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: 9448136Abstract: 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: GrantFiled: March 25, 2014Date of Patent: September 20, 2016Assignee: NGK SPARK PLUG CO., LTD.Inventors: Yuzo Higuchi, Hiroshi Inagaki
-
Patent number: 9429541Abstract: 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: GrantFiled: March 1, 2011Date of Patent: August 30, 2016Assignee: NGK SPARK PLUG CO., LTD.Inventors: Shin Yoshida, Shigeki Mori, Takeshi Kawai, Hiroshi Inagaki, Seiji Oya, Kentaro Mori
-
Patent number: 9404469Abstract: 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: GrantFiled: June 7, 2013Date of Patent: August 2, 2016Assignee: NGK SPARK PLUG CO., LTD.Inventor: Hiroshi Inagaki
-
Publication number: 20160139098Abstract: 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: ApplicationFiled: October 28, 2015Publication date: May 19, 2016Applicant: NGK SPARK PLUG CO., LTD.Inventors: Yoshinori INOUE, Katsunori YAZAWA, Hiroshi INAGAKI, Wenjing MA, Kaoru HISADA, Toshio NAKANISHI
-
Publication number: 20160114449Abstract: 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: ApplicationFiled: September 1, 2015Publication date: April 28, 2016Inventor: Hiroshi INAGAKI
-
Patent number: 9221143Abstract: 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: GrantFiled: March 11, 2013Date of Patent: December 29, 2015Assignee: Okuma CorporationInventors: Hiroshi Inagaki, Toshiya Shikama
-
Patent number: 9201040Abstract: 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: GrantFiled: July 5, 2011Date of Patent: December 1, 2015Assignee: 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: 9174318Abstract: 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: GrantFiled: June 10, 2014Date of Patent: November 3, 2015Assignee: Okuma CorporationInventor: Hiroshi Inagaki
-
Patent number: 9136252Abstract: 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: GrantFiled: August 30, 2013Date of Patent: September 15, 2015Assignee: Kabushiki Kaishi ToshibaInventors: Akihiro Iida, Akihito Ishimura, Hiroshi Inagaki
-
Publication number: 20150233338Abstract: 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: ApplicationFiled: September 23, 2013Publication date: August 20, 2015Applicant: NGK SPARK PLUG CO., LTD.Inventors: Isao Suzuki, Katsunori Yazawa, Hiroshi Inagaki
-
Publication number: 20150068896Abstract: 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: ApplicationFiled: September 9, 2014Publication date: March 12, 2015Applicant: NGK SPARK PLUG CO., LTD.Inventor: Hiroshi INAGAKI
-
Patent number: 8959988Abstract: 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: GrantFiled: June 22, 2012Date of Patent: February 24, 2015Assignee: NGK Spark Plug Co., Ltd.Inventors: Hiroshi Inagaki, Kentaro Mori
-
Publication number: 20150027409Abstract: 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: ApplicationFiled: June 7, 2013Publication date: January 29, 2015Applicant: NGK SPARK PLUG CO., LTD.Inventor: Hiroshi Inagaki
-
Publication number: 20150022134Abstract: 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: ApplicationFiled: June 10, 2014Publication date: January 22, 2015Inventor: Hiroshi INAGAKI
-
Patent number: 8877024Abstract: [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: GrantFiled: December 1, 2010Date of Patent: November 4, 2014Assignee: NGK Spark Plug Co., Ltd.Inventors: Takeshi Kawai, Hiroshi Inagaki, Koji Shiotani, Hirotaka Onogi, Satoshi Teramoto
-
Publication number: 20140290347Abstract: 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: ApplicationFiled: March 25, 2014Publication date: October 2, 2014Applicant: NGK SPARK PLUG CO., LTD.Inventors: Yuzo HIGUCHI, Hiroshi INAGAKI
-
Publication number: 20140197550Abstract: 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: ApplicationFiled: August 30, 2013Publication date: July 17, 2014Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Akihiro IIDA, Akihito ISHIMURA, Hiroshi INAGAKI
-
Patent number: 8741118Abstract: 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: GrantFiled: December 21, 2010Date of Patent: June 3, 2014Assignee: NGK Spark Plug Co., Ltd.Inventor: Hiroshi Inagaki
-
Patent number: 8700201Abstract: 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: GrantFiled: September 6, 2011Date of Patent: April 15, 2014Assignee: Okuma CorporationInventors: Kiyoshi Yoshino, Hiroshi Inagaki, Tomoharu Ando, Hiroshi Ueno, Akihide Hamaguchi, Hajimu Ishii
-
Publication number: 20130309034Abstract: 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: ApplicationFiled: March 11, 2013Publication date: November 21, 2013Applicant: OKUMA CORPORATIONInventors: Hiroshi INAGAKI, Toshiya SHIKAMA