Patents by Inventor Tsuyoshi Sasagawa

Tsuyoshi Sasagawa 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).

  • Patent number: 10182773
    Abstract: A radiation fluoroscopy apparatus provides radiation fluoroscopy from at least three positions without moving the radiation irradiation element and the radiation detector. A control element includes a detection rate calculation element that respectively calculates the detection rate of the position of the marker in a first imaging system having a first X-ray tube and a first flat panel detector, a second imaging system having a second X-ray tube and a second flat panel detector, and a third imaging system having a third X-ray tube and a third flat panel detector, and a fourth imaging system having a fourth X-ray tube and a fourth flat panel detector; and an imaging system selection element that selects the two imaging systems, used for X-ray fluoroscopy, out of one of the imaging systems based on a detection rate of a position of a marker calculated by a detection rate calculation element.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: January 22, 2019
    Assignee: SHIMADZU CORPORATION
    Inventors: Kodai Nagae, Tsuyoshi Sasagawa, Takayuki Sano
  • Publication number: 20180132803
    Abstract: A radiation fluoroscopy apparatus is provided, by which the radiation fluoroscopy can be performed from at least three positions without moving the radiation irradiation element and the radiation detector.
    Type: Application
    Filed: November 15, 2016
    Publication date: May 17, 2018
    Applicant: SHIMADZU CORPORATION
    Inventors: Kodai Nagae, Tsuyoshi Sasagawa, Takayuki Sano
  • Patent number: 9101761
    Abstract: In the case where X-ray tubes and X-ray detectors have fixed directions (directions of irradiation and directions of detecting planes), X-ray fluoroscopy can be carried out from various directions by providing two U-shaped tracks for the X-ray tubes and the X-ray detectors, each having two straight tracks arranged opposite each other, and a curved track connected thereto. An increased number of directions for X-ray fluoroscopy can be secured by arranging a U-shaped track rail for the X-ray tubes and a U-shaped track rail for the X-ray detectors opposite each other when seen in plane view.
    Type: Grant
    Filed: March 21, 2012
    Date of Patent: August 11, 2015
    Assignees: NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY, SHIMADZU CORPORATION
    Inventors: Masayori Ishikawa, Naoki Miyamoto, Tsuyoshi Sasagawa, Seiji Yamanaka, Junichi Yamazaki, Masayuki Yamaji, Hirokazu Yamawaki
  • Patent number: 8897006
    Abstract: First and second units are mounted on a rear side of a housing of a storage system. Either of the first and second units includes a fan. The rear side of the housing includes an upper-tier portion defining an upper-tier opening, and a lower-tier portion defining a lower-tier opening, and the housing further includes a boundary portion that is a boundary between the upper-tier portion and the lower-tier portion, and a shutter unit. The boundary portion includes a first through hole that is a through hole connecting an upper-tier passage and a lower-tier passage. When the fan is operating, if the first unit is removed from the upper-tier portion, the shutter unit blocks the upper-tier passage, and if the second unit is removed from the lower-tier portion, the shutter unit blocks the lower-tier passage.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: November 25, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Takuji Ito, Akihiro Inamura, Tsuyoshi Sasagawa
  • Patent number: 8681489
    Abstract: A storage unit is provided with a plurality of sub storage units configured to include a plurality of hard disk drives, an enclosure, a printed wiring board, a power supply device, and a cable holder. The sub storage units each operate separately. The enclosure is provided in the array of the hard disk drives so that the distance can be shorter between the enclosure and each of the hard disk drives. With the provision of the cable holder, communications cables can be both brought closer to the printed wiring board. With such a configuration, the coupling point among the communications cables and the printed wiring board, and the enclosure can be favorably reduced. The resulting storage control apparatus can be mounted with a larger number of storage devices, thereby being able to maintain good signal quality.
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: March 25, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Midori Kurokawa, Akihiro Inamura, Tsuyoshi Sasagawa, Takahiko Iwasaki, Toru Yoneyama, Minoru Shimokawa, Kiyoshi Honda
  • Publication number: 20140018604
    Abstract: In the case where X-ray tubes and X-ray detectors have fixed directions (directions of irradiation and directions of detecting planes), X-ray fluoroscopy can be carried out from various directions by providing two U-shaped tracks for the X-ray tubes and the X-ray detectors, each having two straight tracks arranged opposite each other, and a curved track connected thereto. An increased number of directions for X-ray fluoroscopy can be secured by arranging a U-shaped track rail for the X-ray tubes and a U-shaped track rail for the X-ray detectors opposite each other when seen in plane view.
