Patents by Inventor Hiroshi Inagaki

Hiroshi Inagaki 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: 9448136
    Abstract: A sensor control apparatus which receives from a gas sensor (10) a sensor output signal Ip corresponding to the concentration of a specific gas component, and a pressure signal P output from a pressure sensor (20). The sensor control apparatus includes a computation section (38) which computes a specific component concentration which is corrected based on the pressure signal P so as to eliminate the influence of the pressure of the gas. The sensor control apparatus includes response adjustment sections (34) and (36) for adjusting the response rates of the sensor output signal Ip and the pressure signal P before being input to the computation section (38), the response rate exhibiting a time variation of the corresponding signal to a change in the pressure of the gas, such that the response rate of the sensor output signal Ip or the response rate of the pressure signal P, whichever is faster, approaches the slower of the two.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: September 20, 2016
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Yuzo Higuchi, Hiroshi Inagaki
  • Patent number: 9429541
    Abstract: In order to compensate for variation in output of sensor elements 10, there is provided a compensating resistor 220 that has a resistance value reflected by correction information. The resistor 220 is connected in parallel with a VS cell 245 through paired electrode leads 236 and 237 and paired electrode pads 232 and 233. The paired electrode leads 236 and 237 are placed at a position electrically isolated from solid electrolyte substrates 120 and 140.
    Type: Grant
    Filed: March 1, 2011
    Date of Patent: August 30, 2016
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Shin Yoshida, Shigeki Mori, Takeshi Kawai, Hiroshi Inagaki, Seiji Oya, Kentaro Mori
  • Patent number: 9404469
    Abstract: An ignition timing control device (31) has a knocking detection device (41) that detects knocking of internal combustion engine (1) and an ignition timing adjustment device (43) that receives a knocking signal outputted from the knocking detection device (41) and a signal concerning the ignition timing of internal combustion engine (1) outputted from an external electronic control unit (37) and adjusts the ignition timing of internal combustion engine (1) according to the knocking signal and the signal concerning the ignition timing. Further, the knocking detection device (41) and the ignition timing adjustment device (43) are electrically connected and formed integrally with each other.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: August 2, 2016
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventor: Hiroshi Inagaki
  • Publication number: 20160139098
    Abstract: A measurement apparatus includes a plurality of modules and a main unit for collecting measurement data output from the modules. The housing of the main unit can be carried by a user of the measurement apparatus, and the plurality of modules are removably accommodated in the housing. A CAN I/F circuit of the main unit collects the measurement data output from the module accommodated in the housing. A main CPU of the main unit outputs the collected measurement data to, for example, a personal computer connected to the main unit. An internal memory and a USB memory connected to a USB memory module store the collected measurement data.
    Type: Application
    Filed: October 28, 2015
    Publication date: May 19, 2016
    Applicant: NGK SPARK PLUG CO., LTD.
    Inventors: Yoshinori INOUE, Katsunori YAZAWA, Hiroshi INAGAKI, Wenjing MA, Kaoru HISADA, Toshio NAKANISHI
  • Publication number: 20160114449
    Abstract: Maximum values of actual machining allowances of a workpiece in respective cutting flutes are averaged by control amounts of respective cutting flutes calculated by an arithmetic unit. The arithmetic unit converts the calculated control amounts into an amount in each axis direction and subtracts the value from a feed axis command value in an NC program stored in a storage unit. Then, a numeral value control unit performs machining by controlling respective feed axes based on the subtracted feed axis command value.
