Patents by Inventor Takeshi Tachibana

Takeshi Tachibana 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).

  • Publication number: 20200398382
    Abstract: The present invention provides a solder paste that suppresses generation of voids and has excellent reliability. A solder paste contains Sn-based powder, SnSb-based alloy powder with Sn and 10 mass % or more of Sb, and flux, wherein a liquidus temperature of the SnSb-based alloy powder is higher than a liquidus temperature of the Sn-based powder, and a content ratio of the Sn-based powder and the SnSb-based alloy powder is 75:25 to 95:5. Preferably, the content ratio of the Sn-based powder to the SnSb-based alloy powder is 80:20 to 90:10.
    Type: Application
    Filed: April 9, 2019
    Publication date: December 24, 2020
    Applicant: SENJU METAL INDUSTRY CO., LTD.
    Inventors: Takeshi SAKAMOTO, Yoshie TACHIBANA, Shunsuke KOGA
  • Patent number: 10662449
    Abstract: This method for producing a compound uses a continuous tank reactor which is provided with two or more reaction tanks for producing the compound and with a reaction liquid feeding pipe that feeds a reaction liquid from an upstream reaction tank to a downstream reaction tank, said method being characterized in that the Reynold's number of the reaction liquid that flows in the reaction liquid feeding pipe is configured to be 1800-22000. Furthermore, this compound production system is used in said method for producing a compound, and is formed by housing at least one of the reaction tanks in a portable container.
    Type: Grant
    Filed: July 3, 2015
    Date of Patent: May 26, 2020
    Assignees: Mitsubishi Chemical Corporation, Mitsubishi Chemical Engineering Corporation
    Inventors: Makoto Kano, Takamitsu Kariya, Hiroyasu Banba, Tomohiko Mawatari, Takeshi Kato, Tsutomu Hirachi, Keizo Tachibana, Masahiro Kamide, Megumu Morimoto
  • Publication number: 20190339332
    Abstract: A battery pack includes a secondary battery, a state of charge calculator, an integrated current amount calculator, a differential state of charge calculator, a full charge capacity calculator, and a charging-and-discharging control section. The differential state of charge calculator calculates a differential state of charge between a first state of charge at a first detection timing and a second state of charge at a second detection timing. The integrated current amount calculator calculates an integrated amount of a current flowing to the secondary battery in a subject period from the first detection timing to the second detection timing. The full charge capacity calculator calculates a full charge capacity of the secondary battery based on the differential state of charge and the integrated current amount. The charging-and-discharging control section is configured to restrict one of the charging and the discharging of the secondary battery during the subject period.
    Type: Application
    Filed: July 15, 2019
    Publication date: November 7, 2019
    Applicant: DENSO CORPORATION
    Inventors: Yuki TACHIBANA, Yamato UTSUNOMIYA, Takeshi SADA
  • Patent number: 8723508
    Abstract: A method for analyzing the DC superposition characteristics of an inductance device using an electromagnetic field simulator, comprising a first step of determining an initial magnetization curve from initial magnetization to saturation magnetization, and pluralities of minor loops at different operating points, on a toroidal core made of the same magnetic material as that of the inductance device, and obtaining point-list data showing the relation between magnetic flux density or magnetic field strength and incremental permeability from the incremental permeability at each operating point; a second step of determining an operating point at a predetermined direct current on each element obtained by mesh-dividing an analysis model of the inductance device by an electromagnetic field simulator based on the initial magnetization curve of the core, allocating the incremental permeability to the operating point from the point-list data, and integrating the inductance of each element obtained from the incremental p
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: May 13, 2014
    Assignee: Hitachi Metals, Ltd.
    Inventors: Takeshi Tachibana, Satoru Tanaka, Keiko Kikuchi
  • Patent number: 8436708
    Abstract: A multilayer inductor comprising a coil embedded in a magnetic portion, and a magnetic gap formed by a non-magnetic portion in part of a magnetic path, the magnetic portion being made of Ni ferrite, whose relative temperature coefficient ??ir of initial permeability at a frequency of 1 MHz is more than +10 ppm/° C. and +40 ppm/° C. or less between ?40° C. and +80° C., the non-magnetic portion being made of Zn ferrite containing more Zn than in the magnetic portion and having a Curie temperature Tc of ?50° C. or lower, and the Zn content changing continuously in boundary regions between the non-magnetic portion and the magnetic portion, whereby the thickness of the magnetic gap changes with the temperature.
