Patents by Inventor Hitoshi Takamura
Hitoshi Takamura 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).
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Patent number: 12151966Abstract: Provided is a film-covered transparent base plate having an excellent aesthetic appearance even during turn-off of a light source. A film-covered transparent base plate 1 includes a transparent base plate 2 and a light-absorbing film 3 provided on one principal surface 2a of the transparent base plate 2 and the light-absorbing film 3 includes a dielectric phase made of a material having a band gap of not less than 2.0 eV and not more than 2.7 eV and a metallic phase.Type: GrantFiled: June 29, 2020Date of Patent: November 26, 2024Assignees: NIPPON ELECTRIC GLASS CO., LTD., TOHOKU UNIVERSITYInventors: Yusuke Yamazaki, Masaaki Imura, Hitoshi Takamura, Akihiro Ishii, Mina Yamaguchi
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Publication number: 20220242782Abstract: Provided is a film-covered transparent base plate having an excellent aesthetic appearance even during turn-off of a light source. A film-covered transparent base plate 1 includes a transparent base plate 2 and a light-absorbing film 3 provided on one principal surface 2a of the transparent base plate 2 and the light-absorbing film 3 includes a dielectric phase made of a material having a band gap of not less than 2.0 eV and not more than 2.7 eV and a metallic phase.Type: ApplicationFiled: June 29, 2020Publication date: August 4, 2022Inventors: Yusuke YAMAZAKI, Masaaki IMURA, Hitoshi TAKAMURA, Akihiro ISHII, Mina YAMAGUCHI
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Publication number: 20210050622Abstract: Provided is a method for easily producing a thin-membrane solid electrolyte body. A molded body (11) of a first ceramic is prepared, and the molded body (11) is fired in a first temperature range to prepare a porous body (110). A thin membrane-shaped molded body (12) composed of a second ceramic containing a solid electrolyte is prepared on at least a part of a surface of the porous body (110). A dense body (120) is prepared by firing the thin membrane-shaped molded body (12). As a result, a solid electrolyte body (1) including the porous body (110) as a support and the dense body (120) of a thin membrane-shaped electrolyte integrally formed with at least a part of the surface of the porous body (110), is produced.Type: ApplicationFiled: February 7, 2019Publication date: February 18, 2021Inventors: Masaki YANAGAWA (deceased), Akira HATAKEYAMA, Hitoshi TAKAMURA
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Solid electrolyte, method for producing the same, and secondary battery comprising solid electrolyte
Patent number: 9722276Abstract: A solid electrolyte comprising: LiBH4; and an alkali metal compound represented by the following formula (1): MX??(1) (in the formula (1), M represents an alkali metal atom, and X represents one selected from the group consisting of halogen atoms, NR2 groups (each R represents a hydrogen atom or an alkyl group) and N2R groups (R represents a hydrogen atom or an alkyl group)).Type: GrantFiled: May 12, 2009Date of Patent: August 1, 2017Assignee: TOHOKU UNIVERSITYInventors: Hideki Maekawa, Hitoshi Takamura, Shinichi Orimo, Motoaki Matsuo, Yuko Nakamori, Mariko Ando, Yasuto Noda, Taiki Karahashi -
Patent number: 8771898Abstract: Described herein are solid oxide fuel cells and manufacturing methods thereof. In certain aspects, the solid oxide fuel cells described herein include a plurality of anodes and a plurality of cathodes in which the anodes and cathodes are alternately stacked on each other and have non-overlapping sections in which the anodes and cathodes do not overlap partially. In certain aspects, the plurality of anodes are electrically connected to a first electrode, and the plurality of cathodes are electrically connected to a second electrode. In certain aspects, a solid electrolyte can be included, for example, between the anode and the cathode. In certain aspects, partitioning sections are disposed between each of the cathodes and the first electrode and between each of the anodes and the second electrode.Type: GrantFiled: April 1, 2010Date of Patent: July 8, 2014Assignees: TDK Corporation, Tohoku UniversityInventors: Kei Sugiura, Atsushi Hitomi, Takeshi Urano, Hitoshi Takamura
