Patents by Inventor Kazutaka Honda

Kazutaka Honda 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: 11892514
    Abstract: An assembled battery monitoring device in the present disclosure includes: an excitation signal processor generates a excitation signal by processing an in-phase signal of an orthogonal reference signal generated by a signal generator; a current exciter generates an excitation current based on the excitation signal according to voltage signals, and energizes a battery cell; and an impedance measurer measures an AC impedance of the battery cell based on the excitation current measured by the current measurer and a voltage of the battery cell measured by the voltage measurer.
    Type: Grant
    Filed: August 31, 2021
    Date of Patent: February 6, 2024
    Assignee: DENSO CORPORATION
    Inventors: Soya Taniguchi, Yoshikazu Furuta, Takeshi Kondo, Kazutaka Honda
  • Patent number: 11795356
    Abstract: An adhesive composition contains a resin component, a thermal crosslinking agent, and a curing agent, in which the resin component contains a resin having a maleimide group. In a method for producing a semiconductor device having a plurality of connection units for connecting a semiconductor chip and a wiring circuit substrate to each other, or for connecting a plurality of semiconductor chips to each other, a first connection unit is electrically connected to a second connection unit, and at least a portion of the first and second connection units is sealed using the adhesive composition.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: October 24, 2023
    Inventors: Kazutaka Honda, Keiko Ueno
  • Publication number: 20230288491
    Abstract: A battery monitoring device for monitoring an assembled battery having multiple battery cells includes: a range specifying unit that specifies a detection range; a voltage detection unit that detects a voltage of each battery cell in the detection range, includes an A/D converter for inputting a voltage corresponding to the voltage of each battery cell and a digital filter for inputting a digital signal output from the A/D converter and functioning as a low pass filter, and outputs an output signal of the digital filter as a detection signal representing a detection result of the voltage of each battery cell; and a characteristic setting unit that sets a characteristic of the digital filter.
    Type: Application
    Filed: May 19, 2023
    Publication date: September 14, 2023
    Inventors: KAZUTAKA HONDA, YUKIHIRO TOMONAGA, SHUNICHI KUBO
  • Publication number: 20230147469
    Abstract: A battery monitor system includes: a reference signal generation unit; an excitation signal generation unit; a current generation unit for an excitation current; a current measurement unit for the excitation current; a voltage measurement unit for a voltage of each battery cell; an impedance measurement unit for an impedance of each battery cell; a noise measurement unit for a noise voltage; and a control unit. The control unit selects one or more battery cells not a measurement target, and the noise measurement unit measures the noise voltage near a measurement frequency equal to a frequency of an orthogonal reference signal while operating the voltage measurement unit without operating the current generation unit.
    Type: Application
    Filed: January 12, 2023
    Publication date: May 11, 2023
    Inventors: YOSHIKAZU FURUTA, SOYA TANIGUCHI, TOMOHIRO NEZUKA, KAZUTAKA HONDA
  • Patent number: 11608455
    Abstract: Disclosed is a method for manufacturing a semiconductor device which includes: a semiconductor chip; a substrate and/or another semiconductor chip; and an adhesive layer interposed therebetween. This method comprises the steps of: heating and pressuring a laminate having: the semiconductor chip; the substrate; the another semiconductor chip or a semiconductor wafer; and the adhesive layer by interposing the laminate with pressing members for temporary press-bonding to thereby temporarily press-bond the substrate and the another semiconductor chip or the semiconductor wafer to the semiconductor chip; and heating and pressuring the laminate by interposing the laminate with pressing members for main press-bonding, which are separately prepared from the pressing members for temporary press-bonding, to thereby electrically connect a connection portion of the semiconductor chip and a connection portion of the substrate or the another semiconductor chip.
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: March 21, 2023
    Assignee: Showa Denko Materials Co., Ltd.
    Inventors: Kazutaka Honda, Koichi Chabana, Keishi Ono, Akira Nagai
  • Publication number: 20220283244
    Abstract: A battery monitoring device includes multiple A/D converters, a digital filter, an anti-alias filter, and a detection controller. The multiple A/D converters are provided in correspondence with multiple battery cells in an assemble battery. Each of the A/D converters is configured to receive an input voltage according to a voltage of corresponding one of the battery cells. The digital filter is configured to receive a digital signal output from each of the A/D converters and function as a low-pass filter. The anti-alias filter is configured to suppress aliasing by the digital filter. The detection controller is configured to control operation of the A/D converters so that the input voltage input to each of the A/D converters is A/D converted at a same timing, and detect the voltage of each of the battery cells based on an output signal of the digital filter.
    Type: Application
    Filed: May 26, 2022
    Publication date: September 8, 2022
    Inventors: Kazutaka HONDA, Akira KAWAMOTO, Tatsuki HYODOU
  • Publication number: 20220074999
    Abstract: An assembled battery monitoring device in the present disclosure includes: an excitation signal processor generates a excitation signal by processing an in-phase signal of an orthogonal reference signal generated by a signal generator; a current exciter generates an excitation current based on the excitation signal according to voltage signals, and energizes a battery cell; and an impedance measurer measures an AC impedance of the battery cell based on the excitation current measured by the current measurer and a voltage of the battery cell measured by the voltage measurer.