    Type: Grant
    Filed: December 25, 2008
    Date of Patent: May 7, 2013
    Assignee: Hitachi Metals, Ltd.
    Inventors: Takeshi Tachibana, Satoru Tanaka
  • Patent number: 8237529
    Abstract: Low-loss ferrite comprising 100% by mass of main components comprising 47.1-49.3% by mol of Fe2O3, 20-26% by mol of ZnO, and 6-14% by mol of CuO, the balance being NiO, and 0.1-2% by mass (as SnO2) of Sn and 0.05-2% by mass (as Mn3O4) of Mn, and having an average crystal grain size of 0.5-3 ?m.
    Type: Grant
    Filed: February 6, 2008
    Date of Patent: August 7, 2012
    Assignee: Hitachi Metals, Ltd.
    Inventors: Satoru Tanaka, Takeshi Tachibana
  • Patent number: 8204651
    Abstract: According to the present invention, a power supply control device for an electric power steering device used for a power supply system comprises a main battery 40 connected to the electric power steering device via a first power supply line and a sub-battery 50 connected to the electric power steering device via a second power supply line, wherein when detecting the state of the sub-battery, said power supply control device restricts or disconnects power supply from the main battery to the electric power steering device while it permits power supply from the sub-battery to the electric power steering device, characterized in that said power supply control device prevents the detection of the state of the second battery if a vehicle speed is higher than a predetermined reference value.
    Type: Grant
    Filed: November 16, 2006
    Date of Patent: June 19, 2012
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Takeshi Tachibana, Koji Ito, Toshinori Esaka, Hidenori Matsuto
  • Patent number: 8164410
    Abstract: A low-loss ferrite comprising as main components 46.5-49.5% by mol of Fe2O3, 17-26% by mol of ZnO, 4-12% by mol of CuO, and 0.2% or more and less than 1.2% by mol of CoO, the balance being NiO, and 0.03-1.4% by mass (as SnO2) of Sn based on 100% by mass of the main components, and having an average crystal grain size of 0.7-2.5 ?m, and an electronic device obtained by integrally sintering pluralities of layers of this low-loss ferrite and coil-shaped electrodes formed in the laminate.
    Type: Grant
    Filed: April 16, 2008
    Date of Patent: April 24, 2012
    Assignee: Hitachi Metals, Ltd.
    Inventors: Satoru Tanaka, Takeshi Tachibana
  • Patent number: 8067853
    Abstract: The power supply system includes a generator, a transformer circuit, and a battery. The generator generates electric power of a first voltage. The transformer circuit boosts the electric power of the first voltage to a second voltage. The battery is connected, via the transformer circuit, to the generator and stores electric power of the second voltage obtained by the boosting by the transformer circuit. At least one of actuators is connected on the generator side of the transformer circuit, so as to be supplied with the electric power of the first voltage.
    Type: Grant
    Filed: September 17, 2008
    Date of Patent: November 29, 2011
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Takeshi Tachibana, Hiroyoshi Ito
  • Patent number: 8004381
    Abstract: A laminated device comprising pluralities of magnetic ferrite layers, conductor patterns each formed on each magnetic ferrite layer and connected in a lamination direction to form a coil, and a non-magnetic ceramic layer formed on at least one magnetic ferrite layer such that it overlaps the conductor patterns in a lamination direction, the non-magnetic ceramic layer comprising as main components non-magnetic ceramics having higher sintering temperatures than that of the magnetic ferrite, and further one or more of Cu, Zn and Bi in the form of an oxide.
    Type: Grant
    Filed: July 5, 2007
    Date of Patent: August 23, 2011
    Assignee: Hitachi Metals, Ltd.
