Patents by Inventor Yoshinori Aoshima

Yoshinori Aoshima 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: 10269531
    Abstract: A scanning electron microscope having a charged particle device that processes a specimen using a charged particle beam, the scanning electron microscope includes: an electron source; a secondary-electron detector that detects secondary electrons generated from the specimen; a backscattered-electron detector that is disposed closer to the electron source than a detection surface of the secondary-electron detector to detect backscattered electrons generated from the specimen; a shielding plate for shielding a detection surface of the backscattered-electron detector; and a moving mechanism that moves the shielding plate. In a state where the shielding plate is moved by the moving mechanism so as to shield the detection surface of the backscattered-electron detector, the shielding plate is located between the detection surface of the backscattered-electron detector and the detection surface of the secondary-electron detector.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: April 23, 2019
    Assignee: JEOL Ltd.
    Inventors: Tatsuru Kuramoto, Yuichiro Ohori, Yoshinori Matsuda, Makoto Aoshima
  • Publication number: 20190067954
    Abstract: An object of the present invention is to provide a control device and a control method for a storage battery, which calculates an appropriate maximum allowable input/output power that suppresses deterioration of the storage battery while suppressing deterioration of power performance of a vehicle when a current is continuously charged or discharged. When it is detected that charging or discharging is continuously performed over a predetermined duration time with respect to the maximum allowable charge power and the maximum allowable discharge power which can be input and output during the calculated predetermined duration time, the value of the maximum allowable charge power or the maximum allowable discharge power communicated to a vehicle controller on the basis of the state of charge or discharge is reduced based on the time during which charging or discharging is actually continued.
    Type: Application
    Filed: December 22, 2016
    Publication date: February 28, 2019
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Keiichiro OHKAWA, Yoshinori AOSHIMA
  • Patent number: 10205333
    Abstract: A battery controlling device includes: a voltage detecting unit configured to detect a closed-circuit voltage of a secondary battery; an open-circuit-voltage computing unit configured to compute an open-circuit voltage of the secondary battery; and an assembled-battery controlling unit configured to discriminate whether a computed value computed based on a voltage difference between the closed-circuit voltage and the open-circuit voltage of the secondary battery in a continuous predetermined period is exceeding a permissible value determined in advance or not. If the computed value is exceeding the permissible value determined in advance, the assembled-battery controlling unit outputs a signal that carries out charge/discharge restriction of the secondary battery.
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: February 12, 2019
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Hiroshi Morikawa, Yoshinori Aoshima, Masashi Naitoh
  • Patent number: 10202041
    Abstract: A battery monitoring system, comprises a battery state detection circuit that detects battery states of a plurality of battery cells that are connected in series, based on respective cell voltages of the plurality of battery cells, and a control circuit that monitors state of a battery cell, based on each cell voltage of the plurality of battery cells. The control circuit inputs pseudo voltage information to the battery state detection circuit, and thereby diagnoses whether or not the battery state detection circuit is operating normally.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: February 12, 2019
    Assignees: Hitachi, Ltd., Hitachi Automotive Systems, Ltd.
    Inventors: Akihiko Kudo, Mutsumi Kikuchi, Gosuke Shibahara, Akihiko Emori, Yasuo Uemura, Tatsumi Yamauchi, Kenji Kubo, Masahito Sonehara, Masahiko Amano, Yoshinori Aoshima
  • Patent number: 10005373
    Abstract: A battery control system connected to a battery, which controls charge/discharge at the battery, includes: a current detection unit that measures a current value by detecting a charge/discharge current flowing through the battery; a voltage detection unit that detects a voltage at the battery; a temperature detection unit that detects a temperature at the battery; a temperature history recording unit that records temperature history pertaining to the temperature detected by the temperature detection unit; and a charge/discharge restriction unit that restricts the charge/discharge current in a low-temperature state based upon the temperature history recorded by the temperature history recording unit.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: June 26, 2018
    Assignees: HITACHI AUTOMOTIVE SYSTEMS, LTD., NISSAN MOTOR CO., LTD.
