United Nations
Industrial Development Organization
Investment and Technology Promotion Office, Tokyo
Energy and Environment related technologies and solutions:
Rainwater Harvesting and Underground Storage
Company data
| Name | TOTESTU MFG. CO., LTD. |
| Address | 6-11, 3CHOME OSAKI SHINAGAWA-KU TOKYO 141-0032 |
| Capital | 60,000,000 JPY |
| Contact person |
Seiichiro Takai CEO ROOM, MANAGING DIRECTOR, TEL: +81-3-3493-5911 FAX: +81-3-3493-1470 E-mail: seiichiro.takai@totetu.com |
| Number of employees | 18 |
| Date of company foundation | 15th of Oct.,1919 |
| The type of business | Production and distribution of construction materials |
International operation
| Number of employees for international operation | 1 | |
| Overseas offices | City , Country | Name of company |
| Beijing, China |
Beijing Dayemu Huanbao Zixun Youxian gongsi Yinhai Build North306room Zhongguancun South Street Jia10 Haidian District Beijing City |
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Modality of business transaction
| Mode of business | Brief description | |
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Direct Investment |
A joint venture(50:50) The most ideal case is that we provide the technology and knowhow, and a local company provides a plant. It is better that materials and parts are provide by local manufactures. Anyway, we remain flexible. |
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Partnership | We are ready to transfer the technology and knowhow under certain conditions.
We make a partnership agreement with a local company first, and start to discuss for eventual technology transfer. |
| Export of product | ||
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Licensing of patent | We will consider if we receive strong request. |
Technology data
| Name of technology |
Rainwater Harvesting and Underground Storage （Universal Underground Storage System） |
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| Field of the technology | Major category: Low carbon and energy conservation, Prevention and destruction of pollution |
Sub-category: Agriculture, fishing and forestry, Industry, Buildings and household, Urban and living environment |
| Conceivable applications | Rainwater dropped in an area can be storage and purified. The clean water can be used for daily life, agriculture, industry, and all application other than drinking water. Only for drinking water, additional processes; sterilization and/or filtration, are required. |
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| Performance |
Fully Equipped With Three Functions 1) Removes contaminants (99.5% can be removed) 2) Completely waterproof underground Tank which is made of plastic unit and waterproof sheet 3) Excellent Resistance to Earth Pressure and Earthquake Water in the storage tank can be supplied not only by power pump, but also by human power. (see schematic illustration of technology). Therefore, this system is applicable for non-electrified areas. Our technology is applicable all over the world, and we believe that our technology can solve water-related issues in many regions. |
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| Technical maturity Past record of introduction |
Past record of introduction Underground tank: 100 units in the last 3 years Purification system: 30 units in the last 2 years These days, our system is valued as a reliable technology in Japan. |
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| Competitive advantage |
The technology which can purify and surely store rain water was originally developed by our company for efficient use of rain water. We have never heard about similar technology. Regarding storage tank, initial cost for our storage system is cheaper than general tanks made of concrete and/or steel. In addition, the work period to construct the tank is much shorter than general ones. Operation cost to purify rain water is more or less on naught. Comparing with purification from waste water or sea water, we have a very big advantage. |
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| Conceivable risk | Though this system consists of conventional technology and every one can easily understand the mechanism of this system, we have know-how to construct sheets for sealing. Inaccurate construction will pose water leakage. | |
| Information on patent related to this technology |
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Schematic illustration of the technology
Universal Underground Storage System
(1)Cell Structure Water Tank |
Features |
(2)Sediment Removal Control Box |
Features |
(3)Plastic unit: Aqua Palace
Features  |
Sample Installation
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System configuration
Proposal of large-scale projects