    Inventors: Yasuhisa Katayama, Tohru Umeno, Takeshi Tachibana
  • Publication number: 20110181274
    Abstract: A method for analyzing the DC superposition characteristics of an inductance device using a magnetic field analysis simulator, comprising a first step of determining an initial magnetization curve from initial magnetization to saturation magnetization, and pluralities of minor loops at different operating points, on a toroidal core made of the same magnetic material as that of the inductance device, and obtaining point-list data showing the relation between magnetic flux density or magnetic field strength and incremental permeability from the incremental permeability at each operating point; a second step of determining an operating point at a predetermined direct current on each element obtained by mesh-dividing an analysis model of the inductance device by a magnetic field analysis simulator based on the initial magnetization curve of the core, allocating the incremental permeability to the operating point from the point-list data, and integrating the inductance of each element obtained from the incremental
    Type: Application
    Filed: September 30, 2009
    Publication date: July 28, 2011
    Applicant: HITACHI METALS, LTD.
    Inventors: Takeshi Tachibana, Satoru Tanaka, Keiko Kikuchi
  • Publication number: 20100321140
    Abstract: Low-loss ferrite comprising 100% by mass of main components comprising 47.1-49.3% by mol of Fe2O3, 20-26% by mol of ZnO, and 6-14% by mol of CuO, the balance being NiO, and 0.1-2% by mass (as SnO2) of Sn and 0.05-2% by mass (as Mn3O4) of Mn, and having an average crystal grain size of 0.5-3 ?m.
    Type: Application
    Filed: February 6, 2008
    Publication date: December 23, 2010
    Applicant: Hitachi Metals, Ltd.
    Inventors: Satoru Tanaka, Takeshi Tachibana
  • Publication number: 20100283447
    Abstract: A multilayer inductor comprising a coil embedded in a magnetic portion, and a magnetic gap formed by a non-magnetic portion in part of a magnetic path, the magnetic portion being made of Ni ferrite, whose relative temperature coefficient ??ir of initial permeability at a frequency of 1 MHz is more than +10 ppm/° C. and +40 ppm/° C. or less between ?40° C. and +80° C., the non-magnetic portion being made of Zn ferrite containing more Zn than in the magnetic portion and having a Curie temperature Tc of ?50° C. or lower, and the Zn content changing continuously in boundary regions between the non-magnetic portion and the magnetic portion, whereby the thickness of the magnetic gap changes with the temperature.
    Type: Application
    Filed: December 25, 2008
    Publication date: November 11, 2010
    Applicant: HITACHI METALS, LTD.
    Inventors: Takeshi Tachibana, Satoru Tanaka
  • Publication number: 20100219350
    Abstract: A beam detector and a beam monitor using the same are provided, the beam detector being capable of precisely and stably detecting, for a long period of time, the position, the intensity distribution, and the change with time of radiation beams, soft x-ray beams, and the like and being manufactured at a low cost as compared to that of a conventional detection device. In a beam detector 2 for detecting the position and intensity of beams, a beam irradiation portion 6 to be irradiated with beams 7 is formed of a polycrystalline diamond (C) film 4 containing at least one element (X) selected from the group consisting of silicon (Si), nitrogen (N), lithium (Li), beryllium (Be), boron (B), phosphorus (P), sulfur (S), nickel (Ni), and vanadium (V) at an X/C of 0.1 to 1,000 ppm, and this polycrystalline diamond film 4 has a light emission function of performing light emissions 8 and 8a when it is irradiated with the beams 7.
    Type: Application
    Filed: February 27, 2007
    Publication date: September 2, 2010
    Inventors: Koji Kobashi, Takeshi Tachibana, Yoshihiro Yokota, Kazushi Hayashi
  • Publication number: 20100200758
    Abstract: A radiation detecting apparatus of the present invention is an apparatus comprising a scintillator for converting incident radiation into ultraviolet radiation having a wavelength of 220 nm or less, the scintillator being composed of, for example, Nd-doped LaF3 crystals; and a diamond thin film sensor for guiding the resulting ultraviolet radiation and converting it into an electrical signal, the radiation detecting apparatus being adapted to transform the incident radiation to the electrical signal. The radiation detecting apparatus can detect radiation, such as X-rays, ? rays, ? rays, ? rays, or neutron rays, with high sensitivity. The radiation detecting apparatus also has a fast response, is very easy to downsize, has high resistance to radiation, and can be preferably used in the medical field, the industrial field, or the security field.