    Type: Application
    Filed: March 21, 2012
    Publication date: January 16, 2014
    Applicants: NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY, SHIMADZU CORPORATION
    Inventors: Masayori Ishikawa, Naoki Miyamoto, Tsuyoshi Sasagawa, Seiji Yamanaka, Junichi Yamazaki, Masayuki Yamaji, Hirokazu Yamawaki
  • Publication number: 20130250507
    Abstract: First and second units are mounted on a rear side of a housing of a storage system. Either of the first and second units includes a fan. The rear side of the housing includes an upper-tier portion defining an upper-tier opening, and a lower-tier portion defining a lower-tier opening, and the housing further includes a boundary portion that is a boundary between the upper-tier portion and the lower-tier portion, and a shutter unit. The boundary portion includes a first through hole that is a through hole connecting an upper-tier passage and a lower-tier passage. When the fan is operating, if the first unit is removed from the upper-tier portion, the shutter unit blocks the upper-tier passage, and if the second unit is removed from the lower-tier portion, the shutter unit blocks the lower-tier passage.
    Type: Application
    Filed: March 23, 2012
    Publication date: September 26, 2013
    Inventors: Takuji Ito, Akihiro Inamura, Tsuyoshi Sasagawa
  • Publication number: 20120226875
    Abstract: A storage unit is provided with a plurality of sub storage units configured to include a plurality of hard disk drives, an enclosure, a printed wiring board, a power supply device, and a cable holder. The sub storage units each operate separately. The enclosure is provided in the array of the hard disk drives so that the distance can be shorter between the enclosure and each of the hard disk drives. With the provision of the cable holder, communications cables can be both brought closer to the printed wiring board. With such a configuration, the coupling point among the communications cables and the printed wiring board, and the enclosure can be favorably reduced. The resulting storage control apparatus can be mounted with a larger number of storage devices, thereby being able to maintain good signal quality.
    Type: Application
    Filed: May 17, 2012
    Publication date: September 6, 2012
    Inventors: Midori KUROKAWA, Akihiro Inamura, Tsuyoshi Sasagawa, Takahiko Iwasaki, Toru Yoneyama, Minoru Shimokawa, Kiyoshi Honda
  • Patent number: 8189329
    Abstract: A storage unit is provided with a plurality of sub storage units configured to include a plurality of hard disk drives, an enclosure, a printed wiring board, a power supply device, and a cable holder. The sub storage units each operate separately. The enclosure is provided in the array of hard disk drives so that the distance can be shorter between the enclosure and each of the hard disk drives. With the provision cable holder, communications cables can be both brought closer to the printed wiring board. With such a configuration, the coupling point among the communications cables and the printed wiring board, and the enclosure can be favorably reduced. The resulting storage control apparatus of the invention can be mounted with a larger number of storage devices, thereby being able to keep the signal quality.
    Type: Grant
    Filed: January 15, 2009
    Date of Patent: May 29, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Midori Kurokawa, Akihiro Inamura, Tsuyoshi Sasagawa, Takahiko Iwasaki, Toru Yoneyama, Minoru Shimokawa, Kiyoshi Honda
  • Patent number: 7911788
    Abstract: With the storage control device of the present invention, it is possible to mount a larger number of storage devices and to cool them effectively. A plurality of sub-storage units are provided within one storage unit. Each sub-storage unit includes a plurality of hard disk drives, a plurality of enclosures, and a plurality of power supply devices. A cover is divided into a front cover which covers over the front side of a case, and a rear cover which covers over the rear side of the case. Shield portions are provided on the upper sides of the hard disk drives and the enclosures. By these shield portions contacting the adjacent modules (other disk drives and other enclosures), it is possible to reduce the negative influence upon cooling air draft passages within the case, even when a cover has been removed.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: March 22, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Tsuyoshi Sasagawa, Akihiro Inamura, Rei Arikawa, Minoru Shimokawa, Kiyoshi Honda
  • Patent number: 7911789
    Abstract: In the disk array system, in the basic chassis, HDD modules are installed from a front surface in a front part of a backboard, and duplex CTL modules are installed up and down from a rear surface in a rear part, and duplex power source modules containing fans are installed in the left and right sides thereof. By the operation of the fans, in the rear part, the cooling air flows separately into each CTL module and into each power source module, and the cooling air having passed through the area of the duct by a block in the CTL module is drawn by the fans in the power source module through a ventilation hole and is then exhausted outside. The cooling air flow path to the plurality of ICs is divided by the block. The rotation speed of the fans is controlled by using a temperature sensor.
