Patents by Inventor Yasuaki Hiraki
Yasuaki Hiraki 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: 7216895Abstract: A seating detector comprises a plurality of cells provided at a seating surface to be defined by rows and columns for detecting partial loads, an unevenness calculating means for calculating the number of cells when a partial pressure detected at the each cell is larger than a partial pressure detected at one abutting cell positioned next to the cell at one side thereof and a partial pressure detected at the other abutting cell positioned next to the cell at the other side thereof, or when a partial pressure detected at the each cell is smaller than a partial pressure detected at one abutting cell positioned next to the cell at one side thereof and a partial pressure detected at the other abutting cell positioned next to the cell at the other side thereof, and a determining means for determining that the seat is occupied by a child restraint system based on a comparison between the number of the cells and a threshold.Type: GrantFiled: September 17, 2004Date of Patent: May 15, 2007Assignee: Aisin Seiki Kabushiki KaishaInventors: Katsu Hattori, Yukihiro Yamamoto, Koji Ito, Yasuaki Hiraki
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Patent number: 7212894Abstract: An occupant detecting device comprises plural cells provided at a seating part of a vehicle seat and defined by an array of rows in a width direction of the vehicle seat and columns in a cross direction of the vehicle seat for detecting partial pressures of the seating part, a total pressure value calculating means for obtaining a total pressure value by summing up the detected partial pressures, a determining means for determining a condition of the vehicle seat on which an adult passenger is sitting based on a comparison result between the obtained total pressure value and a determining value threshold, a temperature sensor for detecting temperature, and a correcting means for correcting at least one of either the total pressure value calculated based on the detected temperature or the determining value threshold.Type: GrantFiled: March 25, 2004Date of Patent: May 1, 2007Assignee: Aisin Seiki Kabushiki KaishaInventors: Katsu Hattori, Toshiro Maeda, Yasuaki Hiraki, Yukihiro Yamamoto
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Patent number: 7135645Abstract: An occupant weight detecting device includes plural cells provided on a seat and detecting pressure which is defined by rows in a width direction of the seat and columns in a back-and-forth direction of the seat, a peak row detecting means for calculating the sum of pressure per cells of predetermined number of rows adjoining in the back-and-forth direction and detecting any one row of the predetermined number of rows corresponding to the maximum sum to be defined as a peak row, and a detecting means for detecting a concentrated load position on the seat based on the peak row.Type: GrantFiled: February 27, 2004Date of Patent: November 14, 2006Assignee: Aisin Seiki Kabushiki KaishaInventors: Yasuaki Hiraki, Koji Ito, Katsu Hattori, Hiroki Satta, Yukihiro Yamamoto
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Patent number: 6938499Abstract: A load detecting device includes a plurality of load sensors which are disposed in a matrix shape and correcting means for setting at least one of the plural load sensors as a standard load sensor and for correcting level of output values of each load sensors to level of output value of the standard load sensor on the basis of the output values of each load sensors.Type: GrantFiled: April 24, 2002Date of Patent: September 6, 2005Assignee: Aisin Seiki Kabushiki KaishaInventors: Yasuaki Hiraki, Hitoshi Takayanagi, Katsu Hattori, Chiaki Sumi
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Patent number: 6924614Abstract: An opening and closing device for an opening and closing member of a vehicle includes a driving motor, a feedback control unit for controlling an output duty to the driving motor so that a preset target speed of the driving motor can be achieved, a high-pass filter for filtering a frequency of an actual speed of the driving motor, and a pinching determination unit for determining a pinching of an object based on an output from the high-pass filter.Type: GrantFiled: April 23, 2003Date of Patent: August 2, 2005Assignee: Aisin Seiki Kabushiki KaishaInventors: Satoru Onozawa, Yasuaki Hiraki, Seika Matsui
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Publication number: 20050090958Abstract: A seating detector comprises a plurality of cells provided at a seating surface to be defined by rows and columns for detecting partial loads, an unevenness calculating means for calculating the number of cells when a partial pressure detected at the each cell is larger than a partial pressure detected at one abutting cell positioned next to the cell at one side thereof and a partial pressure detected at the other abutting cell positioned next to the cell at the other side thereof, or when a partial pressure detected at the each cell is smaller than a partial pressure detected at one abutting cell positioned next to the cell at one side thereof and a partial pressure detected at the other abutting cell positioned next to the cell at the other side thereof, and a determining means for determining that the seat is occupied by a child restraint system based on a comparison between the number of the cells and a threshold.Type: ApplicationFiled: September 17, 2004Publication date: April 28, 2005Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Katsu Hattori, Yukihiro Yamamoto, Koji Ito, Yasuaki Hiraki
