Patents by Inventor Yuji Chotoku

Yuji Chotoku 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: 20220004487
    Abstract: According to one embodiment, data stored in past can be effectively used without being influenced by the characteristics and capacity of a memory storing storable data. Maintenance data are generated by managing a state in a memory area, alert notification data are transferred on the basis of the generated maintenance data, and/or at least a part of the data which are already stored in the memory area is transferred.
    Type: Application
    Filed: September 20, 2021
    Publication date: January 6, 2022
    Applicants: KABUSHIKI KAISHA TOSHIBA, Toshiba Digital Solutions Corporation
    Inventors: Shinichi KASHIMOTO, Keisuke AZUMA, Yuji CHOTOKU
  • Publication number: 20180349265
    Abstract: According to one embodiment, data stored in past can be effectively used without being influenced by the characteristics and capacity of a memory storing storable data. Maintenance data are generated by managing a state in a memory area, alert notification data are transferred on the basis of the generated maintenance data, and/or at least a part of the data which are already stored in the memory area is transferred.
    Type: Application
    Filed: August 9, 2018
    Publication date: December 6, 2018
    Applicants: KABUSHIKI KAISHA TOSHIBA, Toshiba Digital Solutions Corporation
    Inventors: Shinichi KASHIMOTO, Keisuke AZUMA, Yuji CHOTOKU
  • Patent number: 7813892
    Abstract: A motion detection apparatus includes an acceleration sensor which detects acceleration generated by motion of an electronic device; a motion detecting section including a statistical processing section which calculates the average value of data provided from the acceleration sensor, calculates the difference between the average value and the last value of the data obtained, and calculates a pseudo-variance value of the data from the calculated difference; a threshold comparing section which compares the pseudo-variance value calculated by the motion detecting section with a motion threshold to generate a signal value in response to determination that the pseudo-variance value has exceeded the motion threshold; a first buffer memory which sequentially stores signal values generated by the threshold comparing section at predetermined time intervals; and a signal generating section which includes means for adding up values in the first buffer memory, thereby appropriately associating with motion.
    Type: Grant
    Filed: November 1, 2005
    Date of Patent: October 12, 2010
    Assignee: International Business Machines Corporation
    Inventors: Takashi Sugawara, Kohji Kawahara, Yuji Chotoku
  • Patent number: 7502952
    Abstract: A method and system are provided for thermal management of a CPU. Both hardware and software data are used to periodically calculate a power consumption index. An internal database is provided to convert power consumption data to rotational speed of an associated cooling fan for the CPU. Based upon a change in the calculated power consumption, the rotational speed of the fan may be adjusted to accommodate the change in power consumption. Accordingly, the method and system monitors and adjusts the rotational speed of the cooling fan based upon available hardware and software data.
    Type: Grant
    Filed: July 11, 2007
    Date of Patent: March 10, 2009
    Assignee: International Business Machines Corporation
    Inventors: Yuji Chotoku, Rieko Kataoka, Takayuki Katoh
  • Publication number: 20090006028
    Abstract: A motion detection apparatus includes an acceleration sensor which detects acceleration generated by motion of an electronic device; a motion detecting section including a statistical processing section which calculates the average value of data provided from the acceleration sensor, calculates the difference between the average value and the last value of the data obtained, and calculates a pseudo-variance value of the data from the calculated difference; a threshold comparing section which compares the pseudo-variance value calculated by the motion detecting section with a motion threshold to generate a signal value in response to determination that the pseudo-variance value has exceeded the motion threshold; a first buffer memory which sequentially stores signal values generated by the threshold comparing section at predetermined time intervals; and a signal generating section which includes means for adding up values in the first buffer memory, thereby appropriately associating acceleration with motion.
    Type: Application
    Filed: November 1, 2005
    Publication date: January 1, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Takashi Sugawara, Kohji Kawahara, Yuji Chotoku
  • Patent number: 7409565
    Abstract: A power control method for a magnetic disk unit is disclosed. The method includes identifying a type of a last instruction sent to a magnetic disk unit and, in response to identifying the type, setting a wait time that varies according to the type. In response to the wait time having elapsed after a completion of processing ordered by the last instruction, an idle instruction is sent to the magnetic disk unit for placing the magnetic disk unit in an idle state in which power consumption is reduced.
    Type: Grant
    Filed: December 15, 2005
    Date of Patent: August 5, 2008
    Assignee: Lenovo (Singapore) Pte. Ltd.