    Type: Grant
    Filed: August 13, 2009
    Date of Patent: March 22, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Tsuyoshi Sasagawa, Hirokazu Takahashi, Takahiko Iwasaki, Taro Takahashi, Chikazu Yokoi
  • Patent number: 7738254
    Abstract: The disk array system includes: controller modules, power source modules, and battery modules of a basic chassis; enclosure modules and power source modules of an expanded chassis; and operation levers which are commonly used for operations of insertion/removal and fixation of the modules. The operation lever includes a rotary shaft portion serving as a fulcrum point, a lever main body and a latch portion located on one side of the lever, and a hook portion located on the other side thereof. When a module is inserted and fixed, a user rotates the lever main body. By this means, the latch portion and the hook portion are fixed to a receiving portion and the module is connected and fixed to the backboard with a connector.
    Type: Grant
    Filed: January 23, 2008
    Date of Patent: June 15, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Yuri Oyama, Tsuyoshi Sasagawa, Chikazu Yokoi
  • Patent number: 7724529
    Abstract: The disk array system includes: controller modules, power source modules, and battery modules of a basic chassis; enclosure modules and power source modules of an expanded chassis; and operation levers which are commonly used for operations of insertion/removal and fixation of the modules. The operation lever includes a rotary shaft portion serving as a fulcrum point, a lever main body and a latch portion located on one side of the lever, and a hook portion located on the other side thereof. When a module is inserted and fixed, a user rotates the lever main body. By this means, the latch portion and the hook portion are fixed to a receiving portion and the module is connected and fixed to the backboard with a connector.
    Type: Grant
    Filed: February 8, 2008
    Date of Patent: May 25, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Yuri Oyama, Tsuyoshi Sasagawa, Yuki Sakuma, Chikazu Yokoi
  • Publication number: 20100118484
    Abstract: With the storage control device of the present invention, it is possible to mount a larger number of storage devices and to cool them effectively. A plurality of sub-storage units are provided within one storage unit. Each sub-storage unit includes a plurality of hard disk drives, a plurality of enclosures, and a plurality of power supply devices. A cover is divided into a front cover which covers over the front side of a case, and a rear cover which covers over the rear side of the case. Shield portions are provided on the upper sides of the hard disk drives and the enclosures. By these shield portions contacting the adjacent modules (other disk drives and other enclosures), it is possible to reduce the negative influence upon cooling air draft passages within the case, even when a cover has been removed.
    Type: Application
    Filed: January 21, 2009
    Publication date: May 13, 2010
    Inventors: Tsuyoshi Sasagawa, Akihiro Inamura, Rei Arikawa, Minoru Shimokawa, Kiyoshi Honda
  • Publication number: 20100118483
    Abstract: A storage unit 3 is provided therein with a plurality of sub storage units 4. The sub storage units 4 are each configured to include a plurality of hard disk drives 5, an enclosure 6, a printed wiring board 7, a power supply device 8, and a cable holder 9. The sub storage units 4 operate each separately. The enclosure 6 is provided in the array of the hard disk drives so that the distance can be shorter between the enclosure 6 and each of the hard disk drives 5. With the provision of the cable holder 9, communications cables 9A and 9B can be both brought closer to the printed wiring board 7. With such a configuration, the coupling point among the communications cables 9A and 9B and the printed wiring board 7, and the enclosure 6 can be favorably reduced. As such, the storage control apparatus of the invention can be mounted with a larger number of storage devices, thereby being able to keep the signal quality.
