Patents by Inventor Kazuya Okamoto

Kazuya Okamoto 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).

  • Publication number: 20080231278
    Abstract: A radio-frequency coil has a first element and a second element both being adjacently arranged so as to nip a division/join portion. The first element has a first main loop portion provided along an arrangement plain surface and a first sub-loop portion provided along a surface substantially perpendicular to the arrangement plain surface. The second element has a second main loop portion provided along the arrangement plain surface and a second sub-loop portion provided facing the first sub-loop. The first sub-loop portion and the second sub-loop portion generate an induced electromotive force such that, among magnetic fields generated when a current flows in one coil, a summation of the magnetic fields, which interlink with the other coil, becomes zero.
    Type: Application
    Filed: March 17, 2008
    Publication date: September 25, 2008
    Inventors: Takahiro ISHIHARA, Kazuya Okamoto, Shinji Mitsui
  • Patent number: 7427517
    Abstract: A stacking apparatus that stacks chip assemblies each having a plurality of chips disposed continuously with circuit patterns and electrodes, includes: a plurality of stages each allowed to move arbitrarily, on which the chip assemblies are placed; a storage unit that stores an estimated extent of change in a position of an electrode at each chip, expected to occur as heat is applied to the chip assemblies placed on the plurality of stages during a stacking process; and a control unit that sets positions of the plurality of stages to be assumed relative to each other during the stacking process based upon the estimated extent of change in the position of the electrode at each chip provided from the storage unit and position information indicating positions of individual chips formed at the chip assemblies and controls at least one of the plurality of stages.
    Type: Grant
    Filed: July 6, 2006
    Date of Patent: September 23, 2008
    Assignee: Nikon Corporation
    Inventor: Kazuya Okamoto
  • Publication number: 20080224701
    Abstract: A radio frequency coil unit includes a plurality of surface coils and a distributing/combining unit. The plurality of surface coils are arranged in a body-axis direction. The distributing/combining unit distributes and combines reception signals output from the plurality of surface coils to generate a new reception signal.
    Type: Application
    Filed: April 22, 2008
    Publication date: September 18, 2008
    Inventor: Kazuya OKAMOTO
  • Publication number: 20080157772
    Abstract: A radio frequency coil assembly is provided. The radio frequency coil assembly includes: a first radio frequency coil for receiving a magnetic resonance signal from a tested body; a second radio frequency coil for receiving a magnetic resonance signal from the tested body; and a third radio frequency coil for receiving a magnetic resonance signal from the tested body and having a shape which is different from that of at least one of the first and second radio frequency coils so as to increase a local sensitivity in an image-picked-up region.
    Type: Application
    Filed: March 4, 2008
    Publication date: July 3, 2008
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MEDICAL SYSTEMS CORPORATION
    Inventors: Kazuya Okamoto, Shinji Mitsui, Manabu Ishii
  • Patent number: 7394253
    Abstract: A radio frequency coil assembly is provided. The radio frequency coil assembly includes: a first radio frequency coil for receiving a magnetic resonance signal from a tested body; a second radio frequency coil for receiving a magnetic resonance signal from the tested body; and a third radio frequency coil for receiving a magnetic resonance signal from the tested body and having a shape which is different from that of at least one of the first and second radio frequency coils so as to increase a local sensitivity in an image-picked-up region.
    Type: Grant
    Filed: November 16, 2005
    Date of Patent: July 1, 2008
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Kazuya Okamoto, Shinji Mitsui, Manabu Ishii
  • Patent number: 7380571
    Abstract: A valve accommodating hole (11), and each of a supply port (20), discharge ports (21 and 22), and output ports (23 and 24) connected to the valve accommodating hole are formed in a valve casing (15), and a valve shaft (12) is attached to the valve accommodating hole (11) so as to be reciprocable in the axial direction. Circular rubber elastic valve elements (51 and 52) are attached to the valve shaft (12) and used for switching between a communication state where either one of the elastic valve elements is spaced away from an inner peripheral sealing surface of the valve accommodating hole (11) such that the supply port (20) and the respective output port (23 or 24) communicate with each other and a shut-off state where either one of the elastic valve elements comes in contact with the inner peripheral sealing surface such that the communication is shut off.