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Publication number: 20120251871Abstract: An all-solid-state battery includes: a positive electrode having a positive electrode current collector and a positive electrode layer on the positive electrode current collector; a negative electrode having a negative electrode current collector and a negative electrode layer on the negative electrode current collector; and an electrolyte between the positive and negative electrodes. The electrolyte is made of a first solid-state electrolyte having lithium ionic conductivity. The positive electrode layer includes a base portion and an active material portion. The base portion is made of a second solid-state electrolyte having lithium ionic conductivity in a continuous phase. The active material portion is dispersed in the base portion, and includes a positive electrode active material. The first and second solid-state electrolytes are lithium ionic conductive material having a hydride solid-state electrolyte, respectively.Type: ApplicationFiled: March 28, 2012Publication date: October 4, 2012Applicants: Tohoku University, DENSO CORPORATIONInventors: Gen Suzuki, Kenichirou Kami, Hitoshi Takamura, Shinichi Orimo, Hideki Maekawa, Tamako Maekawa
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SOLID ELECTROLYTE, METHOD FOR PRODUCING THE SAME, AND SECONDARY BATTERY COMPRISING SOLID ELECTROLYTE
Publication number: 20110117440Abstract: A solid electrolyte comprising: LiBH4; and an alkali metal compound represented by the following formula (1): MX??(1) (in the formula (1), M represents an alkali metal atom, and X represents one selected from the group consisting of halogen atoms, NR2 groups (each R represents a hydrogen atom or an alkyl group) and N2R groups (R represents a hydrogen atom or an alkyl group)).Type: ApplicationFiled: May 12, 2009Publication date: May 19, 2011Applicant: TOHOKU UNIVERSITYInventors: Hideki Maekawa, Hitoshi Takamura, Shinichi Orimo, Motoaki Matsuo, Yuko Nakamori, Mariko Ando, Yasuto Noda, Taiki Karahashi -
Patent number: 7922780Abstract: To provide a method and an apparatus for reforming a hydrocarbon with a prolonged life of an oxygen-permeable membrane and a high recovery rate. The oxygen-permeable membrane absorbs the free energy change, ?G, of a partial oxidation reforming reaction and then converts it into work for oxygen isolation and Joule heat, Q. Here, as seen in Table 1 and FIG. 1, ?G of the partial oxidation reforming reaction is approximately ten times larger than ?H, and further increases as the temperature increases. The generated Joule heat, Q, has to be removed at a high efficiency, and this removal process is achieved by returning a portion of the Joule heat to the system as the entropy change, T?S, of the partial oxidation reaction itself and by steam reforming using the total energy change, ?H.Type: GrantFiled: October 16, 2006Date of Patent: April 12, 2011Assignees: Japan Science and Technology Agency, TDK CorporationInventors: Hitoshi Takamura, Masuo Okada, Masayuki Ogawa, Tomoyuki Saito
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Publication number: 20110027693Abstract: A solid oxide fuel cell includes plural anodes and plural cathodes, which are alternately stacked on each other and have non-overlapping sections where the anodes and the cathodes do not overlap partially. The plural anodes are electrically connected to the first electrode, and the plural cathodes are electrically connected to the second electrode. At least between the anode and the cathode, the solid electrolyte is installed. Partitioning sections are disposed between each of the cathodes and the first electrode, and between each of the anodes and the second electrode.Type: ApplicationFiled: April 1, 2010Publication date: February 3, 2011Applicants: TDK CORPORATION, TOHOKU UNIVERSITYInventors: Kei SUGIURA, Atsushi HITOMI, Takeshi URANO, Hitoshi TAKAMURA
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Patent number: 7770658Abstract: An object is to improve accuracy of tightening torque and to shorten time necessary for fastening a screw in an impact type screw fastening device that uses an electric motor as a rotation driving source. A control method for the impact type screw fastening device that uses an electric motor as a rotation driving source includes the steps of driving the motor to rotate by supplying current to the motor intermittently so that torque exerted on a load by rotation of the motor becomes like pulses on the time axis, and controlling the current of every time of each pulse so that an increment of every time of each pulse of the torque after the torque reaches a target approach torque TQN that is a first set value becomes smaller than that before it reaches the target approach torque TQN.Type: GrantFiled: May 10, 2006Date of Patent: August 10, 2010Assignees: Estic Corporation, Honda Motor Co., Ltd.Inventors: Takaya Ito, Yoshitsugu Shibata, Hitoshi Takamura
