Energy and Environment related technologies and solutions:

Drinking Water Quality Analysis Technology

Company data

Name	Microtech Inc.
Address	212-18, Kogasaka, Machida-city, Tokyo 194-0014, Japan
Capital	10,000,000 JPY
Contact person	Tsutomu KANESHIMA, Mr. Phone : +81-80-6310-6591 Fax : +81-42-739-9778 e-mail : kaneshima@microtech.st
Number of employees	10
Date of company foundation	19 May 1987
The type of business	Measuring Instruments Manufacturer

International operation

Number of employees for international operation		1
Overseas offices*	City , Country	Name of company
	None	None

Modality of business transaction

Mark, if applicable	Mode of business	Brief description
	Direct Investment
	Partnership	We plan to start with distributorship agreement and we may give maintenance technology instruction for them to give local service if they are capable and then local manufacture of the products in the future to further develop our local business if possible.
	Export of product	We plan to distribution of our products through local distributors. We may train them or find another local company to locally give maintenance service.
	Licensing of patent

Technology data

Name of technology	Drinking Water Quality Analysis Technology
Field of the technology	Major category: Prevention and destruction of pollution	Sub-category: Land water, Ocean
Conceivable applications	Monitoring of water quality to make sure that your drinking water treatment system is working. Turbidity, color and residual chlorine are main items to measure among those analyzed in potable water. Other applications of our products include processes using filtration with membrane to give better yield and/or to save utilities by digitally showing you of the processed liquid state.
Performance	High linearity over the measuring range between 0.0000- 2.0000 mg/L in turbidity unit. When the ultrafiltered water is measured, this equipment definitely indicate zero due to the particle counting method applied. Therefore, off set is not required.
Technical maturity	Our technology has been proved to be effective from 2004. As a result, over one thousand units are currently being operated at governmental drinking water treatment plants all over Japan. On top of that, a previous similar technology which we invented has seven years more of field experience and thousands more turbidimeter installations of that method being operated in other water treatment facilities. We are an expert in turbidity detection and particle counting in water business.
Competitive advantage	More and more hollow fiber membrane technology has been introduced to produce drinking water. While the conventional turbidity detection method overlooks one-fiber-break leakage, our method can detect it to have much better chance to find pathogens such as Cryptosporidium. Our superior design creates a long laser life and enables you to continuously operate it with infrequent maintenance service.
Conceivable risk	For very low quality water, some models may require frequent service.
Information on patent related to this technology	None

Schematic illustration of the technology

Measuring Principle

The first collective lens converges laser light emitted from the semiconductor laser diode to one point. The converged laser light scatters on each particle suspended in the sample. The other collective lens focuses only the scattered light on the photodiode. The intensity of this scattered light is converted to show a turbidity reading. The direct laser light transmitted through the cell is blocked by the beam stopper to prevent from affecting the scattered light intensity on the photodiode.