Patents by Inventor Kenichi Machida

Kenichi Machida 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).

  • Publication number: 20240013779
    Abstract: An information-processing apparatus comprises: an identification unit configured to identify at least one of important matters, depending on inquiry contents from a first speaker to a second speaker in a conversation among multiple persons, the at least one of the important matters being matters that the second speaker is to explain to or confirm with the first speaker; and a presentation unit configured to present to the second speaker the at least one of the important matters that has been identified.
    Type: Application
    Filed: January 14, 2022
    Publication date: January 11, 2024
    Applicant: NTT TechnoCross Corporation
    Inventors: Kenichi MACHIDA, Kazuhira MATSUI, Asato TANAKA
  • Publication number: 20240012994
    Abstract: An information processing device according to at least one embodiment has a specifying unit configured to specify the setting range for setting time-stamping, based on the content of a conversation between a plurality of people, the setting range being part or all of conversation data that represents the conversation, and a setting unit configured to set time-stamping for the specified setting range.
    Type: Application
    Filed: January 14, 2022
    Publication date: January 11, 2024
    Applicant: NTT TechnoCross Corporation
    Inventors: Kenichi MACHIDA, Kazuhira MATSUI, Asato TANAKA
  • Patent number: 10589355
    Abstract: An improvement of coercive force of Nd—Fe—B base sintered magnet can be realized while suppressing a decrease in remanent magnetic flux density to the minimum using a method for modifying grain boundary which comprises heat-treating an Nd—Fe—B base magnet with a specific alloy disposed on its surface, the alloy having the following Formula 1: RxAyBz??(1) wherein R represents at least one rare earth element including Sc and Y, A represents Ca or Li, B represents an unavoidable impurity, and 2?x?99, 1?y<x, and 0?z<y.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: March 17, 2020
    Assignees: Nissan Motor Co., Ltd., Osaka University
    Inventors: Masaru Uenohara, Takashi Furuya, Koichi Nakazawa, Shinichirou Fujikawa, Seiji Kawai, Kenichi Machida, Genya Yamato
  • Publication number: 20180326489
    Abstract: An improvement of coercive force of Nd—Fe—B base sintered magnet can be realized while suppressing a decrease in remanent magnetic flux density to the minimum using a method for modifying grain boundary which comprises heat-treating an Nd—Fe—B base magnet with a specific alloy disposed on its surface, the alloy having the following Formula 1: RxAyBz??(1) wherein R represents at least one rare earth element including Sc and Y, A represents Ca or Li, B represents an unavoidable impurity, and 2?x?99, 1?y<x, and 0?z<y.
    Type: Application
    Filed: October 12, 2016
    Publication date: November 15, 2018
    Applicants: Nissan Motor Co., Ltd., Osaka University
    Inventors: Masaru Uenohara, Takashi Furuya, Koichi Nakazawa, Shinichirou Fujikawa, Seiji Kawai, Kenichi Machida, Genya Yamato
  • Patent number: 9534554
    Abstract: A fuel injection amount calculation method calculates a fuel injection amount to an internal combustion engine of a vehicle. The method can include calculating a relative intake pressure which is a difference between an intake pressure peak of intake air upon intake starting of a cylinder of the internal combustion engine and an intake pressure bottom of the intake air upon intake ending. The method can also include calculating the fuel injection amount based on the relative intake pressure.
    Type: Grant
    Filed: June 18, 2012
    Date of Patent: January 3, 2017
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Satoru Okoshi, Kenichi Machida, Takahiro Kitamura
  • Patent number: 9347341
    Abstract: An apparatus for controlling a variable valve timing mechanism includes an electronic controller which includes a microcomputer converges a valve timing of a variable valve timing mechanism to a target changing amount based on a deviation between the target changing amount and an output of a sensor for detecting a changing amount of the valve timing.
    Type: Grant
    Filed: September 16, 2013
    Date of Patent: May 24, 2016
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Nobuhiko Matsuo, Kenichi Machida
  • Patent number: 9188078
    Abstract: An object of the present invention is to obtain a control apparatus of an internal combustion engine capable of respectively accurately detecting a combustion change in a plurality of combustion modes. In the present invention, the control apparatus of the internal combustion engine operable upon switching the combustion mode sets a detection time and a detection duration to detect a sensor signal of a crank angle sensor 10 in accordance with the combustion mode, and determines whether or not there is the combustion change based on the sensor signal detected by the crank angle sensor 10 at the detection time and for the detection duration set by the control apparatus.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: November 17, 2015
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Kenichiroh Ogata, Kenichi Machida
  • Patent number: 9151234
    Abstract: An engine control apparatus includes a control unit configured to perform a feedback control based on a second amount of intake air until a engine speed reaches a target idle speed. The engine control apparatus then regulates the amount of intake air to an amount smaller than a predetermined second amount of intake air for a predetermined period when the engine speed exceeds the target idle speed, and then performs a feedback control based on a first amount of intake air. Such engine control apparatus minimizes variation in engine speed by reducing a convergence time of the engine speed to a target idle speed in switching control of the amount of intake air in a case where engine friction at a low temperature is high.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: October 6, 2015
    Assignee: Honda Motor Co., Ltd.
