Patents by Inventor Yoshinori Hamamura

Yoshinori Hamamura 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: 7109713
    Abstract: A magnetic resonance imaging apparatus acquires magnetic resonance signals by the PI method using an RF coil unit having basic coils serving as surface coils which are arrayed with at least two coils along a static magnetic field direction (z direction) and at least two coils along each of two orthogonal x, y directions. The coils are divided into an upper unit and a lower unit. The upper unit and lower unit are fixed by a band or the like to allow them to be mounted on an object to be examined. The signals detected by the respective surface coils are sent to a data processing system through independent receiver units and formed into a magnetic resonance image.
    Type: Grant
    Filed: July 14, 2005
    Date of Patent: September 19, 2006
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kazuya Okamoto, Yoshinori Hamamura, Yoshio Machida
  • Publication number: 20060181279
    Abstract: A magnetic resonance imaging apparatus acquires magnetic resonance signals by the PI method using an RF coil unit having basic coils serving as surface coils which are arrayed with at least two coils along a static magnetic field direction (Z direction) and and at least two coils along each of two orthogonal x, y directions. The coils are divided into an upper unit and a lower unit. The upper unit and lower unit are fixed by a band or the like to allow them to be mounted on an object to be examined. The signals detected by the respective surface coils are sent to a data processing system through independent receiver unit and formed into a magnetic resonance image.
    Type: Application
    Filed: March 30, 2006
    Publication date: August 17, 2006
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Kazuya Okamoto, Yoshinori Hamamura, Yoshio Machida
  • Publication number: 20060087320
    Abstract: A magnetic resonance imaging system includes an MR signal reception apparatus comprising a receiving multi-coil and a switchover member. The receiving multi-coil receives MR signals and is composed of a plurality of element coils. The switchover member is configured to switch reception states of the MR signals received by the plurality of element coils in response to imaging conditions. The switchover member connects output paths of the MR signals from the plurality of element coils to a receiver, to reception channels in the receiver in response to the imaging conditions. The reception channels is less in number than the element coils. The imaging conditions are for example directed to parallel MR imaging.
    Type: Application
    Filed: October 17, 2005
    Publication date: April 27, 2006
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Yoshio Machida, Yoshinori Hamamura, Yoshimori Kassai, Kazuya Okamoto, Kazuhiro Soma
  • Patent number: 7026818
    Abstract: A magnetic resonance imaging system includes an MR signal reception apparatus comprising a receiving multi-coil and a switchover member. The receiving multi-coil receives MR signals and is composed of a plurality of element coils. The switchover member is configured to switch reception states of the MR signals received by the plurality of element coils in response to imaging conditions. The switchover member connects output paths of the MR signals from the plurality of element coils to a receiver, to reception channels in the receiver in response to the imaging conditions. The reception channels is less in number than the element coils. The imaging conditions are for example directed to parallel MR imaging.
    Type: Grant
    Filed: December 12, 2002
    Date of Patent: April 11, 2006
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yoshio Machida, Yoshinori Hamamura, Yoshimori Kassai, Kazuya Okamoto, Kazuhiro Soma
  • Patent number: 6998843
    Abstract: A magnetic resonance imaging apparatus acquires magnetic resonance signals by the PI method using an RF coil unit having basic coils serving as surface coils which are arrayed with at least two coils along a static magnetic field direction (z direction) and at least two coils alone each of two orthogonal x, y directions. The coils are divided into an upper unit and a lower unit. The upper unit and lower unit are fixed by a band or the like to allow them to be mounted on an object to be examined. The signals detected by the respective surface coils are sent to a data processing system through independent receiver units and formed into a magnetic resonance image.
    Type: Grant
    Filed: January 14, 2005
    Date of Patent: February 14, 2006
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kazuya Okamoto, Yoshinori Hamamura, Yoshio Machida
  • Publication number: 20050264292
    Abstract: A magnetic resonance imaging apparatus acquires magnetic resonance signals by the PI method using an RF coil unit having basic coils serving as surface coils which are arrayed with at least two coils along a static magnetic field direction (z direction) and at least two coils along each of two orthogonal x, y directions. The coils are divided into an upper unit and a lower unit. The upper unit and lower unit are fixed by a band or the like to allow them to be mounted on an object to be examined. The signals detected by the respective surface coils are sent to a data processing system through independent receiver units and formed into a magnetic resonance image.
