Patents by Inventor Kazuhiro Goto

Kazuhiro Goto 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).

  • Patent number: 8853914
    Abstract: A stator core capable of improving stator core segments in assemblability, positioning accuracy and rigidity is provided. A stator core includes a plurality of stator core segments, and a yoke part of each stator core segment has a first junction and a second junction joined to other adjacent stator core segments. A protrusion is formed at the first junction, and a recess capable of receiving the protrusion is formed at the second junction. The opening area of the recess increases from a deepest section of the recess to an opening of the recess. In the yoke part, a first caulking site where the stator core segment is caulked in an axial direction is formed on an arc passing through the central part of a radial length of the protrusion and extending in a circumferential direction.
    Type: Grant
    Filed: February 3, 2010
    Date of Patent: October 7, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kazuhiro Goto, Tatsuhiko Mizutani, Hiroyuki Ikuta, Yasuhide Yagyu
  • Publication number: 20140234725
    Abstract: Provided is a method for producing a nonaqueous-electrolyte battery. A positive-electrode body 1 is prepared that includes a positive-electrode active-material layer 12 including a powder-molded body, and a positive-electrode-side solid-electrolyte layer 13 that is amorphous and formed by a vapor-phase process. A negative-electrode body 2 is prepared that includes a negative-electrode active-material layer 22 including a powder-molded body, and a negative-electrode-side solid-electrolyte layer 23 that is amorphous and formed by a vapor-phase process. The positive-electrode body 1 and the negative-electrode body 2 are bonded together by subjecting the electrode bodies 1 and 2 being arranged such that the solid-electrolyte layers 13 and 23 are in contact with each other, to a heat treatment under application of a pressure to crystallize the solid-electrolyte layers 13 and 23.
    Type: Application
    Filed: February 14, 2013
    Publication date: August 21, 2014
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Mitsuyasu Ogawa, Kazuhiro Goto, Kentaro Yoshida, Takashi Uemura, Ryoko Kanda, Keizo Harada
  • Publication number: 20140225465
    Abstract: In order to provide a rotary electric machine with a reduced size and improved weldability, the stator of a rotary electric machine has a segment coil formed by bending rectangular conductors, and a stator core having slots in which the segment coil is inserted. As for the weld parts formed at the tips of the lead parts of the segment coil which protrude from the end face of the stator core and are twisted together, at least one of the weld beads aligned in the radial direction of the stator is an oblong body that is long in the radial direction of the stator core, and the angle formed by the longitudinal direction of the oblong body and the axial direction of the stator core is less than 90 degrees in a core cross section that includes the central axis of the stator core.
    Type: Application
    Filed: December 28, 2011
    Publication date: August 14, 2014
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Kazuhiro Goto
  • Patent number: 8785051
    Abstract: Provided are a nonaqueous-electrolyte battery in which short circuits between the positive- and negative-electrode layers can be suppressed with certainty and a method for producing the battery. A nonaqueous-electrolyte battery 100 includes a positive-electrode active-material layer 12 containing a Li-containing oxide; a negative-electrode active-material layer 22 on which deposition of Li metal can occur; and a sulfide-solid-electrolyte layer (SE layer) 3 disposed between these active-material layers 12 and 22. The SE layer 3 of the nonaqueous-electrolyte battery 100 includes a powder-formed layer 31 and a dense-film layer 32 formed on a surface of the powder-formed layer 31 by a vapor-phase process.
    Type: Grant
    Filed: August 24, 2011
    Date of Patent: July 22, 2014
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Yasushi Mochida, Mitsuyasu Ueda, Kentaro Yoshida, Tomoharu Takeyama, Kazuhiro Goto
  • Patent number: 8766497
    Abstract: A motor-generator which is a rotating electrical machine is provided with a coil end cover and a plurality of connecting wires. The coil end cover forms a cooling oil passage around a coil end portion and a cooling oil passage around a coil end portion, and a cooling oil communicating passage that communicates the cooling oil passage with the cooling oil passage on the inside of the stator core. The plurality of connecting wires are provided in the cooling oil passage. The direction in which the cooling oil flows in the cooling oil passage is the same as the direction in which the connecting wires extend at an angle from the radial outside to the radial inside of the stator core. The flowrate of cooling oil in the cooling oil passage is set larger than the flowrate of cooling oil in the cooling oil passage.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: July 1, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kazuhiro Goto, Yasuhiro Endo, Tomoka Sonohara, Tomohiko Miyamoto, Masao Okumura, Atomi Arakawa
  • Publication number: 20130302698
    Abstract: Provided is a nonaqueous electrolyte battery that has a high capacity and a high volume power density and can have an enhanced charge-discharge cycle capability. The nonaqueous electrolyte battery includes a positive-electrode layer, a negative-electrode layer, and a solid-electrolyte layer disposed between these layers. The negative-electrode layer contains a powder of a negative-electrode active material and a powder of a solid electrolyte. In the negative-electrode active material, a charge-discharge volume change ratio is 1% or less and the powder has an average particle size of 8 ?m or less. The solid-electrolyte layer is formed by a vapor-phase process. Examples of the negative-electrode active material having a charge-discharge volume change ratio of 1% or less include Li4Ti5O12 and non-graphitizable carbon.