    Type: Application
    Filed: January 15, 2009
    Publication date: May 13, 2010
    Inventors: Midori Kurokawa, Akihiro Inamura, Tsuyoshi Sasagawa, Takahiko Iwasaki, Toru Yoneyama, Minoru Shimokawa, Kiyoshi Honda
  • Publication number: 20100002374
    Abstract: In the disk array system, in the basic chassis, HDD modules are installed from a front surface in a front part of a backboard, and duplex CTL modules are installed up and down from a rear surface in a rear part, and duplex power source modules containing fans are installed in the left and right sides thereof. By the operation of the fans, in the rear part, the cooling air flows separately into each CTL module and into each power source module, and the cooling air having passed through the area of the duct by a block in the CTL module is drawn by the fans in the power source module through a ventilation hole and is then exhausted outside. The cooling air flow path to the plurality of ICs is divided by the block. The rotation speed of the fans is controlled by using a temperature sensor.
    Type: Application
    Filed: August 13, 2009
    Publication date: January 7, 2010
    Inventors: Tsuyoshi Sasagawa, Hirokazu Takahashi, Takahiko Iwasaki, Taro Takahashi, Chikazu Yokoi
  • Patent number: 7593225
    Abstract: In the disk array system, in the basic chassis, HDD modules are installed from a front surface in a front part of a backboard, and duplex CTL modules are installed up and down from a rear surface in a rear part, and duplex power source modules containing fans are installed in the left and right sides thereof. By the operation of the fans, in the rear part, the cooling air flows separately into each CTL module and into each power source module, and the cooling air having passed through the area of the duct by a block in the CTL module is drawn by the fans in the power source module through a ventilation hole and is then exhausted outside. The cooling air flow path to the plurality of ICs is divided by the block. The rotation speed of the fans is controlled by using a temperature sensor.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: September 22, 2009
    Assignee: Hitachi, Ltd.
    Inventors: Tsuyoshi Sasagawa, Hirokazu Takahashi, Takahiko Iwasaki, Taro Takahashi, Chikazu Yokoi
  • Patent number: 7441130
    Abstract: A controller performs data communication with a host system based on fiber channel protocol and controls data input/output to or from a SATA disk drive. The controller includes an FC/SATA converter powered by a main power supply, and a resource management processor powered by a standby power supply. The resource management processor controls the power supply from the main power supply to the FC/SATA converter.
    Type: Grant
    Filed: September 13, 2005
    Date of Patent: October 21, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Daisuke Isobe, Azuma Kano, Takahiko Iwasaki, Tsuyoshi Sasagawa, Midori Kurokawa
  • Publication number: 20080239656
    Abstract: In the disk array system, in the basic chassis, HDD modules are installed from a front surface in a front part of a backboard, and duplex CTL modules are installed up and down from a rear surface in a rear part, and duplex power source modules containing fans are installed in the left and right sides thereof. By the operation of the fans, in the rear part, the cooling air flows separately into each CTL module and into each power source module, and the cooling air having passed through the area of the duct by a block in the CTL module is drawn by the fans in the power source module through a ventilation hole and is then exhausted outside. The cooling air flow path to the plurality of ICs is divided by the block. The rotation speed of the fans is controlled by using a temperature sensor.
    Type: Application
    Filed: January 30, 2008
    Publication date: October 2, 2008
    Applicant: Hitachi, Ltd.
    Inventors: Tsuyoshi Sasagawa, Hirokazu Takahashi, Takahiko Iwasaki, Taro Takahashi, Chikazu Yokoi
  • Publication number: 20080239657
    Abstract: The disk array system includes: controller modules, power source modules, and battery modules of a basic chassis; enclosure modules and power source modules of an expanded chassis; and operation levers which are commonly used for operations of insertion/removal and fixation of the modules. The operation lever includes a rotary shaft portion serving as a fulcrum point, a lever main body and a latch portion located on one side of the lever, and a hook portion located on the other side thereof. When a module is inserted and fixed, a user rotates the lever main body. By this means, the latch portion and the hook portion are fixed to a receiving portion and the module is connected and fixed to the backboard with a connector.
    Type: Application
    Filed: February 8, 2008
    Publication date: October 2, 2008
    Inventors: Yuri Oyama, Tsuyoshi Sasagawa, Yuki Sakuma, Chikazu Yokoi