    Type: Grant
    Filed: June 3, 2005
    Date of Patent: June 3, 2008
    Assignee: Koganei Corporation
    Inventor: Kazuya Okamoto
  • Publication number: 20070285199
    Abstract: A array coil including at least three conductive elements arranged at predetermined intervals, each of the conductive elements being in the form of a loop, and a plurality of switches that enable the conductive elements to be connected together according to a plurality of connecting patterns.
    Type: Application
    Filed: June 6, 2007
    Publication date: December 13, 2007
    Applicants: DENSO CORPORATION, TOSHIBA MEDICAL SYSTEMS CORPORATION
    Inventors: Kazuya Okamoto, Takahiro Ishihara
  • Patent number: 7227361
    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: Grant
    Filed: March 30, 2006
    Date of Patent: June 5, 2007
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kazuya Okamoto, Yoshinori Hamamura, Yoshio Machida
  • Patent number: 7218106
    Abstract: A magnetic resonance imaging apparatus of the invention comprises a static magnetic field generation unit which generates a static magnetic field in a gantry, a gradient magnetic field generation unit which applies a gradient magnetic field to a object in the static magnetic field, a radio frequency coil which receives a magnetic resonance signal from the object to which the gradient magnetic field is applied, a contour detection unit which detects a contour of the object, a coil movement unit which moves the radio frequency coil on the basis of the detected contour while the radio frequency coil is placed near and far relative to the object, and an image generation unit which generates a magnetic resonance image on the basis of the received magnetic resonance signal.
    Type: Grant
    Filed: September 28, 2004
    Date of Patent: May 15, 2007
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Yasutake Yasuhara, Kazuya Okamoto, Masaaki Yamanaka, Manabu Ishii, Tsutomu Igarashi, Shigehide Kuhara
  • Publication number: 20070069729
    Abstract: A radio frequency coil unit includes a plurality of surface coils and a distributing/combining unit. The plurality of surface coils are arranged in a body-axis direction. The distributing/combining unit distributes and combines reception signals output from the plurality of surface coils to generate a new reception signal.
    Type: Application
    Filed: July 21, 2006
    Publication date: March 29, 2007
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventor: Kazuya Okamoto
  • Patent number: 7183562
    Abstract: Charged-particle-beam (CPB) mapping projection-optical systems and adjustment methods for such systems are disclosed that can be performed quickly and accurately. In a typical system, an irradiation beam is emitted from a source, passes through an irradiation-optical system, and enters a Wien filter (“E×B”). Upon passing through the E×B, the irradiation beam passes through an objective-optical system and is incident on an object surface. Such impingement generates an observation beam that returns through the objective-optical system and the E×B in a different direction to a detector via an imaging-optical system. An adjustment-beam source emits an adjustment beam used for adjusting and aligning the position of, e.g., the object surface and/or the Wien's condition of the E×B. The adjustment beam can be off-axis relative to the objective-optical system. For such adjusting and aligning, fiducial marks (situated, e.g.
    Type: Grant
    Filed: April 25, 2006
    Date of Patent: February 27, 2007
    Assignee: Nikon Corporation
    Inventors: Hiroshi Nishimura, Naoto Kihara, Kinya Kato, Toru Takagi, Akihiro Goto, Junji Ikeda, Kazuya Okamoto
  • Publication number: 20070035301
    Abstract: A coil support unit for use in a magnetic resonance imaging apparatus provided with a top board for placing thereon a subject, and a radio frequency coil provided on an upper surface of the top board, the magnetic resonance imaging apparatus imaging the subject utilizing the radio frequency coil, the coil support unit includes a port configured to electrically connect the radio frequency coil to a signal cable, the signal cable transmitting at least one of a transmission signal supplied to the radio frequency coil, and a magnetic resonance signal detected by the radio frequency coil, and a support member provided on the upper surface of the top board and including a guide groove formed therein, the guide groove permitting the port to slide therein.
