Patents by Inventor Takeshi Matsushiro
Takeshi Matsushiro has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20220298040Abstract: A water treatment system includes a flat plate rotating so as to be partially immersed in a raw water and an imaging device configured to image the flat plate to which microorganisms adhere. The water treatment system further includes a calculator configured to calculate an amount of the microorganisms adhering to the flat plate, a controller configured to control the water treatment system and a lighting device radiating light on the flat plate.Type: ApplicationFiled: February 24, 2022Publication date: September 22, 2022Inventors: Yasuhiro OHKAWA, Shuhei NODA, Naoto SETO, Takumi OBARA, Jinyang HU, Kenji KAKINUMA, Takeshi MATSUSHIRO, Shinobu MONIWA, Nobuhiro OOTSUKI
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Patent number: 9932250Abstract: According to one embodiment, a membrane filtration system includes a raw water tank, a pretreatment membrane module, a raw water feed line, a high-pressure RO membrane module, a high-pressure line, a preceding power recovery unit which pressurize the pretreated water by transmitting the pressure of the concentrate to the pretreated water, a succeeding power recovery unit which pressurize the raw water by transmitting a remaining pressure of the concentrate to the raw water, a concentrate discharge line, a first pressure transmission line communicating to the power recovery unit by being branched from the high-pressure line, a second pressure transmission line communicating to the power recovery unit by being branched from the raw water feed line, and a valve provided in the drain line to regulate a discharge of the concentrate from the power recovery unit in accordance with a pressure loss in the pretreatment membrane module.Type: GrantFiled: September 21, 2015Date of Patent: April 3, 2018Assignee: Kabushiki Kaisha ToshibaInventors: Takeshi Matsushiro, Katsuya Yokokawa, Futoshi Kurokawa, Ryo Namba, Koichi Matsui, Hideaki Yamagata, Yuka Hiraga, Seiichi Murayama, Hiroyuki Tokimoto
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Publication number: 20160009572Abstract: According to one embodiment, a membrane filtration system includes a raw water tank, a pretreatment membrane module, a raw water feed line, a high-pressure RO membrane module, a high-pressure line, a preceding power recovery unit which pressurize the pretreated water by transmitting the pressure of the concentrate to the pretreated water, a succeeding power recovery unit which pressurize the raw water by transmitting a remaining pressure of the concentrate to the raw water, a concentrate discharge line, a first pressure transmission line communicating to the power recovery unit by being branched from the high-pressure line, a second pressure transmission line communicating to the power recovery unit by being branched from the raw water feed line, and a valve provided in the drain line to regulate a discharge of the concentrate from the power recovery unit in accordance with a pressure loss in the pretreatment membrane module.Type: ApplicationFiled: September 21, 2015Publication date: January 14, 2016Inventors: Takeshi MATSUSHIRO, Katsuya YOKOKAWA, Futoshi KUROKAWA, Ryo NAMBA, Koichi MATSUI, Hideaki YAMAGATA, Yuka HIRAGA, Seiichi MURAYAMA, Hiroyuki TOKIMOTO
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Patent number: 9145310Abstract: According to one embodiment, a seawater desalination apparatus includes a pressure sensor configured to measure a pressure of seawater which is supplied to a reverse osmosis membrane that is configured to separate seawater into fresh water and condensed seawater and to discharge the fresh water and the condensed seawater, a sensor configured to measure a flow amount of the fresh water which is discharged from the reverse osmosis membrane, a sensor configured to measure a flow amount of the condensed seawater discharged from the reverse osmosis membrane or a flow amount of the seawater discharged from a booster pump, a sensor configured to measure a flow amount of the seawater which is supplied to a power recovery device, and a controller configured to execute control based on values measured by the sensors.Type: GrantFiled: May 10, 2011Date of Patent: September 29, 2015Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Ryo Namba, Katsuya Yokokawa, Hideaki Yamagata, Koichi Matsui, Futoshi Kurokawa, Takeshi Matsushiro
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Patent number: 9120688Abstract: According to one embodiment, a seawater desalination plant system includes a plant unit that produces fresh water from seawater. The seawater desalination plant system predicts quality of seawater for each predetermined time (for example, 1 hour) for a certain definite period (for example, 24 hours) based on a past actual measurement value of quality of seawater; creates a plurality of proposed plans of fresh water production quantity during the definite period in each of which fresh water production quantity required for the definite period is allotted to the each predetermined time; calculates, with respect to the proposed plans, electric power consumption rates for desalination using the predicted quality of seawater, the fresh water production quantity and a previously obtained recovery rate; and obtains an optimum plan of fresh water production quantity with a minimum electric power consumption rate from the proposed plans.Type: GrantFiled: September 7, 2012Date of Patent: September 1, 2015Assignee: Kabushiki Kaisha ToshibaInventors: Katsuya Yokokawa, Ryo Namba, Takeshi Matsushiro, Hideaki Yamagata, Futoshi Kurokawa
