Patents by Inventor Atsushi Iwai

Atsushi Iwai 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: 20140254695
    Abstract: A charging station performs communications by use of a superimposing/separating unit configured by connecting a capacitor, a coupling transformer and a capacitor to branch lines branching out respectively from a control cable and a grounded cable. An electric vehicle performs communications by use of a superimposing/separating unit configured by providing a coupling transformer to the control cable. A capacitor is also connected between the control cable and the grounded cable. Communications are allowed by the configuration of a closed loop circuit comprising the control cable, the branch line, the capacitor, a primary coil of the coupling transformer, the capacitor, the branch line, the grounded cable, the capacitor, and a primary coil of the coupling transformer.
    Type: Application
    Filed: July 13, 2012
    Publication date: September 11, 2014
    Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., TOYOTA JIDOSHA KABUSHIKI KAISHIA, AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD.
    Inventors: Yousuke Takata, Yutaka Komatsu, Takeshi Hagihara, Hiroya Andoh, Yuta Ochiai, Ryuichi Kamaga, Atsushi Iwai, Yukihiro Miyashita, Nobuyuki Nakagawa
  • Publication number: 20140247893
    Abstract: Provided are a communication system and a communication device capable of suppressing attenuation of a communication signal superimposed upon a control pilot line. This output circuit (20) sends a control pilot signal which has been generated at a voltage generation source (21) to an input circuit (60). Between the control pilot line (4) and the ground line (3) of the output side of the output circuit (20), a communication unit (30) is connected via a transformer (31). Between the control pilot line (4) and the ground line (3) of the input side of the input circuit (60), a communication unit (70) is connected via a transformer (71). Between the output circuit (20) and the transformer (31), a lowpass filter (33) is interposed. Between the input circuit (60) and the transformer (71), a lowpass filter (73) is interposed.
    Type: Application
    Filed: June 21, 2012
    Publication date: September 4, 2014
    Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA, AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD.
    Inventors: Yutaka Komatsu, Takeshi Hagihara, Ryou Okada, Yousuke Takata, Tatsuya Izumi, Kazuhiko Nii, Hiroya Andoh, Yuta Ochiai, Ryuichi Kamaga, Atsushi Iwai, Yukihiro Miyashita, Nobuyuki Nakagawa
  • Publication number: 20140192910
    Abstract: An output circuit sends out, to an input circuit, a control pilot signal generated by a voltage source. A voltage transformer is provided to a control pilot line on the output side of the output circuit, and a communication unit transmits and receives communication signals via the voltage transformer. A voltage transformer is provided to the control pilot line on the input side of the input circuit, and a communication unit transmits and receives the communication signals via the voltage transformer. A low-pass filter is provided to the control pilot line between the input circuit and the voltage transformer.
    Type: Application
    Filed: July 13, 2012
    Publication date: July 10, 2014
    Applicants: Sumitomo Kitahama 4-chome, TOYOTA JIDOSHA KABUSHIKI KAISHA, AutoNetworks Technologies, Ltd., Sumitomo Wiring
    Inventors: Ryou Okada, Takeshi Hagihara, Yutaka Komatsu, Tatsuya Izumi, Kazuhiko Nii, Yousuke Takata, Hiroya Andoh, Yuta Ochiai, Ryuichi Kamaga, Atsushi Iwai, Yukihiro Miyashita, Nobuyuki Nakagawa
  • Publication number: 20140070759
    Abstract: A vehicle-mounted controller mounted on a vehicle includes communication state determination unit and a battery charging control unit. The communication state determination unit is configured to determine whether or not vehicle-mounted information equipment performs communication with external charging equipment or an external information device via a charging cable. The battery charging control unit is configured to control, in a case where the communication state determination unit determines that the vehicle-mounted information equipment performs the communication with the external charging equipment or the external information device via the charging cable, a voltage converter so as to charge a low-voltage battery by supplying electric power from a high-voltage battery to the low-voltage battery when a first specific time has elapsed since start of the communication.
    Type: Application
    Filed: September 5, 2013
    Publication date: March 13, 2014
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Atsushi IWAI
  • Publication number: 20120318214
    Abstract: A sensor abnormality detection apparatus which is installed in a vehicle with an electric water pump for circulating engine cooling water and is configured to perform an abnormality detecting process related to a first temperature sensor or a second temperature sensor based on a relationship between a detection result of the first temperature sensor for detecting a temperature of the engine cooling water and a detection result of the second temperature sensor for detecting a temperature of another medium which is correlated with the temperature of the engine cooling water or an estimation result of the temperature of the engine cooling water, comprising: a water pump forced-operating part configured to force the electric water pump to operate if the detection result of the first temperature sensor and the detection result of the second temperature sensor or the estimation result of the temperature of the engine cooling water do not meet a predetermined relationship, under a condition where the electric water
    Type: Application
    Filed: March 9, 2010
    Publication date: December 20, 2012
    Inventor: Atsushi Iwai
  • Patent number: 7980760
    Abstract: An X-ray inspection apparatus detects, by an X-ray line sensor, X-rays irradiated towards a product placed on a conveyor and transmitted therethrough in order to detect the presence of foreign matter contained in the product. The X-ray inspection apparatus includes a determination unit and a calibrating unit. The determination unit is configured to determine, based on detection results by a line sensor obtained at each of prescribed positions of the conveyor, whether each of the prescribed positions of the conveyor is an appropriate position for calibrating the line sensor. The calibrating unit is configured to calibrate the line sensor based on detection results obtained by the line sensor at a position that is determined by the determination unit to be the appropriate position for calibrating the line sensor.
