Patents Assigned to Aichi Steel Corporation
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Publication number: 20150354042Abstract: A forged component having a chemical composition including, by mass %, C: 0.30 to 0.45%, Si: 0.05 to 0.35%, Mn: 0.50 to 0.90%, P: 0.030 to 0.070%, S: 0.040 to 0.070%, Cr: 0.01 to 0.50%, Al: 0.001 to 0.050%, V: 0.25 to 0.35%, Ca: 0 to 0.0100%, N: 0.0150% or less, and the balance being Fe and unavoidable impurities, and satisfying formula 1. Metal structure is a ferrite pearlite structure, and a ferrite area ratio is 30% or more. Vickers hardness is in the range of 320 to 380 HV. 0.2% yield strength is 800 MPa or more. A Charpy V-notch impact value is in the range of 7 to 15 J/cm2.Type: ApplicationFiled: March 18, 2014Publication date: December 10, 2015Applicants: AICHI STEEL CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takeyuki UENISHI, Susumu OWAKI, Hisanori KOMA, Tomoyasu KITANO, Kazuhiro TANAHASHI, Nobuyuki SHINOHARA
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Patent number: 9194033Abstract: A chemical composition includes, in mass percent, C: 0.30 to 0.55%, Si: 0.05 to 1.0%, Mn: 0.05 to 0.9%, P: 0.001 to 0.030%, S: 0.005 to 0.12%, Cr: 0.05 to 2.0%, Al: 0.005 to 0.05%, N: 0.0050 to 0.0200%, and the balance being Fe and unavoidable impurities, an amount of N in solid solution being not less than 0.0020%, wherein the contents of Mn and S satisfy relationships expressed by the following expressions: 2.6?Mn/S<15??(1) and Mn+6S<1.2??(2).Type: GrantFiled: March 27, 2013Date of Patent: November 24, 2015Assignee: AICHI STEEL CORPORATIONInventors: Komei Makino, Hiroyuki Mizuno
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Publication number: 20150265379Abstract: An implant overdenture system is used to fix an implant overdenture onto alveolar ridge by the support of implants. The implant overdenture has artificial teeth, a denture base, and magnetic assemblies. The implants each have an implant body and a keeper. A largest circumscribed circle diameter d1 in an outer shape of a surface-to-be-attracted of the keeper is equal to or larger than ?1.8 mm, and a largest diameter d2 of the implant body is equal to or larger than ?1.2 mm and equal to or less than ?3.5 mm, and these largest diameters have a relationship expressed by d1/d2?1.5.Type: ApplicationFiled: June 4, 2013Publication date: September 24, 2015Applicant: AICHI STEEL CORPORATIONInventors: Kazuo Arai, Yoshinobu Honkura, Yasuhiro Takeuchi, Rudi Wigianto
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Publication number: 20150234017Abstract: A magnetic field detecting device which comprises a magnetic impedance sensor including a magnetic impedance element 1 in which a detecting coil 11 wound around an amorphous wire 10 for detecting and outputting the external magnetic field around the amorphous wire at a rise time and a fall time of the pulse current in case of the pulse current is applied to the amorphous wire and a signal processing device 3 includes two sample-hold circuit 31, 32 for respectively sample-holding the alternate current damped oscillation voltage at the rise time and the fall time of the applied pulse current, wherein the output signal in response to the external magnetic field around the amorphous wire is output based on the detected two alternate current damped oscillation voltages output at the rise time and the fall time of the pulse current.Type: ApplicationFiled: February 20, 2015Publication date: August 20, 2015Applicant: AICHI STEEL CORPORATIONInventors: Michiharu YAMAMOTO, Hideo Arakawa, Takeshi Kawano
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Publication number: 20150232984Abstract: A method for etching an organic film 1 having a surface selectively protected by a hard mask layer 2, includes a partial etching process of etching the organic film 1 partly in a thickness direction of the organic film 1 by using a mixed gas containing a gas that anisotropically etches a silicon oxide film and a gas that isotropically etches the organic film without etching the silicon oxide film; and a deposition process of depositing a protective film 3 made of the silicon oxide film on side surfaces 12 and a bottom surface 11 of a recess 10 formed in the organic film in the partial etching process. The partial etching process and the deposition process is alternately performed multiple times.Type: ApplicationFiled: February 18, 2015Publication date: August 20, 2015Applicant: AICHI STEEL CORPORATIONInventors: Michiharu YAMAMOTO, Shunichi TATEMATSU, Ryusuke YAMASHITA, Norihiko HAMADA, Koei GEMBA
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Publication number: 20150231406Abstract: A magnetic field generator is attachable to an implant body formed from a non-magnetic material to be inserted in a jawbone. The magnetic field generator includes a magnet body that generates magnetism. The magnetic field generator is mountable to and removable from the implant body. The magnetic field generator in a state of being mounted to the implant body forms a magnetic field around the implant body.Type: ApplicationFiled: July 22, 2013Publication date: August 20, 2015Applicant: AICHI STEEL CORPORATIONInventors: Kazuo Arai, Yoshinobu Honkura
