Patents by Inventor Kazuyoshi Sasazawa

Kazuyoshi Sasazawa 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: 9794286
    Abstract: In order to detect and prevent attacks in which the network is infested with unauthorized data to cause malfunction, the invention aims, on the basis of network cycle information, to detect errors and to prevent unauthorized data forwarding in a network system such as a vehicle-mounted network. This network device is provided with a communication unit which receives data, a time management unit which manages the reception time at which data is received, and a control unit which processes data.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: October 17, 2017
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Satoshi Otsuka, Tasuku Ishigooka, Fumio Narisawa, Kazuyoshi Sasazawa
  • Publication number: 20150358351
    Abstract: In order to detect and prevent attacks in which the network is infested with unauthorized data to cause malfunction, the invention aims, on the basis of network cycle information, to detect errors and to prevent unauthorized data forwarding in a network system such as a vehicle-mounted network. This network device is provided with a communication unit which receives data, a time management unit which manages the reception time at which data is received, and a control unit which processes data.
    Type: Application
    Filed: December 20, 2013
    Publication date: December 10, 2015
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Satoshi OTSUKA, Tasuku ISHIGOOKA, Fumio NARISAWA, Kazuyoshi SASAZAWA
  • Patent number: 8912756
    Abstract: A multi-series battery control system comprises a plurality of unit battery cell of which unit consists of multiple battery cells connected in series; a plurality of control IC comprising a control circuit for controlling the unit battery cell; a main controller that sends and receives signal to/from the control ICs via an insulation; means for sending an abnormality signal, which represents the existence or the absence of abnormality of the control ICs or the battery cells, to the main controller from the control ICs, responding to the first signal outputted from the main controller via the insulation; and means for searching contents of the abnormality in the control ICs or the battery cells and sending the abnormality contents signal based on the search, to the main controller from the control ICs, responding to the second signal outputted from the main controller via the insulation.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: December 16, 2014
    Assignee: Shin-Kobe Electric Machinery Co., Ltd.
    Inventors: Akihiko Emori, Shigeyuki Yoshihara, Kazuyoshi Sasazawa, Tatsuo Horiba, Akihiko Kudo
  • Publication number: 20140340042
    Abstract: A multi-series battery control system comprises a plurality of unit battery cell of which unit consists of multiple battery cells connected in series; a plurality of control IC comprising a control circuit for controlling the unit battery cell; a main controller that sends and receives signal to/from the control ICs via an insulation; means for sending an abnormality signal, which represents the existence or the absence of abnormality of the control ICs or the battery cells, to the main controller from the control ICs, responding to the first signal outputted from the main controller via the insulation; and means for searching contents of the abnormality in the control ICs or the battery cells and sending the abnormality contents signal based on the search, to the main controller from the control ICs, responding to the second signal outputted from the main controller via the insulation.
    Type: Application
    Filed: December 26, 2012
    Publication date: November 20, 2014
    Applicant: Shin-Kobe Electric Machinery Co., Ltd.
    Inventors: Akihiko EMORI, Shigeyuki YOSHIHARA, Kazuyoshi SASAZAWA, Tatsuo HORIBA, Akihiko KUDO
  • Patent number: 8884584
    Abstract: A multi-series battery control system comprises a plurality of unit battery cell of which unit consists of multiple battery cells connected in series; a plurality of control IC comprising a control circuit for controlling the unit battery cell; a main controller that sends and receives signal to/from the control ICs via an insulation; means for sending an abnormality signal, which represents the existence or the absence of abnormality of the control ICs or the battery cells, to the main controller from the control ICs, responding to the first signal outputted from the main controller via the insulation; and means for searching contents of the abnormality in the control ICs or the battery cells and sending the abnormality contents signal based on the search, to the main controller from the control ICs, responding to the second signal outputted from the main controller via the insulation.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: November 11, 2014
    Assignee: Shin-Kobe Electric Machinery Co., Ltd.