    Type: Application
    Filed: January 18, 2012
    Publication date: November 14, 2013
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Kazuhiro Goto, Takashi Uemura, Kentaro Yoshida, Tomoharu Takeyama, Ryoko Kanda
  • Publication number: 20130273438
    Abstract: A positive-electrode body 1 is prepared that includes a positive-electrode active-material layer 12 including a powder-molded body, and a positive-electrode-side solid-electrolyte layer (PSE layer) 13 that is amorphous and formed on the positive-electrode active-material layer 12 by a vapor-phase process. A negative-electrode body 2 is prepared that includes a negative-electrode active-material layer 22 including a powder-molded body, and a negative-electrode-side solid-electrolyte layer (NSE layer) 23 that is amorphous and formed on the negative-electrode active-material layer 22 by a vapor-phase process. The positive-electrode body 1 and the negative-electrode body 2 are bonded together by subjecting the electrode bodies 1 and 2 being arranged such that the solid-electrolyte layers 13 and 23 of the electrode bodies 1 and 2 are in contact with each other, to a heat treatment under application of a pressure to crystallize the PSE layer 13 and the NSE layer 23.
    Type: Application
    Filed: December 28, 2011
    Publication date: October 17, 2013
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Kentaro Yoshida, Kazuhiro Goto, Ryoko Kanda, Tomoharu Takeyama
  • Publication number: 20130264899
    Abstract: In a stator and a rotating electric machine equipped with this stator, the insulation properties of a coil are ensured by suppressing lead wire stress generated during a stator assembly process. The stator has a stator core, a coil wound around the stator core, lead wires led out from the coil, and power lines provided between the lead wires and a connection terminal of an external circuit. The lead wires and the power lines are electrically connected with each other through an elastically deformable elastic bus bar. Even if a shift occurs in the relative position between the coil and the connection terminal during the assembly process of the stator, this configuration allows the elastic bus bar to absorb the shift and makes it possible to suppress the stress generated on the lead wires.
    Type: Application
    Filed: December 28, 2010
    Publication date: October 10, 2013
    Applicants: DENSO CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kazuhiro Goto, Yusuke Kurono, Tatsuhiko Mizutani, Kazuya Onuki
  • Patent number: 8541954
    Abstract: A first energy ratio A/B of a first alternating current of a steady frequency supplied to a lamp is set to a value C, when the lamp is horizontally placed. A second alternating current of a lower frequency, whose second energy ratio A/B is set to the value C, is inserted. When the lamp is vertically placed, a first energy ratio A?/B? is set to the value C or a value D, which is smaller than the value C. A second ratio A?/B? is set to the value D or a value E, which is lower than the value C. A and A? each represents an energy that flows from a first electrode of a pair of electrodes of the lamp to a second electrode of the pair. B and B? each represents an energy that flows from the second electrode to the first electrode.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: September 24, 2013
    Assignee: Ushio Denki Kabushiki Kaisha
    Inventors: Kosuke Saka, Kazuhiro Goto, Takashi Yamashita
  • Patent number: 8534890
    Abstract: A light pipe assembly includes a light pipe and an optical concentrator. The light pipe is elongated between opposite ends along a longitudinal axis. The light pipe is formed from a light transmissive material. The optical concentrator is joined to the first end of the light pipe and includes an end section and an opposite coupling end connected to the first end of the light pipe. The end section is configured to receive light generated by a light source. The optical concentrator is formed from a light transmissive material that conveys light through the optical concentrator. The optical concentrator focuses the light generated by the light source into the first end of the light pipe.
