Patents by Inventor Hiroshi Takai

Hiroshi Takai 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: 20110171885
    Abstract: A polishing pad shape measured by a polishing pad shape measuring apparatus is modified into a target shape of a polishing pad by using a dressing tool so that a wafer has a desired surface shape. The invention is a method for shape modification of a polishing pad 14 for polishing a workpiece into a desired surface shape, comprising: a measurement step S9 of measuring a polishing pad shape in a state of being attached to a plate 12 by using a polishing pad shape measuring apparatus 10; a condition determination step S10 of selecting a dressing recipe capable of polishing the workpiece into a desired surface shape from a plurality of pre-provided dressing recipes based on the measurement result in the measurement step S9; and a shape modification step S11 of dressing the polishing pad 14 by using the dressing recipe determined in the condition determination step S10.
    Type: Application
    Filed: December 29, 2010
    Publication date: July 14, 2011
    Applicant: SUMCO CORPORATION
    Inventors: Hiroshi Takai, Yuichi Nakayoshi
  • Publication number: 20110098552
    Abstract: According to one embodiment, a magnetic resonance imaging apparatus includes; a data collection unit which collects magnetic resonance data from a patient by a half Fourier method using a plurality of coils; an unfolding unit which performs an unfolding process on a plurality of items of folded image data obtained from the plurality of coils to generate unfolded image data by using sensitivity data of the plurality of coils; and a data processing unit which repeatedly performs a data filling process and a phase correction process to improve accuracy of data in an unsampled region to generate image data for display, the data filling process filling the unsampled region in k-space with k-space data obtained by Fourier-transforming the unfolded image data and the unsampled region being a region for which the data have not been collected.
    Type: Application
    Filed: October 22, 2010
    Publication date: April 28, 2011
    Inventor: Hiroshi Takai
  • Patent number: 7853059
    Abstract: The present invention provides a magnetic resonance imaging apparatus including a unit for specifying a plurality of regions of interest on a plurality of original images acquired by imaging several times while shifting imaging positions, a unit for finding an approximate line involved in the regions of interest on an image formed by combining the original images, and a determining unit for determining conditions required to image cross sections crossing the original images on the basis of the approximate line.
    Type: Grant
    Filed: November 29, 2006
    Date of Patent: December 14, 2010
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventor: Hiroshi Takai
  • Publication number: 20100285665
    Abstract: In a method of manufacturing semiconductor wafers, front and hack surfaces of the semiconductor wafers are simultaneously polished with a double-side polishing machine that includes: a carrier for accommodating the semiconductor wafer; and an upper press platen and a lower press platen for sandwiching the carrier. The method includes: accommodating the semiconductor wafer in the carrier while a thickness of the semiconductor wafer is set to be larger than a thickness of the carrier by 0 ?m to 5 ?m; and polishing the semiconductor wafer while feeding a polishing slurry to between the surfaces of the semiconductor wafer and surfaces of the press platens. In the polishing, an allowance of both surfaces of the semiconductor wafer is set at 5 ?m or less in total.
    Type: Application
    Filed: September 11, 2008
    Publication date: November 11, 2010
    Applicant: SUMCO TECHXIV CORPORATION
    Inventors: Hiroshi Takai, Kenji Satomura, Yuichi Nakayoshi, Katsutoshi Yamamoto, Kouji Mizowaki
  • Publication number: 20100197197
    Abstract: A polishing pad thickness measuring method measures the thickness of a polishing pad attached to an upper surface of a surface plate. The polishing pad thickness measuring method measures a first distance between an upper surface of the polishing pad and a reference position on a vertical line perpendicular to the surface of the polishing pad and a second distance between an upper surface of the surface plate and the reference position on the vertical line, and calculates the thickness of the polishing pad from the difference between the first and second distances.
    Type: Application
    Filed: January 27, 2010
    Publication date: August 5, 2010
    Applicant: SUMCO CORPORATION
    Inventors: Yuichi NAKAYOSHI, Hiroshi TAKAI, Hironori NISHIMURA
  • Patent number: 7689015
    Abstract: A magnetic resonance imaging apparatus comprises an imaging condition setting unit, a receiving unit, an image reconstructing unit, an image distortion correcting unit and an image correction estimating unit. The imaging condition setting unit sets mutually different image conditions. The receiving unit receives magnetic resonance signals from an imaging area according to the image conditions. The image reconstructing unit reconstructs a plurality of image data corresponding to the image conditions respectively based on the magnetic resonance signals. The image distortion correcting unit corrects distortions of the plurality of the image data based on a magnetic field distribution on the imaging area. The image correction estimating unit estimates whether a correction of at least one of the plurality of the image data is appropriate based on a plurality of corrected image data.