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Publication number: 20150219731Abstract: A magnetic field detecting device which comprises a magnetic impedance sensor including a magnetic impedance element 1 in which a pulse electrical current or a high frequency electrical current is applied from an oscillator 2 to an amorphous wire 10 and an alternate current or AC damped oscillation voltage, which is induced in a detecting coil 11 wound around the amorphous wire 10 and has a magnitude corresponding to an external magnetic field, is output, and an arbitrary magnetic field is applied to the amorphous wire by means of the magnetic field generated on the detecting coil 11 energized by connecting the detecting coil 11 to a voltage source or to a current source E through an impedance network 3 comprising of a resistor R or a coil L or a condenser C or comprising a combination of the resistor R, the coil L, and the condenser C.Type: ApplicationFiled: January 23, 2015Publication date: August 6, 2015Applicant: AICHI STEEL CORPORATIONInventors: Michiharu YAMAMOTO, Hideo ARAKAWA, Takeshi KAWANO
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Publication number: 20150145625Abstract: A magnetic field generating device includes a triaxial Helmholtz coil 3, amounting table 4 on which a portable device 2 is mounted, a current supplying part 5 and a controlling part 6. The current supplying part 5 supplies current I to individual three monoaxial Helmholtz coils 30 which construct the triaxial Helmholtz coil 3. The controlling part 6 changes the current flowing through the individual monoaxial Helmholtz coils 30 in such a manner that a synthetic magnetic field of a magnetic field generated within the triaxial Helmholtz coil 3 by the current I and an external magnetic field which acts from the outside into the triaxial Helmholtz coil 3 acts on a triaxial magnetic sensor 20 within the portable device 2 mounted on the mounting table 4 from a plurality of predetermined directions.Type: ApplicationFiled: November 12, 2014Publication date: May 28, 2015Applicant: AICHI STEEL CORPORATIONInventors: Masahiko FUKASAWA, Masaaki Nakada, Ryuji Kambara
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Publication number: 20150101257Abstract: The abrasive material contains Fe, Si, Ca, Al, Mg and Mn and has an amorphous continuous phase, wherein the total amount of Fe, Si and Ca is 50.0% or more by mass in terms of the total content of FeO, SiO2 and CaO, Fe is contained in an amount of 6.0% to 35.0% by mass inclusive in terms of FeO content, Si is contained in an amount of 15.0% to 35.0% by mass inclusive in terms of SiO2, and Ca is contained in an amount of 10.0% to 35.0% by mass inclusive in terms of CaO content, wherein all of the amounts are those relative to the entire amount of the abrasive material.Type: ApplicationFiled: May 20, 2013Publication date: April 16, 2015Applicant: AICHI STEEL CORPORATIONInventors: Akira Tsubone, Yasuhiko Kamiya, Shogo Kuwabara
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Patent number: 8945631Abstract: Provided are: a liquid for treatment of Citrus greening disease, which is capable of curing citrus trees with Citrus greening disease; and a treatment method using the liquid. The liquid for treatment of Citrus greening disease contains Fe ions and at least some of the Fe ions are present in the form of Fe2+ ions. This treatment liquid contains a predetermined amount of Fe ions and an acid. Citrus greening disease is able to be cured by spraying the treatment liquid onto leaves of citrus trees infected with Citrus greening disease or by pouring the treatment liquid on the roots of citrus trees infected with Citrus greening disease.Type: GrantFiled: December 1, 2011Date of Patent: February 3, 2015Assignees: Hiroshima University, Aichi Steel CorporationInventors: Yoshikuni Masaoka, Makoto Usui, Tomoya Matsuyama
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Publication number: 20150023833Abstract: An electric furnace steel contains, by mass %, C: 0.12 to 0.28%, Si: equal to or less than 0.15%, Mn: 0.65 to 0.95%, P: equal to or less than 0.035%, S: equal to or less than 0.035%, Cr: 1.35 to 1.90%, Al: 0.020 to 0.050%, and N: 0.0080 to 0.0230%. A scrap material is selected such that Cu, Ni, and Mo that derive from the scrap material and are thus contained as impurities in the electric furnace steel satisfy Expression 1. The electric furnace steel further contains Fe and unavoidable impurities as a remainder thereof. Accordingly, the electric furnace steel can secure carburizing quality equivalent to or higher than that of Cr—Mo steel, and can have properties equivalent to or higher than that of Cr—Mo steel, without adding Mo. ([Cu]+2×[Ni])0.76×[Mo]?0.Type: ApplicationFiled: July 18, 2014Publication date: January 22, 2015Applicant: AICHI STEEL CORPORATIONInventors: Yuji Adachi, Naoki Fukuda