    Inventors: Akihiko Emori, Shigeyuki Yoshihara, Kazuyoshi Sasazawa, Tatsuo Horiba, Akihiko Kudo
  • Patent number: 8791668
    Abstract: A multi-series battery control system comprises a plurality of unit battery cell of which unit consists of multiple battery cells connected in series; a plurality of control IC comprising a control circuit for controlling the unit battery cell; a main controller that sends and receives signal to/from the control ICs via an insulation; means for sending an abnormality signal, which represents the existence or the absence of abnormality of the control ICs or the battery cells, to the main controller from the control ICs, responding to the first signal outputted from the main controller via the insulation; and means for searching contents of the abnormality in the control ICs or the battery cells and sending the abnormality contents signal based on the search, to the main controller from the control ICs, responding to the second signal outputted from the main controller via the insulation.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: July 29, 2014
    Assignee: Shin-Kobe Electric Machinery Co., Ltd.
    Inventors: Akihiko Emori, Shigeyuki Yoshihara, Kazuyoshi Sasazawa, Tatsuo Horiba, Akihiko Kudo
  • Patent number: 8786256
    Abstract: A multi-series battery control system comprises a plurality of unit battery cell of which unit consists of multiple battery cells connected in series; a plurality of control IC comprising a control circuit for controlling the unit battery cell; a main controller that sends and receives signal to/from the control ICs via an insulation; means for sending an abnormality signal, which represents the existence or the absence of abnormality of the control ICs or the battery cells, to the main controller from the control ICs, responding to the first signal outputted from the main controller via the insulation; and means for searching contents of the abnormality in the control ICs or the battery cells and sending the abnormality contents signal based on the search, to the main controller from the control ICs, responding to the second signal outputted from the main controller via the insulation.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: July 22, 2014
    Assignee: Shin-Kobe Electric Machinery Co., Ltd.
    Inventors: Akihiko Emori, Shigeyuki Yoshihara, Kazuyoshi Sasazawa, Tatsuo Horiba, Akihiko Kudo
  • Publication number: 20130214740
    Abstract: A multi-series battery control system comprises a plurality of unit battery cell of which unit consists of multiple battery cells connected in series; a plurality of control IC comprising a control circuit for controlling the unit battery cell; a main controller that sends and receives signal to/from the control ICs via an insulation; means for sending an abnormality signal, which represents the existence or the absence of abnormality of the control ICs or the battery cells, to the main controller from the control ICs, responding to the first signal outputted from the main controller via the insulation; and means for searching contents of the abnormality in the control ICs or the battery cells and sending the abnormality contents signal based on the search, to the main controller from the control ICs, responding to the second signal outputted from the main controller via the insulation.
    Type: Application
    Filed: December 21, 2012
    Publication date: August 22, 2013
    Applicant: Shin-Kobe Electric Machinery Co., Ltd.
    Inventors: Akihiko EMORI, Shigeyuki YOSHIHARA, Kazuyoshi SASAZAWA, Tatsuo HORIBA, Akihiko KUDO
  • Publication number: 20130207609
    Abstract: A multi-series battery control system comprises a plurality of unit battery cell of which unit consists of multiple battery cells connected in series; a plurality of control IC comprising a control circuit for controlling the unit battery cell; a main controller that sends and receives signal to/from the control ICs via an insulation; means for sending an abnormality signal, which represents the existence or the absence of abnormality of the control ICs or the battery cells, to the main controller from the control ICs, responding to the first signal outputted from the main controller via the insulation; and means for searching contents of the abnormality in the control ICs or the battery cells and sending the abnormality contents signal based on the search, to the main controller from the control ICs, responding to the second signal outputted from the main controller via the insulation.
    Type: Application
    Filed: December 26, 2012
    Publication date: August 15, 2013
    Applicant: Shin-Kobe Electric Machinery Co., Ltd.
    Inventors: Akihiko EMORI, Shigeyuki YOSHIHARA, Kazuyoshi SASAZAWA, Tatsuo HORIBA, Akihiko KUDO
  • Publication number: 20130119936
    Abstract: A multi-series battery control system comprises a plurality of unit battery cell of which unit consists of multiple battery cells connected in series; a plurality of control IC comprising a control circuit for controlling the unit battery cell; a main controller that sends and receives signal to/from the control ICs via an insulation; means for sending an abnormality signal, which represents the existence or the absence of abnormality of the control ICs or the battery cells, to the main controller from the control ICs, responding to the first signal outputted from the main controller via the insulation; and means for searching contents of the abnormality in the control ICs or the battery cells and sending the abnormality contents signal based on the search, to the main controller from the control ICs, responding to the second signal outputted from the main controller via the insulation.
