Patents by Inventor Takayuki Koyama
Takayuki Koyama 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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Publication number: 20140320441Abstract: A touch panel includes one transparent substrate. The transparent substrate includes: a main-region for detecting a touched two-dimensional location, the main region including a two-dimensional touch sensor that detects the touched two-dimensional location; and at least one sub region for detecting whether or not a touch has been done, the sub region including a one-layer-structured touch sensor. In the two-dimensional touch sensor, a main-side insulating layer is provided between an earlier-formed portion and a later-formed portion. Accordingly, the touch panel can be configured such that the main-side insulating layer and a sub-side insulating layer can be formed in the same step and the later-formed portion and the one-layer-structured touch sensor can be formed in the same step when a paint film layer having an icon drawn is provided in the sub region and the sub-side insulating layer is provided between the paint film layer and the one-layer-structured touch sensor.Type: ApplicationFiled: November 30, 2012Publication date: October 30, 2014Inventors: Chiemi Yamada, Yuhji Sugiyama, Takashi Umemoto, Takashi Ueno, Takayuki Koyama, Kazuyoshi Morimoto, Tomohiro Yanagawa
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Publication number: 20140141339Abstract: A method for producing a sulfide solid electrolyte material includes a step of adding an ether compound to a coarse-grained material of a sulfide solid electrolyte material and microparticulating the coarse-grained material by a pulverization treatment.Type: ApplicationFiled: July 12, 2012Publication date: May 22, 2014Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Koichi Sugiura, Hiroki Kubo, Yuichi Hashimoto, Takayuki Koyama
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Publication number: 20140093785Abstract: The invention provides a method of producing a solid sulfide electrolyte material, with this method including a microparticulation step in which a sulfide glass containing Li, S, and P is mixed with an adhesive polymer and the sulfide glass is ground.Type: ApplicationFiled: May 11, 2012Publication date: April 3, 2014Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Koichi Sugiura, Koji Kawamoto, Takayuki Koyama
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Publication number: 20130187515Abstract: A vehicular alternating current generator includes a Lundell rotor and a stator. The Lundell rotor includes a cylindrical portion around which a field coil is wound; plate-shaped first and second end plate portions disposed on both end faces in an axial direction of the cylindrical portion so as to face each other; a plurality of first claw portions extending in parallel with a rotational axis in a direction from the first end plate portion to the second end plate portion; and second claw portions extending in parallel with the rotational axis in a direction from the second end plate portion to the first end plate portion, the second claw portions being disposed circumferentially and alternately relative to the first claw portions. The stator is disposed on an outer periphery of the rotor so as to face the rotor with a small rotational air gap there between.Type: ApplicationFiled: March 31, 2010Publication date: July 25, 2013Applicant: Hitachi Ltd.Inventors: Kenji Miyata, Takayuki Koyama, Maki Ishikawa
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Publication number: 20130082564Abstract: An alternator for a vehicle includes: a rundel-type rotor including a cylindrical portion around which a field coil is wound, a pair of plate-shaped end plate portions which are arranged such that the end plate portions face both end surfaces of the cylindrical portion in the axial direction in an opposed manner, first claw portions which extend parallel to a rotary axis from one end plate portion, and second claw portions which extend parallel to the rotary axis from the other end plate portion, and a stator which is arranged on an outer peripheral side of the rotor with a rotary gap therebetween so as to face the rotor in an opposed manner, and has a laminated core on which an armature coil is wound. The between claw magnetic poles of the first and second claw portions is set to a optimum gap range to maximize output current.Type: ApplicationFiled: May 31, 2010Publication date: April 4, 2013Applicant: HITACHI, LTD.Inventors: Yoshihisa Ishikawa, Kenji Miyata, Takayuki Koyama
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Publication number: 20120038238Abstract: A vehicular AC generator includes: a rotor (1) with a plurality of magnetic poles (113), assuming a shape for suppressing bias magnetism, and disposed along a circumferential direction, which includes a field winding (12); a stator (2) disposed so as to leave a gap between the rotor (1) and the stator (2); and a semiconductor element that rectifies an AC current induced at a stator coil (105) wound at the stator (2) as power is supplied to the field winding (112) at the rotor (1) so as to convert the AC current to a DC current, wherein: the stator (2) is formed by laminating electromagnetic steel plates; and a resistance value of the stator coil (105) wound at the stator (2) is set to a value equal to or less than a predetermined value.Type: ApplicationFiled: March 11, 2009Publication date: February 16, 2012Applicant: Hitachi, Ltd.Inventors: Yoshihisa Ishikawa, Kenji Miyata, Takayuki Koyama, Masahiko Honma