    Type: Grant
    Filed: July 12, 2007
    Date of Patent: July 19, 2011
    Assignee: Ishida Co., Ltd.
    Inventors: Takashi Kabumoto, Atsushi Iwai
  • Patent number: 7865281
    Abstract: A failure diagnosis system that erases diagnostic information applied to a vehicle that includes an ECU for that stores a vehicle identification number (VIN) and diagnostic information (hereinafter, referred to as “VIN storage ECU”), and an ECU that does not store the vehicle identification number but stores the diagnostic information (hereinafter, referred to as “other ECU”) is characterized by being constructed so as to erase the diagnostic information stored in the VIN storage ECU and also erase the diagnostic information stored in the other ECU in connection with the writing of the vehicle identification number stored in the VIN storage ECU.
    Type: Grant
    Filed: May 8, 2009
    Date of Patent: January 4, 2011
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Atsushi Iwai, Kiyonari Kato
  • Patent number: 7818997
    Abstract: An abnormality diagnostic device diagnoses the presence/absence of abnormality of an intake air temperature sensor (21) on the basis of the magnitude of deviation between the lowest temperature of the intake air detected via the intake air temperature sensor (21) in a period from the startup of an internal combustion engine until the trend of change in the temperature of the air taken into the internal combustion engine becomes stable and a temperature detected via a water temperature sensor (22). If the decline in the temperature of the intake air detected via the intake air temperature sensor (21) within the aforementioned period is greater than or equal to a predetermined criterion value (IAT1), the abnormality diagnosis is suspended.
    Type: Grant
    Filed: July 3, 2007
    Date of Patent: October 26, 2010
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Atsushi Iwai
  • Publication number: 20100002835
    Abstract: An X-ray inspection apparatus detects, by an X-ray line sensor, X-rays irradiated towards a product placed on a conveyor and transmitted therethrough in order to detect the presence of foreign matter contained in the product. The X-ray inspection apparatus includes a determination unit and a calibrating unit. The determination unit is configured to determine, based on detection results by a line sensor obtained at each of prescribed positions of the conveyor, whether each of the prescribed positions of the conveyor is an appropriate position for calibrating the line sensor. The calibrating unit is configured to calibrate the line sensor based on detection results obtained by the line sensor at a position that is determined by the determination unit to be the appropriate position for calibrating the line sensor.
    Type: Application
    Filed: July 12, 2007
    Publication date: January 7, 2010
    Applicant: Ishida Co., Ltd.
    Inventors: Takashi Kabumoto, Atsushi Iwai
  • Publication number: 20090287370
    Abstract: A failure diagnosis system that erases diagnostic information applied to a vehicle that includes an ECU for that stores a vehicle identification number (VIN) and diagnostic information (hereinafter, referred to as “VIN storage ECU”), and an ECU that does not store the vehicle identification number but stores the diagnostic information (hereinafter, referred to as “other ECU”) is characterized by being constructed so as to erase the diagnostic information stored in the VIN storage ECU and also erase the diagnostic information stored in the other ECU in connection with the writing of the vehicle identification number stored in the VIN storage ECU.
    Type: Application
    Filed: May 8, 2009
    Publication date: November 19, 2009
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Atsushi Iwai, Kiyonari Kato
  • Publication number: 20090105903
    Abstract: A malfunction recording device includes: a detection section that detects diagnostic trouble codes of a vehicle; a recording section that records the diagnostic trouble codes and operates in an inspection mode or a normal mode; a switch section that changes the operation mode of the recording section between the inspection mode and the normal mode; a determination section that determines whether the vehicle is in motion; a volatile memory section, into which the recording section records the diagnostic trouble codes either in the inspection mode or in the normal mode; a nonvolatile memory section, into which the recording section records the diagnostic trouble codes in the normal mode. If the determination section determines that the vehicle is in motion, the switch section changes the operation mode of the recording section from the inspection mode to the normal mode.
    Type: Application
    Filed: October 16, 2008
    Publication date: April 23, 2009
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Atsushi IWAI
  • Publication number: 20090078033
    Abstract: An abnormality diagnostic device diagnoses the presence/absence of abnormality of an intake air temperature sensor (21) on the basis of the magnitude of deviation between the lowest temperature of the intake air detected via the intake air temperature sensor (21) in a period from the startup of an internal combustion engine until the trend of change in the temperature of the air taken into the internal combustion engine becomes stable and a temperature detected via a water temperature sensor (22). If the decline in the temperature of the intake air detected via the intake air temperature sensor (21) within the aforementioned period is greater than or equal to a predetermined criterion value (IAT1), the abnormality diagnosis is suspended.
    Type: Application
    Filed: July 3, 2007
    Publication date: March 26, 2009
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Atsushi Iwai