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Publication number: 20100178238Abstract: [Objects] To provide a method and an apparatus for reforming a hydrocarbon with a prolonged life of an oxygen-permeable membrane and a high recovery rate. [Solutions] The oxygen-permeable membrane absorbs the free energy change, ?G, of a partial oxidation reforming reaction and then converts it into work for oxygen isolation and Joule heat, Q. Here, as seen in Table 1 and FIG. 1, ?G of the partial oxidation reforming reaction is approximately ten times larger than ?H, and further increases as the temperature increases. The generated Joule heat, Q, has to be removed at a high efficiency, and this removal process is achieved by returning a portion of the Joule heat to the system as the entropy change, T?S, of the partial oxidation reaction itself and by steam reforming using the total energy change, ?H.Type: ApplicationFiled: October 16, 2006Publication date: July 15, 2010Inventors: Hitoshi Takamura, Masuo Okada, Masayuki Ogawa, Tomoyuki Saito
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Publication number: 20090169953Abstract: An electrochemical cell including a proton conductor as an electrolyte with superior stability, particularly against gases containing carbon dioxide, is provided. A proton-conductive electrolyte 21 used for an electrochemical cell 20B was a ceramic having the composition SrZr0.5Ce0.4Y0.1O3??. As the cathode, a thin film of a proton conductor having the composition SrCe0.95Yb0.05O3??was provided on the electrolyte 21 as an intermediate layer 22, and a porous platinum electrode 23c was provided thereon. The anode used was a palladium electrode 23a. A cell 20A including no intermediate layer 22 had a high overvoltage approaching 600 mV at a low current density, namely, 70 mA/cm2. In contrast, the cell 20B, including the intermediate layer 21, had a low overvoltage, namely, about 170 mV, at a current density of 680 mA/cm2.Type: ApplicationFiled: November 21, 2006Publication date: July 2, 2009Inventors: Hiroshige Matsumoto, Hitoshi Takamura, Tatsumi Ishihara
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Patent number: 7479242Abstract: It is a composite-type mixed oxygen ion and electronic conductor, in which an oxygen ion conductive phase consists of gadolinium-doped cerium oxide (GDC), an electronic conductive phase consists of spinel-type ferrite (CFO), the particle diameters of both phases are 1 ?m or less, respectively, both phases are uniformly mixed mutually, and both phases form respective conductive networks. Both phases have low solid solubility mutually, chemical reactions are not easily caused between both phases, and even if chemical reactions are caused between both phases, different phase to disturb mixed conductivity is not formed. And it has high oxygen permeability, and does not easily cause aged deterioration.Type: GrantFiled: April 13, 2007Date of Patent: January 20, 2009Assignee: Japan Science and Technology AgencyInventors: Hitoshi Takamura, Masuo Okada
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Publication number: 20090014192Abstract: An object is to improve accuracy of tightening torque and to shorten time necessary for fastening a screw in an impact type screw fastening device that uses an electric motor as a rotation driving source. A control method for the impact type screw fastening device that uses an electric motor as a rotation driving source includes the steps of driving the motor to rotate by supplying current to the motor intermittently so that torque exerted on a load by rotation of the motor becomes like pulses on the time axis, and controlling the current of every time of each pulse so that an increment of every time of each pulse of the torque after the torque reaches a target approach torque TQN that is a first set value becomes smaller than that before it reaches the target approach torque TQN.Type: ApplicationFiled: May 10, 2006Publication date: January 15, 2009Applicants: ESTIC CORPORATION, HONDA MOTOR CO., LTD.Inventors: Takaya Ito, Yoshitsugu Shibata, Hitoshi Takamura