    Inventors: Masanori Nakamura, Kenichi Machida
  • Patent number: 9121361
    Abstract: In an aspect of the present invention, each of plural control units which controls drive of an electric actuator diagnoses existence of abnormality in drive control of the electric actuator, the abnormality differing from control unit to control unit; the control unit transmits diagnostic result thereof to another control unit; the control unit outputs an abnormal determination signal as a signal indicating diagnostic result therefrom when at least one of the diagnostic result thereof and the diagnostic result of another control unit indicates abnormality; and the control unit transfers the drive control of the electric actuator to an abnormal use control state when the abnormal determination signal is output from at least one of the plural control units.
    Type: Grant
    Filed: September 11, 2008
    Date of Patent: September 1, 2015
    Assignee: HITACHI, LTD.
    Inventors: Hirokazu Shimizu, Kenichi Machida
  • Patent number: 9109472
    Abstract: An control apparatus for a variable valve mechanism, is capable of executing fail safe control in a case in which locking occurs in either one of a cam shaft of a double shaft structure. The control apparatus for a variable valve mechanism has a cam shaft of a double shaft structure including an outer cam shaft and an inner cam shaft, such that it is possible to adjust the phase of a sub cam of inner cam shaft with respect to an main cam of outer cam shaft, and by means these cams, at least one of an intake valve and an exhaust valve of an internal combustion engine is operated. When an abnormality is detected in one of the cam shafts, the control apparatus controls the phase of the cam of the other cam shaft, in accordance with the determined current phase of the cam.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: August 18, 2015
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Norihiro Araya, Kenichi Machida
  • Patent number: 9008948
    Abstract: A fuel injection control apparatus includes a low-side driver, arranged electrically downstream of an injector and operable to drive the injector with a changeover of an ON-OFF state thereof in response to a drive signal from a CPU; a high-side driver, arranged electrically upstream of the injector and downstream of a power source, and having an ON-OFF state thereof which may be changed in response to the drive signal from the CPU; a high-side return signal detection unit and a low-side return signal detection unit. Each of the low-side and high-side drivers includes a transistor arranged inside an ECU. The CPU diagnoses a function of a drive circuit based on the presence or non-presence of return signals received from the high-side return signal detection unit and the low-side return signal detection unit with respect to predetermined driving states of both the low-side and high-side drivers.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: April 14, 2015
    Assignee: Honda Motor Co., Ltd.
    Inventor: Kenichi Machida
  • Patent number: 8948985
    Abstract: A shift control device for a motorcycle includes a transmission that allows switching between a neutral state and a number of engaged shift positions, a shift control section that controls a shift state of the transmission, and an N/D changeover switch that switches between the neutral state and a drive mode for executing automatic shift among the plural shift positions. The shift control device also includes a hand-operated shift switch that allows manual shifting among the plural shift positions, and a foot operated shift control unit that allows manual shifting among the plural shift positions during the drive mode according to an operation of a shift pedal. The N/D changeover switch and the hand-operated shift switch are arranged around a handlebar of the motorcycle. The shift control section is operable to switch between the neutral state and the drive mode by the foot operated shift control unit.
    Type: Grant
    Filed: November 6, 2012
    Date of Patent: February 3, 2015
    Assignee: Honda Motor Co., Ltd.
    Inventors: Naoki Sakamoto, Kenichi Machida, Makoto Tsuyuguchi, Satoru Okoshi
  • Patent number: 8904855
    Abstract: A fault sensing device for a vehicle includes a time measuring section functioning as a sleep mode while power to a controller is off. The time measuring section can measure a stop time of an engine, and can transmit information on the stop time to the controller when power to the controller is on. When the controller determines that a stop time of the engine is a predetermined time, the controller performs fault sensing for an oil pressure switch.
    Type: Grant
    Filed: June 19, 2012
    Date of Patent: December 9, 2014
    Assignee: Honda Motor Co., Ltd.
    Inventors: Satoru Okoshi, Kenichi Machida
  • Publication number: 20140350827
    Abstract: An automobile control device includes a function that can control drive torque of a starting device to an arbitrary value, and a positive rotation detecting unit having at least one of a function to detect whether an engine rotates positively and a function to detect whether the engine does not rotate reversely. The control device also has an idle stop function to increase the drive torque of the starting device when the positive rotation detecting unit detects that the engine rotates positively or does not rotate reversely. Accordingly, problems of malfunctions such as a reduction in a system voltage, abnormal wear of a brush in a starter motor, and breakage of a semiconductor switch are solved that are found in a conventional automobile control device having the idle stop function and that are caused by flowing of overcurrent when a starter is driven during swing-over that occurs immediately before engine stop.
