Patents by Inventor Satoshi Ishikawa
Satoshi Ishikawa 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: 8305084Abstract: A voltage measuring apparatus measures an output voltage of an assembled battery in which a plurality of unit cells are connected in series and are divided into a plurality of blocks. The apparatus includes: a block voltage detection section which detects a voltage of at least one of the plurality of blocks and provides an analog voltage signal; a reference power supply which generates a reference voltage; a sampling voltage generation section which generates a sampling voltage based on the reference voltage; a storage for storing voltage date corresponding to the sampling voltage; and an A/D conversion section of the block voltage detection section that digitizes the sampling voltage with the reference voltage for A/D conversion. A difference between the digitized sampling voltage and the voltage data is calculated and it is determined that abnormality occurs in the A/D conversion section when the difference is larger than a threshold.Type: GrantFiled: August 9, 2010Date of Patent: November 6, 2012Assignee: Yazaki CorporationInventors: Satoshi Ishikawa, Kimihiro Matsuura, Masashi Sekizaki
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Patent number: 8294423Abstract: A voltage measuring device includes a current detecting section that detects a charging or discharging current of a multiple-set battery; block voltage detecting sections that detect voltages of a plurality blocks respectively; and a control section that outputs a request to the block voltage detecting sections via a first communication line to acquire voltage data. Each of the block voltage detecting sections includes an active power source and a lower-power source. The control section transmits a low-power consumption mode setting signal to the block voltage detecting sections respectively when the charging or discharging current has not been detected by the current detecting section for a first time period. Each of the block voltage detecting sections switches an operating mode from a normal mode to a low-power consumption mode when the low-power consumption mode setting signal is received.Type: GrantFiled: June 29, 2010Date of Patent: October 23, 2012Assignee: Yazaki CorporationInventors: Satoshi Ishikawa, Kimihiro Matsuura, Masashi Sekizaki
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Patent number: 8283894Abstract: There is provided a voltage measuring apparatus for measuring a voltage of an assembled battery in which a plurality of unit cells are connected in series. The voltage measuring apparatus comprises: block voltage detection sections, each section measuring a voltage of each block of a plurality of blocks into which the plurality of unit cells are divided; a reference voltage output section provided in each of the voltage detection sections to output a reference voltage; a difference voltage calculating section which calculates a difference voltage between measured values of the reference voltages measured by two block voltage detection sections; a difference voltage determination section which determines whether each of the difference voltages exceeds a given threshold voltage or not; and an abnormality determination section which determines that abnormality occurs in the voltage measuring apparatus when at least one of the difference voltages is determined as greater than the threshold voltage.Type: GrantFiled: June 15, 2010Date of Patent: October 9, 2012Assignee: Yazaki CorporationInventors: Kimihiro Matsuura, Satoshi Ishikawa, Masashi Sekizaki, Masahiro Hasegawa
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Patent number: 8278878Abstract: A voltage detection apparatus includes: a battery including a plurality of unit cells mutually connected in series; a plurality of blocks, each block including at least one of the plurality of unit cells; a plurality of voltage detectors, each detector connected to respective one of the blocks, and detecting a voltage between both ends of the unit cell in the one of the blocks; a plurality of reference power sources, each source connected to respective one of the voltage detectors, and at least one of the reference power sources having higher accuracy than the other reference power sources; and a correcting unit which corrects a detection result of the voltage detector which is connected to the other reference power source on the basis of a detection result of the voltage detector which is connected to the reference power source with the higher accuracy.Type: GrantFiled: July 20, 2009Date of Patent: October 2, 2012Assignee: Yazaki CorporationInventors: Satoshi Ishikawa, Kimihiro Matsuura, Ryosuke Kawano
