Patents by Inventor Tomonao Takamatsu
Tomonao Takamatsu 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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Patent number: 7980295Abstract: An evaporator includes a hermetically sealed vessel 1A having an inlet 17 and an outlet 16, a refrigerant supply portion 14, in which liquid refrigerant is stored, a heat transfer portion 12, to which the liquid refrigerant stored in the refrigerant supply portion 14 is supplied, heat transfer fins 12A having a heat transfer surface provided in the heat transfer portion 12, a wick 13A provided on the heat transfer surface of the heat transfer fins 12A to transfer the liquid refrigerant supplied to the heat transfer portion 12 towards the outlet 16 by means of capillarity, and a heat radiation fins 15, which is provided on the outer surface of the refrigerant supply portion 14 to prevent the temperature of the refrigerant introduced into the refrigerant supply portion from rising.Type: GrantFiled: May 5, 2008Date of Patent: July 19, 2011Assignee: Kabushiki Kaisha ToshibaInventors: Tomonao Takamatsu, Katsumi Hisano, Hideo Iwasaki
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Patent number: 7916482Abstract: According to one embodiment, a loop heat pipe including a fluid circulating channel containing fluid, includes: an evaporating portion configured to vaporize the fluid by heat from a heat generating component; a condensing portion configured to liquefy the vaporized fluid; a first fluid channel connecting the evaporating portion and the condensing portion, the vaporized fluid flowing through the first fluid channel; a second fluid channel connecting the evaporating portion and the condensing portion, the fluid liquefied by the condensing portion flowing through the second fluid channel; a liquid accumulating portion formed on an inner wall of the second fluid channel, and provided between the evaporating portion and the condensing portion, the liquid accumulating portion being configured to accumulate the liquid liquefied by the condensing portion; and a wick provided between the evaporating portion and a position where the liquid accumulating portion is formed.Type: GrantFiled: June 30, 2009Date of Patent: March 29, 2011Assignee: Kabushiki Kaisha ToshibaInventors: Kentaro Tomioka, Tomonao Takamatsu
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Patent number: 7889837Abstract: A rotor is rotatably supported in a gantry housing having a substantially sealed structure. An X-ray tube is provided in the rotor. A cooler is provided in the rotor and cools a refrigerant within the X-ray tube. An X-ray detector is provided in the rotor. A reconstruction unit reconstructs an image on the basis of an output of the X-ray detector. A radiator is fixed inside the gantry housing at a position opposite to an exhaust opening of the cooler when the rotor is stationary.Type: GrantFiled: April 30, 2009Date of Patent: February 15, 2011Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems CorporationInventors: Tomonao Takamatsu, Hitoshi Hattori, Hideo Iwasaki, Harunobu Fukushima, Rika Hosaka, Tomohiko Jimbo, Tetsuya Sadotomo, Tomokazu Harada, Satoshi Ota, Makoto Nakano, Yasutaka Shindo, Katsumi Gotanda
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Patent number: 7852628Abstract: A cooling device including: a fan configured to rotate and produce airflow; a fan case accommodating the fan, the fan case having an outlet for discharging the airflow produced by the fan; a heat exchanger having an inlet disposed to oppose the outlet of the fan case, the inlet being configured to take in the airflow discharged from the outlet; a wire disposed between the heat exchanger and the fan case to stretch along an end face of the inlet of the heat exchanger, the wire having a first end being fixed to a fulcrum and a second end; and a wire driving mechanism configured to swing the wire about the fulcrum to scrape the end face of the inlet of the heat exchanger by the wire.Type: GrantFiled: March 12, 2009Date of Patent: December 14, 2010Assignee: Kabushiki Kaisha ToshibaInventors: Kenji Hirohata, Katsumi Hisano, Kenji Ooki, Hideo Kitamura, Tomonao Takamatsu, Takahiro Omori
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Patent number: 7806590Abstract: According to the invention, an X-ray CT apparatus includes: an annular rotator including: an X-ray tube; an X-ray detector disposed oppositely to the X-ray tube; a radiator disposed in the vicinity of the X-ray tube and dissipating heat from the X-ray tube; an air outlet provided in the vicinity of the radiator; and an air inlet provided at a position oppositely to the air outlet, a gantry cover covering peripheral of the annular rotator and having an upper air vent and a plurality of lower air vents; a plurality of fans discharging to the outside air exist in a gap between the gantry cover and the annular rotator from the air outlet; and a baffle plate provided in the gap in the vicinity of the lower air vents and controlling an air flow passing through internal space of the annular rotator and an airflow passing through the gap.Type: GrantFiled: March 12, 2009Date of Patent: October 5, 2010Assignee: Kabushiki Kaisha ToshibaInventors: Tomohiko Jimbo, Hideo Iwasaki, Tomonao Takamatsu
