Japan Tobacco Inc.

Japan Tabacco Inc.

Kazuma Mizuguchi

Takeshi Akao

Hajime Fujita

Manabu Yamada

Masayuki Tsuji

Takuma Nakano

Ryoji Fujita

Keiji Marubashi

Takao Aradachi

Control device for aerosol inhalation device, includes operational amplifier including output terminal configured to generate voltage according to voltage applied to load configured to heat aerosol source and having correlation between temperature and electrical resistance value, control unit including input terminal and configured to perform processing based on voltage applied to the input terminal, and voltage dividing circuit configured to electrically connect the output terminal of the operational amplifier and the input terminal of the control unit. Power supply voltage of the operational amplifier is higher than power supply voltage of the control unit, and equals voltage applied to aerosol generation circuit including the load, and one of inverting input terminal and noninverting input terminal of the operational amplifier is electrically connected to the aerosol generation circuit.

Control device for aerosol inhalation device and aerosol inhalation device

In order to provide an aerosol generating device which can determine, at an earlier stage, the occurrence of depletion or shortage pf the aerosol source, this aerosol generating device () includes: a storage unit (A) which stores an aerosol source or an aerosol substrate (B) which holds an aerosol source; a load () which atomizes the aerosol source by generating heat with power supplied from a power supply (); a sensor () which outputs values related with the temperature of the load (); and a control unit (). The control unit (), in response to an aerosol generation request, supplies power from the power supply () to the load () to carry out a power supply cycle, and, on the basis of an index based on the deviation of the output values of the sensor () in a single power supply cycle, determines the occurrence of depletion or shortage of the aerosol source in the storage unit (A) or the aerosol substrate (B).

Aerosol generating device and method and program for operating this

There is provided an aerosol generation apparatus capable of determining whether an aerosol source is insufficient in quantity while suppressing variation in a generation quantity of aerosol in a period during which a user inhales aerosol. An aerosol generation apparatus comprises a power supply, a storage section that stores an aerosol source or an aerosol base material that retains the aerosol source, a loadthat atomizes the aerosol source using heat generated by electric power from the power supplyand in which an electric resistance value changes depending on a temperature, a first sensorB,D that outputs a value related to the electric resistance value of the load, a second sensor that generates an output upon receipt of a user's request with regard to an aerosol generation, a first circuitthat is connected in series between the power supplyand the load, and includes a first switch Q, a second circuitthat is connected in parallel to the first circuit, includes a second switch Q, and has an electric resistance value higher than an electric resistance value of the first circuit, and a control sectionthat controls the first switch Qand the second switch Q, in which the control sectionis configured to estimate a residual quantity of the aerosol source based on the value output by the first sensorB,D when the second switch Qis in an on state, and to control so that a period during which the output is generated by the second sensor includes a time point at which the second switch Qbecome an on state when the first switch Qis in an on state or a time point at which the second switch Qturns an on state and the first switch Qturns an off state.

Aerosol generation apparatus, and method and non-transitory computer-readable storage medium storing program for operating same

Provided is an aerosol generation device that has few necessary structural elements and highly accurately detects shortage of an aerosol source. An aerosol generation devicethat comprises: a power sourcea storage partA that stores an aerosol source or an aerosol substrateB that holds an aerosol source; a loadthat has a temperature-variable electrical resistance value and, by generating heat due to supply of power from the power sourceatomizes aerosol source supplied from the storage partA or aerosol source held by the aerosol substrateB; a circuitthat electrically connects the power sourceand the loadand a control partthat, on the basis of a first voltage value that is the value of the voltage applied to the entire circuit and a second voltage value that is the value of the voltage applied to a part of the circuit at which the applied voltage changes as a result of changes in the temperature of the loaddetermines whether there is a shortage of aerosol source that can be supplied from the storage partA or aerosol source held by the aerosol substrateB.

Aerosol generation device, and method and program for operating same

An aerosol generating device which can infer or detect the state of at least one of a storage and a receptacle for an aerosol source, the aerosol generation device includes: a load which atomizes the aerosol source by generating heat with power supplied from a power source; a sensor which outputs values relating to the temperature of the load; and a controller. The controller infers or detects the state of at least one of the storage and the receptacle based on at least an output value of the sensor in a first power supply cycle, an output value of the sensor in a second power supply cycle, or a value relating to behavior of the temperature of the load in the second power supply cycle.

Method and program for operating an aerosol generating device by early determination of an amount of an aerosol source

Provided is an aerosol generation device that can more accurately detect shortage of an aerosol source after a cartridge has been replaced. An aerosol generation deviceA that comprises: a power source; a loadthat has temperature-resistance value characteristics, has a temperature-variable electrical resistance value, and atomizes an aerosol source by generating heat due to supply of power from the power source; memorythat stores the temperature-resistance value characteristics; a sensorthat outputs a value that is related to the resistance value of the load; and a control partthat, on the basis of the correspondence between the output value from the sensorand an estimated value for the temperature of the loadthat corresponds to the output value, calibrates the stored temperature-resistance value characteristics.

