Patents by Inventor Hideya Kurachi
Hideya Kurachi 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: 11346873Abstract: A capacitance detection device includes: a capacitor array having parallel-connected capacitors having different capacitances, and whose combined capacitance is changed by selectively switching the capacitors; a detection capacitor connected in series to the capacitor array; a switching control unit selectively switching the capacitors; a detection unit detecting an intermediate potential that is a potential of a capacitive voltage division of a power supply; an acquisition unit acquiring, as a reference combined capacitance, any of the combined capacitances in a vicinity where a magnitude relationship between the intermediate potential and a predetermined reference potential is inverted; a determination unit determining whether or not a detection target is present; a capacitance change unit controlling the switching control unit to change the reference combined capacitance; and a setting unit setting the determination threshold based on a difference between the intermediate potentials in the reference combinType: GrantFiled: March 11, 2020Date of Patent: May 31, 2022Assignee: AISIN CORPORATIONInventor: Hideya Kurachi
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Patent number: 11293961Abstract: A capacitance detection device includes: a variable capacitance capacitor; an electrode constituting a detection target whose capacitance is to be detected; and a control circuit, in which the control circuit executes: manipulation processing of manipulating a capacitance of the variable capacitance capacitor to control an intermediate potential, which is a potential at a connection point between the variable capacitance capacitor and the electrode, to a reference potential, when a voltage of a voltage application device is applied to the electrode via the variable capacitance capacitor; and detection processing of detecting the capacitance of the detection target, based on the capacitance of the variable capacitance capacitor when being controlled to the reference potential.Type: GrantFiled: March 11, 2020Date of Patent: April 5, 2022Assignee: AISIN CORPORATIONInventors: Hideya Kurachi, Akira Takahashi
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Publication number: 20200292600Abstract: A capacitance detection device includes: a variable capacitance capacitor; an electrode constituting a detection target whose capacitance is to be detected; and a control circuit, in which the control circuit executes: manipulation processing of manipulating a capacitance of the variable capacitance capacitor to control an intermediate potential, which is a potential at a connection point between the variable capacitance capacitor and the electrode, to a reference potential, when a voltage of a voltage application device is applied to the electrode via the variable capacitance capacitor; and detection processing of detecting the capacitance of the detection target, based on the capacitance of the variable capacitance capacitor when being controlled to the reference potential.Type: ApplicationFiled: March 11, 2020Publication date: September 17, 2020Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Hideya Kurachi, Akira Takahashi
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Publication number: 20200292601Abstract: A capacitance detection device includes: a capacitor array having parallel-connected capacitors having different capacitances, and whose combined capacitance is changed by selectively switching the capacitors; a detection capacitor connected in series to the capacitor array; a switching control unit selectively switching the capacitors; a detection unit detecting an intermediate potential that is a potential of a capacitive voltage division of a power supply; an acquisition unit acquiring, as a reference combined capacitance, any of the combined capacitances in a vicinity where a magnitude relationship between the intermediate potential and a predetermined reference potential is inverted; a determination unit determining whether or not a detection target is present; a capacitance change unit controlling the switching control unit to change the reference combined capacitance; and a setting unit setting the determination threshold based on a difference between the intermediate potentials in the reference combinType: ApplicationFiled: March 11, 2020Publication date: September 17, 2020Applicant: Aisin Seiki Kabushiki KaishaInventor: Hideya KURACHI
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Patent number: 7656826Abstract: A terminal control system is provided that has a main control device, a plurality of terminal devices controlled by the main control device, and communication lines for connecting the main control device and each of the terminal devices so as to allow bidirectional communication, wherein the configuration is simple, communication time is short, and highly reliable bidirectional communication is possible. The terminal control system comprises a main control device 1, a plurality of terminal devices 2 controlled by the main control device 1, and communication lines 3 for connecting the main control device and each of the terminal devices so as to allow bidirectional communication, wherein control data is simultaneously and collectively sent from the main control device 1 to a plurality of the terminal devices 2, and terminal data for each of the terminal devices is independently sent from each of the terminal devices 2 to the main control device 1.Type: GrantFiled: July 25, 2005Date of Patent: February 2, 2010Assignee: Aisin Seiki Kabushiki KaishaInventors: Koji Goto, Hideya Kurachi, Nobuyasu Kimura, Chiaki Sumi