    Type: Application
    Filed: August 31, 2021
    Publication date: March 10, 2022
    Inventors: SOYA TANIGUCHI, YOSHIKAZU FURUTA, TAKESHI KONDO, KAZUTAKA HONDA
  • Patent number: 11181937
    Abstract: A correction current output circuit comprises a first voltage dividing circuit for generating a voltage in which an output voltage from a bandgap reference voltage circuit is divided in multiple stages, first and second correction circuits connected between a power supply and a ground, and a second voltage dividing circuit for dividing the above voltage in multiple stages in a path in which a positive temperature characteristic voltage is generated with the band gap reference voltage circuit. Current output terminals of a the second transistor of the first correction circuit and a first transistor of the second correction circuit are connected to a common connection point, and a current for correcting the temperature characteristic of a reference voltage generation circuit is output from the common connection point.
    Type: Grant
    Filed: July 7, 2020
    Date of Patent: November 23, 2021
    Assignee: DENSO CORPORATION
    Inventors: Yukihiro Tomonaga, Kazutaka Honda
  • Publication number: 20210351445
    Abstract: A semiconductor device includes: a first semiconductor chip in which a plurality of capacitors are provided by integrating trench capacitors to form a filter that receives, as an input, a physical quantity relating to a plurality of battery cells for forming an assembled battery; a second semiconductor chip in which a circuit is provided, the circuit executing a predetermined process for monitoring the assembled battery based on an output of the filter; and one package that accommodates the first semiconductor chip and the second semiconductor chip.
    Type: Application
    Filed: July 23, 2021
    Publication date: November 11, 2021
    Inventors: KAZUTAKA HONDA, RYOTARO MIURA, TAKAHITO HAYAKAWA
  • Publication number: 20210309897
    Abstract: Disclosed is an adhesive composition containing a resin component, a thermal crosslinking agent, and a curing agent, in which the resin component includes a resin having a maleimide group.
    Type: Application
    Filed: August 14, 2018
    Publication date: October 7, 2021
    Inventors: Kazutaka HONDA, Keiko UENO
  • Publication number: 20210242876
    Abstract: A fluctuation suppression circuit suppresses fluctuation of a reference voltage supplied to a switched capacitor circuit having a differential configuration. The switched capacitor circuit includes an input capacitor for charging an input voltage and a reference capacitor for charging the reference voltage. The input capacitor and the reference capacitor are separately disposed. The fluctuation suppression circuit includes an electric charge supply circuit. The electric charge supply circuit generates an offset electric charge by adopting a predetermined offset voltage, for offsetting a charged or discharged electric charge generated in the switched capacitor circuit, and supplies the offset electric charge to two reference input nodes, which are supplied with the reference voltage, in the switched capacitor circuit.
    Type: Application
    Filed: April 23, 2021
    Publication date: August 5, 2021
    Inventor: Kazutaka HONDA
  • Patent number: 11070226
    Abstract: An A/D conversion device, which operates in one mode including at least one of a ?? mode, a cyclic mode, and a hybrid mode, includes: a first block that processes an analog input signal by a first amplifier; a second block including a second amplifier; a quantization unit that quantizes one of outputs of the first and second blocks; and a control circuit that switches the mode to perform a control corresponding to the mode.
    Type: Grant
    Filed: July 24, 2020
    Date of Patent: July 20, 2021
    Assignee: DENSO CORPORATION
    Inventors: Kunihiko Nakamura, Tomohiro Nezuka, Kazutaka Honda
  • Publication number: 20210075438
    Abstract: An A/D conversion device, which operates in one mode including at least one of a ?? mode, a cyclic mode, and a hybrid mode, includes: a first block that processes an analog input signal by a first amplifier; a second block including a second amplifier; a quantization unit that quantizes one of outputs of the first and second blocks; and a control circuit that switches the mode to perform a control corresponding to the mode.
    Type: Application
    Filed: July 24, 2020
    Publication date: March 11, 2021
    Inventors: Kunihiko NAKAMURA, Tomohiro NEZUKA, Kazutaka HONDA
  • Publication number: 20200333821
    Abstract: A correction current output circuit comprises a first voltage dividing circuit for generating a voltage in which an output voltage from a bandgap reference voltage circuit is divided in multiple stages, first and second correction circuits connected between a power supply and a ground, and a second voltage dividing circuit for dividing the above voltage in multiple stages in a path in which a positive temperature characteristic voltage is generated with the band gap reference voltage circuit. Current output terminals of a the second transistor of the first correction circuit and a first transistor of the second correction circuit are connected to a common connection point, and a current for correcting the temperature characteristic of a reference voltage generation circuit is output from the common connection point.
