Patents by Inventor Takahiro Soma
Takahiro Soma 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: 20140014853Abstract: An ultraviolet irradiation device includes a treatment vessel, an ultraviolet irradiation member, and a support member. The treatment vessel has a water inlet and a water outlet and through which water to be treated as a treatment target flows in a first direction from the water inlet toward the water outlet, the treatment vessel receiving the water to be treated through the water inlet and discharging the water to be treated through the water outlet. The ultraviolet irradiation member is provided inside the treatment vessel along a second direction crossing the first direction and which irradiates the water to be treated flowing through the treatment vessel with an ultraviolet ray. The support member is provided inside the treatment vessel along the second direction with both end portions of the support member being firmly fixed to wall surfaces of the treatment vessel.Type: ApplicationFiled: September 18, 2013Publication date: January 16, 2014Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Shinji Kobayashi, Norimitsu Abe, Akihiko Shirota, Kenji Takeuchi, Takahiro Soma
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Patent number: 8552395Abstract: According to one embodiment, an ultraviolet irradiation system that sterilizes, disinfects, and inactivates raw water such as city water or underground water, includes a plurality of ultraviolet irradiation devices connected in series, and a controller configured to control output and non-output of the ultraviolet irradiation devices. The ultraviolet irradiation device includes a water processing vessel through which the raw water flows, an ultraviolet lamp configured to irradiate the raw water in the water processing vessel with ultraviolet rays, and an ultraviolet sensor configured to measure an amount of ultraviolet rays emitted from the ultraviolet lamp.Type: GrantFiled: December 15, 2010Date of Patent: October 8, 2013Assignee: Kabushiki Kaisha ToshibaInventors: Shinji Kobayashi, Norimitsu Abe, Takahiro Soma, Akihiko Shirota
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Patent number: 8507875Abstract: A ultraviolet irradiation apparatus includes: an ultraviolet-irradiation water tank; a protection pipe provided in the ultraviolet-irradiation water tank; an ultraviolet lamp provided in the protection pipe to be lit up with high-frequency discharge at a frequency of 10 kHz to 10 MHz, inclusive; protection covers respectively provided on the two ends of the ultraviolet-irradiation water tank; an electronic ballast provided in one of the protection covers; and a feeder wire electrically connecting the ultraviolet lamp to the electronic ballast. Each of the ultraviolet-irradiation water tank and the protection covers is made of a conductive material with a specific conductivity and a relative magnetic permittivity whose product is equal to or larger than 1, and has a thickness at least three times as large as a skin depth at a frequency of a high-frequency current that flows through the ultraviolet lamp.Type: GrantFiled: March 15, 2012Date of Patent: August 13, 2013Assignee: Kabushiki Kaisha ToshibaInventors: Shinji Kobayashi, Norimitsu Abe, Akihiko Shirota, Naoto Yoshizawa, Takahiro Soma
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Patent number: 8487267Abstract: An ultraviolet irradiation system includes: an ultraviolet irradiation apparatus including a plurality of ultraviolet lamps; a flowmeter configured to measure a flow rate of the water to be treated that passes through the ultraviolet irradiation apparatus; and an ultraviolet-dose monitoring and controlling apparatus configured to monitor an ultraviolet dose of the ultraviolet irradiation apparatus and to control outputs of the ultraviolet lamps. The plurality of ultraviolet lamps include a first ultraviolet lamp and a plurality of second ultraviolet lamps. The ultraviolet irradiation apparatus includes: a first measurement head configured to measure an ultraviolet intensity of the first ultraviolet lamp; and a plurality of second measurement heads configured to respectively measure ultraviolet intensities of the plurality of the ultraviolet lamps. A distance between the first ultraviolet lamp and the first measurement head is set to a determined value.Type: GrantFiled: March 16, 2012Date of Patent: July 16, 2013Assignee: Kabushiki Kaisha ToshibaInventors: Norimitsu Abe, Shinji Kobayashi, Takeshi Ide, Naoto Yoshizawa, Akihiko Shirota, Takahiro Soma
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Publication number: 20130068964Abstract: An ultraviolet irradiation device includes a treatment vessel, an ultraviolet irradiation member, and a support member. The treatment vessel has a water inlet and a water outlet and through which water to be treated as a treatment target flows in a first direction from the water inlet toward the water outlet, the treatment vessel receiving the water to be treated through the water inlet and discharging the water to be treated through the water outlet. The ultraviolet irradiation member is provided inside the treatment vessel along a second direction crossing the first direction and which irradiates the water to be treated flowing through the treatment vessel with an ultraviolet ray. The support member is provided inside the treatment vessel along the second direction with both end portions of the support member being firmly fixed to wall surfaces of the treatment vessel.Type: ApplicationFiled: July 30, 2012Publication date: March 21, 2013Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Shinji Kobayashi, Norimitsu Abe, Akihiko Shirota, Kenji Takeuchi, Takahiro Soma
