Patents by Inventor Shin Hotta

Shin Hotta 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: 10353010
    Abstract: There is provided a battery remaining-life estimation apparatus that includes a memory, and a circuit. The memory is configured to store information about a polarization-voltage curve of a secondary battery, the information being stored with a correlation with a current value and a temperature of the secondary battery. The circuit is configured to estimate a remaining power of the secondary battery, the remaining power being estimated based on a discharge curve of the secondary battery. The circuit obtains the polarization-voltage curve based on the information in the memory, the polarization-voltage curve being correlated with the current value and the temperature of the secondary battery. The circuit also estimates the discharge curve by subtracting the obtained polarization-voltage curve from an open-circuit voltage curve obtained for the secondary battery.
    Type: Grant
    Filed: February 16, 2015
    Date of Patent: July 16, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Shin Hotta
  • Patent number: 10230249
    Abstract: Provided is a method for charging/discharging a battery pack having an auxiliary charging/discharging device and a battery assembly in which a plurality of secondary battery cell parallel modules, each of which includes a plurality of fasecondary battery cells connected in parallel, are connected in series, the method including, when there is no abnormality in the secondary battery cells during charging/discharging, connecting the auxiliary charging/discharging device in parallel to any of the secondary battery cell parallel modules, and when there is an abnormality in any of the secondary battery cells during charging/discharging, releasing connection to the secondary battery cell at which the abnormality has arisen in the secondary battery cell parallel module including the secondary battery cell at which the abnormality has arisen, and connecting the auxiliary charging/discharging device in parallel to the secondary battery cell parallel module including the secondary battery cell at which the abnormality
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: March 12, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Atsushi Ozawa, Kazuo Nakamura, Shin Hotta, Kentaro Marutani, Shinichi Uesaka
  • Patent number: 9966636
    Abstract: A battery pack is provided. The battery pack has a plurality of secondary batteries and an inspection circuit. When the plurality of secondary batteries are classified into a first secondary battery group configured of secondary batteries selected from the plurality of secondary batteries and a second secondary battery group configured of remaining secondary batteries not belonging to the first secondary battery group, the inspection circuit creates a first data string of the secondary batteries configuring the second secondary battery group, based on a predetermined arithmetic rule, from identification marks of the secondary batteries configuring the first secondary battery group, obtains a second data string by examining identification marks of the secondary batteries configuring the second secondary battery group, subsequently compares the first data string with the second data string, and stops a function of the battery pack when the first data string and the second data string do not match.
    Type: Grant
    Filed: September 5, 2011
    Date of Patent: May 8, 2018
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Shin Hotta, Atsushi Ozawa, Kentaro Marutani, Shinichi Uesaka
  • Patent number: 9947972
    Abstract: A battery pack and a method of inspecting a storage state of a secondary battery in the battery pack are provided. In the method of inspecting a storage state of a secondary battery in the battery pack, the battery pack includes (A) a plurality of secondary batteries and (B) a housing, the housing having a plurality of storage sections and containing the secondary batteries in the respective storage sections; a conductive member 30 is attached to an outer surface of each of the secondary batteries made of a non-conductive material; each of the storage sections is provided with at least two detection sections; and depending on a storage state of each of the secondary batteries in each of the storage sections, two detection sections are in contact with the conductive member, or at least one detection section is not in contact with the conductive member.
    Type: Grant
    Filed: September 5, 2011
    Date of Patent: April 17, 2018
    Assignee: Murata Manufacturing Co., Inc.
    Inventors: Atsushi Ozawa, Shin Hotta, Kentaro Marutani, Shinichi Uesaka
  • Patent number: 9634314
    Abstract: A battery pack and a simple construction is provided. The battery pack includes a plurality of secondary batteries, a housing storing the plurality of secondary batteries, and an inspection circuit stored in the housing. The housing includes a main body section and a closing member to close an opening for taking the plurality of secondary batteries in and out of the main body section, and includes a plurality of fixing members for fixing the closing member on the main body section, the plurality of fixing members being made of a conductive material. An attachment state of the fixing members with respect to the closing member and the main body section is monitored by the inspection circuit, and an attachment order of the fixing members with respect to the closing member and the main body section is memorized by the inspection circuit.
