Torichigai
Masaaki Torichigai, Tokyo JP
Patent application number | Description | Published |
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20120109540 | IMMERSION-TYPE ULTRASOUND FLAW DETECTION DEVICE AND ULTRASOUND FLAW DETECTION SYSTEM - It is intended to provide an ultrasound flaw detection device of an immersion-type that is inserted into a tube and is capable of moving smoothly within the tube just with water pressure, as well as an ultrasound flaw detection system. The ultrasound flaw detection device which detects abnormalities within the tube while moving in the tube by pressure of water flow, includes: an ultrasound flaw detector which is divided into a plurality of parts and includes an ultrasound probe | 05-03-2012 |
Tetsuya Torichigai, Aichi JP
Patent application number | Description | Published |
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20100200481 | Membrane Filter Unit - A membrane filter unit that ensures the durability of hollow fiber membrane module through prevention of, in activated sludge treatment, bundling of porous hollow fiber membranes of the hollow fiber membrane module by hair, fiber, paper piece, etc. contained in wastewater or entwining or getting stuck thereof between hollow fiber membranes and surrounding frame member, etc. The membrane filter unit ( | 08-12-2010 |
Tetsuya Torichigai, Toyohashi-Shi JP
Patent application number | Description | Published |
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20100186777 | METHOD OF CLEANING AIR DIFFUSER APPARATUS - A method of cleaning an air diffuser apparatus component in a membrane filtration unit in which the air diffuser apparatus includes an air main pipe connected to at least one aeration blower, liquid supply piping that joins in midstream of the air main pipe, a branch conduit horizontally connected through a gas supply pipe branched from the air main pipe, and a plurality of air diffusion pipes horizontally disposed perpendicular to the branch pipe conduit, each of the plurality of diffusion pipes having a plurality of diffusion holes that open substantially vertically downward, involves setting a gas flow rate in the branch pipe conduit in a range of 1 m/sec or more and 8 m/sec or less, and a liquid supply rate in the branch pipe conduit in a range of 0.03 L/min/mm | 07-29-2010 |
20130327697 | HOLLOW FIBER MEMBRANE MODULE - A hollow fiber membrane module in which a housing body forming the hollow fiber membrane module includes an insertion opening into which end parts of the plurality of hollow fiber membranes are inserted so as to be fixed and held, and an opening portion which exposes open end surfaces of a plurality of hollow fiber membranes inserted from the insertion opening to outside, and a cover that blocks the opening portion of the housing body. According to the present invention, it is possible to provide a housing enabling open end surfaces of hollow fiber membranes to be sealed by easily exposing the open end surfaces of the hollow fiber membranes when the hollow fiber membranes are damaged. | 12-12-2013 |