Daikin Industries, Ltd.

The University of Tokyo

Hitachi, Ltd.

Sumitomo Seika Chemicals Co., Ltd.

Kohei Sawada

Hiroshi Matsumoto

Takahiro Fujishiro

Kazuyoshi Hoshino

Tadashi Kaji

Osamu Takata

Toru Torii

Ikumi Ikejima

Masaya Shimanuki

A method for evaluating the cytotoxicity of a gas, the method being applicable to cells present in a cell culture medium, namely, to cells other than bronchial- or lung-derived cells. The method including: a gas dissolution step for dissolving a gas in a cell culture medium, and a cell evaluation step for measuring a cell function, in this order.

Method for evaluating cytotoxicity of gas

A gas concentration prediction method which includes: step 1 of exposing a gas to a specimen A which contains a liquid containing a compound, and to a specimen B which includes a liquid containing the compound in a concentration lower than the concentration of the compound in the specimen A, under the same conditions X, and step 2 of measuring a gas concentration a in the specimen A obtained in step 1, and a gas concentration b in the specimen B obtained in step 1, to obtain a coefficient α by calculating the relationship between a and b based on the calculation equation α=a/b.

Gas concentration prediction method

A server device that represents a plurality of service provision servers implements authentication and a SIP message exchange with respect to a SIP server as a representative, and notifies a service provision server of client communication information that is acquired by the SIP message exchange. The service provision server communicates with a client on the basis of the client communication information that is notified from the representative server.

Service network system and server device

Growing community of inventors

Tokyo, Japan

Kohei Sawada