TECHNOLOGY FLEXIBLE HEATING FILM

From a single surface,
unseen light.

ORIZUMI is a thin, flexible planar heating element.
As one sheet, it makes heat as a surface.
The warmed surface gives off unseen far infrared,
quietly, in the direction the surface faces.
There is no fan and no sound. Here is how it works, starting with light.

How the light works

JPHEAT / TECHNOLOGY

Wire heating example

Structure with heater wire

Heats along the wire

JPHEAT

Planar structure in all current products

A surface structure with no heater wire

THE INVISIBLE LIGHT

Structure diagram, not a measured comparison of temperature distribution or performance.

LINE / SURFACE

Heats as a surface,
not a wire.

All current JPHEAT products share
a planar heating element with no heater wire.
A woven mesh of water-based carbon
makes heat when current flows.

ONE TECHNOLOGY, EVERY JPHEAT

TECHNOLOGY IN MOTIONAuto-play / 24 SEC

Far infrared: how heat travels.

Unseen light
that travels as heat.

How does heat made on a warmed surface travel?

Emission, absorption, conduction.
Three stages, step by step.

01EMISSION
EmittedFrom a surface, as unseen light.
A warmed surface gives off infrared that the eye cannot see. This is radiant heat transfer, a way heat travels without relying on moving air.[2]
02ABSORPTION
AbsorbedWhen absorbed, it becomes heat.
When an object absorbs infrared, its energy turns into heat. Infrared of longer wavelengths tends to be absorbed closer to the surface.[5]
03CONDUCTION
ConductedHeat moves toward lower temperatures.
Heat produced at the surface moves from warmer places to cooler ones. This is called heat conduction. With products used on bedding or floors, conduction from the surface in contact also plays a part.[2]

ICNIRP explains that long-wavelength infrared (IR-C) is absorbed in layers close to the surface of objects. All of this is general physics and does not indicate any action of the product on the human body. Actual warmth varies with the temperature setting and the conditions of use.

Seen for real.

Not along a wire,
but as a surface.

The sample used in the test, and the product as delivered.
Both thermal images show a heating surface made with the same ORIZUMI.

No heater-wire lines appear. The inner surface, apart from the outer edge, can be seen warmed.

About these thermal images

JPT100J: Test sample of the heated mattress pad, Single. An infrared thermal image (thermography) from the test report.
JPT5060: The product, a 50×60 cm heated floor mat. Photographed with a thermal camera while powered.

Infrared thermal image of the surface temperature distribution of the JPT100J test sample. Display colors adjusted.

Temperature scale of the infrared thermal image (27–36.5 °C)

Thermal camera image of the JPT5060 while powered. The inner surface, apart from the outer edge, is shown warmed. Display colors adjusted.

Heat pattern

Wire type (example)

Planar

Heating elementPlanarcarbon

A single sheet

Heater wire0wires

No wire heaters

Heated areaInnersurface

Edge excluded

The structure of the planar heating element is a registered Japanese utility model.Utility Model Registration No. 3241937

The left image is the infrared thermal image from the test report, and the right one was taken of the powered product with a thermal camera. Both are adjusted to the color scheme of this site. The colors are a guide to the surface temperature distribution when each image was taken, and the colors do not map to the same temperatures in the two images. They do not show the temperature or feel during use, or the temperature distribution of other models.

Far infrared, by wavelength.

Beyond visible light,
the far-infrared range.

Infrared is light with a longer wavelength than visible light.
There are several standards for classifying it.

Shown here using the classification of the International Commission on Illumination (CIE).
The JPT100J test sample peak, about 8.35 μm, is in the IR-C range.[1]

Test sample peak8.35 μm

IR-A

IR-B

IR-C 3–1,000 μm

0.781.43101001,000 μm

Logarithmic scale based on the CIE wavelength bands. The peak is a measured value for the JPT100J test sample. It is not a fixed value for all products or all settings. The marker is a visual device that moves along the wavelength scale.

The term “far infrared”

The boundaries of near, mid and far infrared differ by field and use.
BOKEN, a textile evaluation body in Japan, describes 3–1,000 μm as far infrared.
The value here, about 8.35 μm, also falls in that range.[3]

Measuring emission characteristics.

Emission, checked
by wavelength.

Along with the structure, measurement data for a test sample is shown here.
This is something JPHEAT values in how it makes products.

A test sample of the JPT100J was measured at a third-party testing laboratory.
Relative intensity by wavelength is shown as one curve.

Relative emission spectrumJPT100J / Test sample

Redrawn from the table of values in the report (451 points). The curve is a fixed measurement result. The moving point of light and the number are visual aids for reading it. It is not a measurement of any action on the human body.

Measured spectrum peak8.35μm

The wavelength at which relative intensity was highest among the recorded points.

