Patents by Inventor Keiji MARUBASHI

Keiji MARUBASHI 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: 20210259320
    Abstract: A power supply unit for an aerosol inhaler that causes an aerosol generated from an aerosol source to pass through a flavor source to add a flavor component of the flavor source to the aerosol includes a power supply configured to be dischargeable to a first load configured to heat the aerosol source, and a processing device configured to cause determined power to be discharged from the power supply to the first load in response to a signal from a sensor configured to output the signal indicating an aerosol generation request. The processing device is configured to determine the power based on a time of discharging and a variable different from the time in discharging from the power supply to the first load in response to the signal before a previous time.
    Type: Application
    Filed: February 24, 2021
    Publication date: August 26, 2021
    Applicant: JAPAN TOBACCO INC.
    Inventors: Takuma NAKANO, Yutaka KAIHATSU, Keiji MARUBASHI, Hajime FUJITA
  • Publication number: 20210259321
    Abstract: A power supply unit for an aerosol inhaler that causes an aerosol generated from an aerosol source to pass through a flavor source to add a flavor component of the flavor source to the aerosol includes a power supply configured to be dischargeable to a first load configured to heat the aerosol source and a processing device. The processing device is configured to control discharging from the power supply to the first load in response to a signal from a sensor indicating an aerosol generation request, and the processing device is configured to control the discharging such that a unit flavor amount converges to a target amount based on an output of an element configured to output information on a temperature of the flavor source, the unit flavor amount being an amount of a flavor component added to an aerosol generated for each aerosol generation request.
    Type: Application
    Filed: February 24, 2021
    Publication date: August 26, 2021
    Applicant: JAPAN TOBACCO INC.
    Inventors: Takuma NAKANO, Yutaka KAIHATSU, Keiji MARUBASHI, Hajime FUJITA
  • Publication number: 20210259317
    Abstract: A power supply unit for an aerosol inhaler that causes an aerosol generated from an aerosol source to pass through a flavor source to add a flavor component of the flavor source to the aerosol includes a power supply configured to be dischargeable to a first load configured to heat the aerosol source, and a processing device configured to determine a remaining amount of a flavor component contained in the flavor source based on a time of discharging from the power supply to the first load and a variable different from the time in a period during which the discharging is performed.
    Type: Application
    Filed: February 24, 2021
    Publication date: August 26, 2021
    Applicant: JAPAN TOBACCO INC.
    Inventors: Takuma NAKANO, Yutaka KAIHATSU, Keiji MARUBASHI, Hajime FUJITA
  • Publication number: 20210259323
    Abstract: A power supply unit for an aerosol inhaler that causes an aerosol generated from an aerosol source heated by a first load to pass through a flavor source heated by a second load connected in parallel to the first load to add a flavor component of the flavor source to the aerosol includes a power supply configured to be dischargeable to the first load and the second load, and a first boosting circuit connected between the power supply and the first load.
    Type: Application
    Filed: February 24, 2021
    Publication date: August 26, 2021
    Applicant: JAPAN TOBACCO INC.
    Inventors: Keiji MARUBASHI, Hajime FUJITA
  • Publication number: 20210235769
    Abstract: There is provided a flavor generation device that includes: a control unit configured to acquire a remaining amount value that is a value concerning a remaining amount of power stored in a power supply; a generation unit configured to atomize an aerosol source or heat a flavor source; and an auxiliary device different from the generation unit. The generation unit and the auxiliary device are electrically connected to the power supply. The control unit is configured to suppress power supply to at least one of the generation unit and the auxiliary device when the remaining amount value is higher than a discharge end value representing a discharge end state of the power supply.
    Type: Application
    Filed: April 22, 2021
    Publication date: August 5, 2021
    Applicant: Japan Tobacco Inc.
