Hochiki Corporation

Jfe Steel Corporation

Mitsui Engineering and Shipbuilding Company Limited

Eco-logy Corporation

X-brain Co., Ltd.

Mitsui Engineering & Shipbuilding Co., Ltd and Eco-logy Corporation

Masamichi Kikuchi

Kazuo Abe

Toshiaki Murata

Kazutoshi Sakurai

Sadataka Yuchi

Naoya Matsuoka

Tomoyoshi Ogasahara

Haruchika Machida

Tomoharu Ishida

Yoshie Nakai

Shuji Kuyama

Yoshinori Kojima

Munemasa Suzuki

Ryuichiro Shikanai

Keisuke Mizobata

A decarburization end point determination method includes: estimating the carbon concentration and oxygen concentration of the molten steel and carbon dioxide gas concentration of exhaust gas in the vacuum chamber by using measurement values of the carbon concentration and the oxygen concentration of the molten steel, a measurement value of internal pressure of the vacuum chamber, and a model formula; correcting a parameter included in the model formula to reduce at least one of a difference between an estimate value and a measurement value of the oxygen concentration and a difference between an estimate value and a measurement value of the carbon dioxide gas concentration of the exhaust gas; estimating the carbon concentration of the molten steel by using the model formula in which the parameter is corrected; and determining timing when an estimate value reaches a target value as the completion time point of the vacuum decarburization treatment.

Decarburization end point determination method, decarburization end point determination device, secondary refining operation method for steel making, and method for producing molten steel

An embodiment of the present invention makes it possible to sterilize a marine animal with use of sea water and atmospheric air, to the extent that the marine animal can be eaten as an unheated food product. A sterilization method in accordance with an embodiment of the present invention is a method for sterilizing a marine animal as an unheated food product, the method comprising the steps of: producing oxygen-enriched water by mixing electrolyzed atmospheric air into sea water; producing sterilizing water by electrolyzing the oxygen-enriched water; and bringing the marine animal into contact with the sterilizing water, the sterilizing water containing HOCl, OHand O.

Method for disinfecting marine animals

A photocatalyst module comprising a substrate, for example, a metallic substrate, a layer of a photocatalyst such as titanium oxide, and a protective layer containing lithium silicate provided between the substrate and the layer of a photocatalyst wherein the protective layer can sufficiently withstand the heat in a step for forming the layer of a photocatalyst by a flame spray coating method and can prevents oxidation and/or decomposition of the substrate is disclosed.

Photocatalyst reaction apparatus

A method comprising a first step for radiating ultraviolet rays of a short wavelength of 110 nm or longer, but shorter than 200 nm to the gas, for example, an air to be treated to generate ozone, a second step for radiating ultraviolet rays of a medium wavelength of 200 nm or longer, but shorter than 300 nm to the air treated in the first step to form active oxygen, and a third step for radiating ultraviolet rays of a long wavelength of 300 nm or longer, but shorter than 380 nm to the air treated in the second step to convert the active oxygen into oxygen molecule in ground state, at least the second and/or third step being conducted in the presence of a photocatalyst comprising particles of titanium oxide of an orthorhombic crystal system or particles of titanium oxide of an orthorhombic crystal system supporting fine particles of another metal.

Process and apparatus for purification of oxygen-containing gas

A terminal of a disaster prevention monitor of the present invention detects the power-on of a terminal and sets flag information. When a polling call from a central monitor (receiver) is directed to a terminal after a power-on operation, the terminal transmits an information fetch request signal which requests the receiver enter an initialization routine for initialization of the terminal information. The receiver transmits an information request command signal to the terminal. The terminal transmits information to the receiver identifying the type of terminal which is responding. Depending on the type of terminal, the receiver may command test operations at the terminal and obtain the test results therefrom in order to generate and store proper initialization information about the terminal.

Disaster prevention monitoring apparatus and method

This invention is directed to an output correction system for an analog sensor which outputs an analog signal corresponding to a quantity of state. The output correction system for the analog sensor comprises a control section which receives an output from the analog sensor obtained under condition where the quantity of state is zero and an output from the analog sensor obtained under pseudo-condition equivalent to a certain quantity of state; a first arithmetic section for calculating a gradient on the basis of the output under the zero condition and the output under the pseudo-condition; a storage section for storing output characteristics defined by said gradient; and a second arithmetic section for calculating a quantity of state corresponding to the output from the analog sensor on the basis of the output characteristics defined by the gradient.

Output correction system for analog sensor

Growing community of inventors

Tokyo, Japan

Masamichi Kikuchi