    Inventors: Hiroshi Morikawa, Yoshinori Aoshima, Masayuki Takada, Kenichiro Tsuru, Shigeyuki Kiyota, Yoshiyuki Tanaka, Toyoki Iguchi, Hiroaki Hashimoto, Yasuyuki Takahashi
  • Patent number: 9931959
    Abstract: A battery control system connected to a battery, which controls charge/discharge at the battery, includes: a current detection unit that measures a current value by detecting a charge/discharge current flowing through the battery; a voltage detection unit that detects a voltage at the battery; a temperature detection unit that detects a temperature at the battery; an effective current value calculation unit that calculates, based upon the current value measured by the current detection unit, an effective current value in a predetermined time window; and a charge/discharge restriction unit that imposes a first charge/discharge restriction so as to restrict the charge/discharge current based upon the effective current value calculated by the effective current value calculation unit.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: April 3, 2018
    Assignees: Hitachi Automotive Systems, Ltd., Nissan Motor Co., Ltd.
    Inventors: Yoshinori Aoshima, Hiroshi Morikawa, Masayuki Takada, Kenichiro Tsuru, Shigeyuki Kiyota, Yoshiyuki Tanaka, Toyoki Iguchi, Hiroaki Hashimoto, Yasuyuki Takahashi
  • Patent number: 9821667
    Abstract: A battery control system connected to a battery, which controls charge/discharge at the battery, includes: a current detection unit that measures a current value by detecting a charge/discharge current flowing through the battery; a voltage detection unit that detects a voltage at the battery; a temperature detection unit that detects a temperature at the battery; an effective current value calculation unit that calculates, based upon the current value measured by the current detection unit, an effective current value in a predetermined time window; a time ratio calculation unit that determines a time ratio indicating a ratio of a length of time over which the effective current value has been in excess of a predetermined allowable value during a predetermined specified time period; and a charge/discharge restriction unit that restricts the charge/discharge current based upon the time ratio determined by the time ratio calculation unit.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: November 21, 2017
    Assignees: HITACHI AUTOMOTIVE SYSTEMS, LTD., NISSAN MOTOR CO., LTD.
    Inventors: Hiroshi Morikawa, Yoshinori Aoshima, Masayuki Takada, Kenichiro Tsuru, Shigeyuki Kiyota, Yoshiyuki Tanaka, Toyoki Iguchi, Hiroaki Hashimoto, Yasuyuki Takahashi
  • Patent number: 9689926
    Abstract: The purpose of the present invention is to provide a battery control device that can appropriately verify the results of the estimation of the state of charge of a battery. This battery control device is provided with a charged state calculation unit that calculates the state of charge of the battery and a charged state verification unit that verifies the results of the calculation. The charged state verification unit calculates the charged state using a calculation procedure that is not being used by the charged state calculation unit.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: June 27, 2017
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Keiichiro Ohkawa, Ryohei Nakao, Youhei Kawahara, Naoyuki Igarashi, Yoshinori Aoshima
  • Patent number: 9680320
    Abstract: A battery control apparatus is provided which can keep an inter-terminal voltage of each single cell within a permitted range while permitted power is controlled in units of a battery pack. The battery control apparatus of the invention restricts the permitted power of the battery pack according to a degree of closeness of a close circuit voltage of the single cell to an upper limit or a lower limit of the permitted range.
    Type: Grant
    Filed: May 16, 2011
    Date of Patent: June 13, 2017
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Kenichiro Tsuru, Akinori Tada, Hiroshi Morikawa, Keiichiro Ohkawa, Yoshinori Aoshima
  • Publication number: 20170163069
    Abstract: A battery controlling device includes: a voltage detecting unit configured to detect a closed-circuit voltage of a secondary battery; an open-circuit-voltage computing unit configured to compute an open-circuit voltage of the secondary battery; and an assembled-battery controlling unit configured to discriminate whether a computed value computed based on a voltage difference between the closed-circuit voltage and the open-circuit voltage of the secondary battery in a continuous predetermined period is exceeding a permissible value determined in advance or not. If the computed value is exceeding the permissible value determined in advance, the assembled-battery controlling unit outputs a signal that carries out charge/discharge restriction of the secondary battery.
