An advanced photocatalyst
with the industry's leading
antiviral and antibacterial effects

The advanced photocatalyst minacoatⓇ
is one of the top quality
visible-light-driven photocatalysts
in the industry and is clearly different
from conventional photocatalysts.

What is photocatalyst…?

Photocatalysts decompose and remove viruses and bacteria by reacting with light on the caoated surface. Since it uses only light energy, no running costs are required. It has antibacterial, antiviral, deodorizing, antifouling, and mold-proof properties and exerts stable effects for the purification of exhaust gas and water treatment.

Differences compared to conventional photocatalyst

Problems of conventional photocatalyst

It reacts only to ultraviolet radiation, which contains only 3 to 4% of sunlight.

Since photocatalysts decompose almost all organic substances by OH radicals having strong oxidation power, they cannot be used for fibers, plastics, and paper.

Photocatalytic technology used in minacoatⓇ

Research and development of photocatalysts that react even with visible light and titanium dioxide coated with apatite, which can be used for textiles, paper, and plastics

Research and development of hybrid photocatalysts that can be fixed without binders by using titanium hydroxide

*binder: adhesive applied before installation as a base

Visible light-activated, binder-less, and apatite-coating properties enable application to any material, achieving extremely high performance in the removal of indoor antiviral, antibacterial, deodorizing, mold-proof, and volatile organic compounds (VOCs).

Why you should choose minacoatⓇ

Strong antiviral and antibacterial effects proven by solid evidence

We have conducted some tests at the Japan Textile Products Quality and Technology Center and the Kitasato Research Center for Environmental Science, and demonstrated inactivation of viruses and bacteria such as the new coronavirus (SARS-CoV-2), influenza A virus, feline calicivirus, E. coli, and Staphylococcus aureus.

Unlike alcohol or chlorine-based agents, the effect lasts longer.

Photocatalysts including minacoatⓇ keep decomposing viruses and bacteria when exposed to light, so unlike alcohol, which only works once, there is no need for repeated disinfection.

Industry's highest reaction area in visible light, and is able to disinfect even in the dark

minacoatⓇ consists of a visible-light-driven photocatalyst, and that can facilitate photocatalysis with in-house light sources even without sunlight (ultraviolet).

Contains apatite that keeps viruses away

minacoatⓇ decomposes viruses and bacteria by reacting with light without adsorbing them. Competitors' products absorb viruses and bacteria, so viruses and bacteria are attracted to the surface of the mask.

Easy application: Binder-less and requires no masking.

minacoatⓇ is applied in a thin film of less than 1 μm, maximizing its photocatalytic performance. This product can be coated on leather and cloth, which is impossible with competitors' products, and also prevents deterioration caused by ultraviolet rays.

minacoatⓇ also features...


Applying minacoatⓇ to smelly shoe boxes decompose the causative bacteria and eliminate the odors.


The picture on the right shows the minacoatⓇ coated plastic belt of a new escalator after one month of application. You can tell that the belt is highly stain resistant and remains white.


The picture on the right shows the plaster board surface four and a half years after the mold removal. Coating with minacoatⓇ after mold removal will keep it clean.

Valid evidence proven by reliable institutions

The result of COVID-19 inactivation test on minacoatⓇ
Test summary

The new coronavirus (SARs-CoV-2) shared from the National Institute of Infectious Diseases was incubated on a glass piece (25cm2) coated with minacoatⓇ and left under light irradiation (500 Lx) and in the dark for 4 hours before measurement. The table shows the test result.

In summary...

The test was conducted using the new coronavirus shared by the National Institute of Infectious Diseases, rather than an alternative virus. Very few institutions have actually conducted tests with the new coronavirus, but Opeth was one of the pioneers in the industry to conduct the test.

Inactivation test results of other viruses and bacteria

Inactivation of the following viruses and bacteria has also been demonstrated.

  • Influenza A virus
  • Feline calicivirus
  • Blue mold
  • Aspergillus niger
  • Escherichia coli
  • Staphylococcus aureus
  • Spore forming bacteria

Test laboratory: Kitasato Research Center for Environmental Science

Inactivation test results of harmful substances

In addition to bacteria and viruses, NOx, SOx, and VOC can also be decomposed.

Test laboratory: Kanagawa Institute of Industrial Science and Technology

Introduction of major publications and announcements

Fine Chemical November number (2011)

“Development and Evaluation of Antibacterial and Antiviral Materials, and Processing Technology” (2013)

The latest information in simple terms Photocatalysis Experimental Methods (2021)

The latest information in simple terms
Photocatalysis Experimental Methods

2009 In March 2009, AIST announced that it developed a low-cost, visible-light-driven photocatalyst that can be used for fibers and plastics (patented)–which does not look yellowish, and whose acetaldehyde decomposition performance and antibacterial effect were greatly improved.
2009 Titanium hydroxide developed by Nagamune Industry Co. in 2009, (patented) played a role of a binder to combine apatite-coated titanium oxides with each other. As a result, a thin film of titanium oxide was evenly formed on the target material to increase the adhesion. This was how minacoatⓇ was born. minacoatⓇ was first released in 2010. First application sites: toilets in JR Tokyo Station and smoking rooms in a plant of Honda Motor Company. *Japanese trademark “ミナコートⓇ " Chinese trademark "美奈力Ⓡ ".
2011 In August 2011, the advanced photocatalyst minacoatⓇ series was approved under the trial order authorization system of Sagamihara City. In October 2011, the usefulness the advanced photocatalyst minacoatⓇ for avian influenza was announced at the Japanese Society of Animal Hygiene. In November 2011, “Development and application of advanced visible-light-driven apatite-coated photocatalyst minacoatⓇ” was published in Fine Chemical (monthly magazine).
2012 In February 2012, Opeth was introduced as a supplier in the report on the results of METI's “Project for supporting regional companies in creating innovations.”
2013 In April 2013, Photocatalysis International Research Center (PIRC) was established in Tokyo University of Science. In October 2013, minacoatⓇ was introduced as the latest technology of visible-light-driven photocatalyst in “Development and Evaluation of Antibacterial and Antiviral Materials, and Processing Technology” published by Technical Information Institute.
2015 In May 2015, minacoatⓇ was introduced in the report on “antibacterial, mold prevention, and antivirus measures” issued by Toray Research Center, Inc.
2021 In March 2021, minacoatⓇ appeared in the magazine “The latest information in simple terms Photocatalysis Experimental Methods” published by Kitano Shoten and its English version published in December 2021.

minacoatⓇ mist coating is easy to apply and has reliable effect

Its application is easy 3 steps!

Even small areas can be covered with photocatalyst by spraying 2.5μm particles with a dedicated atomizer. minacoatⓇ does not contain binders thanks to our special technology, so it does not require curing of glass and can be applied quickly and easily.

Application examples

To prevent infection: Room/vehicle interior coating
For antibacterial use: Bathroom coating

Testing three years and seven months later, the antimicrobial effect remained!

For odor/stain prevention: Smoking room coating

We’ve coated with minacoatⓇ and cleaned with Kabi Knock Power 2.

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