Patents by Inventor Nobuhiro Yokoyama

Nobuhiro Yokoyama 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: 9070284
    Abstract: An object of the present invention is to provide a turbulence avoidance operation assist device that automatically generates an optimal trajectory of emergency avoidance and reports this trajectory to a pilot when distant turbulence is detected during an aircraft flight. The turbulence avoidance operation assist device in accordance with the present invention includes: means for detecting the presence of a danger region such as a turbulence region ahead of aircraft in a flight direction; means for representing the danger region as an assembly of rectangular solids when the detection means recognizes the danger region, and generating a flight trajectory by a local optimum solution of an avoidance trajectory using a convex quadratic programming method in which deviation from a reference trajectory is the smallest on the basis of an initial estimation solution obtained by a semidefinite programming method; and means for reporting the flight trajectory to a pilot.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: June 30, 2015
    Assignee: JAPAN AEROSPACE EXPLORATION AGENCY
    Inventors: Hamaki Inokuchi, Nobuhiro Yokoyama
  • Patent number: 8572430
    Abstract: Provided is a storage apparatus for providing a logical storage area as a data storage area to an external apparatus, comprising: a physical storage medium for creating the logical storage area; first and second storage control modules each of which is communicatively coupled to the physical storage medium to control data input/output processing between the external apparatus and the logical storage area; and first and second power supply modules each of which supplies power to the physical storage medium and the first and second storage control modules and includes a blower for generating a cooling airflow to cool down the physical storage medium and the first and second storage control modules, wherein the blower of the first power supply module generates a first cooling airflow which flows through the physical storage medium, the first storage control module, and the first power supply module, the blower of the second power supply module generates a second cooling airflow which flows through the physical s
    Type: Grant
    Filed: November 24, 2011
    Date of Patent: October 29, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Toshikatsu Nakamura, Mitsuhide Sato, Nobuhiro Yokoyama
  • Publication number: 20130139000
    Abstract: Provided is a storage apparatus for providing a logical storage area as a data storage area to an external apparatus, comprising: a physical storage medium for creating the logical storage area; first and second storage control modules each of which is communicatively coupled to the physical storage medium to control data input/output processing between the external apparatus and the logical storage area; and first and second power supply modules each of which supplies power to the physical storage medium and the first and second storage control modules and includes a blower for generating a cooling airflow to cool down the physical storage medium and the first and second storage control modules, wherein the blower of the first power supply module generates a first cooling airflow which flows through the physical storage medium, the first storage control module, and the first power supply module, the blower of the second power supply module generates a second cooling airflow which flows through the physical s
    Type: Application
    Filed: November 24, 2011
    Publication date: May 30, 2013
    Applicant: HITACHI LTD.
    Inventors: Toshikatsu Nakamura, Mitsuhide Sato, Nobuhiro Yokoyama
  • Publication number: 20110172919
    Abstract: An object of the present invention is to provide a turbulence avoidance operation assist device that automatically generates an optimal trajectory of emergency avoidance and reports this trajectory to a pilot when distant turbulence is detected during an aircraft flight. The turbulence avoidance operation assist device in accordance with the present invention includes: means for detecting the presence of a danger region such as a turbulence region ahead of aircraft in a flight direction; means for representing the danger region as an assembly of rectangular solids when the detection means recognizes the danger region, and generating a flight trajectory by a local optimum solution of an avoidance trajectory using a convex quadratic programming method in which deviation from a reference trajectory is the smallest on the basis of an initial estimation solution obtained by a semidefinite programming method; and means for reporting the flight trajectory to a pilot.
    Type: Application
    Filed: October 21, 2010
    Publication date: July 14, 2011
    Inventors: Hamaki Inokuchi, Nobuhiro Yokoyama
  • Patent number: 7925028
    Abstract: An electronic device having a first motor which rotates a rotating body (for example, blades) about a rotation axis and a second motor which vibrates a vibrator including the rotating body in the axial direction is provided. A control IC unit has a first circuit which subjects the rotation to control drive by a first waveform, and a second circuit which subjects the vibration to control drive by a second waveform. Rotation and vibration of a rotating and vibrating unit driven by the first and second motors generates an airflow and output sound by a synthesized output of a first output corresponding to the rotation and a second output corresponding to the vibration. The control IC unit generates a second waveform by using a reversed-phase waveform with respect to the first waveform or the like and suppresses the output sound by control of the first and second waveforms.
    Type: Grant
    Filed: February 6, 2008
    Date of Patent: April 12, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Nobuhiro Yokoyama, Takashi Chikusa, Masao Iwakura
  • Patent number: 7876557
    Abstract: A disk array device comprises: a hard disk drive module including a disk for recording information thereon and having one side that has a length substantially equal to the diameter of the disk; a battery nodule; an operation module; a fan module having at least one cooling fan; a controller module having a controller; a power supply module provided for supplying power to the modules; a circuit board to which the above-mentioned modules are connected via electrical connectors; and a substantially box-shaped chassis in which the modules and the circuit board are housed. A front surface and a rear surface of the chassis are opened in a rectangular shape. A length of one side of the opened front surface of the chassis is substantially the same length as the one side of the hard disk drive module.