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Publication number: 20040249536Abstract: An occupant detecting device comprises plural cells provided at a seating part of a vehicle seat and defined by an array of rows in a width direction of the vehicle seat and columns in a cross direction of the vehicle seat for detecting partial pressures of the seating part, a total pressure value calculating means for obtaining a total pressure value by summing up the detected partial pressures, a determining means for determining a condition of the vehicle seat on which an adult passenger is sitting based on a comparison result between the obtained total pressure value and a determining value threshold, a temperature sensor for detecting temperature, and a correcting means for correcting at least one of either the total pressure value calculated based on the detected temperature or the determining value threshold.Type: ApplicationFiled: March 25, 2004Publication date: December 9, 2004Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Katsu Hattori, Toshiro Maeda, Yasuaki Hiraki, Yukihiro Yamamoto
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Patent number: 6825623Abstract: An opening and closing control device of opening and closing member for a vehicle includes a motor for actuating the opening and closing member, and a control unit for driving the motor so as to become a predetermined target speed and for driving the motor in reverse direction as a detection of entrapped obstacles when the actual speed of the motor reaches to an entrapment judgment speed which is set lower than the target speed. The control unit sets a threshold speed which is higher than the target speed and outputs an output duty to the motor for achieving the target speed by feedback control. The control unit switches the output duty after the actual speed of the motor becomes higher than the threshold speed to an output by feedforward control based on the target speed.Type: GrantFiled: April 8, 2003Date of Patent: November 30, 2004Assignees: Aisin Seiki Kabushiki Kaisha, Toyota Shatai Kabushiki KaishaInventors: Satoru Onozawa, Yasuaki Hiraki, Seika Matsui, Mizuho Morimitsu
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Publication number: 20040226756Abstract: An occupant weight detecting device includes plural cells provided on a seat and detecting pressure which is defined by rows in a width direction of the seat and columns in a back-and-forth direction of the seat, a peak row detecting means for calculating the sum of pressure per cells of predetermined number of rows adjoining in the back-and-forth direction and detecting any one row of the predetermined number of rows corresponding to the maximum sum to be defined as a peak row, and a detecting means for detecting a concentrated load position on the seat based on the peak row.Type: ApplicationFiled: February 27, 2004Publication date: November 18, 2004Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Yasuaki Hiraki, Koji Ito, Katsu Hattori, Hiroki Satta, Yukihiro Yamamoto
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Publication number: 20030234543Abstract: An opening and closing device for an opening and closing member of a vehicle includes a driving motor, a feedback control unit for controlling an output duty to the driving motor so that a preset target speed of the driving motor can be achieved, a high-pass filter for filtering a frequency of an actual speed of the driving motor, and a pinching determination unit for determining a pinching of an object based on an output from the high-pass filter.Type: ApplicationFiled: April 23, 2003Publication date: December 25, 2003Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Satoru Onozawa, Yasuaki Hiraki, Seika Matsui
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Publication number: 20030214264Abstract: An opening and closing control device of opening and closing member for a vehicle Includes a motor for actuating the opening and closing member, and a control unit for driving the motor so as to become a predetermined target speed and for driving the motor in reverse direction as a detection of entrapped obstacles when the actual speed of the motor reaches to an entrapment Judgment speed which is set lower than the target speed. The control unit sets a threshold speed which is higher than the target speed and outputs an output duty to the motor for achieving the target speed by feedback control. The control unit switches the output duty after the actual speed of the motor becomes higher than the threshold speed to an output by feedforward control based on the target speed.Type: ApplicationFiled: April 8, 2003Publication date: November 20, 2003Applicants: AISIN SEIKI KABUSHIKI KAISHA, TOYOTA SHATAI KABUSHIKI KAISHAInventors: Satoru Onozawa, Yasuaki Hiraki, Seika Matsui, Mizuho Morimitsu
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Publication number: 20020178839Abstract: A load detecting device includes a plurality of load sensors which are disposed in a matrix shape and correcting means for setting at least one of the plural load sensors as a standard load sensor and for correcting level of output values of each load sensors to level of output value of the standard load sensor on the basis of the output values of each load sensors.Type: ApplicationFiled: April 24, 2002Publication date: December 5, 2002Inventors: Yasuaki Hiraki, Hitoshi Takayanagi, Katsu Hattori, Chiaki Sumi