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Publication number: 20080089253Abstract: A terminal control system is provided that has a main control device, a plurality of terminal devices controlled by the main control device, and communication lines for connecting the main control device and each of the terminal devices so as to allow bidirectional communication, wherein the configuration is simple, communication time is short, and highly reliable bidirectional communication is possible. The terminal control system comprises a main control device 1, a plurality of terminal devices 2 controlled by the main control device 1, and communication lines 3 for connecting the main control device and each of the terminal devices so as to allow bidirectional communication, wherein control data is simultaneously and collectively sent from the main control device 1 to a plurality of the terminal devices 2, and terminal data for each of the terminal devices is independently sent from each of the terminal devices 2 to the main control device 1.Type: ApplicationFiled: July 25, 2005Publication date: April 17, 2008Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Koji Goto, Hideya Kurachi, Nobuyasu Kimura, Chiaki Sumi
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Publication number: 20070177532Abstract: Satisfactory failure determination and detection of the connection state are made possible in a terminal control system comprising a main control device, a terminal device controlled by the main control device, and a communication line connected so as to enable two-way communication between the devices. The terminal control system comprises a main control device 1, a terminal device 2 controlled by the main control device 1, and a communication line 3 connected so as to enable two-way communication between the devices, wherein the main control device 1 comprises a detection unit 4 for detecting a characteristic of a waveform of terminal data transmitted from the terminal device 2 and received by the main control device 1 via the communication line 3, and also comprises a determination unit 5 for determining a state of a connection between the main control device 1 and the terminal device 2 based on results of detection by the detection unit 4 and on a reference stored by the main control device 1.Type: ApplicationFiled: July 25, 2005Publication date: August 2, 2007Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Hideya Kurachi, Koji Goto, Nobuyasu Kimura, Chiaki Sumi
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Patent number: 6526826Abstract: The angular speed sensor device includes a drive frame 11 and a detecting frame 12 which are supported on a silicon substrate 10 in a floating mode. The drive frame 11 and the detecting frame 12 are provided with an angular speed about the z-axis when the drive frame 11 and the detecting frame 12 are driven to vibrate in the x-direction, the resulting Corliolis force causing the detecting frame 12 to oscillate in the y-direction. Such a y-direction oscillation of the detecting frame 12 is detected as a displacement signal. On the basis of the displacement signal, the applied angular speed is calculated. The angular speed sensor device includes detecting electrodes 16a and 16b which drive the detecting frame 12 to vibrate in the y-direction when a drive signal is fed to each of the detecting electrodes 16a and 16b which changes the electrostatic capacitance between the detecting frame 12 and each of the detecting electrodes 16a and 16b.Type: GrantFiled: March 19, 2001Date of Patent: March 4, 2003Assignee: Aisin Seiki Kabushiki KaishaInventors: Hideya Kurachi, Manabu Kato
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Patent number: 6497147Abstract: An actuator for an oscillator which is capable of minimizing the fluctuation of the detection error of the oscillation condition of an electrostatic driven oscillator and shortening rise time of the oscillation amplitude of the electrostatic driven oscillator during starting. An actuator oscillates a drive frame and a detecting frame in the X-direction by outputting the drive signal to an electrode and detects the displacement of the drive frame in the X-direction as the displacement signal. The actuator generates a direct-current voltage component of the drive signal controlled to be increased or decreased based on the detected displacement signal and an alternating voltage component of the drive signal having a constant amplitude to maintain the constancy of the oscillation amplitude of the drive frame based on the detected displacement signal. During starting, the actuator generates an alternating voltage component of the drive signal having a larger amplitude compared to at normal operation condition.Type: GrantFiled: March 16, 2001Date of Patent: December 24, 2002Assignee: Aisin Seiki Kabushiki KaishaInventors: Manabu Kato, Hideya Kurachi
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Patent number: 6490924Abstract: An actuator for an oscillator which can control the fluctuation of the oscillation of an electrostatic driven oscillator such as the detection error by controlling the fluctuation of the amount of the noise mixed into a displacement detecting signal. An actuator oscillates a drive frame and a detecting frame in the X-direction by outputting the drive signal to a drive electrode to detect the displacement of the drive frame in the X-direction as a displacement detecting signal. The actuator generates a direct-current voltage component of the drive signal increased or decreased based on the detected displacement signal and the alternating voltage component of the drive signal having a constant amplitude to maintain the oscillation amplitude of the drive frame constant.Type: GrantFiled: March 16, 2001Date of Patent: December 10, 2002Assignee: Aisin Seiki Kabushiki KaishaInventors: Manabu Kato, Hideya Kurachi