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Patent number: 8278794Abstract: The rotor 11 of an axial gap type motor 10 is provided with a plurality of main magnets 41 respectively magnetized in an axial direction of a rotational axis and disposed at predetermined intervals in a peripheral direction, a plurality of yokes 42 structured by a laminated member 71 produced by winding a tape-shaped electromagnetic steel plate 60 and respectively disposed on both sides of the main magnets 41 in the axial direction, and a rotor frame 30 made of a die-cast alloy and including a plurality of ribs 31 respectively interposed between the main magnets 41 adjoining each other in the peripheral direction and extending in the radial direction, and an inner cylindrical portion 32 and an outer cylindrical portion 33 respectively formed on the radially inner side of the ribs 31 and on the radially outer side of the ribs 31.Type: GrantFiled: October 29, 2009Date of Patent: October 2, 2012Assignee: Honda Motor Co., Ltd.Inventors: Satoshi Ishikawa, Keiichi Yamamoto, Shoei Abe
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Publication number: 20120239271Abstract: A sensor control apparatus including a gas sensor having a sensor element, a housing and a base part formed of a resin. The apparatus includes a heating part and a control part. When the control part determines that a predetermined automatic stop condition has been satisfied, the control part switches from a control for maintaining the temperature of the sensor element at an activating temperature to a control in a stop state for reducing at least one of voltage and current supplied to the heating part so as to set a temperature of the base part to a value equal to or lower than a shape holding temperature of the resin. Also disclosed is a sensor control method for holding a temperature of a sensor element to an activating temperature.Type: ApplicationFiled: March 14, 2012Publication date: September 20, 2012Applicant: NGK SPARK PLUG CO, LTD.Inventors: Tomohiro Tajima, Satoshi Ishikawa, Kunihiko Yonezu
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Patent number: 8269460Abstract: A switch element is configured to decrease an impedance of a voltage-detection integrated circuit that detect voltage between both ends of unit cells of a higher-ordered battery block, for adjacently-connected pair of the higher-ordered battery block and a lower-ordered battery block. The voltage-detection integrated circuit is configured to detect disconnection of an electrical wire when voltage between both ends of a lowest-ordered unit cell that is detected with the switch element turned on is equal to or lower than a threshold.Type: GrantFiled: June 8, 2010Date of Patent: September 18, 2012Assignee: Yazaki CorporationInventors: Satoshi Ishikawa, Kimihiro Matsuura
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Publication number: 20120217464Abstract: A nonvolatile storage device is formed by laminating a plurality of memory cell arrays, the memory cell array including a plurality of word lines, a plurality of bit lines, and memory cells. The memory cell includes a current rectifying device and a variable resistance device, the variable resistance device includes a lower electrode, an upper electrode, and a resistance change layer including a conductive nano material formed between the lower electrode and the upper electrode, one of the variable resistance devices provided adjacent to each other in the laminating direction has titanium oxide (TiOx) between the resistance change layer and the lower electrode serving as a cathode, the other of the variable resistance devices provided adjacent to each other in the laminating direction has titanium oxide (TiOx) between the resistance change layer and the upper electrode serving as a cathode.Type: ApplicationFiled: February 24, 2012Publication date: August 30, 2012Applicant: Kabushiki Kaisha ToshibaInventors: Shigeki Kobayashi, Kazuhiko Yamamoto, Kenji Aoyama, Shigeto Oshino, Kei Watanabe, Shinichi Nakao, Satoshi Ishikawa, Takeshi Yamaguchi
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Publication number: 20120205609Abstract: According to one embodiment, a memory device includes a lower electrode layer, a nanomaterial assembly layer, a protective layer and an upper electrode layer. The nanomaterial assembly layer is provided on the lower electrode layer and includes a plurality of fine conductors assembled via a gap. The protective layer is provided on the nanomaterial assembly layer, is conductive, is in contact with the fine conductors, and includes an opening. The upper electrode layer is provided on the protective layer and is in contact with the protective layer.Type: ApplicationFiled: September 19, 2011Publication date: August 16, 2012Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Shigeto OSHINO, Kenji Aoyama, Kazuhiko Yamamoto, Shinichi Nakao, Kei Watanabe, Satoshi Ishikawa