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Publication number: 20120235059Abstract: A ultraviolet irradiation apparatus includes: an ultraviolet-irradiation water tank; a protection pipe provided in the ultraviolet-irradiation water tank; an ultraviolet lamp provided in the protection pipe to be lit up with high-frequency discharge at a frequency of 10 kHz to 10 MHz, inclusive; protection covers respectively provided on the two ends of the ultraviolet-irradiation water tank; an electronic ballast provided in one of the protection covers; and a feeder wire electrically connecting the ultraviolet lamp to the electronic ballast. Each of the ultraviolet-irradiation water tank and the protection covers is made of a conductive material with a specific conductivity and a relative magnetic permittivity whose product is equal to or larger than 1, and has a thickness at least three times as large as a skin depth at a frequency of a high-frequency current that flows through the ultraviolet lamp.Type: ApplicationFiled: March 15, 2012Publication date: September 20, 2012Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Shinji KOBAYASHI, Norimitsu ABE, Akihiko SHIROTA, Naoto YOSHIZAWA, Takahiro SOMA
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Publication number: 20120235050Abstract: An ultraviolet irradiation system includes: an ultraviolet irradiation apparatus including a plurality of ultraviolet lamps; a flowmeter configured to measure a flow rate of the water to be treated that passes through the ultraviolet irradiation apparatus; and an ultraviolet-dose monitoring and controlling apparatus configured to monitor an ultraviolet dose of the ultraviolet irradiation apparatus and to control outputs of the ultraviolet lamps. The plurality of ultraviolet lamps include a first ultraviolet lamp and a plurality of second ultraviolet lamps. The ultraviolet irradiation apparatus includes: a first measurement head configured to measure an ultraviolet intensity of the first ultraviolet lamp; and a plurality of second measurement heads configured to respectively measure ultraviolet intensities of the plurality of the ultraviolet lamps. A distance between the first ultraviolet lamp and the first measurement head is set to a determined value.Type: ApplicationFiled: March 16, 2012Publication date: September 20, 2012Applicant: Kabushiki Kaisha ToshibaInventors: Norimitsu ABE, Shinji KOBAYASHI, Takeshi IDE, Naoto YOSHIZAWA, Akihiko SHIROTA, Takahiro SOMA
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Publication number: 20120061585Abstract: An ultraviolet water treating apparatus according to one embodiment has an ultraviolet irradiation unit, and water inlet and outlet pipes. The unit includes a hollow enclosure with first and second openings in its peripheral wall. Within the enclosure, one or more ultraviolet irradiation devices are provided, which irradiate ultraviolet light onto the water flowing through the enclosure. Also within the enclosure, a cleaning device is provided, which includes a cleaning tool to clean the surface of each protective sleeve, and a driving unit to move the cleaning tool along the protective sleeve. The inlet pipe is in fluid communication with the first opening and flows the water therethrough into the enclosure. The outlet pipe is in fluid communication with the second opening and flows the ultraviolet-irradiated water therethrough out of the enclosure. The inlet and outlet pipes have their central axes intersected with the central axis of the enclosure.Type: ApplicationFiled: September 13, 2011Publication date: March 15, 2012Inventors: Takeshi IDE, Norimitsu ABE, Seiichi MURAYAMA, Shinji KOBAYASHI, Kenji TAKEUCHI, Takahiro SOMA
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Publication number: 20110220813Abstract: According to one embodiment, an ultraviolet water treatment apparatus includes an ultraviolet lamp unit provided with a first plumbing flange coupling on each of both ends thereof, and further provided therein with an ultraviolet irradiation tube including an ultraviolet lamp and a lamp protective tube configured to protect the ultraviolet lamp, and a cleaning device drive unit provided with a second plumbing flange coupling on each of both ends thereof and configured to drive a cleaning device configured to clean a surface of the lamp protective tube. The ultraviolet lamp unit and the cleaning device drive unit are coupled with each other on the first and second plumbing flange couplings.Type: ApplicationFiled: February 4, 2011Publication date: September 15, 2011Inventors: Norimitsu ABE, Shinji Kobayashi, Seiichi Murayama, Takeshi Ide, Akihiko Shirota, Takahiro Soma
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Publication number: 20110150708Abstract: According to one embodiment, an ultraviolet irradiation device that sterilizes, disinfects, and inactivates raw water such as city water or underground water, includes a water processing vessel, an ultraviolet sensor, and a controller. The water processing vessel includes a water supply port into which the raw water flows, at least a pair of ultraviolet lamps configured to irradiate the raw water that flows into the water processing vessel with ultraviolet rays, and a water discharge port from which the raw water irradiated with the ultraviolet rays is discharged. The ultraviolet sensor is configured to measure an amount of ultraviolet rays irradiated from the ultraviolet lamps. The controller is configured to control turnon and turnoff of the ultraviolet lamps.Type: ApplicationFiled: December 15, 2010Publication date: June 23, 2011Inventors: Shinji KOBAYASHI, Norimitsu Abe, Takahiro Soma, Akihiko Shirota