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Publication number: 20110163641Abstract: The present invention can achieve a highly efficient permanent-magnet synchronous motor that can obtain output in a high-speed area without prolonging the axis of the permanent-magnet synchronous motor. The present invention provides a highly efficient permanent-magnet synchronous motor that can obtain output in a high-speed area without prolonging the axis of the permanent-magnet synchronous motor, in which stator magnetic poles are formed by dividing a magnetic pole in each phase into a plurality of parts and placing them in a circumferential direction with respect to a rotational axis, at least one divided stator magnetic pole being made movable in the circumferential direction with respect to the rotational axis, and the phase of the movable stator is controlled.Type: ApplicationFiled: May 3, 2010Publication date: July 7, 2011Inventors: Takayuki Koyama, Hiroshi Kanazawa, Shoichi Kawamata
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Publication number: 20100253178Abstract: The present invention can achieve a highly efficient permanent-magnet synchronous motor that can obtain output in a high-speed area without prolonging the axis of the permanent-magnet synchronous motor. The present invention provides a highly efficient permanent-magnet synchronous motor that can obtain output in a high-speed area without prolonging the axis of the permanent-magnet synchronous motor, in which stator magnetic poles are formed by dividing a magnetic pole in each phase into a plurality of parts and placing them in a circumferential direction with respect to a rotational axis, at least one divided stator magnetic pole being made movable in the circumferential direction with respect to the rotational axis, and the phase of the movable stator is controlled.Type: ApplicationFiled: December 25, 2008Publication date: October 7, 2010Inventors: Takayuki Koyama, Hiroshi Kanazawa, Shoichi Kawamata
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Patent number: 7649299Abstract: It is made easy for a stator winding to be wound around a stator core and degradation in efficiency is prevented as much as possible. A stator (6) includes a plurality of phases, i.e., of circumferentially divided stator magnetic poles (6a, 6b, 6c). The stator magnetic poles (6a, 6b, 6c) are each composed of an arcuate stator core (13) having a plurality of axially extending claw poles (16b) and a circumferentially elliptically wound stator winding (14). The stator magnetic poles (6a, 6b, 6c) are magnetically divided; therefore, magnetic flux leakage is reduced to improve efficiency. Air flowing between the stator magnetic poles (6a, 6b, 6c) can improve a cooling effect.Type: GrantFiled: August 7, 2007Date of Patent: January 19, 2010Assignee: Hitachi, Ltd.Inventors: Hiroshi Kanazawa, Takayuki Koyama, Masashi Kitamura, Susumu Tajima, Kenya Takarai
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Publication number: 20090102314Abstract: A rotating electrical machine includes: a stator that includes two stator stages each constituted with a plurality of claw poles extending toward opposite sides along an axial direction at alternate positions and a ring-shaped core back that forms a magnetic path between the claw poles, the two stator stages being stacked over along the axial direction; a stator winding formed by winding a coil in a ring shape and disposed in a space enclosed by the claw poles and the core back at each of the stator stages; and a rotor rotatably disposed at a position facing the claw poles of the stator, and: stator windings corresponding to a plurality of phases are disposed together at least at one of the two stator stages.Type: ApplicationFiled: August 22, 2008Publication date: April 23, 2009Applicant: Hitachi, Ltd.Inventors: Kenji Miyata, Yoshihisa Ishikawa, Motoya Ito, Yuji Enomoto, Takayuki Koyama
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Publication number: 20090001843Abstract: A rotating electrical machine includes: a claw pole stator constituted with a stator core that includes a plurality of claw poles and a stator coil wound inside the stator core; and a rotor rotatably disposed at a position facing opposite the claw poles. The stator core is constituted of split blocks each corresponding to at least one of magnetic pole pairs each made up with two claw poles assuming different magnetic polarities when an electric current is supplied to the stator coil.Type: ApplicationFiled: June 19, 2008Publication date: January 1, 2009Applicant: Hitachi, Ltd.Inventors: Yuji Enomoto, Yoshihisa Ishikawa, Motoya Ito, Hiroshi Kanazawa, Kenji Miyata, Takahiro Makiyama, Takayuki Koyama
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Publication number: 20080079322Abstract: It is made easy for a stator winding to be wound around a stator core and degradation in efficiency is prevented as much as possible. A stator 6 includes a plurality of phases, i.e., of circumferentially divided stator magnetic poles 6a, 6b, 6c. The stator magnetic poles 6a, 6b, 6c are each composed of an arcuate stator core 13 having a plurality of axially extending claw poles 16b and a circumferentially elliptically wound stator winding 14. The stator magnetic poles 6a, 6b, 6c are magnetically divided; therefore, magnetic flux leakage is reduced to improve efficiency. Air flowing between the stator magnetic poles 6a, 6b, 6c can improve a cooling effect.Type: ApplicationFiled: August 7, 2007Publication date: April 3, 2008Applicant: Hitachi, Ltd.Inventors: Hiroshi KANAZAWA, Takayuki Koyama, Masashi Kitamura, Susumu Tajima, Kenya Takarai
