2308V1

Introduction of E-ThermoGenTek Co. Ltd.
and development/practical application ofstand-alone power supply based on ourunique thermoelectric generation
technology.
E-ThermoGenTek Co. Ltd.

1

Management Philosophy
Based on our extensive experience in the semiconductor business and our unique
technology related to thermoelectric power generation, we are working to popularize
thermoelectric power generation, which efficiently converts and recovers the vast amount of
low-temperature waste heat (about 300°C or less) into electrical energy. By promoting
the efficient use of energy, we will achieve the SDGs(Sustainable Development Goals) andcontribute to building a sustainable society.
250°C Heat resistantmodule (Main theme ofour company)(Tcal/y)150°C Heat resistantmoduleCurrent status of unused
low-temp. exhaust heat
（ Amount of waste heat by industryand temperature ）Low-temperature waste heat in different areas ofsociety2Company ProfileCompany
nameCEO

E-ThermoGentek Co., Ltd.
Representative Director Michio Okajima

CompanyLocations【Head Office】
601-8047 102 Kujo CID Building, 13 Higashikujo
Shimotonoda-cho, Minami-ku, Kyoto（c/o Asset Witz Co., Ltd.）【R&D Osaka University base】
565-0871 2-1 Yamadaoka, Suita City D52, IndustryUniversity Co-Creation Building D, Osaka University【R&D Katsura base】
615-8245 Kyoto University Katsura Venture Plaza North
Building 202, 1-36 Goryo Ohara, Nishigyo-ku, Kyoto
City

EstablishedFebruary 26,2013

Capital

376 million yen◎ We are planning a third-party allotment of newshares within this fiscal year.

京都市
ベンチャー企業⽬
利き委員会

A -rank
certification
Certified inMarch 2018

Certified inOctober 2022

3

Our proprietary technology
Practical application of flexible thermoelectric power generation
module "Flexiina"! （ First in the world︕ ）Novelty
Module structure （Basic Patent︔Patent no.5228160）■ High-speed, high-density assembly of existing BITE thermoelectric components on ultra-thin
flexible substrates using mature semiconductor technology ⇒Cost reduction■ High energy recovery efficiency is made possible by flexible module structures that may be
flexibly curved and attached to cylinder-shaped heat sources ⇒Elevated performance⇒ Thermoelectric generation with a realistic cost-to-performance ratio has beenrealized for the first time!! !
Received inquiries from over 300 companies!!

Conventional thermoelectric power generation module

Ceramic PCB

thermoelectric element

Flexible thermoelectric
power generation
module“Flexiina”
standard sample＜Thick and Rigid＞
4

Development/Practical Application Case:1

IoT

IoT stand-alone power supply-S1 series integrated with 「Flexiina」:Wrap-around type built for exhaust pipes.(First in the world︕）
S1-P1B: 10ｍW(3.3/5V)〔Installation diagram〕

S1-P2B: 180ｍW(9/12V)

S1-P1「Flexiina®」

Power supply25A pipe

Heat dissipation fin(Built-in Flexiina)(Unit:mm)
Lead wire
lengthScrews(Accessory)
Connector
JST- PHR2〔Power circuit diagram〕 Various
Power circuit

Sample under sale[Features]

Flexiina

Secondarybattery(Rechargeable)※1sensorsvoltage conversion
circuit(DC-DC converter)

Datalogger（AD Convertor ）WirelessModule※2

1.No need to replace batteries ⇒ Reduced maintenance and management costs
2. High output and cost-effective performance⇒ Enables high-frequency samplingand sensing at high vibration frequencies ⇒ Failure prediction is possible
3. Compact and easy to install ⇒ Easy to consider and implement new IoT systems
5IoT oriented Stand-alone power supply 「S1series」
Powered by 「Flexiina」

IoT○ Installation example of Sensor and stand-alone power supplies for plants
WirelessmoduleFlow sensor
Supply line

Pressure sensor（gas,steam,water）

Plant piping

Data logger

Data logger

Temperature
sensorVibration
sensorFlowsensor

Flowsensor
WirelessmoduleData logger

WirelessmoduleChimney

Pressure
sensor

Supply line

（gas,steam,water）
Wirelessmoduleheat exhaust pipe(steam, gas)

Data logger

Flowsensor

Temperature
sensorVibration
heat source(Industrial furnaces, boilers, sensor
heat pumps,electric heating equipment,motors, etc.)＝6Flexiina incorporated Stand alone power supply（S1-P1B）Demo kit
CompositionVoltage･Power meter

Output voltage︓3.3V

Basic unit

Power circuit

Flexiina
Temperature controller
Additional option（A） Power circuit with communication module （B）Flexiina o/p measurement Box
Main Components

Main Components（C）Additional sensor
Main Components
Vibration (acoustic) sensor
Temperature sensor

USB receiver

AC current sensor
DC voltage current sensor: Coming soon

Power circuit bodyControl board
Communication
moduleO/P voltage︓3.3V

Temperature sensor（Attached by default）

Flexiina
O/P measurement box（ with power supply cable ）* Only one additional sensor can be attached to the power
supply circuit connected with communication module (2sensors can be measured and displayed together with thetemperature sensor attached to the power supply circuit
connected with communication module).*When measuringwith a different sensor, it is necessary to change the settingsof the power supply circuit connected with the communication
module (will be handled by temporarily returning the device
to our company).