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Patent number: 8225624Abstract: A compressor (20) is provided with compression mechanisms (61, 62) to have four compression chambers (61, 62, 63, 64) in total. In the compressor (20), the first compression chamber (61) and the second compression chamber (62) differ in the phase of capacity changing cycle from each other by 180° and the third compression chamber (63) and the fourth compression chamber (64) also differ in the phase of capacity changing cycle from each other by 180°. In a cylinder nonoperating mode, refrigerant is compressed in a single stage in each of the first compression chamber (61) and the second compression chamber (62) while the refrigerant compression operation is halted in the third compression chamber (63) and the fourth compression chamber (64). In a two-stage compression mode, refrigerant compressed in a single stage in each of the first compression chamber (61) and the second compression chamber (62) is further compressed in the third compression chamber (63) and the fourth compression chamber (64).Type: GrantFiled: March 6, 2007Date of Patent: July 24, 2012Assignee: Daikin Industries, Ltd.Inventors: Takahiro Yamaguchi, Satoshi Ishikawa, Masahiro Yamada, Kazuhiro Furusho
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Patent number: 8184784Abstract: A novel data communication device includes a switching mechanism, a detector, a storage, a measuring unit, a comparator, and a controller. In at least one embodiment, the switching mechanism is configured to connect and disconnect a facsimile device to and from a communication line used in common by the data communication device and the facsimile device. The detector is configured to detect an off-hook state of the facsimile device. The storage is configured to store a delay time. The measuring unit is configured to measure a reference time and a dialing detection time. The comparator is configured to compare the reference time and the dialing detection time. The controller is configured to enable or disable a facsimile priority function depending on whether or not the reference time and the dialing detection time are substantially equal to each other.Type: GrantFiled: May 23, 2007Date of Patent: May 22, 2012Assignee: Ricoh Company, Ltd.Inventor: Satoshi Ishikawa
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Publication number: 20120104352Abstract: According to one embodiment, a memory device includes a nanomaterial assembly layer, a first electrode layer and a second electrode layer. The nanomaterial assembly layer is formed of an assembly of a plurality of micro conductors via gaps between the micro conductors. The first electrode layer is provided on the nanomaterial assembly layer. The second electrode layer is provided on the first electrode layer.Type: ApplicationFiled: March 21, 2011Publication date: May 3, 2012Applicant: Kabushiki Kaisha ToshibaInventors: Kenji AOYAMA, Kazuhiko Yamamoto, Satoshi Ishikawa, Shigeto Oshino
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Patent number: 8156790Abstract: The present invention provides a sensor capable of maintaining an electrical connection between the lead frame and an electrode terminal section of the detection element even when an inadequate external force is applied to a lead frame and a sensor production method capable of preventing the lead frame from buckling and being deformed into an inadequate shape. The lead frame (second lead frame) can inhibit movement of a second frame main body section axially toward a rear end side through engagement of a third locking surface of a second locking section with a second locking groove and can inhibit the second frame main body section from going apart from an inner surface of an insertion hole through engagement of a fourth locking surface of the second frame locking section, which faces an element engagement section side.Type: GrantFiled: November 6, 2008Date of Patent: April 17, 2012Assignee: NGK Spark Plug Co., LtdInventors: Kouji Matsuo, Satoshi Ishikawa
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Patent number: 8154300Abstract: In a voltage measuring device, according to a setting of input terminals for setting the number of unit cells to be measured SEL1, SEL2, SEL3, a logic circuit turns on switches in a switching circuit connected to the unit cells to measure a voltage across each unit cell.Type: GrantFiled: February 27, 2008Date of Patent: April 10, 2012Assignee: Yazaki CorporationInventors: Manabu Ooishi, Satoshi Ishikawa
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Patent number: 8140281Abstract: The present invention is to provide inexpensively a voltage detecting device for setting an address of each voltage detection IC even if a power source level of each voltage detection IC differs. A first transmitting line LT1 and a first receiving line LR1 connect a plurality of voltage detection ICs in series each other, and connect between the bottom voltage detection IC and the main microcomputer. The main microcomputer transmits an address number 0 to the bottom voltage detection IC. When the respective voltage detection ICs receive an address number through the first receiving line of a lower side from the main microcomputer, an address number adding 1 to the received address number is set as a self-address number. Furthermore, the respective voltage detection ICs transmit the address number which adds 1 to the received address number to the first transmitting line LT1 of an upper side.Type: GrantFiled: December 17, 2008Date of Patent: March 20, 2012Assignee: Yazaki CorporationInventors: Satoshi Ishikawa, Kimihiro Matsuura, Masashi Sekizaki