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Patent number: 8610427Abstract: The magneto-sensitive wire of the invention has a vortex-spin structure and hence includes no magnetic domain walls, so that the magneto-sensitive wire of the invention has an excellent hysteresis characteristic exhibiting nearly zero hysteresis. Therefore, the linearity related to the output voltage characteristic for the applied magnetic field in the determination range of an MI sensor is significantly improved as compared to MI sensors using the conventional magneto-sensitive wires. Using the magneto-sensitive wire of the invention makes it possible to provide a magneto-impedance (MI) element exhibiting a higher precision than the conventional ones and further provide a sensor using such an MI element.Type: GrantFiled: March 25, 2009Date of Patent: December 17, 2013Assignee: Aichi Steel CorporationInventors: Yoshinobu Honkura, Michiharu Yamamoto, Norihiko Hamada, Akihiro Shimode
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Patent number: 8591233Abstract: A magnetic device includes a cylindrical portion and a flange portion. The cylindrical portion is mounted with a cylindrical shaped flexible sleeve. The sleeve is axially longer than the cylindrical portion and includes an outer peripheral concavo-convex portion. When one end of the sleeve is abutted on a flange portion, the other end of the sleeve is projected above an attractive surface to form a keeper housing recess. The sleeve is relatively moved in an axial direction of the magnetic device to be inserted into and removed from a top end of the cylindrical portion. The magnetic device is used under condition the sleeve is fitted, an outer side surface of the magnetic device including the outer peripheral concavo-convex portion of the sleeve and the flange portion abutted on the one end of the sleeve is embedded in a denture base, and the keeper housing recess is exposed.Type: GrantFiled: April 15, 2011Date of Patent: November 26, 2013Assignee: Aichi Steel CorporationInventors: Kazuo Arai, Yoshinobu Honkura, Yasuhiro Takeuchi
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Patent number: 8587300Abstract: An MI sensor element 1 includes a substrate 4 formed of a non-magnetic material, a plurality of magneto-sensitive bodies 2, and a plurality of detecting coils 3. The plurality of magneto-sensitive bodies 2 are formed of an amorphous material, and are fixed on the substrate 4, and are electrically connected to each other. The detecting coils 3 are wound around each of the magneto-sensitive bodies 2, and are electrically connected to each other. The MI sensor element 1 outputs a voltage corresponding to a magnetic field strength acting on the magneto-sensitive bodies 2 from the detecting coil 3 by flowing a pulse current or a high-frequency current to the magneto-sensitive body 2. The plurality of magneto-sensitive bodies 2 are formed by fixing one amorphous wire 20 on the substrate 4, and then cutting the wire.Type: GrantFiled: September 6, 2011Date of Patent: November 19, 2013Assignee: Aichi Steel CorporationInventors: Yoshinobu Honkura, Michiharu Yamamoto, Norihiko Hamada
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Publication number: 20130259954Abstract: Provided are: a liquid for treatment of Citrus greening disease, which is capable of curing citrus trees with Citrus greening disease; and a treatment method using the liquid. The liquid for treatment of Citrus greening disease contains Fe ions and at least some of the Fe ions are present in the form of Fe2+ ions. This treatment liquid contains a predetermined amount of Fe ions and an acid. Citrus greening disease is able to be cured by spraying the treatment liquid onto leaves of citrus trees infected with Citrus greening disease or by pouring the treatment liquid on the roots of citrus trees infected with Citrus greening disease.Type: ApplicationFiled: December 1, 2011Publication date: October 3, 2013Applicants: AICHI STEEL CORPORATION, HIROSHIMA UNIVERSITYInventors: Yoshikuni Masaoka, Makoto Usui, Tomoya Matsuyama
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Publication number: 20130181705Abstract: An MI sensor element 1 includes a substrate 4 formed of a non-magnetic material, a plurality of magneto-sensitive bodies 2, and a plurality of detecting coils 3. The plurality of magneto-sensitive bodies 2 are formed of an amorphous material, and are fixed on the substrate 4, and are electrically connected to each other. The detecting coils 3 are wound around each of the magneto-sensitive bodies 2, and are electrically connected to each other. The MI sensor element 1 outputs a voltage corresponding to a magnetic field strength acting on the magneto-sensitive bodies 2 from the detecting coil 3 by flowing a pulse current or a high-frequency current to the magneto-sensitive body 2. The plurality of magneto-sensitive bodies 2 are formed by fixing one amorphous wire 20 on the substrate 4, and then cutting the wire.Type: ApplicationFiled: September 6, 2011Publication date: July 18, 2013Applicant: AICHI STEEL CORPORATIONInventors: Yoshinobu Honkura, Michiharu Yamamoto, Norihiko Hamada