    Type: Grant
    Filed: September 5, 2011
    Date of Patent: April 25, 2017
    Assignee: SONY CORPORATION
    Inventors: Kentaro Marutani, Atsushi Ozawa, Shin Hotta, Shinichi Uesaka
  • Patent number: 9608248
    Abstract: An assembled battery includes a plurality of secondary battery cell series modules each having a plurality of secondary battery cells connected in series, wherein in each secondary battery cell series module, the secondary battery cells are connected in series by a first connection member, the secondary battery cell constituting the secondary battery cell series module and the secondary battery cell constituting the secondary battery cell series module adjacent to the above secondary battery cell series module are connected in parallel by a second connection member, the electrical resistance value of the second connection member is higher than the electrical resistance value of the first connection member, and the melting point of a material constituting the second connection member is lower than the melting point of a material constituting the first connection member.
    Type: Grant
    Filed: October 17, 2011
    Date of Patent: March 28, 2017
    Assignee: Sony Corporation
    Inventors: Shin Hotta, Shinichi Uesaka
  • Patent number: 9581650
    Abstract: A method of estimating a state of charge of a secondary cell includes: calculating a value of (?Eemf/?T) in advance on the assumption that Eemf is an electromotive force of the secondary cell and T is a temperature of the secondary cell; and calculating the state of charge based on at least a value of (?Eemf/?T) for which a value of the state of charge is set as a variable, a temperature measurement value of the secondary cell, and a current measurement value of the secondary cell.
    Type: Grant
    Filed: May 21, 2013
    Date of Patent: February 28, 2017
    Assignee: Sony Corporation
    Inventor: Shin Hotta
  • Patent number: 9281702
    Abstract: The present invention relates to an electric storage unit group, a charger, an electronic device, an electric vehicle, a method for charging the electric storage unit, a method for discharging the electric storage unit group, a method for supplying and receiving power, and a method for determining a charging/discharging route in the electric storage unit group, which can provide a method for charging the electric storage unit group in which a plurality of electric storage units are connected in a desired form. The method for charging the electric storage unit group is a method for charging a rechargeable battery cell in an electric storage unit group in which a plurality of electric storage units having rechargeable battery cells are linearly or reticulately connected. At an upstream side of the electric storage unit group, the electric storage unit group is connected to a power supply for charging the electric storage units.
    Type: Grant
    Filed: September 9, 2011
    Date of Patent: March 8, 2016
    Assignee: SONY CORPORATION
    Inventor: Shin Hotta
  • Patent number: 9276422
    Abstract: A battery pack that has a configuration in which a plurality of secondary battery cells are connected in series at time of discharge and are connected in parallel at time of charge, and that has a configuration and a structure with which the charge and the discharge are allowed to be performed without any trouble even if an abnormal-state secondary battery cell exists is provided. A battery pack 10 includes a plurality of secondary battery cells 21 and a control circuit 11. Under control of the control circuit 11, the plurality of secondary battery cells 21 are connected in series at time of discharge, and are connected in parallel at time of charge.
    Type: Grant
    Filed: January 17, 2012
    Date of Patent: March 1, 2016
    Assignee: SONY CORPORATION
    Inventor: Shin Hotta
  • Publication number: 20150241516
    Abstract: There is provided a battery remaining-life estimation apparatus that includes a memory, and a circuit. The memory is configured to store information about a polarization-voltage curve of a secondary battery, the information being stored with a correlation with a current value and a temperature of the secondary battery. The circuit is configured to estimate a remaining power of the secondary battery, the remaining power being estimated based on a discharge curve of the secondary battery. The circuit obtains the polarization-voltage curve based on the information in the memory, the polarization-voltage curve being correlated with the current value and the temperature of the secondary battery. The circuit also estimates the discharge curve by subtracting the obtained polarization-voltage curve from an open-circuit voltage curve obtained for the secondary battery.