    Type: Application
    Filed: July 14, 2005
    Publication date: December 1, 2005
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Kazuya Okamoto, Yoshinori Hamamura, Yoshio Machida
  • Patent number: 6930481
    Abstract: A magnetic resonance imaging apparatus acquires magnetic resonance signals by the PI method using an RF coil unit having basic coils serving as surface coils which are arrayed with at least two coils along a static magnetic field direction (z direction) and at least two coils along each of two orthogonal x, y directions. The coils are divided into an upper unit and a lower unit. The upper unit and lower unit are fixed by a band or the like to allow them to be mounted on an object to be examined. The signals detected by the respective surface coils are sent to a data processing system through independent receiver units and formed into a magnetic resonance image.
    Type: Grant
    Filed: September 5, 2002
    Date of Patent: August 16, 2005
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kazuya Okamoto, Yoshinori Hamamura, Yoshio Machida
  • Publication number: 20050122113
    Abstract: A magnetic resonance imaging apparatus acquires magnetic resonance signals by the PI method using an RF coil unit having basic coils serving as surface coils which are arrayed with at least two coils along a static magnetic field direction (z direction) and at least two coils along each of two orthogonal x, y directions. The coils are divided into an upper unit and a lower unit. The upper unit and lower unit are fixed by a band or the like to allow them to be mounted on an object to be examined. The signals detected by the respective surface coils are sent to a data processing system through independent receiver units and formed into a magnetic resonance image.
    Type: Application
    Filed: January 14, 2005
    Publication date: June 9, 2005
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Kazuya Okamoto, Yoshinori Hamamura, Yoshio Machida
  • Publication number: 20030132750
    Abstract: A magnetic resonance imaging system includes an MR signal reception apparatus comprising a receiving multi-coil and a switchover member. The receiving multi-coil receives MR signals and is composed of a plurality of element coils. The switchover member is configured to switch reception states of the MR signals received by the plurality of element coils in response to imaging conditions. The switchover member connects output paths of the MR signals from the plurality of element coils to a receiver, to reception channels in the receiver in response to the imaging conditions. The reception channels is less in number than the element coils. The imaging conditions are for example directed to parallel MR imaging.
    Type: Application
    Filed: December 12, 2002
    Publication date: July 17, 2003
    Inventors: Yoshio Machida, Yoshinori Hamamura, Yoshimori Kassai, Kazuya Okamoto, Kazuhiro Soma
  • Publication number: 20030094948
    Abstract: A magnetic resonance imaging apparatus acquires magnetic resonance signals by the PI method using an RF coil having basic coils serving as surface coils which are arrayed in twos in a static magnetic field direction (Z direction) and an X direction perpendicular thereto, an upper unit, and a lower unit. The upper unit and lower unit are fixed a band or the like to allow them to be mounted on an object to be examined. The signals detected by the respective surface coil is send to a data processing system through independent receiver unit and formed into a magnetic resonance image.
    Type: Application
    Filed: September 5, 2002
    Publication date: May 22, 2003
    Inventors: Kazuya Okamoto, Yoshinori Hamamura, Yoshio Machida
  • Publication number: 20010022515
    Abstract: A magnetic resonance imaging apparatus generates an MR signal from an object to be examined by applying a gradient field pulse generated by a gradient field coil and a high-frequency magnetic field pulse generated by a high-frequency coil onto the object in a static field generated by a static field magnet, and reconstructs an image on the basis of the MR signal. The gradient field coil is housed in a sealed vessel. A cable extending from an external power supply and connected to the gradient field coil has predetermined flexibility.
    Type: Application
    Filed: January 19, 2001
    Publication date: September 20, 2001
    Inventors: Masatoshi Yamashita, Manabu Ishii, Yoshitomo Sakakura, Hiromitsu Takamori, Kazuto Nakabayashi, Yoshinori Hamamura, Shinji Mitsui, Yasutake Yasuhara