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Publication number: 20080018289Abstract: A single-phase permanent magnet motor control apparatus, in particular, a low price, flat output torque, low vibration, low noise single-phase permanent magnet motor control apparatus, and a fan and pump using such a single-phase permanent magnet motor control apparatus are provided. In a single-phase permanent magnet motor control apparatus for driving a single-phase permanent magnet motor by using a DC power supply, a converter for converting DC to AC, and a control circuit for controlling the converter, a motor current measuring unit, a terminal voltage measuring unit, a correction unit for correcting an impedance drop in motor constants, and a calculation unit for finding an induced voltage to be obtained by control are included, and a polarity of a terminal voltage is determined on the basis of a value of the found induced voltage.Type: ApplicationFiled: July 19, 2007Publication date: January 24, 2008Inventors: Fumio Tajima, Shigeru Kakugawa, Masashi Kitamura, Shoichi Kawamata, Hiroshi Kanazawa, Takayuki Koyama, Shoji Ohiwa, Osamu Sekiguchi
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Publication number: 20070067619Abstract: An authentication apparatus which, during processing a job which is initiated according to occurrence of an event and is performed based on an instruction sheet, implements the authentication processing required for processing the job, the apparatus includes a determination section that determines whether authentication is required for processing the job; a request section that, in case where the determination section determines that the authentication is required, requests a possessor of the job to input authentication information; a reception that, according to the request by the request section, receives the authentication information which is inputted by the possessor; and an implementation section that, on the basis of the authentication information which the reception receives, implements the authentication processing.Type: ApplicationFiled: September 11, 2006Publication date: March 22, 2007Applicant: FUJI XEROX CO., LTD.Inventor: Takayuki Koyama
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Patent number: 7076919Abstract: An automobile window pane structure includes a window pane, a resin layer injection molded on the front part of an interior surface of the window pane, and a hinge member including a base embedded in the layer. The hinge member further includes a pair of elastically deformable supporting arms extending from the base, and attachment portions provided at distal ends of the respective supporting arms and having therein attachment openings for attachment to a sash or its vicinity.Type: GrantFiled: December 23, 2003Date of Patent: July 18, 2006Assignee: Nippon Sheet Glass Co., Ltd.Inventors: Seiji Katakura, Takayuki Koyama, Kiyomi Nakagawa
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Publication number: 20040245803Abstract: An automobile window pane structure includes a window pane, a resin layer injection molded on the front part of an interior surface of the window pane, and a hinge member including a base embedded in the layer. The hinge member further includes a pair of elastically deformable supporting arms extending from the base, and attachment portions provided at distal ends of the respective supporting arms and having therein attachment openings for attachment to a sash or its vicinity.Type: ApplicationFiled: December 23, 2003Publication date: December 9, 2004Applicant: NIPPON SHEET GLASS CO., LTD.Inventors: Seiji Katakura, Takayuki Koyama, Kiyomi Nakagawa
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Publication number: 20040193746Abstract: A service search device includes a receiver that receives a search condition for searching a service which executes a process on document data, a searching controller that searches a service processor for providing the service corresponding to the search condition received by the receiver through a network where plural service processors are connected to execute the process on the document data, and a transmitter that transmits a search result of the searching controller.Type: ApplicationFiled: December 29, 2003Publication date: September 30, 2004Applicant: FUJI XEROX CO., LTD.Inventor: Takayuki Koyama
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Patent number: 5446536Abstract: When a predetermined region of a light-transmitting platelike member, such as a front windshield, is divided into a plurality of small parts to detect its optical distortion, and a target is sensed in turn through each small part of the region by image sensing means, according to one aspect of this invention, the target has at least three light emitting points capable of representing at least one angle, according to another aspect of this invention, the target represents at least two segments capable of forming at least one predetermined angle, and according to further aspect of this invention, a plurality of unit targets are arrayed in a predetermined direction, the image sensing means is swung along the above predetermined direction, and the platelike member is rotated in a direction across the predetermined direction.Type: GrantFiled: April 30, 1993Date of Patent: August 29, 1995Assignee: Nippon Sheet Glass Co., Ltd.Inventors: Atsushi Miyake, Yoshimitsu Matsushita, Takayuki Koyama