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Patent number: 8834712Abstract: According to one embodiment, a seawater desalination system includes a membrane filtering pump, a first to third flowmeter, a filtering membrane, a high-pressure pump, a pressure gauge, a reverse osmosis membrane, a discharge valve and a control module. The membrane filtering pump outputs seawater according to a first control signal. The first flowmeter measures flow rate Q1. The high-pressure pump outputs filtered water from the filtering membrane according to a second control signal. The first pressure gauge measures pressure P1. The reverse osmosis membrane desalinates the filtered water into fresh water. The second flowmeter measures flow rate Q2. The third flowmeter measures flow rate Q3. The discharge valve discharges a high-concentration salt water according to a third control signal. The control module performs first, second, and third flow rate control with reference to the flow rate Q1, Q2 and Q3 and the pressure P1.Type: GrantFiled: January 25, 2011Date of Patent: September 16, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Kyosuke Katayama, Takeshi Matsushiro, Futoshi Kurokawa, Takanori Fukagawa, Kazuhiko Kimijima, Koichi Matsui
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Patent number: 8702978Abstract: According to one embodiment, a apparatus includes a controller configured to obtain values measured by a first sensor and a second sensor, receive pH target values at the entrance of a first reverse osmosis membrane and at the entrance of a second reverse osmosis membrane, and use a transfer function from the acid injection to pH at the entrance of the first reverse osmosis membrane, a transfer function from the alkaline injection to pH at the entrance of the first reverse osmosis membrane, a transfer function from the acid injection to pH at the entrance of the second reverse osmosis membrane, and a transfer function from the alkaline injection to pH at the entrance of the second reverse osmosis membrane, to control an injection rate of the acid injected from a first injection device and an injection rate of the alkali injected from a second injection device.Type: GrantFiled: July 19, 2011Date of Patent: April 22, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Katsuya Yokokawa, Takeshi Matsushiro, Ryo Namba, Hideaki Yamagata, Koichi Matsui, Futoshi Kurokawa
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Publication number: 20130066475Abstract: In a seawater desalination plant system, a seawater quality prediction means predicts quality of seawater for each predetermined time during a certain definite period based on a past actual measurement value of quality of seawater. In addition, an optimum plan calculation means creates a plurality of proposed plans of fresh water production quantity during the definite period in which fresh water production quantity required for the definite period is allotted to the each predetermined time, calculates, with respect to these, an electric power consumption rate for desalination using the seawater quality predicted for the each predetermined time, the fresh water production quantity, and a previously obtained recovery rate, and obtains an optimum fresh water production quantity plan from the plurality of proposed plans of fresh water production quantity based on this. A display means displays the content of this obtained optimum fresh water production quantity plan.Type: ApplicationFiled: September 7, 2012Publication date: March 14, 2013Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Katsuya Yokokawa, Ryo Namba, Takeshi Matsushiro, Hideaki Yamagata, Futoshi Kurokawa
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Patent number: 8211297Abstract: An activated carbon adder adds activated carbon to raw water before flocculating sedimentation, to adsorb suspended matter contained in raw water, a liquid cyclone is adapted to separate activated carbon with suspended matter adsorbed thereon, from raw water containing activated carbon, an inflow line is connected with the liquid cyclone so as to cause raw water containing activated carbon before flocculating sedimentation to flow into the liquid cyclone and swirl therein, an activated carbon discharge line discharges activated carbon spun down out of raw water containing activated carbon in the liquid cyclone, from the liquid cyclone, and a pretreated water discharge line discharges raw water having got rid of activated carbon as pretreated water from the liquid cyclone, allowing for a reduced amount of chemicals to be used, with production of a reduced amount of sludge.Type: GrantFiled: August 17, 2009Date of Patent: July 3, 2012Assignee: Kabushiki Kaisha ToshibaInventors: Mii Fukuda, Takashi Menju, Yasushi Yamamoto, Kazuyoshi Aoki, Takeshi Matsushiro, Ryoichi Arimura, Norimitsu Abe, Futoshi Kurokawa, Atsushi Yukawa, Tokusuke Hayami