    Type: Grant
    Filed: June 9, 2009
    Date of Patent: January 25, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Katsuyoshi Suzuki, Masahiko Sato, Kenichi Tateyama, Naoto Matsunami, Koichi Kimura, Hidehiko Iwasaki, Kenichi Takamoto, Kenji Muraoka, Takamasa Ishikawa, Nobuhiro Yokoyama, Kiyotaka Takahashi, Yoshinori Nagaiwa
  • Publication number: 20090237876
    Abstract: A disk array device comprises: a hard disk drive module including a disk for recording information thereon and having one side that has a length substantially equal to the diameter of the disk; a battery nodule; an operation module; a fan module having at least one cooling fan; a controller module having a controller; a power supply module provided for supplying power to the modules; a circuit board to which the above-mentioned modules are connected via electrical connectors; and a substantially box-shaped chassis in which the modules and the circuit board are housed. A front surface and a rear surface of the chassis are opened in a rectangular shape. A length of one side of the opened front surface of the chassis is substantially the same length as the one side of the hard disk drive module.
    Type: Application
    Filed: June 9, 2009
    Publication date: September 24, 2009
    Applicant: Hitachi, Ltd.
    Inventors: Katsuyoshi Suzuki, Masahiko Sato, Kenichi Tateyama, Naoto Matsunami, Koichi Kimura, Hidehiko Iwasaki, Kenichi Takamoto, Kenji Muraoka, Takamasa Ishikawa, Nobuhiro Yokoyama, Kiyotaka Takahashi, Yoshinori Nagaiwa
  • Patent number: 7558056
    Abstract: A disk array device comprises: a hard disk drive module including a disk for recording information thereon and having one side that has a length substantially equal to the diameter of the disk; a battery module; an operation module; a fan module having at least one cooling fan; a controller module having a controller; a power supply module provided for supplying power to the modules; a circuit board to which the above-mentioned modules are connected via electrical connectors; and a substantially box-shaped chassis in which the modules and the circuit board are housed. A front surface and a rear surface of the chassis are opened in a rectangular shape. A length of one side of the opened front surface of the chassis is substantially the same length as the one side of the hard disk drive module.
    Type: Grant
    Filed: February 21, 2008
    Date of Patent: July 7, 2009
    Assignee: Hitachi, Ltd.
    Inventors: Katsuyoshi Suzuki, Masahiko Sato, Kenichi Tateyama, Naoto Matsunami, Koichi Kimura, Hidehiko Iwasaki, Kenichi Takamoto, Kenji Muraoka, Takamasa Ishikawa, Nobuhiro Yokoyama, Kiyotaka Takahashi, Yoshinori Nagaiwa
  • Publication number: 20090129936
    Abstract: An electronic device having a first motor which rotates a rotating body (for example, blades) about a rotation axis and a second motor which vibrates a vibrator including the rotating body in the axial direction is provided. A control IC unit has a first circuit which subjects the rotation to control drive by a first waveform, and a second circuit which subjects the vibration to control drive by a second waveform. Rotation and vibration of a rotating and vibrating unit driven by the first and second motors generates an airflow and output sound by a synthesized output of a first output corresponding to the rotation and a second output corresponding to the vibration. The control IC unit generates a second waveform by using a reversed-phase waveform with respect to the first waveform or the like and suppresses the output sound by control of the first and second waveforms.
    Type: Application
    Filed: February 6, 2008
    Publication date: May 21, 2009
    Inventors: Nobuhiro YOKOYAMA, Takashi Chikusa, Masao Iwakura
  • Publication number: 20080144277
    Abstract: A disk array device comprises: a hard disk drive module including a disk for recording information thereon and having one side that has a length substantially equal to the diameter of the disk; a battery module; an operation module; a fan module having at least one cooling fan; a controller module having a controller; a power supply module provided for supplying power to the modules; a circuit board to which the above-mentioned modules are connected via electrical connectors; and a substantially box-shaped chassis in which the modules and the circuit board are housed. A front surface and a rear surface of the chassis are opened in a rectangular shape. A length of one side of the opened front surface of the chassis is substantially the same length as the one side of the hard disk drive module.
    Type: Application
    Filed: February 21, 2008
    Publication date: June 19, 2008
    Applicant: Hitachi, Ltd.
    Inventors: Katsuyoshi Suzuki, Masahiko Sato, Kenichi Tateyama, Naoto Matsunami, Koichi Kimura, Hidehiko Iwasaki, Kenichi Takamoto, Kenji Muraoka, Takamasa Ishikawa, Nobuhiro Yokoyama, Kiyotaka Takahashi, Yoshinori Nagaiwa
  • Publication number: 20060250768
    Abstract: A disk array device comprises: a hard disk drive module including a disk for recording information thereon and having one side that has a length substantially equal to the diameter of the disk; a battery module; an operation module; a fan module having at least one cooling fan; a controller module having a controller; a power supply module provided for supplying power to the modules; a circuit board to which the above-mentioned modules are connected via electrical connectors; and a substantially box-shaped chassis in which the modules and the circuit board are housed. A front surface and a rear surface of the chassis are opened in a rectangular shape. A length of one side of the opened front surface of the chassis is substantially the same length as the one side of the hard disk drive module.