Provided is an aerosol generation device that suppresses the effect that errors in the production of structural elements have on the accuracy with which shortage of an aerosol source is detected. An aerosol generation device that comprises: a power source; a load that has a temperature-variable electrical resistance value and atomizes an aerosol source by generating heat due to supply of power from the power source; a first circuit that is used for the load to atomize the aerosol source; a second circuit that is connected in parallel to the first circuit, has a higher electrical resistance value than the first circuit, and is used to detect voltage that changes as a result of changes in the temperature of the load; an acquisition part that acquires the value of voltage that is applied to the second circuit and the load; and sensors that output the value of the voltage that changes as a result of changes in the temperature of the load.

Aerosol generation device and production method for aerosol generation device

Provided is an aerosol generation device that suppresses the effect that errors in the production of structural elements have on the accuracy with which shortage of an aerosol source is detected. An aerosol generation device that comprises: a power source; a loadthat has a temperature-variable electrical resistance value and atomizes an aerosol source by generating heat due to supply of power from the power source; a first circuitthat is used for the loadto atomize the aerosol source; a second circuitthat is connected in parallel to the first circuit, has a higher electrical resistance value than the first circuit, and is used to detect voltage that changes as a result of changes in the temperature of the load; an acquisition part that acquires the value of voltage that is applied to the second circuitand the load; and sensorsB,D that output the value of the voltage that changes as a result of changes in the temperature of the load

An aerosol generating apparatus comprises: a power source; a load configured to have an electric resistance value that varies according to a temperature and atomize an aerosol source or heat a flavor source when supplied with power from the power source; a feed circuit that is electrically connected to the power source and the load and includes a voltage conversion unit capable of converting an output voltage of the power source and outputting the converted output voltage to the load; and a control unit configured to acquire a measurement value corresponding to a current value of a current flowing through the load and control power supply to the load, wherein, in accordance with the measurement value, the control unit controls the feed circuit such that the measurement value becomes smaller than the target value or values included in the target range.

Aerosol generating apparatus

To provide a control device for an aerosol inhalator capable of compensating changes in temperature of a heater due to inhalation. A control device for an aerosol inhalator includes a first sensor for obtaining a first value relating to a temperature of a load which atomizes an aerosol source stored in a reservoir or retained by an aerosol base using heat generated by supply of electric power, a second sensor configured to detect an inhalation, and a controller, wherein the controller is configured to determine, based on a second value based on the first value and a threshold, whether the aerosol source in the reservoir or the aerosol base is depleted or insufficient (A), and correct at least one of the second value and the threshold when detecting the inhalation () and, in the determination, compare the second value and the threshold, at least one of the second value and the threshold being corrected ().

Aerosol inhalator, control device for the same, method of controlling the same, and method of operating control device for the same and program

An aerosol generating apparatus comprises: a power source; a load configured to have a resistance value that varies according to a temperature and generate an aerosol by atomizing an aerosol source or heating a flavor source when supplied with power from the power source; a sensor configured to include a resistor connected in series to the load and output a measurement value that is a current value of a current flowing through the resistor or a voltage value of a voltage applied to the resistor; and a control unit configured to control power supply from the power source to the load and receive output from the sensor, wherein the resistor has a resistance value that is set such that responsiveness of a change in the measurement value to a change in a temperature of the resistance value belongs to a prescribed range.

An aerosol generating apparatus comprises: a power source; a load configured to have an electric resistance value that varies according to a temperature and atomize an aerosol source or heat a flavor source when supplied with power from the power source; a sensor configured to output a measurement value corresponding to a current value of a current flowing through the load; and a control unit configured to control power supply from the power source to the load and perform a determination operation for determining that there is an abnormality if the measurement value becomes smaller than a threshold value within a determination period, on a time axis, in a feeding sequence during which power is supplied from the power source to the load, wherein the control unit adjusts a length of the determination period based on the measurement value.

Aerosol generating apparatus and method for controlling aerosol generating apparatus

An aerosol generating apparatus includes a load that generates heat upon receipt of electric power from a power supply and atomizes an aerosol source, an element that is used to acquire a value related to a temperature of the load, a retention unit that retains an aerosol source supplied from a storage to allow the retained aerosol source to be in a feasible state of being heated by the load, and a control unit configured to distinguish between a first state of the aerosol generating apparatus in which the aerosol source stored in the storage is insufficient in quantity, and a second state of the aerosol generating apparatus in which the storage is capable of supplying the aerosol source while the retained aerosol source is insufficient in quantity, on the basis of a change in the value related to the temperature.

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Tokyo, Japan

Kazuma Mizuguchi