    Type: Application
    Filed: February 9, 2010
    Publication date: August 12, 2010
    Inventors: Kentaro Fukuda, Noriaki Kawaguchi, Toshihisa Suyama, Akira Yoshikawa, Takayuki Yanagida, Yuui Yokota, Yoshihiro Yokota, Takeshi Tachibana
  • Publication number: 20100102626
    Abstract: The power supply system includes a generator, a transformer circuit, and a battery. The generator generates electric power of a first voltage. The transformer circuit boosts the electric power of the first voltage to a second voltage. The battery is connected, via the transformer circuit, to the generator and stores electric power of the second voltage obtained by the boosting by the transformer circuit. At least one of actuators is connected on the generator side of the transformer circuit, so as to be supplied with the electric power of the first voltage.
    Type: Application
    Filed: September 17, 2008
    Publication date: April 29, 2010
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Takeshi Tachibana, Hiroyoshi Ito
  • Publication number: 20100085140
    Abstract: A low-loss ferrite comprising as main components 46.5-49.5% by mol of Fe2O3, 17-26% by mol of ZnO, 4-12% by mol of CuO, and 0.2% or more and less than 1.2% by mol of CoO, the balance being NiO, and 0.03-1.4% by mass (as SnO2) of Sn based on 100% by mass of the main components, and having an average crystal grain size of 0.7-2.5 ?um, and an electronic device obtained by integrally sintering pluralities of layers of this low-loss ferrite and coil-shaped electrodes formed in the laminate.
    Type: Application
    Filed: April 16, 2008
    Publication date: April 8, 2010
    Applicant: Hitachi Metals, Ltd.
    Inventors: Satoru Tanaka, Takeshi Tachibana
  • Publication number: 20100033286
    Abstract: A laminated device comprising pluralities of magnetic ferrite layers, conductor patterns each formed on each magnetic ferrite layer and connected in a lamination direction to form a coil, and a non-magnetic ceramic layer formed on at least one magnetic ferrite layer such that it overlaps the conductor patterns in a lamination direction, the non-magnetic ceramic layer comprising as main components non-magnetic ceramics having higher sintering temperatures than that of the magnetic ferrite, and further one or more of Cu, Zn and Bi in the form of an oxide.
    Type: Application
    Filed: July 5, 2007
    Publication date: February 11, 2010
    Applicant: Hitachi Metals, Ltd
    Inventors: Yasuhisa Katayama, Tohru Umeno, Takeshi Tachibana
  • Publication number: 20080177444
    Abstract: According to the present invention, a power supply control device for an electric power steering device used for a power supply system comprises a main battery 40 connected to the electric power steering device via a first power supply line and a sub-battery 50 connected to the electric power steering device via a second power supply line, wherein when detecting the state of the sub-battery, said power supply control device restricts or disconnects power supply from the main battery to the electric power steering device while it permits power supply from the sub-battery to the electric power steering device, characterized in that said power supply control device prevents the detection of the state of the second battery if a vehicle speed is higher than a predetermined reference value.
    Type: Application
    Filed: November 16, 2006
    Publication date: July 24, 2008
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takeshi Tachibana, Koji Ito, Toshinori Esaka, Hidenori Matsuto
  • Patent number: 7311977
    Abstract: A highly-oriented diamond film which has a flat surface but does not have non-oriented crystals in the surface can be provided by depositing a first diamond layer on a substrate by {111} sector growth of diamond crystals by a CVD method using a gaseous mixture of methane and hydrogen as material gas, and then depositing a second diamond layer on the first diamond layer by {100} sector growth of diamond crystals by a plasma CVD method using a gaseous mixture of methane, hydrogen, and oxygen as material gas under the conditions that the pressure of the material gas is 133 hPa or more; the material gas composition is determined such that ([C]?[O])/[CH3+H2+O2] is ?0.2×10?2 or more and [O]/[C] is 1.2 or less; and the substrate temperature is between 750° C. and 1000° C.
    Type: Grant
    Filed: November 18, 2005
    Date of Patent: December 25, 2007
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Yoshihiro Yokota, Kazushi Hayashi, Takeshi Tachibana, Koji Kobashi