    Type: Grant
    Filed: December 29, 2005
    Date of Patent: March 30, 2010
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventor: Hiroshi Takai
  • Patent number: 7663364
    Abstract: A sequence control unit reconstructs image data by performing predetermined image reconstruction including data synthesis processing on a plurality of k-space data collected for each receiver channel. An inverse reconstructing unit creates k-space data synthesized from the K-space data by performing predetermined inverse reconstruction on the reconstructed image data. A data compressing unit compresses the k-space data, and stores the compressed k-space data into a k-space data storing unit.
    Type: Grant
    Filed: February 4, 2008
    Date of Patent: February 16, 2010
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventor: Hiroshi Takai
  • Publication number: 20080187203
    Abstract: A sequence control unit reconstructs image data by performing predetermined image reconstruction including data synthesis processing on a plurality of k-space data collected for each receiver channel. An inverse reconstructing unit creates k-space data synthesized from the K-space data by performing predetermined inverse reconstruction on the reconstructed image data. A data compressing unit compresses the k-space data, and stores the compressed k-space data into a k-space data storing unit.
    Type: Application
    Filed: February 4, 2008
    Publication date: August 7, 2008
    Inventor: Hiroshi Takai
  • Patent number: 7355408
    Abstract: A magnetic resonance imaging apparatus has a gradient magnetic unit that generates a gradient magnetic field, an obtention unit that obtains an oscillation characteristic of the magnetic resonance imaging apparatus according to a change of the gradient magnetic field caused by imaging plural slices and a judgment unit that judges whether sympathetic vibration occurs based on the obtained oscillation characteristic.
    Type: Grant
    Filed: July 7, 2005
    Date of Patent: April 8, 2008
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventor: Hiroshi Takai
  • Publication number: 20070280520
    Abstract: A magnetic resonance imaging apparatus comprises an imaging condition setting unit, a receiving unit, an image reconstructing unit, an image distortion correcting unit and an image correction estimating unit. The imaging condition setting unit sets mutually different image conditions. The receiving unit receives magnetic resonance signals from an imaging area according to the image conditions. The image reconstructing unit reconstructs a plurality of image data corresponding to the image conditions respectively based on the magnetic resonance signals. The image distortion correcting unit corrects distortions of the plurality of the image data based on a magnetic field distribution on the imaging area. The image correction estimating unit estimates whether a correction of at least one of the plurality of the image data is appropriate based on a plurality of corrected image data.
    Type: Application
    Filed: December 29, 2005
    Publication date: December 6, 2007
    Inventor: Hiroshi Takai
  • Publication number: 20070122019
    Abstract: The present invention provides a magnetic resonance imaging apparatus including a unit for specifying a plurality of regions of interest on a plurality of original images acquired by imaging several times while shifting imaging positions, a unit for finding an approximate line involved in the regions of interest on an image formed by combining the original images, and a determining unit for determining conditions required to image cross sections crossing the original images on the basis of the approximate line.
    Type: Application
    Filed: November 29, 2006
    Publication date: May 31, 2007
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MEDICAL SYSTEMS CORPORATION
    Inventor: Hiroshi Takai
  • Publication number: 20060100503
    Abstract: A magnetic resonance imaging system comprises a first RF coil for acquiring a magnetic resonance signal from a subject, and a device for estimating a cardiac phase of the subject based on the magnetic resonance signal acquired by the first RF coil. The first RF coil, for example, is an RF coil exclusive to cardiac phase estimation. The magnetic resonance imaging system further comprises a second RF coil for acquiring a magnetic resonance signal based on the estimated cardiac phase, and a device for reconstructing a magnetic resonance image of the subject based on the magnetic resonance signal acquired by the second RF coil. Thus, MRA can be performed by estimating a cardiac phase.
    Type: Application
    Filed: March 25, 2005
    Publication date: May 11, 2006
    Applicants: KABUSHIKI KAISHA TOSHIBA, MEDICAL SYSTEMS CORPORATION
    Inventors: Hiroshi Takai, Yoshimori Kassai
  • Publication number: 20050270030
    Abstract: A magnetic resonance imaging apparatus comprises a gradient magnetic unit that generates a gradient magnetic field, an obtention unit that obtains an oscillation characteristic of an magnetic resonance imaging apparatus according to a change of the gradient magnetic field caused by imaging plural slices and a judgment unit that judges whether sympathetic vibration occurs based on the obtained oscillation characteristic.
    Type: Application
    Filed: July 7, 2005
    Publication date: December 8, 2005
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventor: Hiroshi Takai
  • Patent number: 6781375
    Abstract: To optimize in advance a desired image quality determining pulse sequence parameter incorporated in an imaging scan, a preparation scan is adopted. The preparation scan is performed with the amount of at least one desired image quality parameter changed for each of plural preparatory images, so that a plurality of preparatory images at the desired same region of the object are acquired. For example, one such image quality parameter is TI (inversion time). The acquired preparatory scan data are processed into a plurality of preparatory images for display. A desired preparatory image is then selected from the plural preparatory images displayed, and the amount of the desired parameter used for that selected preparatory image is then set for use in the pulse sequence for a complete diagnostic imaging scan. Hence the desired image quality determining parameter of the pulse sequence is caused to have an optimum value before an actual complete diagnostic imaging scan.