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Publication number: 20120056145Abstract: According to one embodiment, a nonvolatile memory device includes a selection element layer and a nanomaterial aggregate layer. The selection element layer includes silicon. The nanomaterial aggregate layer is stacked on the selection element layer. The nanomaterial aggregate layer includes a plurality of micro conductive bodies and fine particles dispersed in a plurality of gaps between the micro conductive bodies. At least a surface of the fine particle is made of an insulating material other than silicon oxide.Type: ApplicationFiled: February 1, 2011Publication date: March 8, 2012Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Kenji AOYAMA, Kazuhiko Yamamoto, Satoshi Ishikawa, Shigeto Oshino
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Publication number: 20120044972Abstract: A temperature sensor (100) includes a heat-sensitive element (21) having a thermistor sintered-body (22), an insulating support (31), an insulation sheath (41) and a housing tube (11). The insulating support (31) is in contact with the rear end of the heat-sensitive element (21) and the insulation sheath (41) is in contact with the rear end of the insulating support (31). The housing tube (11) accommodates the heat-sensitive element (21), the insulating support (31) and the insulation sheath (41). The housing tube (11) includes a sheath accommodation portion (14) which accommodates the insulation sheath (41) and a distal accommodation portion (13). The distal accommodation portion (13) is located toward the distal end of the housing tube (11) with respect to the sheath accommodation portion (14), is smaller in outside diameter than the sheath accommodation portion (14), and accommodates at least half of the insulating support (31) as measured from the axially distal end of the insulating support (31).Type: ApplicationFiled: August 18, 2011Publication date: February 23, 2012Applicant: NGK SPARK PLUG CO., LTD.Inventors: Masamichi ITO, Koji MATSUO, Satoshi ISHIKAWA
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Publication number: 20120020385Abstract: A sensor (101) is configured such that a seal member (71) is provided in a deformed manner through crimping of a portion of a tube (11) located toward a rear end (17c) of the tube (11). The seal member (71) is deformed such that a frontward-oriented surface (75), which is a bottom surface of a recess (74) formed in a front end (73) of the seal member (72), presses a rear end (45) of an insulation sheath (41) frontward. Consequently, a front end (21a) of a sensor element is pressed against a front end (12) of the tube (11) via the insulation sheath (41). By virtue of a pressing action induced by rubber-like elasticity, high sensor responsiveness is maintained over a long period of time.Type: ApplicationFiled: July 20, 2011Publication date: January 26, 2012Applicant: NGK SPARK PLUG CO., LTD.Inventors: Kouji MATSUO, Satoshi Ishikawa, Masamichi Ito, Satoshi Mogari
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Patent number: 8102153Abstract: The battery voltage adjusting device includes: a voltage detecting means provided corresponding to a block including at least one unit cell of an on-vehicle high voltage battery consisting of a plurality of the unit cells connected in series and detecting a terminal voltage of the unit cell in the block; a charge-discharge means charging or discharging the unit cell in the block on the basis of the terminal voltage of the unit cell detected by the voltage detecting means; a temperature detecting means detecting a temperature of the unit cell; and a changing means changing a time period, from a time point when the charge-discharge means finishes to charge or discharge the unit cell to a time point when the voltage detecting means detects the terminal voltage of the unit cell, on the basis of the temperature of the unit cell detected by the temperature detecting means.Type: GrantFiled: July 30, 2008Date of Patent: January 24, 2012Assignee: Yazaki CorporationInventors: Satoshi Ishikawa, Tsutomu Saigo
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Patent number: 8011198Abstract: To reduce a leakage current when a motor for driving a compressor is energized, with the compressor unoperated. Setting the carrier frequency of an inverter at a value lower than that used during normal operation to cause phase interruption electrification of the motor.Type: GrantFiled: April 22, 2005Date of Patent: September 6, 2011Assignee: Daikin Industries, Ltd.Inventors: Satoshi Ishikawa, Takeshi Hikawa, Toshiyuki Maeda, Sumikazu Matsuno