    Type: Application
    Filed: June 25, 2015
    Publication date: June 8, 2017
    Inventors: Hiroshi MORIKAWA, Yoshinori AOSHIMA, Masashi NAITOH
  • Patent number: 9557388
    Abstract: A battery control device calculates at least one of an allowable current and an allowable power during charge/discharge of a battery from a no-load voltage and an internal resistance of the battery, and corrects at least one of the no-load voltage and the internal resistance according to the states of charge/discharge of the battery.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: January 31, 2017
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Yoshinori Aoshima, Hiroshi Morikawa, Kenji Nakai, Keiichiro Ohkawa
  • Publication number: 20160303977
    Abstract: A battery monitoring system, comprises a battery state detection circuit that detects battery states of a plurality of battery cells that are connected in series, based on respective cell voltages of the plurality of battery cells, and a control circuit that monitors state of a battery cell, based on each cell voltage of the plurality of battery cells. The control circuit inputs pseudo voltage information to the battery state detection circuit, and thereby diagnoses whether or not the battery state detection circuit is operating normally.
    Type: Application
    Filed: June 28, 2016
    Publication date: October 20, 2016
    Inventors: Akihiko KUDO, Mutsumi KIKUCHI, Gosuke SHIBAHARA, Akihiko EMORI, Yasuo UEMURA, Tatsumi YAMAUCHI, Kenji KUBO, Masahito SONEHARA, Masahiko AMANO, Yoshinori AOSHIMA
  • Patent number: 9423464
    Abstract: A battery control device includes an acquisition portion that acquires measured values on the battery state every predetermined period, and a determination processing portion that determines the battery state. The determination processing portion determines that the battery state is abnormal when the number of times the measured value is out of a given range reaches a threshold until the measured value is acquired a predetermined standard number of times. If the number of times the measured value is out of range is less than the threshold when the measured number is acquired the standard number of times, the determination of the battery state is performed for an extended period until the number of times the measured value is out of the range reaches the threshold, or until the measured number is within the range, based on the measured value acquired more than the standard number of times.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: August 23, 2016
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Yoshinori Aoshima, Keiichiro Ohkawa
  • Patent number: 9404975
    Abstract: A battery monitoring system, comprises a battery state detection circuit that detects battery states of a plurality of battery cells that are connected in series, based on respective cell voltages of the plurality of battery cells, and a control circuit that monitors state of a battery cell, based on each cell voltage of the plurality of battery cells. The control circuit inputs pseudo voltage information to the battery state detection circuit, and thereby diagnoses whether or not the battery state detection circuit is operating normally.
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: August 2, 2016
    Assignees: Hitachi, Ltd., Hitachi Automotive Systems, Ltd.
    Inventors: Akihiko Kudo, Mutsumi Kikuchi, Gosuke Shibahara, Akihiko Emori, Yasuo Uemura, Tatsumi Yamauchi, Kenji Kubo, Masahito Sonehara, Masahiko Amano, Yoshinori Aoshima
  • Publication number: 20160185238
    Abstract: A battery control system connected to a battery, which controls charge/discharge at the battery, includes: a current detection unit that measures a current value by detecting a charge/discharge current flowing through the battery; a voltage detection unit that detects a voltage at the battery; a temperature detection unit that detects a temperature at the battery; an effective current value calculation unit that calculates, based upon the current value measured by the current detection unit, an effective current value in a predetermined time window; a time ratio calculation unit that determines a time ratio indicating a ratio of a length of time over which the effective current value has been in excess of a predetermined allowable value during a predetermined specified time period; and a charge/discharge restriction unit that restricts the charge/discharge current based upon the time ratio determined by the time ratio calculation unit.
    Type: Application
    Filed: July 25, 2014
    Publication date: June 30, 2016
    Applicants: HITACHI AUTOMOTIVE SYSTEMS, LTD., NISSAN MOTOR CO., LTD.
    Inventors: Hiroshi MORIKAWA, Yoshinori AOSHIMA, Masayuki TAKADA, Kenichiro TSURU, Shigeyuki KIYOTA, Yoshiyuki TANAKA, Toyoki IGUCHI, Hiroaki HASHIMOTO, Yasuyuki TAKAHASHI
  • Publication number: 20160185248
    Abstract: A battery control system connected to a battery, which controls charge/discharge at the battery, includes: a current detection unit that measures a current value by detecting a charge/discharge current flowing through the battery; a voltage detection unit that detects a voltage at the battery; a temperature detection unit that detects a temperature at the battery; an effective current value calculation unit that calculates, based upon the current value measured by the current detection unit, an effective current value in a predetermined time window; and a charge/discharge restriction unit that imposes a first charge/discharge restriction so as to restrict the charge/discharge current based upon the effective current value calculated by the effective current value calculation unit.