    Inventors: Yuji Chotoku, Takashi Sugawara, Takashi Yomo
  • Patent number: 7343505
    Abstract: A method and system are provided for thermal management of a CPU. Both hardware and software data are used to periodically calculate a power consumption index. An internal database is provided to convert power consumption data to rotational speed of an associated cooling fan for the CPU. Based upon a change in the calculated power consumption, the rotational speed of the fan may be adjusted to accommodate the change in power consumption. Accordingly, the method and system monitors and adjusts the rotational speed of the cooling fan based upon available hardware and software data.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: March 11, 2008
    Assignee: International Business Machines Corporation
    Inventors: Yuji Chotoku, Rieko Kataoka, Takayuki Katoh
  • Publication number: 20070252544
    Abstract: A method and system are provided for thermal management of a CPU. Both hardware and software data are used to periodically calculate a power consumption index. An internal database is provided to convert power consumption data to rotational speed of an associated cooling fan for the CPU. Based upon a change in the calculated power consumption, the rotational speed of the fan may be adjusted to accommodate the change in power consumption. Accordingly, the method and system monitors and adjusts the rotational speed of the cooling fan based upon available hardware and software data.
    Type: Application
    Filed: July 11, 2007
    Publication date: November 1, 2007
    Applicant: International Business Machines Corporation
    Inventors: Yuji Chotoku, Rieko Kataoka, Takayuki Katoh
  • Patent number: 7218221
    Abstract: A method and system are provided for detecting theft of a computer. A portable device is provided to wirelessly communicate with a theft deterrent function of the computer at a set frequency. In response to an increased distance between the portable device and the computer, a scan rate controller can automatically increase the scan rate for the wireless communication signal.
    Type: Grant
    Filed: April 27, 2005
    Date of Patent: May 15, 2007
    Assignee: Lenovo (Singapore) Pte. Ltd.
    Inventors: Kishiko Itoh, Hideto Horikoshi, Masaki Oie, Yuji Chotoku, Mark Cohen
  • Publication number: 20060244590
    Abstract: A method and system are provided for detecting theft of a computer. A portable device is provided to wirelessly communicate with a theft deterrent function of the computer at a set frequency. In response to an increased distance between the portable device and the computer, a scan rate controller can automatically increase the scan rate for the wireless communication signal.
    Type: Application
    Filed: April 27, 2005
    Publication date: November 2, 2006
    Inventors: Kishiko Itoh, Hideto Horikoshi, Masaki Oie, Yuji Chotoku, Mark Cohen
  • Publication number: 20060178108
    Abstract: An information processing device capable of controlling radio wave transmission is disclosed. The information processing device includes an acceleration detection unit and a flag setting unit. The acceleration detection unit detects an acceleration applied to the information processing device. In response to the magnitude of the detected acceleration and the magnitude of the tilt of an airplane determined from the detected acceleration being larger than a predetermined value, the flag setting unit sets a stopping flag. Then, the flag setting unit stops any radio wave transmission from the information processing device.
    Type: Application
    Filed: February 9, 2006
    Publication date: August 10, 2006
    Inventors: Yuji Chotoku, Kan Sasaki
  • Publication number: 20060136760
    Abstract: A power control method for a magnetic disk unit is disclosed. The method includes identifying a type of a last instruction sent to a magnetic disk unit and, in response to identifying the type, setting a wait time that varies according to the type. In response to the wait time having elapsed after a completion of processing ordered by the last instruction, an idle instruction is sent to the magnetic disk unit for placing the magnetic disk unit in an idle state in which power consumption is reduced.
    Type: Application
    Filed: December 15, 2005
    Publication date: June 22, 2006
    Inventors: Yuji Chotoku, Takashi Sugawara, Takashi Yomo
  • Publication number: 20060095796
    Abstract: A method and system are provided for thermal management of a CPU. Both hardware and software data are used to periodically calculate a power consumption index. An internal database is provided to convert power consumption data to rotational speed of an associated cooling fan for the CPU. Based upon a change in the calculated power consumption, the rotational speed of the fan may be adjusted to accommodate the change in power consumption. Accordingly, the method and system monitors and adjusts the rotational speed of the cooling fan based upon available hardware and software data.
    Type: Application
    Filed: October 28, 2004
    Publication date: May 4, 2006
    Inventors: Yuji Chotoku, Rieko Kataoka, Takayuki Katoh
  • Publication number: 20030154421
    Abstract: A storage device, as an example of an information processing device, includes an executing unit for executing any one of normal processing, first fault recovery processing and second fault recovery processing, a fault recovery processing unit for allowing the executing unit to initiate the first fault recovery processing with a prerequisite that the executing unit is not operating normally in a first period during the normal processing and for allowing the executing unit to initiate the second fault recovery processing with a prerequisite that the executing unit is not operating normally in a second period during the first fault recovery processing, and a failure information obtaining unit for obtaining an internal state of the executing unit after initiating the first fault recovery processing, the internal state being unobtainable after initiating the second fault recovery, as failure information.
    Type: Application
    Filed: December 12, 2002
    Publication date: August 14, 2003
    Applicant: International Business Machines Corporation
    Inventors: Atsushi Abe, Yuji Chotoku, Paul M. Greco, Minoru Hara, Takayuki Katoh, Toshiyuki Shiratori