    Type: Application
    Filed: July 7, 2020
    Publication date: October 22, 2020
    Inventors: Yukihiro TOMONAGA, Kazutaka HONDA
  • Patent number: 10734350
    Abstract: There is disclosed a method for manufacturing a semiconductor device comprising a semiconductor chip having a connection portion and a wiring circuit board having a connection portion, the respective connection portions being electrically connected to each other, or a semiconductor device comprising a plurality of semiconductor chips having connection portions, the respective connection portions being electrically connected to each other. The connection portions consist of metal.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: August 4, 2020
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Kazutaka Honda, Koichi Chabana, Makoto Satou, Akira Nagai
  • Patent number: 10669454
    Abstract: Disclosed is a method for manufacturing a semiconductor device which includes: a semiconductor chip; a substrate and/or another semiconductor chip; and an adhesive layer interposed therebetween. This method comprises the steps of: heating and pressuring a laminate having: the semiconductor chip; the substrate; the another semiconductor chip or a semiconductor wafer; and the adhesive layer by interposing the laminate with pressing members for temporary press-bonding to thereby temporarily press-bond the substrate and the another semiconductor chip or the semiconductor wafer to the semiconductor chip; and heating and pressuring the laminate by interposing the laminate with pressing members for main press-bonding, which are separately prepared from the pressing members for temporary press-bonding, to thereby electrically connect a connection portion of the semiconductor chip and a connection portion of the substrate or the another semiconductor chip.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: June 2, 2020
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Kazutaka Honda, Koichi Chabana, Keishi Ono, Akira Nagai
  • Patent number: 10605836
    Abstract: A voltage detection device comprises a voltage detection circuit, which is a fully-differential type and a control circuit for controlling an operation of the voltage detection circuit. The voltage detection circuit includes a switched capacitor circuit, a differential amplifier, a common mode feedback circuit for controlling a common mode level of an output voltage of the differential amplifier and a bias circuit for supplying biases to the differential amplifier and the common mode feedback circuit. The control circuit controls the voltage detection circuit to execute intermittently a detection operation for detecting the voltage. The control circuit controls the voltage detection circuit to execute a pseudo operation of an execution period, which is shorter than that of the detection operation, during a transition period from a stop state, in which no detection operation is executed, to the operation state, in which the detection operation is executed.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: March 31, 2020
    Assignee: DENSO CORPORATION
    Inventor: Kazutaka Honda
  • Publication number: 20200095481
    Abstract: Disclosed is a method for manufacturing a semiconductor device which includes: a semiconductor chip; a substrate and/or another semiconductor chip; and an adhesive layer interposed therebetween. This method comprises the steps of: heating and pressuring a laminate having: the semiconductor chip; the substrate; the another semiconductor chip or a semiconductor wafer; and the adhesive layer by interposing the laminate with pressing members for temporary press-bonding to thereby temporarily press-bond the substrate and the another semiconductor chip or the semiconductor wafer to the semiconductor chip; and heating and pressuring the laminate by interposing the laminate with pressing members for main press-bonding, which are separately prepared from the pressing members for temporary press-bonding, to thereby electrically connect a connection portion of the semiconductor chip and a connection portion of the substrate or the another semiconductor chip.
    Type: Application
    Filed: November 12, 2019
    Publication date: March 26, 2020
    Inventors: Kazutaka HONDA, Koichi CHABANA, Keishi ONO, Akira NAGAI
  • Patent number: 10429447
    Abstract: A voltage sensing device includes: a multiplexer configured to choose either two corresponding voltages at two voltage sensing target nodes or two corresponding voltages at the terminals of a shunt resistor, and output either the two corresponding voltages at the two voltage sensing target nodes or the two corresponding voltages at the terminals of the shunt resistor, which are chosen by the multiplexer, as a first output voltage and a second output voltage; a differential switched capacitor amplifier circuit including a sampling capacitor and a feedback capacitor and configured to sample the first output voltage and the second output voltage through the sampling capacitor, and output sensing voltages corresponding to the first output voltage and the second output voltage by transferring a charge stored in the sampling capacitor through the feedback capacitor; and an operation control unit configured to control the multiplexer and the differential switched capacitor amplifier circuit.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: October 1, 2019
    Assignee: DENSO CORPORATION
    Inventors: Kazutaka Honda, Tomoya Yamada
  • Publication number: 20190146011
    Abstract: A voltage detection device comprises a voltage detection circuit, which is a fully-differential type and a control circuit for controlling an operation of the voltage detection circuit. The voltage detection circuit includes a switched capacitor circuit, a differential amplifier, a common mode feedback circuit for controlling a common mode level of an output voltage of the differential amplifier and a bias circuit for supplying biases to the differential amplifier and the common mode feedback circuit. The control circuit controls the voltage detection circuit to execute intermittently a detection operation for detecting the voltage. The control circuit controls the voltage detection circuit to execute a pseudo operation of an execution period, which is shorter than that of the detection operation, during a transition period from a stop state, in which no detection operation is executed, to the operation state, in which the detection operation is executed.
    Type: Application
    Filed: June 27, 2018
    Publication date: May 16, 2019
    Inventor: Kazutaka Honda