Patents by Inventor Yoshinobu Honkura
Yoshinobu Honkura 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: 9640319Abstract: The anisotropic rare earth magnet powder of the present invention includes powder particles having R2TM14B1-type crystals of a tetragonal compound of a rare earth element (R), boron (B), and a transition element (TM) having an average crystal grain diameter of 0.05 to 1 ?m, and enveloping layers containing at least a rare earth element (R?) and copper (Cu) and enveloping surfaces of the crystals. Owing to the presence of the enveloping layers, coercivity of the anisotropic rare earth magnet powder can be remarkably enhanced without using a scarce element such as Ga and Dy.Type: GrantFiled: October 8, 2010Date of Patent: May 2, 2017Assignee: AICHI STEEL CORPORATIONInventors: Yoshinobu Honkura, Chisato Mishima, Masao Yamazaki
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Publication number: 20170100051Abstract: The gradiometers of the present invention are developed by applying GSR sensors to have the detectability of magnetic field same to that of SQUID without a cryogenic temperature retainer. Plural GSR elements are fitted on two parallel convex line guides of the gradiometer board using two parallel concave line guides of the GSR element board to keep the parallel among wires direction of GSR elements perfectly and to cancel the outside magnetic field noise without a magnetic shield room.Type: ApplicationFiled: October 7, 2016Publication date: April 13, 2017Inventor: Yoshinobu HONKURA
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Publication number: 20170101697Abstract: A tension annealing treatment consisting of a furnace and the operation method can improve magnetic properties of magnetic wire with a diameter of under 20 ?m and achieve continuous operation without wire breakage by controlling the temperature and tensile stress in the furnace with designated values accurately by means of a wire diameter measuring device, tension measuring device, plural capstans and tension rollers between plural capstans installed in the furnace. The interval between a wire supply bobbin and a wire winding up bobbin is divided into serval parts which are controlled to have same conveyance speed and tensile stress to dissolve the deference of each other by controlling the rotary speed of capstans and the tension loaded by tension rollers.Type: ApplicationFiled: October 10, 2016Publication date: April 13, 2017Applicant: MAGNEDESIGN CORPORATIONInventor: Yoshinobu HONKURA
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Publication number: 20160329150Abstract: The present invention provides a magnetic wire alignment machine and its method to produce magnetic wire alignment on the substrate at the fine interval without twist stress. The magnetic wires can be allied along the groove on the substrate with the accuracy of ±1 ?m by the very small interval by means of a precision feeding device which can adjust the parallel displacement between the wire as a basic line and the grove observed by a microscope. The magnetic wires cut under uniform tension are temporally fixed on the grooves on the substrate by the magnetic force and cured by the resin without twist stress.Type: ApplicationFiled: May 6, 2016Publication date: November 10, 2016Applicant: MAGNEDESIGN CORPORATIONInventor: Yoshinobu HONKURA
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Publication number: 20160238673Abstract: The magnetometers possess detector part with a magnetic wire sensitive to magnetic field consisting of a domain structure of the surface domain with circular spin alignment and core domain with longitudinal spin alignment and micro coil surrounding its magnetic wire to pick up the change of longitudinal magnetizing caused by spin rotation in surface domain with circular spin alignment called as GSR effect excited by pulse with frequency of 0.5 GHz to 4 GHz. Peak coil voltage is detected by a circuit characterized with pulse generator, GSR element, Buffer circuit, sample holding circuit, amplifier circuit and means to invert it to external magnetic field. The induced coil voltage caused by parasitic coil capacitance and wiring loop is vanished by combination coil of right and left turn coil. The magnetometers can provide lower noise, wide measuring range with a small size detector part and is applied to smartphones, wearable computer and so on.Type: ApplicationFiled: February 12, 2016Publication date: August 18, 2016Applicant: MAGNEDESIGN CORPORATIONInventor: Yoshinobu HONKURA
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Patent number: 9404980Abstract: The magnetometers possess a detector part with a magnetosensitive material sensitive to the magnetic field and coil surrounding its magnetosensitive material to pick-up the magnetic field, a pulse generator circuit supplies pulse current to the magnetic material, a sample holding circuit including with an electronic switch synchronized with pulse timing for switching on/off and holding capacitance to charge electricity produced by the pickup coil during the switch on period, and an amplifier circuit amplifies the holding capacitance voltage. Magnetometers possess a Buffer circuit connecting the output side of the pickup coil with the input side of the Buffer circuit and connects the output side of the Buffer circuit with the input side of the electronic switch to transfer the pulse signal voltage induced in the pickup coil from the input side to the output side keeping the pulse signal voltage of the outside at the same level as the inside.Type: GrantFiled: January 22, 2014Date of Patent: August 2, 2016Assignee: MAGNEDESIGN CORPORATIONInventor: Yoshinobu Honkura