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Publication number: 20120067791Abstract: According to one embodiment, a apparatus includes a controller configured to obtain values measured by a first sensor and a second sensor, receive pH target values at the entrance of a first reverse osmosis membrane and at the entrance of a second reverse osmosis membrane, and use a transfer function from the acid injection to pH at the entrance of the first reverse osmosis membrane, a transfer function from the alkaline injection to pH at the entrance of the first reverse osmosis membrane, a transfer function from the acid injection to pH at the entrance of the second reverse osmosis membrane, and a transfer function from the alkaline injection to pH at the entrance of the second reverse osmosis membrane, to control an injection rate of the acid injected from a first injection device and an injection rate of the alkali injected from a second injection device.Type: ApplicationFiled: July 19, 2011Publication date: March 22, 2012Inventors: Katsuya YOKOKAWA, Takeshi Matsushiro, Ryo Namba, Hideaki Yamagata, Koichi Matsui, Futoshi Kurokawa
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Publication number: 20120061300Abstract: According to one embodiment, a membrane filtration system includes a raw water tank, a pretreatment membrane module, a raw water feed line, a high-pressure RO membrane module, a high-pressure line, a preceding power recovery unit which pressurize the pretreated water by transmitting the pressure of the concentrate to the pretreated water, a succeeding power recovery unit which pressurize the raw water by transmitting a remaining pressure of the concentrate to the raw water, a concentrate discharge line, a first pressure transmission line communicating to the power recovery unit by being branched from the high-pressure line, a second pressure transmission line communicating to the power recovery unit by being branched from the raw water feed line, and a valve provided in the drain line to regulate a discharge of the concentrate from the power recovery unit in accordance with a pressure loss in the pretreatment membrane module.Type: ApplicationFiled: July 19, 2011Publication date: March 15, 2012Inventors: Takeshi Matsushiro, Katsuya Yokokawa, Futoshi Kurokawa, Ryo Namba, Koichi Matsui, Hideaki Yamagata, Yuka Hiraga, Seiichi Murayama, Hiroyuki Tokimoto
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Publication number: 20110278208Abstract: According to one embodiment, a seawater desalination apparatus includes a pressure sensor configured to measure a pressure of seawater which is supplied to a reverse osmosis membrane that is configured to separate seawater into fresh water and condensed seawater and to discharge the fresh water and the condensed seawater, a sensor configured to measure a flow amount of the fresh water which is discharged from the reverse osmosis membrane, a sensor configured to measure a flow amount of the condensed seawater discharged from the reverse osmosis membrane or a flow amount of the seawater discharged from a booster pump, a sensor configured to measure a flow amount of the seawater which is supplied to a power recovery device, and a controller configured to execute control based on values measured by the sensors.Type: ApplicationFiled: May 10, 2011Publication date: November 17, 2011Inventors: Ryo NAMBA, Katsuya Yokokawa, Hideaki Yamagata, Koichi Matsui, Futoshi Kurokawa, Takeshi Matsushiro
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Publication number: 20110220561Abstract: According to one embodiment, a seawater desalination system includes a membrane filtering pump, a first to third flowmeter, a filtering membrane, a high-pressure pump, a pressure gauge, a reverse osmosis membrane, a discharge valve and a control module. The membrane filtering pump outputs seawater according to a first control signal. The first flowmeter measures flow rate Q1. The high-pressure pump outputs filtered water from the filtering membrane according to a second control signal. The first pressure gauge measures pressure P1. The reverse osmosis membrane desalinates the filtered water into fresh water. The second flowmeter measures flow rate Q2. The third flowmeter measures flow rate Q3. The discharge valve discharges a high-concentration salt water according to a third control signal. The control module performs first, second, and third flow rate control with reference to the flow rate Q1, Q2 and Q3 and the pressure P1.Type: ApplicationFiled: January 25, 2011Publication date: September 15, 2011Inventors: Kyosuke Katayama, Takeshi Matsushiro, Futoshi Kurokawa, Takanori Fukagawa, Kazuhiko Kimijima, Koichi Matsui
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Publication number: 20110056876Abstract: Certain embodiments provide a desalination system including a desalination plant, a carbon dioxide contacting plant, a carbonate filtering plant, and an electrolysis plant. The desalination plant works to separate raw water into fresh water and high salinity condensed water. The carbon dioxide contacting plant works to bring carbon dioxide into contact with condensed water obtained at the desalination plant, producing carbonates. The carbonate filtering plant works to filter carbonate containing condensed water produced at the carbon dioxide contacting plant, effecting a carbonate removal from condensed water. The electrolysis plant works for an electrolytic treatment of condensed water after the carbonate removal at the carbonate filtering plant to produce a chemical or chemicals for use in the desalination system.Type: ApplicationFiled: September 3, 2010Publication date: March 10, 2011Inventors: Takeshi IDE, Takeshi Matsushiro, Yoshiyuki Sakamoto, Norimitsu Abe, Futoshi Kurokawa