＊The shape of the device may be slightly different from the image.
＊This product is a sample for simple operation check and operation demonstration of Flexiina IoT stand alone power supply.
Please do not use it for managing data measurement in the actual manufacturing environment.

7

Development/Practical Application Case:2
Development of a stand-alone power supply for IoT that uses
an exhaust heat-based flat heat source. （ First in the world︕ ）S1-F101（ High output type ）Exterior
appearance

IoT

S1-F102（Low output type）

Waterproof seal
Flexiina

Top plate

Base plate
Powersupply circuit

Sample sales will start soon
OutputHeat source/ambientenvironmentSize

1.5mW／3.3V（5V） （ΔT=15℃）
4mW／3.3V（5V） （ΔT=25℃）

0.06mW／3.3V （ΔT＝10℃）
0.12mW／3.3V （ΔT=15℃）

Flat heat source (~85°C) Heat source/ambient
temperature difference of 15°C or more

Flat heat source (~85°C) Heat source/ambient
temperature difference of 10°C or more・Flexiina︓70㎜×70㎜、t50㎜
・Power circuit︓Φ38㎜、t17㎜

・Flexiina︓61㎜×44㎜、t25㎜
・Power circuit︓Φ38㎜、t17㎜（仮）[Application] For factory IoT (heat, vibration, other)〔Features〕
Can be easily attached to flat heat sources ▶ Ideal for predictive diagnosis of motors, compressors, pumps,industrial furnaces, etc.
1.

Output is possible with even modest temperature difference (ΔT = 15°C or more)

2.

No battery replacement required! ▶ It is possible to reduce maintenance and management costs

3.

Applicable to various general-purpose wireless sensors ▶ Easy to consider and introduce new IoT systems.

8Development/Practical Application Case:3
Stand-alone power supply utilizing residual heatfrom hot water. （ First in the world︕ ）〔Installation drawing〕

LEDillumination

OUT

Heat dissipation fin(Built-in Flexiina)

Heat dissipation fin(Built-in Flexiina)

Power supply box

INLEDIlluminationPowersupplybox[Application]
Lighting, surveillance camera,various sensors, communication systems etc.

〔specification〕
Output: 24V, 20-40W/m(Temperature difference between Heat source and ambient:60℃-80℃)(Pipe diameter φ267.4mm (250A), ground contact)[Features]
1. Electricity production from effluent that was previously unusable

2. Electricity can be easily harvested even outdoors (no need to install electric wires,
which was an issue in the past due to the cost incurred)
3. Works with air cooling (water cooling and thereby pipe laying costs are eliminated)
9

Development/Practical Application Case:4
Energy-saving stand-alone power supply using
Energy saving
residual steam （ First in the world︕ ）"Thermoelectric heat exchange tubes" for tube heat exchangers〔Installation drawing〕
CoolingwaterINDCOUT OUT
SteamIN
steam heat exchanger(shell & tube type)

ACPower
conditioner

Outputvoltage
AC100VAC200V〔Specification〕
Output : 40kW (AC100/200V)

Power generation from hot water
Hot water
Cooling water⇒ Output

Power generation from steam
Cooling water

Steam⇒ Output〔Application〕
Powerplant (motors, control panels, etc.)[Features]
1. Excellent cost performanceHigh heat recovery efficiency due to unique structure and manufacturing method- Significantly reduces maintenance costs as there are no moving parts likegenerators
2. High reliability due to seamless pipe
3. High degree of design freedom (supports a wide range of heat source sizes)
10Development/Practical Application Case:5

Energy saving

Development of a stand-alone power supply system with a core-type heatcollector that uses exhaust gas heat(first in the world!)〔System configuration 〕〔TEG unit configuration

Exhaust duct

Outertube

Flexiina
Inner dia：85.1mm

TEG unit

Circular duct

Cold water
Out

190

Cooling water out
Cooling water in

Output：AC100V,
DC24Vetc.
295
Circular duct

Power unit

φ100
SteamStorage battery

Cold waterIn
Weight：12.8 kg（Including water）▲Exterior imageHeat
collectingcore

Coolingwater Innertube

ExhaustCoolingwater▲ Cross section of power generation unit

※1) Multiple units can be easily configured.
Example) For 2-unit system ⇒ 400 W(Exhaust air volume 600 m3/h, cooling water volume 10 L/min)※2) Optimal design is possible according to the allowablepressure drop of the customer's exhaust system.

〔Specification example〕
Power generation capacity : 200 Ｗ（※１）
Pressure drop ︓ 200 Pa以下（※２）[Use]Factory lighting(conditions)Power supply for
Exhaust: 350℃ 300 m3/h, cooling water: 20℃ 5 L/min
surveillance cameras〔Features〕
1. 1. High-efficiency heat recovery from exhaust waste heat thanks to the Battery charging, etc.
unique structure of the core type heat collector core and the “Flexiina”.
2. Water-cooled high-efficiency power generation.

11

Future vision
Energy management system with the concept ofʻLocal production for local consumptionʼ using residual heat
VPP（Virtual Power Plant)
Flexiina incorporated Stand‐alone Distributed power
generation system by utilizing factory waste heat.
Flexiina

Flexiina

Flexiina

Flexiina

EMS

Sun light(Energy Management System)
Flexiina

Fuel cell

Flexiina

Flexiina
Flexiina

ElectricVehicle
12