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Publication number: 20160116551Abstract: A technique is provided which reduces the coil pitch and increases the number of coil turns in an MI element and allows for high sensitivity and miniaturization. The MI element is configured such that a magnetic wire and a coil wound around the magnetic wire are disposed on an electrode wiring substrate. When manufacturing the coil, a three-layer structure of the coil and thin film coil strips formed by a vapor deposition process are focused on thereby to allow the coil pitch to be 14 micrometers or less. The three-layer structure comprises coil lower portions of a recessed shape, coil upper portions of a protruding shape, and through-hole portions that connect the coil lower portions with the coil upper portions.Type: ApplicationFiled: June 20, 2014Publication date: April 28, 2016Applicant: MAGNEDESIGN CORPORATIONInventor: Yoshinobu HONKURA
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Patent number: 9312055Abstract: 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: GrantFiled: April 5, 2011Date of Patent: April 12, 2016Assignee: AICHI STEEL CORPORATIONInventors: Yoshinobu Honkura, Hironari Mitarai, Hiroshi Matsuoka, Masayuki Kato, Ikuzou Okumura
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Publication number: 20150354958Abstract: A rotary information computation method eliminate measurement lag of a magnetic gyroscope. This method determines the angular velocity vector of a moving body divided into the magnitude and direction (rotation axis vector) thereof. The method for computing the rotation axis vector is altered depending on whether the rotational mode of the moving body is a stationary axis rotational mode or a free axis rotational mode. If in stationary axis rotational mode, the rotation axis vector is determined by the outer product of two difference vectors. If in free axis rotational mode, the determination is made by calculating the outer product of a difference vector and a radius vector on the basis of a set instantaneous rotational coordinate system. At such time, the rotation axis vector (ni?1) calculated at a time (ti?1) is used (i.e, as feedback) to compute the rotation axis vector (ni) at the following time (=ti?1+?t).Type: ApplicationFiled: January 24, 2014Publication date: December 10, 2015Inventor: Yoshinobu HONKURA
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Publication number: 20150355294Abstract: The magnetometers possess a detector part with a magnetosensitive material sensitive to the magnetic field and coil surrounding its magnetosensitive material to pick-up the magnetic field, a pulse generator circuit supplies pulse current to the magnetic material, a sample holding circuit including with an electronic switch synchronized with pulse timing for switching on/off and holding capacitance to charge electricity produced by the pickup coil during the switch on period, and an amplifier circuit amplifies the holding capacitance voltage. Magnetometers possess a Buffer circuit connecting the output side of the pickup coil with the input side of the Buffer circuit and connects the output side of the Buffer circuit with the input side of the electronic switch to transfer the pulse signal voltage induced in the pickup coil from the input side to the output side keeping the pulse signal voltage of the outside at the same level as the inside.Type: ApplicationFiled: January 22, 2014Publication date: December 10, 2015Applicant: MAGNEDESIGN CORPORATIONInventor: Yoshinobu HONKURA
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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: 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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Patent number: 8698503Abstract: A geomagnetic application device including a triaxial magnetic sensor, a measurement point acquiring mechanism, a calibration mechanism calibrating offset of the magnetic sensor, and an azimuth calculator. The calibration mechanism includes an offset calculation measurement point selector selecting at least six measurement points of the geomagnetic vectors from among a data set stored in the measurement point storage unit by the measurement point acquiring mechanism and storing the selected measurement points in an offset calculation measurement point storage unit. The offset calculation measurement point selector selects the measurement points from among the data set stored in the measurement point storage unit to include at least six points, component values of which are maximum or minimum in each of three orthogonal axes.Type: GrantFiled: January 30, 2012Date of Patent: April 15, 2014Assignee: Aichi Micro Intelligent CorporationInventors: Yoshinobu Honkura, Katsuhiko Tsuchida, Eiji Kako, Ryuji Masaki
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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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Publication number: 20130307547Abstract: A geomagnetic application device including a triaxial magnetic sensor, a measurement point acquiring mechanism, a calibration mechanism calibrating offset of the magnetic sensor, and an azimuth calculator. The calibration mechanism includes an offset calculation measurement point selector selecting at least six measurement points of the geomagnetic vectors from among a data set stored in the measurement point storage unit by the measurement point acquiring mechanism and storing the selected measurement points in an offset calculation measurement point storage unit. The offset calculation measurement point selector selects the measurement points from among the data set stored in the measurement point storage unit to include at least six points, component values of which are maximum or minimum in each of three orthogonal axes.Type: ApplicationFiled: January 30, 2012Publication date: November 21, 2013Applicant: Aichi Micro Intelligent CorporationInventors: Yoshinobu Honkura, Katsuhiko Tsuchida, Eiji Kako, Ryuji Masaki
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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: 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