Toyo Engineering Corporation

Capy Japan Inc.

Mitsuo Okada

Takanobu Watanabe

Kazuhiro Nakagawa

Kozo Ohsaki

Kazumi Shima

Hisashi Miyakawa

Hideaki Yanaru

Hideyuki Michiki

Yuichi Fujita

Takayuki Kaneko

Tetsu Shimatani

Shima Kazumi

Fumio Hori

Tohru Numaguchi

An application server of an authentication system includes a requesting part that makes a request for possession authentication which is authentication using an authenticator, when the requesting part receives a request for authentication of a user from a terminal, a verifying part that receives an authentication result of the possession authentication and information for verification from the authentication server, and verifies the validity of the authentication server on the basis of the received information for verification, and a providing part that provides a function related to the application to the terminal if the verifying part verifies that the authentication server is valid. The authentication server of the authentication system includes a possession authentication part and a result transmission part that transmits the authentication result of the possession authentication and the information for verification to the application server.

Authentication system, authentication method, and application providing method

In an evaluation device, a receiver part receives, from an authentication device, a hash value of a user identifier for identifying a user, which is generated in a terminal unit used for the login by the user, and information indicating a login environment of the terminal unit, which is encrypted in the terminal unit. A decoding part decodes the encrypted information indicating the login environment of the terminal unit. A risk calculation part calculates an evaluation value that indicates a risk of the login being an unauthorized access based on a statistic related to a degree of similarity between the login environment of the terminal unit and a previous login environment by the user corresponding to the hash value. A transmitter parttransmits a comparison result between the calculated evaluation value and a predetermined threshold.

User authentication method, evaluation device, non-transitory computer-readable storage medium, and user authentication system

The present invention relates to the improvement of a replenishment method of a magnesium-based compound and to the improvement of a double decomposition method, which can be used in a magnesium hydroxide desulfurization method. In the improved replenishment method, the magnesium-based compound is supplemented with water and the ratio of Mg/H O is adjusted to the total Mg/H O in the desulfurization system. In the improved double decomposition method, a tank for use is provided with an inner cylinder which partitions the tank into an inner part and an outer part, but does not reach the bottom of the tank, and a part of the slurry drawn through the bottom of the tank is fed to the outer upper position in the tank.

Method for desulfurizing exhaust gas

A fuel cell power generating system comprising a central hydrogen-generating plant, a plurality of fuel cell power generating units installed respectively at the sites of power demand for on-site power generation, and piping comprising a main pipe connected to the hydrogen-generating plant, branch pipes connecting the fuel cell power generating units to the main pipe, and valves for regulating the pressure and flow rate of hydrogen gas according to the operating condition of the fuel cell power generating units. The fuel cell power generating units are operated according to power demand, and the surplus hydrogen gas is stored in the piping at an elevated pressure to supplement the capacity of the hydrogen-generating plant when the hydrogen gas demand of the fuel cell power generating units exceeds the capacity of the hydrogen-generating plant. The hydrogen-generating plant is able to operate continuously in the steady state for efficient hydrogen gas generation, while the operation of the fuel cell power generating units is controlled according to power demand.

Fuel cell power generating system

A valve including rotor means of which position is rotatably fixed within tubular flowpassage means; rotating magnetic field generating means fixedly positioned around said rotor means; first screw means which are rotated coaxially with the rotor means together with the latter; second screw means which engage the first screw means and are movable in an axial direction of the screw without being rotated for itself by the rotation of the first screw means; valve body means connected to the second screw means; and valve seat means in engagement with the valve body means, whereby the rotor means are rotated by the action of the rotating magnetic field generated by the rotating magnetic field generating means, said rotation causes the second screw means to be moved in an axial direction of the screw, and said movement is transmitted to the valve body to adjust a degree of opening and closing of the valve.

Valve

Growing community of inventors

Tokyo, Japan

Mitsuo Okada