    Type: Application
    Filed: September 1, 2015
    Publication date: April 28, 2016
    Inventor: Hiroshi INAGAKI
  • Patent number: 9221143
    Abstract: An apparatus includes an external input device that allows setting of the amount of runout and the phase of each cutting edge, a computation device that acquires the rotational phase of a tool and that computes the angular velocity and the phase of vibration of two, X-axis and Y-axis, feed shafts on the basis of the input amount of runout and angular velocity of each cutting edge to generate a feed shaft control signal, and a numerical control device that controls feed in the X-axis and the Y-axis directions. The numerical control device relatively vibrates a workpiece in synchronization with the angular velocity of the tool on the basis of the results of computation performed by the computation device.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: December 29, 2015
    Assignee: Okuma Corporation
    Inventors: Hiroshi Inagaki, Toshiya Shikama
  • Patent number: 9201040
    Abstract: A gas sensor including coating layers (64) and (69) of fluorine or a fluorine compound formed on the surface of a separator (60), including a front separator (61) and a rear separator (66), disposed inside a sheath (30). The coating layers (64) and (69) have water impermeability and water repellency. Even in the case where moisture contained in the atmosphere within a sheath (30) forms dew on the surface of the separator (60), the coating layers (64) and (69) prevent soaking of moisture into the separator (60), to thereby secure the insulation property of the separator (60). Also, the coating layers (64) and (69) having water repellency prevent a water droplet from spreading on the surface of the separator (60) with resultant formation of a film of water, to thereby prevent flow of leakage current via a film of water.
    Type: Grant
    Filed: July 5, 2011
    Date of Patent: December 1, 2015
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Yuichi Yamada, Takahiro Akiyama, Takuya Saito, Makoto Kume, Satoshi Teramoto, Noboru Matsui, Hiroshi Inagaki, Takeshi Kawai, Shinichiro Iwama
  • Patent number: 9174318
    Abstract: A machine tool includes a rotational drive unit that rotationally drives a main spindle to which a tool is attached, a moving unit that relatively moves the tool with respect to the workpiece, and a rotational speed adjustment unit that adjusts a rotational speed of the main spindle by controlling the rotational drive unit. The machine tool also includes a machining start determination unit that determines that machining of the workpiece by the tool is started with the rotational drive unit rotationally driving the main spindle. The rotational speed adjustment unit exponentially raises the rotational speed of the main spindle after reducing the rotational speed to a predetermined rotational speed set in advance, on condition that the machining start determination unit determines that the machining is started, and causes the rotational speed of the main spindle to reach a value of the rotational speed before being reduced.
    Type: Grant
    Filed: June 10, 2014
    Date of Patent: November 3, 2015
    Assignee: Okuma Corporation
    Inventor: Hiroshi Inagaki
  • Patent number: 9136252
    Abstract: A semiconductor device includes a substrate having a first surface, a height adjuster mounted on the first surface of the substrate via a first adhesive layer, a semiconductor chip mounted on the height adjuster via a second adhesive layer, an electronic component mounted on the first surface of the substrate via a third adhesive layer, a bonding wire, and a sealing member. The length of the electronic component in a first direction corresponding to the thickness direction of the substrate is larger than the length of the semiconductor chip in the first direction, and the sum of the lengths of the height adjuster, the second adhesive layer, and the semiconductor chip in the first direction is larger than the length of the electronic component in the first direction.
    Type: Grant
    Filed: August 30, 2013
    Date of Patent: September 15, 2015
    Assignee: Kabushiki Kaishi Toshiba
    Inventors: Akihiro Iida, Akihito Ishimura, Hiroshi Inagaki
  • Publication number: 20150233338
    Abstract: The present invention provides an ignition timing control device and an ignition system which are capable of performing ignition timing control that easily suppresses occurrence of knocking for internal combustion engine. An ignition timing control device has a knocking detection device 41 detecting knocking of internal combustion engine; and an ignition timing adjustment device 43 adjusting ignition timing of internal combustion engine according to a knocking signal obtained from knocking detection device 41 and indicating knocking state and an externally-obtained signal concerning the ignition timing of the internal combustion engine. Knocking detection device 41 and ignition timing adjustment device 43 are electrically connected and formed integrally with each other.
    Type: Application
    Filed: September 23, 2013
    Publication date: August 20, 2015
    Applicant: NGK SPARK PLUG CO., LTD.
    Inventors: Isao Suzuki, Katsunori Yazawa, Hiroshi Inagaki
  • Publication number: 20150068896
    Abstract: A gas sensor control device (2) includes a digital control unit (31) (CPU 91 in detail) functioning as a digital filter unit (99). Even when high-frequency noise components are superimposed on an electrical signal transmitted to a digital control unit (31) from the electromotive force cell (24), the high-frequency noise components are eliminated by the digital filter unit (99). Therefore, a terminal voltage Vs across both terminals of the electromotive force cell (24) generated according to oxygen concentration can be suitably extracted. The digital control unit (31) can suitably perform feedback control of the pump current Ip based on the terminal voltage Vs generated across both terminals of the electromotive force cell (24) while suppressing the influence of high-frequency noise components.
