Gas Sensor

Technology and products providing safe and comfortable
environments indispensable for everyday life


Nissha is looking at gas detection as a promising new technology to follow its touch sensors. Having welcomed FIS Inc. (the current name is Nissha FIS, Inc.) which has been developing applied equipment for environmental and medical fields with innovative gas sensor technology, into Nissha Group in June 2014. We seek to accelerate our efforts in the research and development of gas sensors.

Outline of gas sensors

Nissha Group gas sensors are built into gas alarms for preventing carbon monoxide poisoning and gas explosions, and even into air purifiers and air conditioners. These are also applied to breath alcohol checkers for the prevention of drunk driving and to fields that support the safety and comfort of automobiles.
Meanwhile, we are developing applied equipment based on the sensors. For example, using the Nissha Group Sensor Gas Chromatograph—a compact, lightweight, and competitively priced device for measuring ultralow parts-per-billion level concentrations of gas—we offer products targeting the environmental field as well as the health care field, such as halitosis analyzers.


Hydrogen Detectors Adopted in Toyota Fuel Cell Vehicle Mirai

Hydrogen detectors developed by FIS have been adopted in the fuel cell vehicle "Mirai" released on December 15, 2014, by Toyota Motor Corporation. Hydrogen detectors are devices designed for hydrogen leak detection. Mirai is fitted with two, which will immediately activate and issue an alert in the event of a hydrogen leak.

Toyota Mirai

Toyota Mirai, “the world’s first mass-produced FCV” * Source: Toyota

Hydrogen detectors installed in Toyota Mirai

Hydrogen detectors installed in Toyota Mirai

Humidification air cleaner "Plasmacluster"

Humidification air cleaner Plasmacluster

Humidification air cleaner Plasmacluster7000 by Sharp Corporation.

The popular humidification air cleaner "Plasmacluster" which Sharp Corporation sells, our gas sensor have been adopted. The gas sensor controls a fan to detects every indoor smell such as the bad-smelling of the cigarette, cosmetics,an alcohol, a food, the pet, etc.


Gas sensors

  • Semiconductor types (SB,SP series)
  • Catalytic combustion types
  • Electrochemical types
  • Infrared types

---Target detection gases---
  • High-selectivity CO/methane, Combustible gas
  • Carbon monoxide, Hydrogen, Carbon dioxide
  • High-selectivity methane/LPG, Fluorocarbon, Ozone

Sensor Modules

Sensor Modules

---Target detection gases---

Carbon dioxide, Ozone, Hydrogen, Ammonia, Combustible gas and Toxic gas


Air purifiers, Air-conditioners, Automobiles, Gas detectors

Finished products

  • Expiration checker (halitosis, alcohol)
  • Battery-powered gas detectors, Refrigerant detectors, Expiration analyzers

Element technology

Equipped with all design technologies necessary for gas sensing

Gas element technology

Semiconductor gas sensors, other gas sensors, and applied equipment in recent years feature ever more advanced sensitivity and accuracy, and are used in an expanding range of fields. For accurate detection of the target gas, however, it is not enough that the sensor alone incorporates excellent technologies. We develop and manufacture everything from gas sensors alone to finished products such as modules, checkers, and analyzers. By being equipped with all elemental technologies necessary for gas sensing, we offer products that meet customer needs—high sensitivity, high accuracy, easy operability, and high reliability—in a broad range of fields including safety, the environment, health, medical care, automobiles and measurement.

Gas sensor design technologies

Material synthesis –The key to gas sensing–

We prepare original materials to manufacture sensors tailored to the properties of the target gas. Material synthesis is the key to gas sensing and an area that best showcases the expertise of Nissha Group.

Micromachining –Development of small size, low power consumption sensors–

Sensor miniaturization presents numerous advantages, from power and cost savings to quick response times and expanded scope of application. Nissha Group uses proprietary micromachining technologies in processes such as electrode machining and the formation of gas-sensing bodies to develop and manufacture small size, low power consumption sensors including MEMS* gas sensors.
* MEMS: Micro Electro Mechanical Systems

Facility design –Manufacturing equipment designed in-house–

FIS factory

Micromachining and manufacturing gas sensors require special processes and equipment. Nissha Group designs its own equipment, such as automatic applicators of gas-sensing materials, to realize inimitable small size, high performance, and high reliability.

Product design technologies

Structural design –The optimal design for each product–

Each component of the gas sensor serves a purpose, down to the last tube. By tailoring various elements such as structure, layout, and materials to the purpose of the product, we can equip the gas sensor with unique functions.

Control circuit design –Realizing high sensitivity and low noise–

Improvements in sensitivity pose a challenge: the gas sensor is that much more susceptible to noise, or gases other than the target gas present in the surrounding environment. Control circuit design is an important means of controlling this noise as well as ensuring user-friendliness of the product including the software. Nissha Group designs original control circuits to present products that play up the strengths and play down the weaknesses of various sensors.

Software development

Nissha Group develops original software tailored to each product for easy operation even without specialized knowledge. The software can be customized according to customer needs.


Please feel free to contact us.

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