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Publication number: 20070252114Abstract: It is a composite-type mixed oxygen ion and electronic conductor, in which an oxygen ion conductive phase consists of gadolinium-doped cerium oxide (GDC), an electronic conductive phase consists of spinel-type ferrite (CFO), the particle diameters of both phases are 1 ?m or less, respectively, both phases are uniformly mixed mutually, and both phases form respective conductive networks. Both phases have low solid solubility mutually, chemical reactions are not easily caused between both phases, and even if chemical reactions are caused between both phases, different phase to disturb mixed conductivity is not formed. And it has high oxygen permeability, and does not easily cause aged deterioration.Type: ApplicationFiled: April 13, 2007Publication date: November 1, 2007Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCYInventors: Hitoshi Takamura, Masuo Okada
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Patent number: 7223358Abstract: It is a composite-type mixed oxygen ion and electronic conductor, in which an oxygen ion conductive phase consists of gadolinium-doped cerium oxide (GDC), an electronic conductive phase consists of spinel-type ferrite (CFO), the particle diameters of both phases are 1 ?m or less, respectively, both phases are uniformly mixed mutually, and both phases form respective conductive networks. Both phases have low solid solubility mutually, chemical reactions are not easily caused between both phases, and even if chemical reactions are caused between both phases, different phase to disturb mixed conductivity is not formed. And it has high oxygen permeability, and does not easily cause aged deterioration.Type: GrantFiled: April 8, 2003Date of Patent: May 29, 2007Assignee: Japan Science and Technology AgencyInventors: Hitoshi Takamura, Masuo Okada
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Publication number: 20070080058Abstract: To provide low-overpotential electrodes for an electrochemical cell including a proton-conductive electrolyte and an electrochemical cell including the electrodes. The following reaction occurs at the interface between a gas phase and an anode 3: H2?2H++2e? At this time, the resultant protons (H+) and electrons (e?) exist in the anode 3. The subsequent electrode reaction is completed after the protons travel to an electrolyte 2 and the electrons travel to a lead 5. The reverse reaction occurs at a cathode 4 to generate hydrogen gas.Type: ApplicationFiled: November 17, 2004Publication date: April 12, 2007Applicant: Japan Science and Technology AgencyInventors: Hiroshige Matsumoto, Hitoshi Takamura, Junichiro Mizusaki, Tatsuya Kawada, Keiji Yashiro
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Publication number: 20070006950Abstract: A technology for refining the crystal grains of alloy whose main constituents are elements exhibiting weak affinity with hydrogen. With respect to the alloy whose main constituents are elements exhibiting weak affinity with hydrogen in which an element exhibiting strong affinity with hydrogen is contained, resulting from attaining of presence of an element exhibiting strong affinity with hydrogen in an alloy whose main constituents are elements exhibiting weak affinity with hydrogen, any crystal grains of the alloy can be super-atomized by subjecting the alloy to heat treatment involving hydrogen absorption and release, thereby realizing super-high strength thereof. Thus, the properties of the alloy can be improved and enhanced.Type: ApplicationFiled: September 15, 2006Publication date: January 11, 2007Inventors: Masuo Okada, Hitoshi Takamura, Atsunori Kamegawa, Junya Takahashi, Takao Funayama
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Publication number: 20050142053Abstract: It is a composite-type mixed oxygen ion and electronic conductor, in which an oxygen ion conductive phase consists of gadolinium-doped cerium oxide (GDC), an electronic conductive phase consists of spinel-type ferrite (CFO), the particle diameters of both phases are 1 ?m or less, respectively, both phases are uniformly mixed mutually, and both phases form respective conductive networks. Both phases have low solid solubility mutually, chemical reactions are not easily caused between both phases, and even if chemical reactions are caused between both phases, different phase to disturb mixed conductivity is not formed. And it has high oxygen permeability, and does not easily cause aged deterioration.Type: ApplicationFiled: April 8, 2003Publication date: June 30, 2005Inventors: Hitoshi Takamura, Masuo Okada