Organo Corporation

Asahi Kasei Microdevices Corporation

Satoshi Kasahara

Mitsuru Yoden

Kenichi Sato

Mikio Sugano

Yusuke Suwa

Chika Kenmochi

A sound wave signal processing apparatus may include: an extraction unit configured to extract, from a sound wave signal, a plurality of frequency signals indicating respective frequency components of a plurality of frequency bands including different set frequencies; a setting unit configured to set a set frequency of the extraction unit on the basis of a comparison result between output levels of the frequency signals of the different set frequencies extracted by the extraction unit; and a detection unit configured to detect a formant frequency band including a formant frequency in the sound wave signal on the basis of a comparison result group between the output levels of the frequency signals of the different set frequencies extracted by the extraction unit, a setting history of the set frequency of the extraction unit by the setting unit, and a frequency characteristic of the extraction unit.

Sound wave signal processing apparatus and sound wave detection method

By using a boric acid-resistant anion exchange resin as the anion exchange resin used in a demineralizer that purifies the primary cooling water in a pressurized-water reactor power plant, even when a boric acid-containing primary cooling water is brought into contact with the anion exchange resin disposed in the demineralizer, the generation of breaking or cracking in the anion exchange resin can be prevented.

Demineralizer of primary coolant system in pressurized-water reactor power plant and method for purifying primary cooling water in pressurized-water reactor power plant

A filtration and demineralization apparatusincluding a vesselin a form of a body of revolution; a hollow columnar bodythat is located in an internal space of the vessel, one endof the columnar body being connected to an inner surface of the vesselalong an entire circumference of the end, and the other endof the columnar body forming an opening; and a partition platethat is connected to the other endof the hollow columnar body along an entire circumference of the other end, the partition plate being configured to separate an inside space or an outside space of the hollow columnar bodyas an independent space in the vessel. The partition platehas a circulation portthat allows water that is to be treated to pass therethrough. The independent space in the vessel that is separated by the partition plate functions as a filtration chamberin which filter elements are loaded, and the inside space or the outside space of the hollow columnar body that is not separated as the independent space by the partition plate functions as a demineralization chamber, the water that was treated in the filtration chamber being adapted to enter the demineralization chamber through the circulation port

Composite filtration and demineralization apparatus

A condensate filtering device of the present invention comprises a simulation unit which is able to simulate operating conditions being the same as operating conditions of a main body of an actual condensate filtering device and sample a hollow fiber membrane easily. The condensate filtering device comprises a unit evaluating properties of a hollow fiber membrane provided with a main body of the condensate filtering device containing a first hollow fiber membrane module in which filtration of condensate and air scrubbing washing are repeated, and equipped with a column containing a second hollow fiber membrane module having a hollow fiber membrane which is the same kind as the hollow fiber membrane of the first hollow fiber membrane module; and a line introducing the condensate for unit which is a branched line from a line introducing the condensate directing to the main body of the condensate filtering device and introduces the condensate into the unit evaluating the properties of the hollow fiber membrane.

Growing community of inventors

Tokyo, Japan

Satoshi Kasahara