    Type: Application
    Filed: September 9, 2014
    Publication date: March 12, 2015
    Applicant: NGK SPARK PLUG CO., LTD.
    Inventor: Hiroshi INAGAKI
  • Patent number: 8959988
    Abstract: In an oxygen sensor control apparatus, a CPU obtains a correction coefficient for calibrating the relation between output value of an oxygen sensor and oxygen concentration when a fuel cut operation is performed. When the amount of scavenging air (total supply amount of air) becomes equal to or greater than a predetermined amount in each fuel cut period, the CPU calculates an average output value Ipav from a plurality of output values (concentration corresponding values) Ipr of the oxygen sensor, from which values deviating from a predetermined range R1 have been removed. Subsequently, the CPU averages the values obtained in a plurality of fuel cut periods to thereby obtain a plural-time average output value Ipavf. The CPU obtains a correction coefficient for correcting the actual output value Ip of the oxygen sensor 20 on the basis of the Ipavf value and a previously set reference output value.
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: February 24, 2015
    Assignee: NGK Spark Plug Co., Ltd.
    Inventors: Hiroshi Inagaki, Kentaro Mori
  • Publication number: 20150027409
    Abstract: An ignition timing control device (31) has a knocking detection device (41) that detects knocking of internal combustion engine (1) and an ignition timing adjustment device (43) that receives a knocking signal outputted from the knocking detection device (41) and a signal concerning the ignition timing of internal combustion engine (1) outputted from an external electronic control unit (37) and adjusts the ignition timing of internal combustion engine (1) according to the knocking signal and the signal concerning the ignition timing. Further, the knocking detection device (41) and the ignition timing adjustment device (43) are electrically connected and formed integrally with each other.
    Type: Application
    Filed: June 7, 2013
    Publication date: January 29, 2015
    Applicant: NGK SPARK PLUG CO., LTD.
    Inventor: Hiroshi Inagaki
  • Publication number: 20150022134
    Abstract: A machine tool includes a rotational drive unit that rotationally drives a main spindle to which a tool is attached, a moving unit that relatively moves the tool with respect to the workpiece, and a rotational speed adjustment unit that adjusts a rotational speed of the main spindle by controlling the rotational drive unit. The machine tool also includes a machining start determination unit that determines that machining of the workpiece by the tool is started with the rotational drive unit rotationally driving the main spindle. The rotational speed adjustment unit exponentially raises the rotational speed of the main spindle after reducing the rotational speed to a predetermined rotational speed set in advance, on condition that the machining start determination unit determines that the machining is started, and causes the rotational speed of the main spindle to reach a value of the rotational speed before being reduced.
    Type: Application
    Filed: June 10, 2014
    Publication date: January 22, 2015
    Inventor: Hiroshi INAGAKI
  • Patent number: 8877024
    Abstract: [Objective] An object is to provide a sensor control apparatus and a sensor-control-apparatus control method which can reduce variation in startup time among a plurality of times of execution of detection processing, in consideration of variation in output characteristic among a plurality of gas sensors. [Means for Solution] In a sensor control apparatus, before drive control (S55 to S80) is started, preliminary control is executed so as to supply a constant current to a second oxygen pump cell over a constant time, to thereby control to a constant level the amount of oxygen pumped from a second measurement chamber to the outside of the second measurement chamber (S40 to 50). The preliminary control is executed under control conditions of the sensor control apparatus which are determined for each gas sensor and are associated with the amount of oxygen pumped from the second measurement chamber to the outside thereof.
    Type: Grant
    Filed: December 1, 2010
    Date of Patent: November 4, 2014
    Assignee: NGK Spark Plug Co., Ltd.