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Publication number: 20110056878Abstract: According to one embodiment, a membrane filtration system includes a raw water tank, a first tank, a second tank, a nanofiltration membrane module comprises a nanofiltration membrane, and removes the solute from the raw water with a solute removal rate of 1% to 30%, a first pump for supplying the raw water from the raw water tank to the module to cause the raw water to permeate through the membrane and send the water that has permeated through the membrane as a primary water to the first tank, a RO module comprises a RO membrane that further removes the solute from the primary water, and a second pump for supplying the primary water from the first tank to the RO module to cause the primary water to permeate through the membrane and send the water that has permeated through the membrane as a secondary water to the second tank.Type: ApplicationFiled: August 12, 2010Publication date: March 10, 2011Inventors: Takeshi Matsushiro, Nobuyuki Ashikaga, Takashi Menju, Futoshi Kurokawa, Yoshie Akai, Koichi Matsui, Hideaki Yamagata, Hideyuki Tsuji, Takanori Fukagawa, Takahiro Soma
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Patent number: 7820038Abstract: A water treatment system that performs a water purifying treatment by use of ultraviolet radiation, comprises a front stage ultraviolet radiation device for radiating ultraviolet light in a front stage process in a water purifying treatment process, a rear stage ultraviolet radiation device for radiating ultraviolet light in a rear stage process, and a controller for controlling these ultraviolet radiation devices.Type: GrantFiled: March 14, 2006Date of Patent: October 26, 2010Assignee: Kabushiki Kaisha ToshibaInventors: Norimitsu Abe, Takeshi Ide, Takeshi Matsushiro, Hiroyuki Suzuki, Seiichi Murayama
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Patent number: 7740753Abstract: A water treatment system that performs a water purifying treatment by use of ultraviolet radiation, comprises a front stage ultraviolet radiation device for radiating ultraviolet light in a front stage process in a water purifying treatment process, a rear stage ultraviolet radiation device for radiating ultraviolet light in a rear stage process, and a controller for controlling these ultraviolet radiation devices.Type: GrantFiled: February 13, 2008Date of Patent: June 22, 2010Assignee: Kabushiki Kaisha ToshibaInventors: Norimitsu Abe, Takeshi Ide, Takeshi Matsushiro, Hiroyuki Suzuki, Seiichi Murayama
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Publication number: 20100044285Abstract: An activated carbon adder adds activated carbon to raw water before flocculating sedimentation, to adsorb suspended matter contained in raw water, a liquid cyclone is adapted to separate activated carbon with suspended matter adsorbed thereon, from raw water containing activated carbon, an inflow line is connected with the liquid cyclone so as to cause raw water containing activated carbon before flocculating sedimentation to flow into the liquid cyclone and swirl therein, an activated carbon discharge line discharges activated carbon spun down out of raw water containing activated carbon in the liquid cyclone, from the liquid cyclone, and a pretreated water discharge line discharges raw water having got rid of activated carbon as pretreated water from the liquid cyclone, allowing for a reduced amount of chemicals to be used, with production of a reduced amount of sludge.Type: ApplicationFiled: August 17, 2009Publication date: February 25, 2010Inventors: Mii FUKUDA, Takashi Menju, Yasushi Yamamoto, Kazuyoshi Aoki, Takeshi Matsushiro, Ryoichi Arimura, Norimitsu Abe, Futoshi Kurokawa, Atsushi Yukawa, Tokusuke Hayami
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Publication number: 20100044286Abstract: A water-purification pretreatment system removes raw water of suspended solids heavier in specific gravity than water before a water-purification treatment of raw water taken from a water source and the system includes a liquid cyclone configured for raw water to inflow thereto and to be swirled inside thereof to separate from raw water suspended solids heavier in specific gravity tan water, an inflow line connected with the liquid cyclone for raw water to be supplied to the liquid cyclone and configured for raw water being supplied to swirl inside the liquid cyclone, and an outflow line configured for raw water having suspended solids separated therefrom to outflow as pretreated water from the liquid cyclone, allowing for a reduced load on a treatment of solid suspended solids as a water treatment for water purification plants.Type: ApplicationFiled: August 13, 2009Publication date: February 25, 2010Inventors: Takashi Menju, Mii Fukuda, Yasushi Yamamoto, Kazuyoshi Aoki, Takeshi Matsushiro, Futoshi Kurokawa, Atsushi Yukawa, Tokusuke Hayami
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Publication number: 20080210608Abstract: A water treatment system that performs a water purifying treatment by use of ultraviolet radiation, comprises a front stage ultraviolet radiation device for radiating ultraviolet light in a front stage process in a water purifying treatment process, a rear stage ultraviolet radiation device for radiating ultraviolet light in a rear stage process, and a controller for controlling these ultraviolet radiation devices.Type: ApplicationFiled: February 13, 2008Publication date: September 4, 2008Applicant: Kabushiki Kaisha ToshibaInventors: Norimitsu Abe, Takeshi Ide, Takeshi Matsushiro, Hiroyuki Suzuki, Seiichi Murayama