    Type: Application
    Filed: February 16, 2015
    Publication date: August 27, 2015
    Inventor: Shin HOTTA
  • Publication number: 20150127186
    Abstract: A power supply device including: (a) a power supply unit group composed of a plurality of power supply units and connected with a power consuming appliance; and (b) a control device configured to control the power supply unit group, wherein the control device and each of the power supply units are connected to each other by a communicating circuit.
    Type: Application
    Filed: January 8, 2015
    Publication date: May 7, 2015
    Inventors: Shiho Moriai, Tsuyoshi Masato, Shinichi Uesaka, Atsushi Ozawa, Masanobu Katagi, Tomoyuki Ono, Kazuhito Tsuchida, Shin Hotta, Kazuo Nakamura, Kentaro Marutani
  • Patent number: 9014866
    Abstract: A power supply device including: (a) a power supply unit group composed of a plurality of power supply units and connected with a power consuming appliance; and (b) a control device configured to control the power supply unit group, wherein the control device and each of the power supply units are connected to each other by a communicating circuit.
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: April 21, 2015
    Assignee: Sony Corporation
    Inventors: Shiho Moriai, Tsuyoshi Masato, Shinichi Uesaka, Atsushi Ozawa, Masanobu Katagi, Tomoyuki Ono, Kazuhito Tsuchida, Shin Hotta, Kazuo Nakamura, Kentaro Marutani
  • Publication number: 20130317697
    Abstract: A method of estimating a state of charge of a secondary cell includes: calculating a value of (?Eemf/?T) in advance on the assumption that Eemf is an electromotive force of the secondary cell and T is a temperature of the secondary cell; and calculating the state of charge based on at least a value of (?Eemf/?T) for which a value of the state of charge is set as a variable, a temperature measurement value of the secondary cell, and a current measurement value of the secondary cell.
    Type: Application
    Filed: May 21, 2013
    Publication date: November 28, 2013
    Applicant: Sony Corporation
    Inventor: Shin Hotta
  • Publication number: 20130300370
    Abstract: A battery pack that has a configuration in which a plurality of secondary battery cells are connected in series at time of discharge and are connected in parallel at time of charge, and that has a configuration and a structure with which the charge and the discharge are allowed to be performed without any trouble even if an abnormal-state secondary battery cell exists is provided. A battery pack 10 includes a plurality of secondary battery cells 21 and a control circuit 11. Under control of the control circuit 11, the plurality of secondary battery cells 21 are connected in series at time of discharge, and are connected in parallel at time of charge.
    Type: Application
    Filed: January 17, 2012
    Publication date: November 14, 2013
    Applicant: SONY CORPORATION
    Inventor: Shin Hotta
  • Patent number: 8518756
    Abstract: A method for crystallizing a thin film A gate insulating film formed on a substrate so as to cover a gate electrode. A light absorption layer is formed thereon through a buffer layer. Energy lines Lh are applied to the light absorption layer from a continuous-wave laser such as a semiconductor laser. This anneals only a surface side of the light absorption layer Lh and produces a crystalline silicon film obtained by crystallizing the amorphous silicon film using heat generated by thermal conversion of the energy lines Lh at the light absorption layer and heat of the annealing reaction.