    Inventors: Takeshi Kawai, Hiroshi Inagaki, Koji Shiotani, Hirotaka Onogi, Satoshi Teramoto
  • Publication number: 20140290347
    Abstract: A sensor control apparatus which receives from a gas sensor (10) a sensor output signal Ip corresponding to the concentration of a specific gas component, and a pressure signal P output from a pressure sensor (20). The sensor control apparatus includes a computation section (38) which computes a specific component concentration which is corrected based on the pressure signal P so as to eliminate the influence of the pressure of the gas. The sensor control apparatus includes response adjustment sections (34) and (36) for adjusting the response rates of the sensor output signal Ip and the pressure signal P before being input to the computation section (38), the response rate exhibiting a time variation of the corresponding signal to a change in the pressure of the gas, such that the response rate of the sensor output signal Ip or the response rate of the pressure signal P, whichever is faster, approaches the slower of the two.
    Type: Application
    Filed: March 25, 2014
    Publication date: October 2, 2014
    Applicant: NGK SPARK PLUG CO., LTD.
    Inventors: Yuzo HIGUCHI, Hiroshi INAGAKI
  • Publication number: 20140197550
    Abstract: A semiconductor device includes a substrate having a first surface, a height adjuster mounted on the first surface of the substrate via a first adhesive layer, a semiconductor chip mounted on the height adjuster via a second adhesive layer, an electronic component mounted on the first surface of the substrate via a third adhesive layer, a bonding wire, and a sealing member. The length of the electronic component in a first direction corresponding to the thickness direction of the substrate is larger than the length of the semiconductor chip in the first direction, and the sum of the lengths of the height adjuster, the second adhesive layer, and the semiconductor chip in the first direction is larger than the length of the electronic component in the first direction.
    Type: Application
    Filed: August 30, 2013
    Publication date: July 17, 2014
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Akihiro IIDA, Akihito ISHIMURA, Hiroshi INAGAKI
  • Patent number: 8741118
    Abstract: A sensor control apparatus includes: a gas sensor including an oxygen concentration detection cell having a first solid electrolyte body, a reference electrode and a detection electrode, and a heater; an electric current supply unit that supplies electric current to the oxygen concentration detecting cell; an activation determination unit; a heater control unit that sets a first target temperature equal to or higher than an activation determination temperature when the activation determination unit determines that the temperature of the gas sensor is equal to or higher than the activation determination temperature; an automatic stop detection unit; and a first temperature switching unit that controls electric current supplied to the heater such that the target temperature of the heater is switched to a second target temperature different from a temperature at which blackening is generated in the first solid electrolyte body when an automatic stop is detected.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: June 3, 2014
    Assignee: NGK Spark Plug Co., Ltd.
    Inventor: Hiroshi Inagaki
  • Patent number: 8700201
    Abstract: A vibration suppressing device includes a memory unit storing a stable rotation speed calculated by an arithmetical unit in association with a rotation speed range that includes the stable rotation speed, in which, when a command rotation speed that is a rotation speed of a rotary shaft is inputted in starting machining operation by rotation of the rotary shaft and, the arithmetical unit determines whether the command rotation speed is included in the rotation speed range or not, reads out the stable rotation speed when the command rotation speed is included in the rotation speed range and outputs the stable rotation speed to an NC device instead of the command rotation speed, and starts the machining operation at the stable rotation speed.
    Type: Grant
    Filed: September 6, 2011
    Date of Patent: April 15, 2014
    Assignee: Okuma Corporation
    Inventors: Kiyoshi Yoshino, Hiroshi Inagaki, Tomoharu Ando, Hiroshi Ueno, Akihide Hamaguchi, Hajimu Ishii
  • Publication number: 20130309034
    Abstract: An apparatus includes an external input device that allows setting of the amount of runout and the phase of each cutting edge, a computation device that acquires the rotational phase of a tool and that computes the angular velocity and the phase of vibration of two, X-axis and Y-axis, feed shafts on the basis of the input amount of runout and angular velocity of each cutting edge to generate a feed shaft control signal, and a numerical control device that controls feed in the X-axis and the Y-axis directions. The numerical control device relatively vibrates a workpiece in synchronization with the angular velocity of the tool on the basis of the results of computation performed by the computation device.
    Type: Application
    Filed: March 11, 2013
    Publication date: November 21, 2013
    Applicant: OKUMA CORPORATION
    Inventors: Hiroshi INAGAKI, Toshiya SHIKAMA