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: September 17, 2013
    Assignee: Tyco Electronics Canada ULC
    Inventors: Kazuhiro Goto, Dragos Luca
  • Patent number: 8519701
    Abstract: A magnetic resolver includes a stator core made of magnetic material, coils, and a rotor. The stator core has a base plate and protrusions formed integrally with the base plate so as to protrude from a surface of the base plate in the thickness direction. The coils are provided around the respective protrusions. The rotor is disposed so as to face the surface of the base plate with the coils interposed therebetween. The overlapping area between the rotor and each of the protrusions changes with a change in a rotation angle of the rotor relative to the stator core. The stator core has through-holes that pass through the base plate and the respective protrusions in the thickness direction.
    Type: Grant
    Filed: September 9, 2010
    Date of Patent: August 27, 2013
    Assignees: Toyota Jidosha Kabushiki Kaisha, Matsuo Industries, Inc.
    Inventors: Kazuhiro Goto, Eiji Yamada, Toshihiro Kimura, Yuji Sekitomi, Yuki Yamakawa, Mutsumi Matsuura, Takashi Sano, Hiroshi Abe
  • Patent number: 8513553
    Abstract: A combination light and switch assembly for a panel of a vehicle is provided. The assembly includes a circuit board having an LED contact and a latch contact. The latch contact is configured to electrically couple to a latch of the panel. A LED is joined to the LED contact. The LED is configured to illuminate at least a portion of the panel. An actuator assembly is moveable toward the circuit board so that the actuator assembly engages the latch contact to operate the latch of the panel when the latch contact is engaged by the actuator assembly.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: August 20, 2013
    Assignee: Tyco Electronics Canada ULC
    Inventors: Kazuhiro Goto, Salvatore Alesio
  • Publication number: 20130143128
    Abstract: Provided are a nonaqueous-electrolyte battery in which short circuits between the positive- and negative-electrode layers can be suppressed with certainty and a method for producing the battery. A nonaqueous-electrolyte battery 100 includes a positive-electrode active-material layer 12 containing a Li-containing oxide; a negative-electrode active-material layer 22 on which deposition of Li metal can occur; and a sulfide-solid-electrolyte layer (SE layer) 3 disposed between these active-material layers 12 and 22. The SE layer 3 of the nonaqueous-electrolyte battery 100 includes a powder-formed layer 31 and a dense-film layer 32 formed on a surface of the powder-formed layer 31 by a vapor-phase process.
    Type: Application
    Filed: August 24, 2011
    Publication date: June 6, 2013
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Yasushi Mochida, Mitsuyasu Ueda, Kentaro Yoshida, Tomoharu Takeyama, Kazuhiro Goto
  • Patent number: 8436545
    Abstract: In a light source apparatus, an alternating current is supplied to a high pressure discharge lamp from a power supply apparatus to light the lamp. The arrangement state of the lamp is detected by a detection circuit. When the lamp is horizontally arranged, electric energy, whose flow direction is from one electrode of the lamp to the other electrode, is set to be approximately the same as electric energy, whose flow direction is from the other electrode to the one electrode. When the lamp is vertically arranged, while a cycle, which is the same as a polarity change cycle in the horizontal arrangement, is maintained, electric energy, which flows from an upper electrode to a lower electrode, is set to be smaller than electric energy, which flows from the lower electrode to the upper electrode.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: May 7, 2013
    Assignee: Ushio Denki Kabushiki Kaisha
    Inventors: Kazuhiro Goto, Takashi Yamashita, Kosuke Saka
  • Patent number: 8410697
    Abstract: A light source device which can also advantageously control the growth of the projection using the DMD type is achieved in a light source device which has an ultrahigh pressure discharge lamp) in which the silica glass discharge vessel is filled with greater than or equal to 0.15 mg/mm3 mercury and bromine; a feed device; an oval reflector; and a color wheel by the electrode on the side of the opening of the oval reflector of the discharge lamp having an increased diameter, and the relation 0.06<W/I2<0.96 between the volume W (mm3) of the tip area with increased diameter and the current value I being satisfied.
