunari OIKAWA, Daido Tokushuko Kabushiki Kaisha, Tohoku Tokushuko Kabushiki Kaisha, Japan Industrial Technology Association, Tohoku Technoarch Co., Ltd.
    Inventors: Kiyohito Ishida, Katsunari Oikawa, Takashi Ebata, Tetsuya Shimizu, Michio Okabe
  • Patent number: 6752883
    Abstract: A free-cutting Ni-base heat-resistant alloy excellent in the high-temperature strength and corrosion resistance was proposed. The alloy contains Ni as a major component, 0.01 to 0.3 wt % of C and 14 to 35 wt % of Cr, and further contains at least one element selected from Ti, Zr and Hf in a total amount of 0.1 to 6 wt %, and S in an amount of 0.015 to 0.5 wt %. The alloy has dispersed in the matrix thereof a machinability improving compound phase, where such phase contains any one of Ti, Zr and Hf as a major constituent of the metal elements, essentially contains C and either S or Se as a binding component for such metal elements. The alloy also satisfies the relations of WTi+0.53WZr+0.27WHf>2WC+0.75WS and WC>0.37WS, where WTi represents Ti content (wt %), WZr represents Zr content (wt %), WHf represents Hf content (wt %), WC represents C content (wt %) and WS represents S content (wt %).
    Type: Grant
    Filed: May 31, 2002
    Date of Patent: June 22, 2004
    Assignees: Dokuritsu Gyousei Houjin Sangyo Gijutsu Sougo Kenkyusho, Daido Tokushuko Kabushiki Kaisha, Tohoku Tokushuko Kabushiki Kaisha
    Inventors: Kiyohito Ishida, Katsunari Oikawa, Shigeki Ueta, Toshiharu Noda, Takashi Ebata
  • Patent number: 6667005
    Abstract: Disclosed is a corrosion resistant steel having good machinability with sufficient corrosion resistance in the ordinary indoor circumstances and suitable for manufacturing shafts of various small motors and OA-machines. The steel comprises, by weight %, C: 0.005-0.200%, P: up to 0.05%, Cu: up to 2.0%, Ni: up to 2.0%, Cr: 2.0-9.0%, one or both of Ti and Zr: in such an amount as [Ti %]+0.52[Zr %]: 0.03-1.20%, one or both of S: 0.01-0.50% and Se: 0.01-0.40%, N: up to 0.050% and O: up to 0.030%, the balance being Fe and inevitable impurities. The steel is characterized by the inclusion therein, which are Ti-based, Zr-based or Ti-Zr-based compound or compounds containing C and one or both of S and Se.
    Type: Grant
    Filed: May 15, 2002
    Date of Patent: December 23, 2003
    Assignees: Dokuritsu Gyousei Houjin Sangyo Gijutsu Sougo Kenkyusho, Daido Steel Co., LTD
    Inventors: Kiyohito Ishida, Katsunari Oikawa, Takashi Ebata, Koichi Ishikawa, Toshiharu Noda, Tetsuya Shimizu
  • Publication number: 20030192626
    Abstract: A precipitation-hardened soft magnetic ferritic stainless steel comprises C: not more than 0.2 mass %, Si: 0.01-3.0 mass %, Mn: not more than 0.5 mass %, S: not more than 0.3 mass %, Cr: 12.0-19.0 mass %, Ni: 1.0-4.0 mass % and Al: 0.2-4.0 mass % and further contains at least one of Ti: less than 0.5 mass % and Zr: less than 0.3 mass % and the remainder being inevitable impurities and Fe, and has substantially a microstructure of a ferrite phase after a solution treatment and an aging treatment.
    Type: Application
    Filed: August 28, 2002
    Publication date: October 16, 2003
    Applicant: Tohoku Steel Co., Ltd.
    Inventors: Tsunemi Takiguchi, Takashi Ebata
  • Publication number: 20030170138
    Abstract: Provided is free cutting alloy excellent in machinability, preserving various characteristics as alloy. The free cutting alloy contains: one or more of Ti and Zr as a metal element component; and C being an indispensable element as a bonding component with the metal element component, wherein a (Ti, Zr) based compound including one or more of S, Se and Te is formed in a matrix metal phase. The free cutting alloy is more excellent in machinability, preserving various characteristics as alloy at similar levels to a conventional case. The effect is especially conspicuous, for example, when a compound expressed in a chemical form of (Ti, Zr)4C2(S, Se, Te)2 as the (Ti, Zr) based compound is formed at least in a dispersed state in the alloy structure.
    Type: Application
    Filed: September 13, 2002
    Publication date: September 11, 2003
    Applicant: Kiyohito ISHIDA
    Inventors: Kiyohito Ishida, Katsunari Oikawa, Takashi Ebata, Takayuki Inoguchi, Tetsuya Shimizu, Michio Okabe
  • Publication number: 20030063995
    Abstract: Disclosed is a corrosion resistant steel having good machinability with sufficient corrosion resistance in the ordinary indoor circumstances and suitable for manufacturing shafts of various small motors and OA-machines. The steel comprises, by weight %, C: 0.005-0.200%, P: up to 0.05%, Cu: up to 2.0%, Ni: up to 2.0%, Cr: 2.0-9.0%, one or both of Ti and Zr: in such an amount as [Ti%]+0.52[Zr%]: 0.03-1.20%, one or both of S: 0.01-0.50% and Se: 0.01-0.40%, N: up to 0.050% and O: up to 0.030%, the balance being Fe and inevitable impurities. The steel is characterized by the inclusion therein, which are Ti-based, Zr-based or Ti—Zr-based compound or compounds containing C and one or both of S and Se.
    Type: Application
    Filed: May 15, 2002
    Publication date: April 3, 2003
    Inventors: Kiyohito Ishida, Katsunari Oikawa, Takashi Ebata, Koichi Ishikawa, Toshiharu Noda, Tetsuya Shimizu
  • Publication number: 20020195175
    Abstract: A free-cutting Ni-base heat-resistant alloy excellent in the high-temperature strength and corrosion resistance was proposed. The alloy contains Ni as a major component, 0.01 to 0.3 wt % of C and 14 to 35 wt % of Cr, and further contains at least one element selected from Ti, Zr and Hf in a total amount of 0.1 to 6 wt %, and S in an amount of 0.015 to 0.5 wt %. The alloy has dispersed in the matrix thereof a machinability improving compound phase, where such phase contains any one of Ti, Zr and Hf as a major constituent of the metal elements, essentially contains C and either S or Se as a binding component for such metal elements. The alloy also satisfies the relations of WTi+0.53WZr+0.27WHf>2WC+0.75WS and WC>0.37WS, where WTi represents Ti content (wt %), WZr represents Zr content (wt %), WHf represents Hf content (wt %), WC represents C content (wt %) and WS represents S content (wt %).
    Type: Application
    Filed: May 31, 2002
    Publication date: December 26, 2002
    Inventors: Kiyohito Ishida, Katsunari Oikawa, Shigeki Ueta, Toshiharu Noda, Takashi Ebata