    Type: Application
    Filed: July 25, 2014
    Publication date: June 30, 2016
    Applicants: HITACHI AUTOMOTIVE SYSTEMS, LTD., NISSAN MOTOR CO., LTD.
    Inventors: Yoshinori AOSHIMA, Hiroshi MORIKAWA, Masayuki TAKADA, Kenichiro TSURU, Shigeyuki KIYOTA, Yoshiyuki TANAKA, Toyoki IGUCHI, Hiroaki HASHIMOTO, Yasuyuki TAKAHASHI
  • Publication number: 20160176308
    Abstract: A battery control system connected to a battery, which controls charge/discharge at the battery, includes: a current detection unit that measures a current value by detecting a charge/discharge current flowing through the battery; a voltage detection unit that detects a voltage at the battery; a temperature detection unit that detects a temperature at the battery; a temperature history recording unit that records temperature history pertaining to the temperature detected by the temperature detection unit; and a charge/discharge restriction unit that restricts the charge/discharge current in a low-temperature state based upon the temperature history recorded by the temperature history recording unit.
    Type: Application
    Filed: July 25, 2014
    Publication date: June 23, 2016
    Applicants: HITACHI AUTOMOTIVE SYSTEMS, LTD., NISSAN MOTOR CO., LTD.
    Inventors: Hiroshi MORIKAWA, Yoshinori AOSHIMA, Masayuki TAKADA, Kenichiro TSURU, Shigeyuki KIYOTA, Yoshiyuki TANAKA, Toyoki IGUCHI, Hiroaki HASHIMOTO, Yasuyuki TAKAHASHI
  • Patent number: 9293937
    Abstract: An electric storage device includes an assembled battery including a plurality of electric cells connected in series; an assembled battery control unit that estimates internal resistances of the plurality of electric cells, or a magnitude relationship of the internal resistances of the plurality of electric cells; an assembled battery control unit that calculates such a discharge quantity that an SOC after the electric cells have been discharged becomes lower as the internal resistance of the electric cells, which is estimated by the assembled battery control unit, is larger, or as the magnitude relationship of the internal resistances of the electric cells is estimated to be larger by the assembled battery control unit, for each of the electric cells; and electric cell control units that discharge each of the plurality of electric cells on the basis of the discharge quantity calculated by the assembled battery control unit.
    Type: Grant
    Filed: April 18, 2011
    Date of Patent: March 22, 2016
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Youhei Kawahara, Ryouhei Nakao, Akihiko Kudo, Akihiko Emori, Keiichiro Okawa, Yoshinori Aoshima
  • Publication number: 20150301115
    Abstract: The purpose of the present invention is to provide a battery control device that can appropriately verify the results of the estimation of the state of charge of a battery. This battery control device is provided with a charged state calculation unit that calculates the state of charge of the battery and a charged state verification unit that verifies the results of the calculation. The charged state verification unit calculates the charged state using a calculation procedure that is not being used by the charged state calculation unit.
    Type: Application
    Filed: January 25, 2013
    Publication date: October 22, 2015
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Keiichiro OHKAWA, Ryohei NAKAO, Youhei KAWAHARA, Naoyuki IGARASHI, Yoshinori AOSHIMA
  • Patent number: 9035611
    Abstract: A battery system for a vehicle is provided with discharge circuits (R1, 129A through 129D, 128A through 128D) that discharge battery cells (BC1 through BC4) via measurement lines of those battery cells (BC1 through BC4).
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: May 19, 2015
    Assignees: Hitachi, Ltd., Hitachi Automotive Systems, Ltd.
    Inventors: Mutsumi Kikuchi, Akihiko Kudo, Gosuke Shibahara, Yoshinori Aoshima, Kenji Kubo, Yasuo Uemura