    Type: Grant
    Filed: December 13, 2006
    Date of Patent: April 2, 2013
    Assignee: Ushiodenki Kabushiki Kaisha
    Inventors: Kazuhiro Goto, Akihiko Sugitani, Shoichi Terada, Takahiro Toma
  • Publication number: 20130065134
    Abstract: Provided are a Li-ion battery (nonaqueous-electrolyte battery) 100 that includes a positive-electrode active-material layer 12, a negative-electrode active-material layer 22, and a sulfide-solid-electrolyte layer 40 disposed between the active-material layers 12 and 22. The sulfide-solid-electrolyte layer 40 includes a sulfur-added layer 43 in an intermediate portion in the thickness direction of the sulfide-solid-electrolyte layer 40. The sulfur-added layer 43 has a higher content of elemental sulfur than any other portion of the sulfide-solid-electrolyte layer 40. The sulfur-added layer 43 substantially does not have any pin holes.
    Type: Application
    Filed: May 17, 2011
    Publication date: March 14, 2013
    Applicant: Sumitomo Electric Industries, Ltd.
    Inventors: Mitsuyasu Ogawa, Kentaro Yoshida, Nobuhiro Ota, Kazuhiro Goto
  • Patent number: 8378573
    Abstract: A high pressure discharge lamp has an electric discharge container with sealing portions formed at both ends of a light emission section, and electrodes made of tungsten. The electrode has a base end which is buried in the sealing portion. Tips of the electrodes face each other in the light emission section. Purity of the tungsten is 99.99% or more. The electrode has a large diameter portion formed at the tip of the electrode and an axis portion whose diameter is smaller than that of the large diameter portion. A part of a surface of the large diameter portion has a concavo-convex structure where a portion having grooves in a circumference direction and a portion having no groove are asymmetrically formed with respect to an axis of the electrode.
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: February 19, 2013
    Assignee: Ushio Denki Kabushiki Kaisha
    Inventors: Toru Kontani, Kazuhiro Goto
  • Patent number: 8368270
    Abstract: The stator of an electric rotating machine includes a stator core constituted of a plurality of split cores joined to one another in a ring, a plurality of phase windings wound around the stator core, and an outer casing to an inner periphery of which an outer periphery of the stator core is fitted with clamping margin therebetween. The outer casing is provided with a brim including at least two brim portions at least at one of axial ends thereof. The brim portions are spaced from each other in a circumferential direction of the outer casing and project in a direction receding from a center axis of the outer casing.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: February 5, 2013
    Assignees: Denso Corporation, Toyota Jidosha Kabushiki Kaisha
    Inventors: Yuichi Kudose, Hiroaki Ishikawa, Atsuo Ishizuka, Tatsuhiko Mizutani, Kazuhiro Goto
  • Patent number: 8305003
    Abstract: In an ultrahigh pressure mercury lamp that encloses mercury is enclosed in an arc tube, an electrode has a head portion whose diameter is larger than that of an axis portion and a cylindrical portion formed to project from and extend, integrally with a back end face of the head portion, wherein an inner circumference face the cylindrical portion is apart from the axis portion so as to surround the axis portion. During an alternating current lighting, a relational expression of d/(1/f)×1/2?3.8 is satisfied, wherein a frequency, which relates to an anode operation period that is the longest in the anode operation period during which one electrode serves as an anode, is represented as f, and a distance in an axial direction from the leading edge position of the head portion of the electrode to a boundary position between the head portion and the cylindrical portion is represented as d.
    Type: Grant
    Filed: June 24, 2010
    Date of Patent: November 6, 2012
    Assignee: Ushio Denki Kabushiki Kaisha
    Inventors: Kazuhiro Goto, Takashi Yamashita
  • Publication number: 20120228987
    Abstract: A stator core capable of improving stator core segments in assemblability, positioning accuracy and rigidity is provided. A stator core includes a plurality of stator core segments, and a yoke part of each stator core segment has a first junction and a second junction joined to other adjacent stator core segments. A protrusion is formed at the first junction, and a recess capable of receiving the protrusion is formed at the second junction. The opening area of the recess increases from a deepest section of the recess to an opening of the recess. In the yoke part, a first caulking site where the stator core segment is caulked in an axial direction is formed on an arc passing through the central part of a radial length of the protrusion and extending in a circumferential direction.
    Type: Application
    Filed: February 3, 2010
    Publication date: September 13, 2012
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kazuhiro Goto, Tatsuhiko Mizutani, Hiroyuki Ikuta, Yasuhide Yagyu