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Patent number: 8461834Abstract: A magneto-impedance sensor element is formed in a planar type structure in which an amorphous wire is incorporated in a substrate. The magneto-impedance sensor element includes a nonmagnetic substrate, an amorphous wire arranged in an aligning direction of a planar pattern that forms a detecting coil, a spiral detecting coil formed of a planar pattern and a cubic pattern on an outer periphery of the amorphous wire, a planar insulating portion that insulates the planar pattern from the amorphous wire, a wire fixing portion to fix the amorphous wire on an upper surface of the planar insulating portion, and a cubic insulating portion that insulates the cubic pattern from the amorphous wire.Type: GrantFiled: February 27, 2009Date of Patent: June 11, 2013Assignee: Aichi Steel CorporationInventors: Yoshinobu Honkura, Michiharu Yamamoto, Katsuhiko Nishihata
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Patent number: 8455962Abstract: A magneto-impedance sensor element has a base body, a magnetic amorphous wire, a coating insulator, a detecting coil, a terminal base having a terminal mounting surface, wire electrode terminals and coil electrode terminals formed on the terminal mounting surface, wire connecting wirings for electrically connecting the wire electrode terminals and a pair of wire conducting terminals provided to the magnetic amorphous wire, and coil connecting wirings for electrically connecting the coil electrode terminals and a pair of coil conducting terminals provided to the detecting coil. A normal of the terminal mounting surface has a longitudinal direction component of the magnetic amorphous wire, and the terminal mounting surface is arranged between both ends of the magnetic amorphous wire in the longitudinal direction of the magnetic amorphous wire.Type: GrantFiled: June 9, 2009Date of Patent: June 4, 2013Assignee: Aichi Steel CorporationInventors: Yoshinobu Honkura, Michiharu Yamamoto, Katsuhiko Nishihata
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Publication number: 20130093121Abstract: A method for production of an anisotropic bonded magnet includes: aligning magnetic pole bodies which include an even number of permanent magnets arranged uniformly around an outer periphery of an annular cavity filled with magnetic raw material, aligning magnetic fields to cause rare-earth anisotropic magnet powder to be semi-radially aligned; compressively molding the semi-radially aligned magnet raw material to obtain an annular compact; discharging the compact from the annular cavity; demagnetizing causing the aligning magnetic pole bodies to relatively move only in circumferential direction with respect to the compact after the molding step thereby to apply demagnetization magnetic fields to the compact. The demagnetization magnetic fields are applied from the aligning magnetic pole bodies with opposite poles to those during the alignment step, and the demagnetization magnetic fields are in directions for cancelling the magnetization of the compact caused by the aligning magnetic fields.Type: ApplicationFiled: April 5, 2011Publication date: April 18, 2013Applicant: AICHI STEEL CORPORATIONInventors: Yoshinobu Honkura, Hironari Mitarai, Hiroshi Matsuoka, Masayuki Kato, Ikuzou Okumura
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Publication number: 20130069747Abstract: A production method for a case-integrated bonded magnet includes: filling a tubular cavity with a magnet raw material that includes a rare-earth magnet powder and a thermosetting resin binder; heating the magnet raw material to cause the thermosetting resin softened or melted while compressively molding the magnet raw material to obtain a tubular compact; discharging the tubular compact from the tubular cavity while press-fitting the tubular compact into a metal tubular case having an inner peripheral surface coaxial with the tubular cavity; and heat-curing the tubular compact with the tubular case to cure the thermosetting resin. The tubular compact press-fitted into the tubular case is thermally cured thereby causing the tubular compact to transform to a tubular bonded magnet, which expands unexpectedly due to heat.Type: ApplicationFiled: April 5, 2011Publication date: March 21, 2013Applicant: Aichi Steel CorporationInventors: Yoshinobu Honkura, Hironari Mitarai, Hiroshi Matsuoka, Masayuki Kato, Ikuzou Okumura