    Type: Grant
    Filed: August 15, 2002
    Date of Patent: August 24, 2004
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Mitsue Miyazaki, Hiroshi Takai
  • Publication number: 20030042905
    Abstract: To optimize in advance an amount of a desired parameter incorporated in a pulse sequence performed by an imaging scan, a preparation scan is adopted. The preparation scan is performed with the amount of the desired parameter changed every preparatory image, so that data of a plurality of preparatory images at a desired region of the object can be acquired. For example, such parameter is a TI (inversion time) and its amount is a period of TI. The acquired data are produced into a plurality of preparatory images for display. A desired preparatory image is then selected from the plural preparatory images displayed, and the amount of the desired parameter given from the selected preparatory image is set to the pulse sequence. Hence the desired parameter of the pulse sequence is able to have an optimum amount before actual imaging.
    Type: Application
    Filed: August 15, 2002
    Publication date: March 6, 2003
    Inventors: Mitsue Miyazaki, Hiroshi Takai
  • Patent number: 6378251
    Abstract: A door assembly for vehicles includes a space defined between a door inner panel and a door trimming, in which a door locking device for holding a vehicle door on a vehicle body is accommodated so as to be secured on the door inner panel. A key cylinder and a connecting rod for a door outside handle are arranged between a door outer panel and the door inner panel, and a locking lever and an opening lever of the door locking device are placed in the space connected to the key cylinder and the connecting rod.
    Type: Grant
    Filed: August 31, 1999
    Date of Patent: April 30, 2002
    Assignees: Aisin Seiki Kabushiki Kaisha, Toyota Jidosha Kabushiki Kaisha
    Inventors: Ryoichi Fukumoto, Motohiro Kokubo, Masayuki Uchitsunemi, Keiichi Fukushima, Hiroshi Takai, Daiichi Shiraishi
  • Publication number: 20010022051
    Abstract: A door assemble for vehicles includes a space defined between a door inner panel and a door trimming, in which a door locking device for holding a vehicle door on a vehicle body is accommodated so as to be secured on the door inner panel.
    Type: Application
    Filed: August 31, 1999
    Publication date: September 20, 2001
    Inventors: RYOICHI FUKUMOTO, MOTOHIRO KOKUBO, MASAYUKI UCHITSUNEMI, KEIICHI FUKUSHIMA, HIROSHI TAKAI, DAIICHI SHIRAISHI
  • Patent number: 6231112
    Abstract: A vehicle door assembly includes a door inner panel having a hinge attachment portion on which is to be mounted a pair of door hinge devices and a lock attachment portion on which is to be mounted a door lock device. A base panel has four arm portions that connect the base panel to the door inner panel. The four arm portions include first and a second arm portions fixed to the hinge attachment portion of the door inner panel, and a third arm portion attached to the lock attachment portion of the door inner panel.
    Type: Grant
    Filed: August 31, 1999
    Date of Patent: May 15, 2001
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Ryoichi Fukumoto, Terutsugu Gotanda, Masaru Hoshina, Motohiro Kokubo, Masayuki Uchitsunemi, Keiichi Fukushima, Hiroshi Takai, Daiichi Shiraishi
  • Patent number: 6144202
    Abstract: A pair of gradient field pulses of the same applied time and the same intensity are applied before and after a radio-frequency (RF) refocusing pulse (180.degree. pulse) as additional gradient field pulses to enhance the phase shift of a transverse magnetization spin, caused by the diffusion of a molecule including a target nuclide. To compensate for image deterioration caused by an unnecessary field distribution which is produced by the additional gradient field pulses, a compensation gradient field pulse dGcp and a compensation offset gradient field dGoffset are applied and a center frequency at the time of receiving and detecting an echo signal is shifted by df.sub.0.
    Type: Grant
    Filed: March 9, 1998
    Date of Patent: November 7, 2000
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hitoshi Kanazawa, Hiroshi Takai
  • Patent number: 5788297
    Abstract: A resin-made shock absorbing member for a vehicle used as a bumper bean of the vehicle and the like and the method for producing the same. The resin-made shock absorbing member for the vehicle is structured to include an elongated curved portion (20) having a hollow portion, and an attachment portion (30) for fixing to a vehicle body (11) to be united and thus continuously formed with the curved portion (20) at both ends in the longitudinal direction of the curved portion (20). By structuring the attachment portions (30) to have a hollow portion and a solid portion, at least extending in the longitudinal direction of the curved portion (20), attachment work can be carried out from the outer side of the vehicle, and the shock absorbing function can be ensured along the whole length of the member (10).
    Type: Grant
    Filed: July 1, 1996
    Date of Patent: August 4, 1998
    Assignees: Idemitsu Petrochemical Co., Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Minoru Sugawara, Tetsuya Nakamura, Katsuhiko Tada, Hiroshi Takai, Hiroshi Jounishi, Yoshihide Endou, Ken Fukuda