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Patent number: 7772692Abstract: A semiconductor device comprises: a semiconductor element; a mounting substrate with the semiconductor element mounted thereon; a first high thermal conductivity member formed on a surface of the mounting substrate; and a first cooling member thermally connected to at least a part of the first high thermal conductivity member. The first high thermal conductivity member is thermally connected to the semiconductor element, and the first high thermal conductivity member has an outer edge which is located outside an outer edge of the semiconductor element.Type: GrantFiled: August 27, 2007Date of Patent: August 10, 2010Assignee: Kabushiki Kaisha ToshibaInventors: Tomonao Takamatsu, Hideo Aoki, Kazunari Ishimaru
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Publication number: 20100177863Abstract: According to an aspect of the present invention, there is provided an X-ray CT scanner including: a gantry; a revolving body provided inside the gantry; an X-ray tube assembly provided in the revolving body; a heat radiator provided inside the revolving body so as to be connected to the X-ray tube assembly; a heat storage material provided in the heat radiator and capable of accumulating a heat generated by the X-ray tube assembly; and an X-ray detector provided inside the revolving body so as to oppose the X-ray tube assembly.Type: ApplicationFiled: January 14, 2010Publication date: July 15, 2010Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Tomohiko Jimbo, Tomonao Takamatsu, Hideo Kitamura, Rika Hosaka, Hitoshi Hattori, Harunobu Fukushima, Hideo Iwasaki
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Publication number: 20100149755Abstract: According to one embodiment, a loop heat pipe including a fluid circulating channel containing fluid, includes: an evaporating portion configured to vaporize the fluid by heat from a heat generating component; a condensing portion configured to liquefy the vaporized fluid; a first fluid channel connecting the evaporating portion and the condensing portion, the vaporized fluid flowing through the first fluid channel; a second fluid channel connecting the evaporating portion and the condensing portion, the fluid liquefied by the condensing portion flowing through the second fluid channel; a liquid accumulating portion formed on an inner wall of the second fluid channel, and provided between the evaporating portion and the condensing portion, the liquid accumulating portion being configured to accumulate the liquid liquefied by the condensing portion; and a wick provided between the evaporating portion and a position where the liquid accumulating portion is formed.Type: ApplicationFiled: June 30, 2009Publication date: June 17, 2010Applicant: Kabushiki Kaisha ToshibaInventors: Kentaro Tomioka, Tomonao Takamatsu
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Publication number: 20090299531Abstract: An electronic device includes a deviation value calculation unit which calculates a deviation value from the normal boundary of the relationship between a power index associated with the driving power and the measured rotational speed of the fan, a clogging detection unit which detects, based on the deviation value, clogging in an air duct through which the fan takes in air outside the case and sends it to the radiator, and a deviation value correction unit which corrects the deviation value in accordance with aging of performance of the fan to compensate for deterioration of the clogging detection capability of the clogging detection unit caused by the aging.Type: ApplicationFiled: May 27, 2009Publication date: December 3, 2009Inventors: Hideo KITAMURA, Kenji HIROHATA, Katsumi HISANO, Tomonao TAKAMATSU
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Publication number: 20090279660Abstract: A rotor is rotatably supported in a gantry housing having a substantially sealed structure. An X-ray tube is provided in the rotor. A cooler is provided in the rotor and cools a refrigerant within the X-ray tube. An X-ray detector is provided in the rotor. A reconstruction unit reconstructs an image on the basis of an output of the X-ray detector. A radiator is fixed inside the gantry housing at a position opposite to an exhaust opening of the cooler when the rotor is stationary.Type: ApplicationFiled: April 30, 2009Publication date: November 12, 2009Inventors: Tomonao Takamatsu, Hitoshi Hattori, Hideo Iwasaki, Harunobu Fukushima, Rika Hosaka, Tomohiko Jimbo, Tetsuya Sadotomo, Tomokazu Harada, Satoshi Ota, Makoto Nakano, Yasutaka Shindo, Katsumi Gotanda