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Publication number: 20110150707Abstract: According to one embodiment, an ultraviolet irradiation system that sterilizes, disinfects, and inactivates raw water such as city water or underground water, includes a plurality of ultraviolet irradiation devices connected in series, and a controller configured to control output and non-output of the ultraviolet irradiation devices. The ultraviolet irradiation device includes a water processing vessel through which the raw water flows, an ultraviolet lamp configured to irradiate the raw water in the water processing vessel with ultraviolet rays, and an ultraviolet sensor configured to measure an amount of ultraviolet rays emitted from the ultraviolet lamp.Type: ApplicationFiled: December 15, 2010Publication date: June 23, 2011Inventors: Shinji Kobayashi, Norimitsu Abe, Takahiro Soma, Akihiko Shirota
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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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Publication number: 20110024646Abstract: An ultraviolet irradiation water treatment apparatus includes a vessel having a cylindrical side portion, and plural rod-shaped ultraviolet lamps are disposed in parallel with a central axis of the side portion in the vessel. A water inlet pipe through which water flows into the vessel is provided in an outer wall of the side portion at a position in a tangential direction of an inner periphery of the side portion.Type: ApplicationFiled: October 8, 2010Publication date: February 3, 2011Inventors: Norimitsu Abe, Takeshi Ide, Takahiro Soma, Seiichi Murayama, Masao Kaneko, Shojiro Tamaki, Masumi Nakadate, Akira Morikawa
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Patent number: 7838845Abstract: An ultraviolet irradiation water treatment apparatus includes a vessel having a cylindrical side portion, and plural rod-shaped ultraviolet lamps are disposed in parallel with a central axis of the side portion in the vessel. A water inlet pipe through which water flows into the vessel is provided in an outer wall of the side portion at a position in a tangential direction of an inner periphery of the side portion.Type: GrantFiled: April 21, 2008Date of Patent: November 23, 2010Assignee: Kabushiki Kaisha ToshibaInventors: Norimitsu Abe, Takeshi Ide, Takahiro Soma, Seiichi Murayama, Masao Kaneko, Shojiro Tamaki, Masumi Nakadate, Akira Morikawa
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Publication number: 20080203004Abstract: An ultraviolet irradiation water treatment apparatus includes a vessel having a cylindrical side portion, and plural rod-shaped ultraviolet lamps are disposed in parallel with a central axis of the side portion in the vessel. A water inlet pipe through which water flows into the vessel is provided in an outer wall of the side portion at a position in a tangential direction of an inner periphery of the side portion.Type: ApplicationFiled: April 21, 2008Publication date: August 28, 2008Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Norimitsu Abe, Takeshi Ide, Takahiro Soma, Seiichi Murayama, Masao Kaneko, Shojiro Tamaki, Masumi Nakadate, Akira Morikawa
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Publication number: 20070102347Abstract: Provided is a membrane filtration system which makes it possible to improve operation rate of the system by increasing the amount of water to be treated, and to reduce costs required for chemical washing and replacement of a membrane. Accordingly, a total running cost is reduced. The membrane filtration system is provided with temperature-responsive membrane modules for filtering supplied raw water to discharge it as treated water. In each of the temperature-responsive membrane modules, temperature-responsive membranes are formed into any one of planar and cylindrical forms, and are then filled into a container.Type: ApplicationFiled: November 6, 2006Publication date: May 10, 2007Inventors: Takeshi Matsushiro, Manabu Sakurai, Shuji Seki, Hideki Nakamura, Kenichi Hinoshita, Takahiro Soma, Masahiko Tsutsumi
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Patent number: 4452273Abstract: A flexible tube connected to a drop chamber is closed off by a clamping force applied by a pinch clamp. A cam which presses against the pinch clamp to initiate the drop-wise flow of a fluid forms an electrical contact with an extension of the clamp. Prior to the start of drop-wise feed when the cam and clamp are not in contact, the cam is driven toward the clamp at high speed until contact is made, at which point the drop-wise feed begins. At the instant of contact, a control signal is produced in response to which a speed changeover circuit is actuated to drive the cam at low speed, whereby control is executed in such a manner that the fluid drop rate gradually approaches a set drop rate at the low speed.Type: GrantFiled: August 12, 1982Date of Patent: June 5, 1984Assignee: Terumo Kabushiki KaishaInventors: Yoshiki Hanzawa, Takahiro Soma