Normal total emissivity0.89

This value shows emission characteristics under the test conditions. It does not indicate any action on the human body or compare power consumption.

Both are results for the test sample. Values differ with product construction and measurement conditions, even where the same heating material is used.

Measurement conditions and how to read the values

Sample: JPT100J test sample (1 piece)
Report: (2026) WT-HWGD-01049 / English version of the same report
Testing laboratory: Wuhan Inspection & Testing Certification Development Group Co., Ltd.
Test method: GB/T 7287-2008 (normal total emissivity: Article 18, Method B / relative emission spectrum: Article 20)
Spectrum measurement date and environment: 2026-09-17 / 20.0 °C, 40% RH (as stated in the report)
Graph range: 2.50–25.00 μm, at 0.05 μm intervals. Shows the recorded range. It does not mean there is no emission outside this range.
Relative intensity: Scaled so the maximum is 1. It does not represent absolute emitted energy, temperature distribution or any action on the human body.

Far infrared, in familiar uses.

Far infrared is
not a special light.

Everything with a temperature gives off infrared.
From charcoal cooking to weather satellite observation.

Far infrared is light that has long been used
in daily life, industry and science.

Each band is a peak wavelength estimated from a typical temperature (Wien’s displacement law), or a detection or observation band published by each organization. Logarithmic scale. The moving marker is an animation along the scale.

01HEATING
Space heatingFloor heating, far-infrared heaters
Infrared given off by surfaces and heaters warms objects without relying on the air. Along with drying paint, it is a long-established use.[6]
02COOKING
Food preparationCharcoal, ovens
Charcoal is said to give off far infrared as it burns, and far-infrared emitters have also been used in home ovens. The emission is absorbed near the surface and creates browning.[7][8]
03DRYING
Drying processesCoatings, food
Far-infrared heaters are used to dry coatings and foods such as shiitake mushrooms.[6][9]
04MEASURING
Temperature readingsInfrared thermometers, thermography
They capture the infrared that objects give off and convert it to temperature. The thermal images on this page were taken the same way.[10]
05WEATHER
Weather observationHimawari geostationary weather satellite
Infrared images in bands such as 10.4 μm let it observe clouds day and night.[11]
06ASTRONOMY
Observing the skyAKARI infrared astronomy satellite
It surveyed the whole sky in far infrared at 50–180 μm, mapping stars and galaxies.[12]

Examples of far-infrared use, based on publicly available sources. They do not indicate the performance of JPHEAT products or any action on the human body.

One material, many ways to live.

The same ORIZUMI,
in six forms.

A pad laid under the sheet, a mat placed on the floor.
The heating material is shared. Size, power supply, surface material and use differ by product.
Please choose by where you will use it.

Choose one for details.

Heated mattress pad, Single

JPT100J

DC 24 V (low voltage)

About 190 × 100 cm

Heated mattress pad, Half

JPT7080J

DC 24 V (low voltage)

About 70 × 80 cm

Heated floor mat

JPT5060

50 × 60 cm

Heated floor mat

JPT60100

60 × 100 cm

Heated floor mat

JPT16060

160 × 60 cm

Heated floor mat

JPT200120

200 × 120 cm

The same heating material is used. Power supply, specifications and use differ by model.

A few more questions.

Far infrared,
understood correctly.

Knowing how it works changes how you see warmth.
Common questions, answered one by one.

How do near, mid and far infrared differ?

They are classified by wavelength, but the boundaries differ by field and use. This page shows the CIE bands IR-A, IR-B and IR-C and the far-infrared range described by BOKEN, stating each standard. Names such as “short wave, medium wave and long wave” also need to be read with the definitions of the field that uses them.[1][3]

Are “near field” and “near infrared” the same?

No. “Near infrared” is a name based on wavelength. “Near field” is a concept tied to things such as the distance between objects. In research on thermal emission, it refers to phenomena that occur across very small gaps. The emission spectrum test on this page is not a test of near-field heat transfer.[4]

Does far infrared glow red?

Far infrared itself cannot be seen by the human eye. The warm colors and wave motion on this page are there to make heating and emission easier to understand. They do not mean that the product glows in the same color.

Does the wavelength tell you how warm it is?

The wavelength value alone cannot tell you how warm something feels. Warmth depends on temperature, the amount of emission, contact, the conditions of use and more. The test shown here measured emission characteristics. It did not examine any action on the human body.

References: general principles and classification

These public sources are used to explain general physical principles and terms. They do not indicate that these organizations endorse JPHEAT products or confirm any action on the human body.

THE JPHEAT DIFFERENCE

Care, even where
you cannot see.

A warm, far-infrared surface.

Unseen light at work,
as warmth every day.

One heating surface.

No heater wire.
The woven mesh itself warms.

Shaped for daily life.

On the floor. On bedding.
To suit each use.

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