Lg Electronics Inc.

Sunbio2 Co. Ltd.

Jej Co., Ltd.

Seong-Moon Cho

Don-Hee Lee

Junbae Lee

Hyung-Ki Hong

Kwy-Ro Lee

Youn-Jae Lee

Hyun-Ho Oh

Min-Jae Jung

An apparatus and method for precisely measuring various biological information of a user's body by using a single measuring apparatus enable precisely and effectively measuring biological information including body fat, pulse and a blood vessel aging degree. By measuring an infrared absorbance or infrared rays irradiated to a measurement target according to a modulation and tuning method and obtaining the information with reference to supplementary biological information obtained from a user, the plurality of biological information can be precisely measured at a low driving voltage through the modulation and tuning method by using a single infrared light source. Also, the measuring apparatus can be reduced in size by simplifying its construction and can be effectively integrated into various device.

Apparatus and method for measuring biological information

The present invention relates to a gas concentrator, which produces concentrated gas by applying a pressure difference to adsorbent having selective adsorption property to specific gas from mixed gas and by separating the specific gas. According to the present invention, there is provided the gas concentrator, comprising a filter for filtering out impurities from the mixed gas; a plurality of adsorption beds containing the adsorbent for separating the specific gas from the mixed gas supplied via the filter and including a backflow prevention means formed on channels through which the separated gas is discharged therefrom; a small pipe for interconnecting the channels at production stages of the adsorption beds with each other to perform processes of cleaning and applying vacuum pressure to the adsorption beds; a vacuum pumping means which is connected to a channel for supplying the mixed gas to the adsorption beds and generates the pressure difference caused from a difference between the a vacuum pressure and a pressure of the mixed gas; a valve means comprising a channel base of a single body formed with channels respectively connected to the adsorption beds, the channel for supplying the mixed gas, and the vacuum pumping means, and solenoid drivers mounted in the channel base for switching the channels formed in the channel base in order to alternately apply the vacuum pressure and the pressure of the mixed gas to the adsorption beds; and a gas supplying means for controllably supplying the mixed gas supplied from the filter to the gas separated and produced from the adsorption beds and then supplying a target space with the gas of which flow rate and concentration is controlled.

Gas concentrator

A gas separation apparatus comprises: at least two absorption beds respectively including an absorbent for absorbing certain gas; at least two three-way valves respectively installed on conduits for respectively connecting the absorption beds and outside of the apparatus; and a pump respectively connected to each end of the absorption beds and the three-way valves, for discharging gas absorbed by the absorbent and gas that is not absorbed by the absorbent. Gas that is absorbed by the absorbent and gas that is not absorbed by the absorbent are discharged by the single pump, thereby having a simple structure and reducing an installation space and a fabrication cost.

Gas separation apparatus

The present invention relates a method for concentrating a gas by applying a pressure difference to an adsorbent and an apparatus therefor, and particularly, a method for producing an enriched gas in a large amount by introducing a continuous production into every step of the process focusing on productivity rather than concentration of the product gas and an apparatus therefor. The present invention relates to a method incorporating the vacuum swing adsorption method with the pressure swing adsorption method, particularly the rapid pressure swing adsorption method which can continuously produce a desired material in a depressurization step to improve recovery rate of the desired material and productivity and an apparatus therefor. The apparatus according to the present invention is advantageously applied in a small size machine rather than for industrial uses. Particularly, when applied in a small size oxygen concentrator, it can be used in electric home appliances, air conditioners and water purifier, as well as medical products.

Growing community of inventors

Anyang-si, South Korea

Seong-Moon Cho