    Type: Application
    Filed: August 7, 2012
    Publication date: November 27, 2014
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD
    Inventors: Osamu Mukaihara, Kenichi Machida
  • Patent number: 8826885
    Abstract: A fuel injection control system provided with a throttle by wire (TBW) system detecting an operation condition of a throttle grip and controlling, via an actuator, a throttle valve. The control system detects the throttle valve opening and controls an injector. An increased quantity correction value is determined based upon of an output of a throttle valve opening sensor and an operation condition of the throttle grip. When an acceleration condition of a vehicle is detected according to the output of the throttle valve opening sensor, an increased quantity correction of fuel is performed. The increased quantity correction value is brought to an attenuation condition in which the increased quantity correction value is gradually decreased, or a stop condition in which the increased quantity correction value is made to zero, when the throttle grip is not in drive in an opening direction, even though an acceleration condition is detected.
    Type: Grant
    Filed: July 12, 2011
    Date of Patent: September 9, 2014
    Assignee: Honda Motor Co., Ltd.
    Inventors: Yukihiro Asada, Kenichi Machida
  • Patent number: 8803679
    Abstract: An engine rotational speed display device includes a rotational speed sensor and a pulse rotor. An engine rotational speed calculating unit is configured to calculate an engine rotational speed by a moving average of a detected value of a crankshaft rotational speed pulse. A display unit is configured to display the engine rotational speed on a meter by electrical processing. When the crankshaft rotational speed pulse is not detected in a detection time equal to or more than a predetermined value, the engine rotational speed calculating unit determines that the engine rotational speed is “0,” and the engine rotational speed of “0” is displayed on the meter.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: August 12, 2014
    Assignee: Honda Motor Co., Ltd.
    Inventors: Masanori Nakamura, Kenichi Machida
  • Patent number: 8688359
    Abstract: There is provided an idle stop system that can more quickly restart with small noise in conducting idle stop. In preparation for a restart request during an engine inertial rotation, after a motor is rotated in a state where a starter motor is not coupled to the engine, a pinion is engaged with a ring gear during the motor is subjected to inertial rotation like the engine. In this situation, the rotational speed including future pulsation of the engine is estimated with the use of information on the crank angle, and a pinion pushing timing is controlled so that the pinion and the ring gear contact each other with a given rotational speed difference taking a delay time of a pinion pushing unit into consideration.
    Type: Grant
    Filed: August 2, 2011
    Date of Patent: April 1, 2014
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Hiroyasu Kuniyoshi, Akira Nishioka, Ryuu Kai, Kenichi Machida, Yoshiaki Nagasawa
  • Publication number: 20140076251
    Abstract: An apparatus for controlling a variable valve timing mechanism includes an electronic controller which includes a microcomputer converges a valve timing of a variable valve timing mechanism to a target changing amount based on a deviation between the target changing amount and an output of a sensor for detecting a changing amount of the valve timing.
    Type: Application
    Filed: September 16, 2013
    Publication date: March 20, 2014
    Applicant: Hitachi Automotive Systems, Ltd.
    Inventors: Nobuhiko MATSUO, Kenichi MACHIDA
  • Patent number: 8573179
    Abstract: When cranking starts by turning on a starter switch 14, the ignition timing is first corrected to a fixed value on a retard side. When an IACV 6 reaches a fully opened position, the ignition timing is corrected to the retard side once, and thereafter corrected to an advance side. The correction to the advance side is performed in accordance with a difference between the number of idling target steps and the current number of steps, and the amount of advance correction is reduced as the difference is reduced. Upon completion of the initialization of the IACV 6, the ignition timing correction amount is then restored to the initial value by increasing the amount of advance by a predetermined amount in a stepwise manner.
    Type: Grant
    Filed: March 2, 2010
    Date of Patent: November 5, 2013
    Assignee: Honda Motor Co., Ltd.
    Inventors: Yukihiro Asada, Kenichi Machida
  • Publication number: 20130268181
    Abstract: A vehicle control device is provided with an idle reduction system for performing automatic stopping and automatic starting of the internal combustion engine, where the idle reduction system includes a starter that separately causes movement of a pinion gear and driving of a motor, and a semiconductor switching element that controls the movement of the pinion gear and the driving of the motor, the control device being provided with a means for detecting or estimating that the internal combustion engine reversely rotates in a process in which the internal combustion engine stops rotating and a means for inhibiting the driving of the motor by the semiconductor switching element for a predetermined period of time in the case where the reverse rotation is detected or estimated.
    Type: Application
    Filed: December 28, 2011
    Publication date: October 10, 2013
    Applicant: Hitachi Automotive Systems, Ltd.
    Inventors: Yoshiaki Nagasawa, Eiichi Otsu, Koji Onishi, Kenichi Machida, Shigehiko Omata, Shigenori Nakazato