    Type: Application
    Filed: December 26, 2012
    Publication date: May 16, 2013
    Applicant: Shin-Kobe Electric Machinery Co., Ltd.
    Inventors: Akihiko EMORI, Shigeyuki YOSHIHARA, Kazuyoshi SASAZAWA, Tatsuo HORIBA, Akihiko KUDO
  • Patent number: 8339099
    Abstract: A multi-series battery control system comprises a plurality of unit battery cell of which unit consists of multiple battery cells connected in series; a plurality of control IC comprising a control circuit for controlling the unit battery cell; a main controller that sends and receives signal to/from the control ICs via an insulation; means for sending an abnormality signal, which represents the existence or the absence of abnormality of the control ICs or the battery cells, to the main controller from the control ICs, responding to the first signal outputted from the main controller via the insulation; and means for searching contents of the abnormality in the control ICs or the battery cells and sending the abnormality contents signal based on the search, to the main controller from the control ICs, responding to the second signal outputted from the main controller via the insulation.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: December 25, 2012
    Assignee: Shin-Kobe Electric Machinery Co., Ltd.
    Inventors: Akihiko Emori, Shigeyuki Yoshihara, Kazuyoshi Sasazawa, Tatsuo Horiba, Akihiko Kudo
  • Publication number: 20090224769
    Abstract: A multi-series battery control system comprises a plurality of unit battery cell of which unit consists of multiple battery cells connected in series; a plurality of control IC comprising a control circuit for controlling the unit battery cell, a main controller that sends and receives signal to/from the control ICs via an insulation; means for sending an abnormality signal, which represents the existence or the absence of abnormality of the control ICs or the battery cells, to the main controller from the control ICs, responding to the first signal outputted from the main controller via the insulation; and means for searching contents of the abnormality in the control ICs or the battery cells and sending the abnormality contents signal based on the search, to the main controller from the control ICs, responding to the second signal outputted from the main controller via the insulation.
    Type: Application
    Filed: March 31, 2009
    Publication date: September 10, 2009
    Inventors: Akihiko EMORI, Shigeyuki Yoshihara, Kazuyoshi Sasazawa, Tatsuo Horiba, Akihiko Kudo
  • Patent number: 7511457
    Abstract: A multi-series battery control system comprises a plurality of unit battery cell of which unit consists of multiple battery cells connected in series; a plurality of control IC comprising a control circuit for controlling the unit battery cell; a main controller that sends and receives signal to/from the control ICs via an insulation; means for sending an abnormality signal, which represents the existence or the absence of abnormality of the control ICs or the battery cells, to the main controller from the control ICs, responding to the first signal outputted from the main controller via the insulation; and means for searching contents of the abnormality in the control ICs or the battery cells and sending the abnormality contents signal based on the search, to the main controller from the control ICs, responding to the second signal outputted from the main controller via the insulation.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: March 31, 2009
    Assignee: Shin-Kobe Electric Machinery Co., Ltd.
    Inventors: Akihiko Emori, Shigeyuki Yoshihara, Kazuyoshi Sasazawa, Tatsuo Horiba, Akihiko Kudo
  • Patent number: 7471065
    Abstract: A multi-series battery control system comprises a unit battery cell of which unit consists of multiple battery cells, control IC comprising a control IC chip containing a control circuit for controlling the unit battery cell and a cell monitor IC chip for monitoring the voltage of the unit battery cell, and main controller that sends and receives signal to/from the control IC via insulation of which cell monitor IC chip and control IC chip are paired to control the unit battery cell.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: December 30, 2008
    Assignee: Shin-Kobe Electric Machinery Co., Ltd.
    Inventors: Akihiko Emori, Shigeyuki Yoshihara, Kazuyoshi Sasazawa, Tatsuo Horiba, Akihiko Kudo
  • Patent number: 7406389
    Abstract: A state detecting system which can detect state of power storage at high precision even with lesser characteristic data to be used for calculation, and a device employing the same. The state detecting system has a memory for storing a characteristic data, calculation information, and set information, an arithmetic unit for calculating state information indicative of state of said power storage and calculating correction information for performing correction, a first correcting unit for correcting input of said arithmetic means, and a second correcting unit for correcting information stored or set in the storage.
    Type: Grant
    Filed: June 22, 2006
    Date of Patent: July 29, 2008
    Assignees: Hitachi, Ltd., Shin-Kobe Electric Machinery Co., Ltd.