    Type: Grant
    Filed: April 6, 2012
    Date of Patent: August 27, 2013
    Assignee: Sony Corporation
    Inventors: Nobuhiko Umezu, Koichi Tsukihara, Goh Matsunobu, Yoshio Inagaki, Koichi Tatsuki, Shin Hotta, Katsuya Shirai
  • Publication number: 20130200848
    Abstract: Provided is a method for charging/discharging a battery pack having an auxiliary charging/discharging device and a battery assembly in which a plurality of secondary battery cell parallel modules, each of which includes a plurality of fasecondary battery cells connected in parallel, are connected in series, the method including, when there is no abnormality in the secondary battery cells during charging/discharging, connecting the auxiliary charging/discharging device in parallel to any of the secondary battery cell parallel modules, and when there is an abnormality in any of the secondary battery cells during charging/discharging, releasing connection to the secondary battery cell at which the abnormality has arisen in the secondary battery cell parallel module including the secondary battery cell at which the abnormality has arisen, and connecting the auxiliary charging/discharging device in parallel to the secondary battery cell parallel module including the secondary battery cell at which the abnormality
    Type: Application
    Filed: September 8, 2011
    Publication date: August 8, 2013
    Applicant: Sony Corporation
    Inventors: Atsushi Ozawa, Kazuo Nakamura, Shin Hotta, Kentaro Marutani, Shinichi Uesaka
  • Publication number: 20130181721
    Abstract: A battery pack and a method of inspecting a storage state of a secondary battery in the battery pack are provided. In the method of inspecting a storage state of a secondary battery in the battery pack, the battery pack includes (A) a plurality of secondary batteries and (B) a housing, the housing having a plurality of storage sections and containing the secondary batteries in the respective storage sections; a conductive member 30 is attached to an outer surface of each of the secondary batteries made of a non-conductive material; each of the storage sections is provided with at least two detection sections; and depending on a storage state of each of the secondary batteries in each of the storage sections, two detection sections are in contact with the conductive member, or at least one detection section is not in contact with the conductive member.
    Type: Application
    Filed: September 5, 2011
    Publication date: July 18, 2013
    Applicant: SONY CORPORATION
    Inventors: Atsushi Ozawa, Shin Hotta, Kentaro Marutani, Shinichi Uesaka
  • Publication number: 20130177783
    Abstract: A battery pack and a simple construction is provided. The battery pack includes a plurality of secondary batteries, a housing storing the plurality of secondary batteries, and an inspection circuit stored in the housing. The housing includes a main body section and a closing member to close an opening for taking the plurality of secondary batteries in and out of the main body section, and includes a plurality of fixing members for fixing the closing member on the main body section, the plurality of fixing members being made of a conductive material. An attachment state of the fixing members with respect to the closing member and the main body section is monitored by the inspection circuit, and an attachment order of the fixing members with respect to the closing member and the main body section is memorized by the inspection circuit.
    Type: Application
    Filed: September 5, 2011
    Publication date: July 11, 2013
    Applicant: SONY CORPORATION
    Inventors: Kentaro Marutani, Atsushi Ozawa, Shin Hotta, Shinichi Uesaka
  • Publication number: 20130169231
    Abstract: The present invention relates to an electric storage unit group, a charger, an electronic device, an electric vehicle, a method for charging the electric storage unit, a method for discharging the electric storage unit group, a method for supplying and receiving power, and a method for determining a charging/discharging route in the electric storage unit group, which can provide a method for charging the electric storage unit group in which a plurality of electric storage units are connected in a desired form. The method for charging the electric storage unit group is a method for charging a rechargeable battery cell in an electric storage unit group in which a plurality of electric storage units having rechargeable battery cells are linearly or reticulately connected. At an upstream side of the electric storage unit group, the electric storage unit group is connected to a power supply for charging the electric storage units.
    Type: Application
    Filed: September 9, 2011
    Publication date: July 4, 2013
    Applicant: SONY CORPORATION
    Inventor: Shin Hotta
  • Publication number: 20130171481
    Abstract: A battery pack is provided. The battery pack has a plurality of secondary batteries and an inspection circuit. When the plurality of secondary batteries are classified into a first secondary battery group configured of secondary batteries selected from the plurality of secondary batteries and a second secondary battery group configured of remaining secondary batteries not belonging to the first secondary battery group, the inspection circuit creates a first data string of the secondary batteries configuring the second secondary battery group, based on a predetermined arithmetic rule, from identification marks of the secondary batteries configuring the first secondary battery group, obtains a second data string by examining identification marks of the secondary batteries configuring the second secondary battery group, subsequently compares the first data string with the second data string, and stops a function of the battery pack when the first data string and the second data string do not match.
    Type: Application
    Filed: September 5, 2011
    Publication date: July 4, 2013
    Applicant: SONY CORPORATION
    Inventors: Shin Hotta, Atsushi Ozawa, Kentaro Marutani, Shinichi Uesaka