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Publication number: 20090244843Abstract: A cooling device including: a fan configured to rotate and produce airflow; a fan case accommodating the fan, the fan case having an outlet for discharging the airflow produced by the fan; a heat exchanger having an inlet disposed to oppose the outlet of the fan case, the inlet being configured to take in the airflow discharged from the outlet; a wire disposed between the heat exchanger and the fan case to stretch along an end face of the inlet of the heat exchanger, the wire having a first end being fixed to a fulcrum and a second end; and a wire driving mechanism configured to swing the wire about the fulcrum to scrape the end face of the inlet of the heat exchanger by the wire.Type: ApplicationFiled: March 12, 2009Publication date: October 1, 2009Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Kenji Hirohata, Katsumi Hisano, Kenji Ooki, Hideo Kitamura, Tomonao Takamatsu, Takahiro Omori
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Publication number: 20090232281Abstract: According to the invention, an X-ray CT apparatus includes: an annular rotator including: an X-ray tube; an X-ray detector disposed oppositely to the X-ray tube; a radiator disposed in the vicinity of the X-ray tube and dissipating heat from the X-ray tube; an air outlet provided in the vicinity of the radiator; and an air inlet provided at a position oppositely to the air outlet, a gantry cover covering peripheral of the annular rotator and having an upper air vent and a plurality of lower air vents; a plurality of fans discharging to the outside air exist in a gap between the gantry cover and the annular rotator from the air outlet; and a baffle plate provided in the gap in the vicinity of the lower air vents and controlling an air flow passing through internal space of the annular rotator and an airflow passing through the gap.Type: ApplicationFiled: March 12, 2009Publication date: September 17, 2009Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Tomohiko Jimbo, Hideo Iwasaki, Tomonao Takamatsu
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Publication number: 20080277099Abstract: An evaporator includes a hermetically sealed vessel 1A having an inlet 17 and an outlet 16, a refrigerant supply portion 14, in which liquid refrigerant is stored, a heat transfer portion 12, to which the liquid refrigerant stored in the refrigerant supply portion 14 is supplied, heat transfer fins 12A having a heat transfer surface provided in the heat transfer portion 12, a wick 13A provided on the heat transfer surface of the heat transfer fins 12A to transfer the liquid refrigerant supplied to the heat transfer portion 12 towards the outlet 16 by means of capillarity, and a heat radiation fins 15, which is provided on the outer surface of the refrigerant supply portion 14 to prevent the temperature of the refrigerant introduced into the refrigerant supply portion from rising.Type: ApplicationFiled: May 5, 2008Publication date: November 13, 2008Inventors: Tomonao TAKAMATSU, Katsumi HISANO, Hideo IWASAKI
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Publication number: 20080179046Abstract: In a cooling apparatus, a heating element is thermally connected to a container that defines a first channel through which a coolant flows. A porous block having a large number of pores is accommodated in the container so as to block the first channel. The porous block has second channels formed in the porous block along the first channel and each having an opening on an upstream side of the first channel. Further, third channels are formed in the porous block along the first channel, each have an opening on an upstream side of the first channel, and communicate with the second channels via the pores.Type: ApplicationFiled: September 20, 2007Publication date: July 31, 2008Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Katsumi Hisano, Hideo Iwasaki, Tomonao Takamatsu
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Patent number: 7371056Abstract: A fluid pump includes a case including a pump chamber, a reserve tank for storing spare liquid and located in the case but outside the pump chamber and formed so that a space independent of the pump chamber is defined by the reserve tank, a fluid path forming member arranged inside the reserve tank and including a discharge path communicating between a discharge port and the pump chamber, and a communication hole which is formed in a side of the fluid path forming member so as to assume such a position that the communication hole faces an inside of the reserve tank so that the hole communicates between the discharge path and the inside of the reserve tank, the communication hole being sized so that air in the pump chamber is allowed to flow through the hole into the reserve tank.Type: GrantFiled: March 30, 2005Date of Patent: May 13, 2008Assignee: Kabushiki Kaisha ToshibaInventors: Kenichi Ito, Katsuya Seko, Kentaro Tomioka, Tomonao Takamatsu, Fumihide Nagashima, Takahiro Kojima