    Inventors: Akihiko Emori, Akihiko Kudou, Shigeyuki Yoshihara, Hideki Miyazaki, Toshisada Mitsui, Mitsuyuki Hombu, Kazuyoshi Sasazawa
  • Publication number: 20060247871
    Abstract: A state detecting system which can detect state of power storage at high precision even with lesser characteristic data to be used for calculation, and a device employing the same. The state detecting system has a memory for storing a characteristic data, calculation information, and set information, an arithmetic unit for calculating state information indicative of state of said power storage and calculating correction information for performing correction, a first correcting unit for correcting input of said arithmetic means, and a second correcting unit for correcting information stored or set in the storage.
    Type: Application
    Filed: June 22, 2006
    Publication date: November 2, 2006
    Applicant: HITACHI, LTD.
    Inventors: Akihiko Emori, Akihiko Kudou, Shigeyuki Yoshihara, Hideki Miyazaki, Toshisada Mitsui, Mitsuyuki Hombu, Kazuyoshi Sasazawa
  • Patent number: 7085661
    Abstract: A state detecting system which can detect state of power storage at high precision even with lesser characteristic data to be used for calculation, and a device employing the same. The state detecting system has a memory for storing a characteristic data, calculation information, and set information, an arithmetic unit for calculating state information indicative of state of said power storage and calculating correction information for performing correction, a first correcting unit for correcting input of said arithmetic means, and a second correcting unit for correcting information stored or set in the storage.
    Type: Grant
    Filed: January 10, 2005
    Date of Patent: August 1, 2006
    Assignees: Hitachi, Ltd., Shin-Kobe Electric Machinery Co., Ltd.
    Inventors: Akihiko Emori, Akihiko Kudou, Shigeyuki Yoshihara, Hideki Miyazaki, Toshisada Mitsui, Mitsuyuki Hombu, Kazuyoshi Sasazawa
  • Publication number: 20050242776
    Abstract: A multi-series battery control system comprises a unit battery cell of which unit consists of multiple battery cells, control IC comprising a control IC chip containing a control circuit for controlling the unit battery cell and a cell monitor IC chip for monitoring the voltage of the unit battery cell, and main controller that sends and receives signal to/from the control IC via insulation of which cell monitor IC chip and control IC chip are paired to control the unit battery cell.
    Type: Application
    Filed: April 29, 2005
    Publication date: November 3, 2005
    Inventors: Akihiko Emori, Shigeyuki Yoshihara, Kazuyoshi Sasazawa, Tatsuo Horiba, Akihiko Kudo
  • Publication number: 20050242667
    Abstract: A multi-series battery control system comprises a plurality of unit battery cell of which unit consists of multiple battery cells connected in series; a plurality of control IC comprising a control circuit for controlling the unit battery cell; a main controller that sends and receives signal to/from the control ICs via an insulation; means for sending an abnormality signal, which represents the existence or the absence of abnormality of the control ICs or the battery cells, to the main controller from the control ICs, responding to the first signal outputted from the main controller via the insulation; and means for searching contents of the abnormality in the control ICs or the battery cells and sending the abnormality contents signal based on the search, to the main controller from the control ICs, responding to the second signal outputted from the main controller via the insulation.
    Type: Application
    Filed: April 29, 2005
    Publication date: November 3, 2005
    Inventors: Akihiko Emori, Shigeyuki Yoshihara, Kazuyoshi Sasazawa, Tatsuo Horiba, Akihiko Kudo
  • Publication number: 20050119856
    Abstract: A state detecting system which can detect state of power storage at high precision even with lesser characteristic data to be used for calculation, and a device employing the same. The state detecting system has a memory for storing a characteristic data, calculation information, and set information, an arithmetic unit for calculating state information indicative of state of said power storage and calculating correction information for performing correction, a first correcting unit for correcting input of said arithmetic means, and a second correcting unit for correcting information stored or set in the storage.
    Type: Application
    Filed: January 10, 2005
    Publication date: June 2, 2005
    Applicants: Hitachi, LTD., Shin-Kobe Electric Machinery Co.
    Inventors: Akihiko Emori, Akihiko Kudou, Shigeyuki Yoshihara, Hideki Miyazaki, Toshisada Mitsui, Mitsuyuki Hombu, Kazuyoshi Sasazawa