    Type: Application
    Filed: July 6, 2006
    Publication date: November 9, 2006
    Applicant: Hitachi, Ltd.
    Inventors: Katsuyoshi Suzuki, Masahiko Sato, Kenichi Tateyama, Naoto Matsunami, Koichi Kimura, Hidehiko Iwasaki, Kenichi Takamoto, Kenji Muraoka, Takamasa Ishikawa, Nobuhiro Yokoyama, Kiyotaka Takahashi, Yoshinori Nagaiwa
  • Patent number: 7120016
    Abstract: A disk array device comprises: a hard disk drive module including a disk for recording information thereon and having one side that has a length substantially equal to the diameter of the disk; a battery module; an operation module; a fan module having at least one cooling fan; a controller module having a controller; a power supply module provided for supplying power to the modules; a circuit board to which the above-mentioned modules are connected via electrical connectors; and a substantially box-shaped chassis in which the modules and the circuit board are housed. A front surface and a rear surface of the chassis are opened in a rectangular shape. A length of one side of the opened front surface of the chassis is substantially the same length as the one side of the hard disk drive module.
    Type: Grant
    Filed: July 18, 2005
    Date of Patent: October 10, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Katsuyoshi Suzuki, Masahiko Sato, Kenichi Tateyama, Naoto Matsunami, Koichi Kimura, Hidehiko Iwasaki, Kenichi Takamoto, Kenji Muraoka, Takamasa Ishikawa, Nobuhiro Yokoyama, Kiyotaka Takahashi, Yoshinori Nagaiwa
  • Publication number: 20050248919
    Abstract: A disk array device comprises: a hard disk drive module including a disk for recording information thereon and having one side that has a length substantially equal to the diameter of the disk; a battery module; an operation module; a fan module having at least one cooling fan; a controller module having a controller; a power supply module provided for supplying power to the modules; a circuit board to which the above-mentioned modules are connected via electrical connectors; and a substantially box-shaped chassis in which the modules and the circuit board are housed. A front surface and a rear surface of the chassis are opened in a rectangular shape. A length of one side of the opened front surface of the chassis is substantially the same length as the one side of the hard disk drive module.
    Type: Application
    Filed: July 18, 2005
    Publication date: November 10, 2005
    Applicant: Hitachi, Ltd.
    Inventors: Katsuyoshi Suzuki, Masahiko Sato, Kenichi Tateyama, Naoto Matsunami, Koichi Kimura, Hidehiko Iwasaki, Kenichi Takamoto, Kenji Muraoka, Takamasa Ishikawa, Nobuhiro Yokoyama, Kiyotaka Takahashi, Yoshinori Nagaiwa
  • Patent number: 6950304
    Abstract: A disk array device comprises: a hard disk drive module including a disk for recording information thereon and having one side that has a length substantially equal to the diameter of the disk; a battery module; an operation module; a fan module having at least one cooling fan; a controller module having a controller; a power supply module provided for supplying power to the modules; a circuit board to which the above-mentioned modules are connected via electrical connectors; and a substantially box-shaped chassis in which the modules and the circuit board are housed. A front surface and a rear surface of the chassis are opened in a rectangular shape. A length of one side of the opened front surface of the chassis is substantially the same length as the one side of the hard disk drive module.
    Type: Grant
    Filed: June 13, 2003
    Date of Patent: September 27, 2005
    Assignee: Hitachi, Ltd.
    Inventors: Katsuyoshi Suzuki, Masahiko Sato, Kenichi Tateyama, Naoto Matsunami, Koichi Kimura, Hidehiko Iwasaki, Kenichi Takamoto, Kenji Muraoka, Takamasa Ishikawa, Nobuhiro Yokoyama, Kiyotaka Takahashi, Yoshinori Nagaiwa
  • Publication number: 20040037034
    Abstract: A disk array device comprises: a hard disk drive module including a disk for recording information thereon and having one side that has a length substantially equal to the diameter of the disk; a battery module; an operation module; a fan module having at least one cooling fan; a controller module having a controller; a power supply module provided for supplying power to the modules; a circuit board to which the above-mentioned modules are connected via electrical connectors; and a substantially box-shaped chassis in which the modules and the circuit board are housed. A front surface and a rear surface of the chassis are opened in a rectangular shape. A length of one side of the opened front surface of the chassis is substantially the same length as the one side of the hard disk drive module.
    Type: Application
    Filed: June 13, 2003
    Publication date: February 26, 2004
    Applicant: Hitachi, Ltd.
    Inventors: Katsuyoshi Suzuki, Masahiko Sato, Kenichi Tateyama, Naoto Matsunami, Koichi Kimura, Hidehiko Iwasaki, Kenichi Takamoto, Kenji Muraoka, Takamasa Ishikawa, Nobuhiro Yokoyama, Kiyotaka Takahashi, Yoshinori Nagaiwa