Kuraray Co., Ltd.

Iida Kensetu Co., Ltd.

Seisuke Takashima

Seishiro Nakamura

Shuhei Nakaji

Osamu Nakaji

Ryousuke Murayama

Masatoshi Iida

Masayoshi Furuhashi

Keiichi Kurokawa

Ken Yamane

Ryosuke Murayama

To compose a composite filter for obtaining water having a high purity usable as water for life and water for medicine from water in which impurities are mixed. Furthermore, to compose an apparatus for obtaining water having a high purity using the filter. Moreover, to configure the apparatus so as to facilitate exchange of the filter. That is, water having a high purity can be obtained by allowing raw water to permeate through a composite filter which consists of a first layermade of fibers, a second layermade of ion exchange resin, a third layermade of activated carbon and a fourth layermade of an unwoven textile. These first layer, second layer, third layer and fourth layer are configured as separate independent filters respectively so that each filter can be exchanged independently. Furthermore, different kinds of filters can be combined dependently on purposes of use.

Composite filter and method and apparatus for producing high purity water using the composite filter

The present invention provides removing agents comprising a solid substance with a weakly acidic or weakly alkaline surface. Since the removing agents can be used for treating body fluid of a patient by, for example, extra-corporeal circulation system thereby effectively removing human immunodeficiency virus and/or its related compounds contained in the body fluid, it is expected that the life of the patient could be prolonged. The significance of the present invention therefore is great.

Method for removing human immunodeficiency virus and/or its related

The present invention provides a method of treating a waste anesthetic gas by contacting the laughing gas contained in the waste anesthetic gas with a catalyst comprising one or more metal oxides selected from the group consisting of ferric oxide, cobalt oxide, cupric oxide, chromium oxide, manganese dioxide and nickel oxide to decompose the laughing gas into nitrogen and oxygen. This method is of practical value for preventing the neighborhood of hospitals from environmental pollution problem.

Method of and system for treating waste anesthetic gas

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Kurashiki, Japan

Seisuke Takashima