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Publication number: 20080067673Abstract: A semiconductor device comprises: a semiconductor element; a mounting substrate with the semiconductor element mounted thereon; a first high thermal conductivity member formed on a surface of the mounting substrate; and a first cooling member thermally connected to at least a part of the first high thermal conductivity member. The first high thermal conductivity member is thermally connected to the semiconductor element, and the first high thermal conductivity member has an outer edge which is located outside an outer edge of the semiconductor element.Type: ApplicationFiled: August 27, 2007Publication date: March 20, 2008Inventors: Tomonao Takamatsu, Hideo Aoki, Kazunari Ishimaru
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Publication number: 20070139815Abstract: A carriage arm has a movement locus and supports a head that performs either one of recording information to a disk and reproducing information recorded on the disk. A carriage driving mechanism moves the carriage arm in a radial direction of the disk to perform a positioning of the carriage arm. A guide member changes a direction of air flowing on at least one of a peripheral portion of the disk and a neighboring portion of the peripheral portion toward a center portion of the disk. The guide member is provided in a position where the movement locus of the carriage arm is not blocked in an area of either one of the peripheral portion and the neighboring portion.Type: ApplicationFiled: December 11, 2006Publication date: June 21, 2007Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Tomonao Takamatsu, Biswas Debasish, Katsumi Hisano, Hideo Iwasaki
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Patent number: 7113399Abstract: A cooling device is applied to cooling an electronic element producing concentrated heat in a case where the electronic element is housed in a portable electronic device such as a notebook PC. The cooling device is provided with an active heat transport element provided with a heat intake portion and a heat outlet portion, which conducts heat from the heat intake portion to the heat outlet portion, a first flow channel disposed upstream of the electronic element in flow of the cooling medium, a second flow channel disposed downstream of the electronic element in the flow of the cooling medium. The heat is by-passed by means of the active heat transport element so that the electronic element is exposed to flow of the cooled cooling medium and effectively cooled thereby.Type: GrantFiled: July 10, 2003Date of Patent: September 26, 2006Assignee: Kabushiki Kaisha ToshibaInventors: Katsumi Hisano, Tomonao Takamatsu, Hideo Iwasaki
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Publication number: 20060209456Abstract: In a disc drive apparatus, a magnetic disc is housed in a casing and rotated by a motor mechanism. A magnetic head for recording information in a disc surface region and for reproducing the recorded information is supported by a carriage arm such that the magnetic head is swingable. Formed on that side of the carriage arm which faces the magnetic disc is a guide portion for guiding the air stream generated on the disc surface such that the air stream is allowed to flow in the longitudinal direction of the carriage arm.Type: ApplicationFiled: September 27, 2005Publication date: September 21, 2006Inventors: Debashisu Bisuwasu, Tomonao Takamatsu, Katsumi Hisano, Hideo Iwasaki
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Patent number: 7104114Abstract: An electronic equipment is provided with a fluid device using fluid including an additive, a main body comprising an installation site for installation of the fluid device and a detection part reserving the fluid. The detection part makes the fluid visible by means of the additive or is provided with a detection substance changing its nature when contacting the fluid, thereby leakage of the fluid is detected. The detection part may be further provided with electrodes to measure an electric property change therebetween. The detection part is disposed on either the installation site or the fluid device.Type: GrantFiled: February 12, 2004Date of Patent: September 12, 2006Assignee: Kabushiki Kaisha ToshibaInventors: Katsumi Hisano, Eiichi Sakaue, Nobutaka Kikuiri, Tomonao Takamatsu, Hideo Iwasaki