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Publication number: 20010029784Abstract: The angular speed sensor device includes a drive frame 11 and a detecting frame 12 which are supported on a silicon substrate 10 in a floating mode. The drive frame 11 and the detecting frame 12 are provided with an angular speed about the z-axis when the drive frame 11 and the detecting frame 12 are driven to vibrate in the x-direction, the resulting Corliolis force causing the detecting frame 12 to oscillate in the y-direction. Such a y-direction oscillation of the detecting frame 12 is detected as a displacement signal. On the basis of the displacement signal, the applied angular speed is calculated. The angular speed sensor device includes detecting electrodes 16a and 16b which drive the detecting frame 12 to vibrate in the y-direction when a drive signal is fed to each of the detecting electrodes 16a and 16b which changes the electrostatic capacitance between the detecting frame 12 and each of the detecting electrodes 16a and 16b.Type: ApplicationFiled: March 19, 2001Publication date: October 18, 2001Inventors: Hideya Kurachi, Manabu Kato
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Publication number: 20010022107Abstract: An actuator for an oscillator which can control the fluctuation of the oscillation of an electrostatic driven oscillator such as the detection error by controlling the fluctuation of the amount of the noise mixed into a displacement detecting signal. An actuator oscillates a drive frame and a detecting frame in the X-direction by outputting the drive signal to a drive electrode to detect the displacement of the drive frame in the X-direction as a displacement detecting signal. The actuator generates a direct-current voltage component of the drive signal increased or decreased based on the detected displacement signal and the alternating voltage component of the drive signal having a constant amplitude to maintain the oscillation amplitude of the drive frame constant.Type: ApplicationFiled: March 16, 2001Publication date: September 20, 2001Inventors: Manabu Kato, Hideya Kurachi
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Publication number: 20010022106Abstract: An actuator for an oscillator which is capable of minimizing the fluctuation of the detection error of the oscillation condition of an electrostatic driven oscillator and shortening rise time of the oscillation amplitude of the electrostatic driven oscillator during starting. An actuator oscillates a drive frame and a detecting frame in the X-direction by outputting the drive signal to an electrode and detects the displacement of the drive frame in the X-direction as the displacement signal. The actuator generates a direct-current voltage component of the drive signal controlled to be increased or decreased based on the detected displacement signal and an alternating voltage component of the drive signal having a constant amplitude to maintain the constancy of the oscillation amplitude of the drive frame based on the detected displacement signal. During starting, the actuator generates an alternating voltage component of the drive signal having a larger amplitude compared to at normal operation condition.Type: ApplicationFiled: March 16, 2001Publication date: September 20, 2001Inventors: Manabu Kato, Hideya Kurachi
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Patent number: 5969248Abstract: An oscillation type angular velocity sensor includes an oscillator, as exciting device for exciting the oscillator, a detecting device for detecting the direction of oscillation of the oscillator which occurs by a Coriolis force acting on the oscillator when an angular velocity is applied thereto and a correction device adhered to a portion of the oscillator for correcting the direction of the oscillation of the oscillator by varying the elasticity of the portion of the oscillator.Type: GrantFiled: February 3, 1998Date of Patent: October 19, 1999Assignee: Aisin Seiki Kabushiki KaishaInventors: Hideya Kurachi, Takayoshi Tsuzuki
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Patent number: 5471875Abstract: A sensor for detecting rotational movement includes a cylindrical shaped resonator having an outer surface, a first pair of diametrically opposed driving electrodes provided on the outer surface of the resonator, a second pair of diametrically opposed driving electrodes provided on the outer surface of the resonator, a device for generating concurrently a first force and a second force at each of the first driving electrodes and each of the second driving electrodes, respectively, in such a manner that the first force reverses its direction along the radius of the resonator at a regular interval, the second force reverses its direction along the radius of the resonator at a regular interval, and the direction of the first force is opposite to the direction of the second force.Type: GrantFiled: February 14, 1994Date of Patent: December 5, 1995Assignee: Aisin Seiki Kabushiki KaishaInventors: Masayuki Sato, Toshihiro Kobayashi, Toru Watanabe, Katsuyoshi Mizumoto, Hiroshi Kajino, Hideya Kurachi