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Latest update: 10/01/2020 14:25:10

Takachiho Corporation

We are expanding our business using Shirasu volcanic products from southern Kyushu.

We conduct research on Shirasu to develop plaster wall materials that do not contain synthetic pastes, and renovate houses using these products. We are also working on R&D of new functional materials using Shirasu in industry-university collaboration. In 2013 we received a Special Jury Award in the Eco-Products Awards for our products Satsuma Nakagirishima-kabe, Satsuma Nakagirishima-kabe Light, and Shirasu Renovation. We already have customer companies in China and Taiwan and will further extend our sales channels.

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Sales Pitch

We focus on development of new functional materials using “shirasu (white sand),” which is a volcanic ejecta in Southern Kyushu.
Wall materials using shirasu (Products: Satsuma Nakagirishimakabe, Nakagirishimakabe Light, etc.)
Overview: Plastering wall materials using shirasu (volcanic ejecta in Southern Kyushu), which does not contain synthetic glue/ Performance: It was confirmed based on analysis performed by a third-party organization that they absorb formaldehyde, ammonia, acetaldehyde, and other substances. 
We obtained a patent for an interior material in 2002 (3283799) and a patent for an exterior material in 2005 (3734785).
Shirasu foam (Product: Nakagirishima Balloon)
This foam is produced by burning shirasu at high temperature. Its particle size is about 20 μm to 1.4 mm and has an irregular spherical shape. The thickness of the outer shells of the particles is about 3~7 μm regardless of their particle diameters. It has characteristics such as a low bulk specific gravity, non-flammability, a high melting point, low thermal conductivity, colorlessness, no toxic gas generation, and low prices.
Thin film of shirasu
We succeeded in producing thin film of “shirasu,” which is volcanic ejecta in Southern Kyushu, using a sputtering method, which is one of the techniques for producing thin film, in a joint research project with National Institute of Technology, Miyakonojo College. The thin film of shirasu generated (hereinafter referred to as “thin shirasu film") has ion conductivity (about 1 × 10−7S/cm) equivalent to that of conventional thin film made from tantalum. It also has optical features such as light transmission of 90% or more, reflectivity of 10% or less, and a low index of refraction (1.4–1.5) in the visible light range. Thin shirasu film can be used as solid electrolyte, an anti-fogging material, an anti-fouling material, and a material with a low index of refraction.

Other presentation

[Company strength]
Our company develops, manufactures, and sells functional wall materials that adsorb formaldehyde, ammonia, and acetaldehyde. We have worked on a total wall area of over 4,000,000 square meters. We started R&D for new functional materials with industry-university academia collaboration in 2009 and are working to develop unique products and acquire patents. One of our advantages is our accumulated know-how about product planning, R&D, and performance evaluation, mainly using Shirasu.

[Business description]
We are a comprehensive company dedicated to the use of Shirasu magma ceramic material, which is a volcanic product from southern Kyushu. We conduct research on Shirasu to develop plaster wall materials that do not contain synthetic pastes, and renovate houses using these products. We are working on R&D on new functional materials using Shirasu developed in industry-university collaboration.

[Industry]
Construction and manufacturing

[Strength of products/technologies]
(1) Construction materials: We provide deodorant, desiccant, and heat-resistant interior materials that do not use synthetic resins. We also treat heat-resistant and heat-retaining external wall materials with ultra-high durability, and non-slippery, permeable pavement materials that do not accumulate heat. 
(2) Optical materials: We supply materials with 90% or higher transmittance, 10% or lower reflectance, and a refractive index varying from 1.4 to 1.5 in the visible light region.
(3) Electronic materials: Solid electrolytes (ion conductors).
(4) Environmental engineering: Adsorbents for platinum and rare earth elements.


[Representative's message]
The plaster wall materials using Shirasu that we developed have become known as 100% natural materials with high safety, and they have been selected by many customers. Many joint research projects reviewing the functions of Shirasu from many aspects are now clarifying new potentials of this material. We will make use of the knowledge we have acquired so far to use Shirasu as a raw material for unique products with high added value. This will be done using the power of science, and we will achieve materials that we can boast of to the world.

[Company structure for market development/overseas expansion]
Our company has staff in the R&D center to support technical development. Several development projects are now in progress with major companies. We have a system for supporting overseas companies in English and German. We are now developing sales channels to USA, EU, and ASEAN.

[Market share/Ranking]
All of our products and technologies are protected by patents, so there are no competitive products.

[Awards and media coverage]
[Awards]
Good Design Award 2003: Satsuma Nakagirishima-kabe, Shirasu Soton-kabe, and Shirasu-Tonton.
9th Eco-Products Awards, Special Jury Award, 2013: Satsuma Nakagirishima-kabe, Satsuma Nakagirishima-kabe Light, and Shirasu Renovation.

[Media]
Minami-Nippon Shimbun, "Participating in the UMI Project" (November 2013); Miyazaki Nichinichi Shimbun, "Shipping unique wall materials to China" (May 2013); TV Asahi, "Spaceship Earth" (April 2006); etc.


[Authorization/Certification]
ISO 9001 certification (2002).

[Joint research and development]
We have conducted joint research with many universities and research institutes: Yokohama National University, Tokyo University of Science, Tokyo University of Agriculture, Tokyo University of the Arts, Yokohama College of Art and Design, Miyakonojo National College of Technology, Kagoshima Prefectural Institute of Industrial Technology (FY2013).
Pending patents: Patent regarding materials with a low refractive index (as of March 2014); patent regarding the adsorption and collection of platinum and rare earth elements (as of March 2014).


[Factory (domestic)]
Yamada factory (Miyazaki Prefecture)

[Main Clients / Business History (domestic)]
4,000 companies.

[Main Clients / Business History (overseas)]
30 companies: Daijin Building Material (Beijing, China), Building Material (Shenzhen, China), Yitian Group (Shenzhen, China), ACOGREEN (Taiwan), and so on.

[Exhibition History/Information]
In Japan: Product presentation meeting (nationwide).
Outside Japan: Build Eco Xpo (BEX) Asia in Singapore (2014).

This company is recommended by the following support organizations.

Marketing Support Department, SMRJ
Kanto Head Office, SMRJ
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