    Inventors: Keiji MARUBASHI, Takuma NAKANO, Hajime FUJITA
  • Publication number: 20210195961
    Abstract: This flavor-generating device includes: a circuit in which a power source, a first load for atomizing an aerosol source or heating a flavor source, and a second load different from the first load are electrically connected; a control unit configured so as to acquire a request for supply of power to each of the first load and the second load, and so as to control the circuit so that power is supplied from the power supply to each of the first load and the second load on the basis of the request; and a reducing means configured so that, when the control unit simultaneously acquires the request to the first load and the request to the second load, or when the control unit controls the circuit so that the supply of power to the first load and the supply of power to the second load are performed simultaneously, the electric power discharged from the power supply or the electric power amount is reduced to less than a maximum electric power for when the power supply discharges to the first load and the second load s
    Type: Application
    Filed: March 17, 2021
    Publication date: July 1, 2021
    Applicant: Japan Tobacco Inc.
    Inventors: Keiji MARUBASHI, Takuma NAKANO, Hajime FUJITA
  • Publication number: 20210169148
    Abstract: Provided is a suction component generator comprising: a first suction component source for generating a first suction component; a second suction component source for generating a second suction component; a second electrical load that adjusts the amount of the second suction component that is generated from the second suction component source; and a control unit. The control unit is configured so as to control electric power that is supplied to the second electrical load on the basis of the value related to the amount of first suction components that are generated from the first suction component source.
    Type: Application
    Filed: February 23, 2021
    Publication date: June 10, 2021
    Applicant: Japan Tobacco Inc.
    Inventors: Takuma NAKANO, Keiji MARUBASHI
  • Publication number: 20210120884
    Abstract: A control device of an aerosol inhaler includes a load heating an aerosol generation source, in which a temperature and an electric resistance value of the load are correlated. The control device includes: a voltage sensor configured to output a voltage value applied to the load; a constant current circuit configured to output a constant current to the load; and a control circuit configured to acquire the electric resistance value of the load or the temperature of the load based on output of the voltage sensor and the constant current.
    Type: Application
    Filed: October 28, 2020
    Publication date: April 29, 2021
    Applicant: JAPAN TOBACCO INC.
    Inventor: Keiji MARUBASHI
  • Publication number: 20210120881
    Abstract: A power supply unit for an aerosol inhaler includes: a first element having a first electric resistance value connected in series to a load; a second series circuit including a second element having a second electric resistance value and a third element connected in series to the second element and having a third electric resistance value, and connected in parallel with a first series circuit including the load and the first element; an operational amplifier in which one of a non-inverting input terminal and an inverting input terminal is connected to the first series circuit, and the other of the non-inverting input terminal and the inverting input terminal is connected to the second series circuit; and a heating circuit capable of supplying the load with a current larger than a current flowing through the load when a current flows through the first series circuit and the second series circuit.
    Type: Application
    Filed: October 22, 2020
    Publication date: April 29, 2021
    Applicant: JAPAN TOBACCO INC.
    Inventor: Keiji MARUBASHI
  • Publication number: 20210120883
    Abstract: A control device of an aerosol inhaler including a load heating an aerosol generation source, in which a temperature and an electric resistance value of the load are correlated. The control device includes: a voltage sensor configured to output a voltage value applied to the load; a known resistor which is connected in series to the load; and a control circuit configured to acquire the temperature of the load based on output of the voltage sensor. The control circuit is configured such that a resolution of the temperature of the load acquired based on the output of the voltage sensor is 10 [° C.] or less.
    Type: Application
    Filed: October 28, 2020
    Publication date: April 29, 2021
    Applicant: JAPAN TOBACCO INC.
    Inventor: Keiji MARUBASHI
  • Publication number: 20210120882
    Abstract: A power supply unit for an aerosol inhaler includes: a first element connected in series to a load and having a first electric resistance value; a second series circuit including a second element having a second electric resistance value and a third element connected in series to the second element and having a third electric resistance value, and connected in parallel with a first series circuit including the load and the first element; and an operational amplifier in which one of a non-inverting input terminal and an inverting input terminal is connected to the first series circuit, and the other of the non-inverting input terminal and the inverting input terminal is connected to the second series circuit. Each of the first to third electric resistance values is larger than the electric resistance value of the load at a normal temperature or a temperature in a predetermined temperature range.
    Type: Application
    Filed: October 22, 2020
    Publication date: April 29, 2021
    Applicant: JAPAN TOBACCO INC.
    Inventor: Keiji MARUBASHI