    Type: Application
    Filed: August 10, 2006
    Publication date: February 15, 2007
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MEDICAL SYSTEMS CORPORATION
    Inventors: Kazuto Nakabayashi, Kazuya Okamoto
  • Patent number: 7176689
    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: October 17, 2005
    Date of Patent: February 13, 2007
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yoshio Machida, Yoshinori Hamamura, Yoshimori Kassai, Kazuya Okamoto, Kazuhiro Soma
  • Publication number: 20060273440
    Abstract: A stacking apparatus that stacks chip assemblies each having a plurality of chips disposed continuously with circuit patterns and electrodes, includes: a plurality of stages each allowed to move arbitrarily, on which the chip assemblies are placed; a storage unit that stores an estimated extent of change in a position of an electrode at each chip, expected to occur as heat is applied to the chip assemblies placed on the plurality of stages during a stacking process; and a control unit that sets positions of the plurality of stages to be assumed relative to each other during the stacking process based upon the estimated extent of change in the position of the electrode at each chip provided from the storage unit and position information indicating positions of individual chips formed at the chip assemblies and controls at least one of the plurality of stages.
    Type: Application
    Filed: July 6, 2006
    Publication date: December 7, 2006
    Inventor: Kazuya Okamoto
  • Publication number: 20060267588
    Abstract: A high-frequency coil for a magnetic resonance imaging apparatus, includes two end members formed of a conductive material and arranged opposite to each other, a plurality of rod members, each of which is formed of a conductive material having a rod shape, and has one end portion connected to one of the two end members and the other end portion connected to the other of the two end members, and at least one additional member formed of a conductive member having a rod shape, the additional member having both ends connected to one of the rod members, the additional member being disposed outside a first imaging region formed by the end members and the rod members, and forming a second imaging region.
    Type: Application
    Filed: May 25, 2006
    Publication date: November 30, 2006
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Kazuya Okamoto, Manabu Ishii
  • Publication number: 20060267586
    Abstract: A radio frequency coil assembly is provided. The radio frequency coil assembly includes: a first radio frequency coil for receiving a magnetic resonance signal from a tested body; a second radio frequency coil for receiving a magnetic resonance signal from the tested body; and a third radio frequency coil for receiving a magnetic resonance signal from the tested body and having a shape which is different from that of at least one of the first and second radio frequency coils so as to increase a local sensitivity in an image-picked-up region.
    Type: Application
    Filed: November 16, 2005
    Publication date: November 30, 2006
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MEDICAL SYSTEMS CORPORATION
    Inventors: Kazuya Okamoto, Shinji Mitsui, Manabu Ishii
  • Publication number: 20060227606
    Abstract: An electronic control apparatus such as an ECU of a motor vehicle contains first and second microcomputers, with the first microcomputer having a substantially higher data receiving performance than the second microcomputer. Data for updating a ROM of the second microcomputer, transmitted to the first microcomputer from an external apparatus at a relatively high data rate, are temporarily stored in RAM by the first microcomputer and then transmitted to the second microcomputer at a rate which is appropriate for the receiving performance of the second microcomputer.
    Type: Application
    Filed: March 22, 2006
    Publication date: October 12, 2006
    Applicant: DENSO CORPORATION
    Inventor: Kazuya Okamoto
  • 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: 20060192120
    Abstract: Charged-particle-beam (CPB) mapping projection-optical systems and adjustment methods for such systems are disclosed that can be performed quickly and accurately. In a typical system, an irradiation beam is emitted from a source, passes through an irradiation-optical system, and enters a Wien filter (“E×B”). Upon passing through the E×B, the irradiation beam passes through an objective-optical system and is incident on an object surface. Such impingement generates an observation beam that returns through the objective-optical system and the E×B in a different direction to a detector via an imaging-optical system. An adjustment-beam source emits an adjustment beam used for adjusting and aligning the position of, e.g., the object surface and/or the Wien's condition of the E×B. The adjustment beam can be off-axis relative to the objective-optical system. For such adjusting and aligning, fiducial marks (situated, e.g.
    Type: Application
    Filed: April 25, 2006
    Publication date: August 31, 2006
    Inventors: Hiroshi Nishimura, Naoto Kihara, Kinya Kato, Toru Takagi, Akihiro Goto, Junji Ikeda, Kazuya Okamoto
  • 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