Patents by Inventor Izuru Narita

Izuru Narita 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: 10713215
    Abstract: A method for allocating non-conflicting inode numbers between files generated at a first location and files generated at another location is provided. The method includes providing an inode number allocation rule table indicating availability for assignment a plurality of inode number allocation rules associated with the first location and the another location, generating a fileset at the first location by assigning an available inode number allocation rule to the fileset, registering, in the inode number allocation rule table, information associated with the fileset, and generating a file at the first location by determining the fileset within which to generate the file; and allocating an inode number for the file based on the available inode number allocation rule assigned to the fileset.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: July 14, 2020
    Assignee: International Business Machines Corporation
    Inventors: Tohru Hasegawa, Sosuke Matsui, Izuru Narita
  • Patent number: 10320195
    Abstract: A data center operable using only electric power based on renewable energy. The data center includes at least one device driven by the electric power, a storage battery for storing the electric power, and a controller for switching the operating mode of the device over the course of time on the basis of predicted values for the amount of electric power generated using renewable energy, the amount of electric power stored in the storage battery, and the amount of electric power consumed by the device.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: June 11, 2019
    Assignee: International Business Machines Corporation
    Inventor: Izuru Narita
  • Patent number: 10250040
    Abstract: A data center operable using only electric power based on renewable energy. The data center includes at least one device driven by the electric power, a storage battery for storing the electric power, and a controller for switching the operating mode of the device over the course of time on the basis of predicted values for the amount of electric power generated using renewable energy, the amount of electric power stored in the storage battery, and the amount of electric power consumed by the device.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: April 2, 2019
    Assignee: International Business Machines Corporation
    Inventor: Izuru Narita
  • Publication number: 20180109135
    Abstract: A data center operable using only electric power based on renewable energy. The data center includes at least one device driven by the electric power, a storage battery for storing the electric power, and a controller for switching the operating mode of the device over the course of time on the basis of predicted values for the amount of electric power generated using renewable energy, the amount of electric power stored in the storage battery, and the amount of electric power consumed by the device.
    Type: Application
    Filed: December 19, 2017
    Publication date: April 19, 2018
    Inventor: Izuru Narita
  • Patent number: 9871408
    Abstract: A data center operable using only electric power based on renewable energy. The data center includes at least one device driven by the electric power, a storage battery for storing the electric power, and a controller for switching the operating mode of the device over the course of time on the basis of predicted values for the amount of electric power generated using renewable energy, the amount of electric power stored in the storage battery, and the amount of electric power consumed by the device.
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: January 16, 2018
    Assignee: International Business Machines Corporation
    Inventor: Izuru Narita
  • Publication number: 20170139932
    Abstract: A method for allocating non-conflicting inode numbers between files generated at a first location and files generated at another location is provided. The method includes providing an inode number allocation rule table indicating availability for assignment a plurality of inode number allocation rules associated with the first location and the another location, generating a fileset at the first location by assigning an available inode number allocation rule to the fileset, registering, in the inode number allocation rule table, information associated with the fileset, and generating a file at the first location by determining the fileset within which to generate the file; and allocating an inode number for the file based on the available inode number allocation rule assigned to the fileset.
    Type: Application
    Filed: November 13, 2015
    Publication date: May 18, 2017
    Inventors: Tohru Hasegawa, Sosuke Matsui, Izuru Narita
  • Publication number: 20170110881
    Abstract: A data center operable using only electric power based on renewable energy. The data center includes at least one device driven by the electric power, a storage battery for storing the electric power, and a controller for switching the operating mode of the device over the course of time on the basis of predicted values for the amount of electric power generated using renewable energy, the amount of electric power stored in the storage battery, and the amount of electric power consumed by the device.
    Type: Application
    Filed: December 23, 2016
    Publication date: April 20, 2017
    Inventor: Izuru Narita
  • Publication number: 20150280492
    Abstract: A data center operable using only electric power based on renewable energy. The data center includes at least one device driven by the electric power, a storage battery for storing the electric power, and a controller for switching the operating mode of the device over the course of time on the basis of predicted values for the amount of electric power generated using renewable energy, the amount of electric power stored in the storage battery, and the amount of electric power consumed by the device.
    Type: Application
    Filed: February 11, 2015
    Publication date: October 1, 2015
    Inventor: Izuru Narita
  • Patent number: 9086810
    Abstract: Data is recorded such that the positions of data will be aligned in a traveling direction and a width direction of the storage medium. The medium travels in the traveling direction from a first to a second position as a certain wrap of a group of plural files in a first physical range between the first and the second positions. A head shifts from the certain wrap to another wrap in the width direction of the medium. The medium travels in the traveling direction from a third to a fourth position as the other wrap of a group of plural files in a second physical range between the third and the fourth positions. The plural files in groups on the certain wrap and the other wrap may be written in reverse order to each other after being once stored in a buffer.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: July 21, 2015
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Hiroshi Itagaki, Takashi Katagiri, Yohichi Miwa, Yumi Mori, Yoshikuni Murakami, Izuru Narita, Yutaka Oishi, Kazuhiro Tsuruta
  • Patent number: 9086809
    Abstract: Data is recorded such that the positions of data will be aligned in a traveling direction and a width direction of the storage medium. The medium travels in the traveling direction from a first to a second position as a certain wrap of a group of plural files in a first physical range between the first and the second positions. A head shifts from the certain wrap to another wrap in the width direction of the medium. The medium travels in the traveling direction from a third to a fourth position as the other wrap of a group of plural files in a second physical range between the third and the fourth positions. The plural files in groups on the certain wrap and the other wrap may be written in reverse order to each other after being once stored in a buffer.
    Type: Grant
    Filed: September 22, 2014
    Date of Patent: July 21, 2015
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Hiroshi Itagaki, Takashi Katagiri, Yohichi Miwa, Yumi Mori, Yoshikuni Murakami, Izuru Narita, Yutaka Oishi, Kazuhiro Tsuruta
  • Publication number: 20150116859
    Abstract: Data is recorded such that the positions of data will be aligned in a traveling direction and a width direction of the storage medium. The medium travels in the traveling direction from a first to a second position as a certain wrap of a group of plural files in a first physical range between the first and the second positions. A head shifts from the certain wrap to another wrap in the width direction of the medium. The medium travels in the traveling direction from a third to a fourth position as the other wrap of a group of plural files in a second physical range between the third and the fourth positions. The plural files in groups on the certain wrap and the other wrap may be written in reverse order to each other after being once stored in a buffer.
    Type: Application
    Filed: October 17, 2014
    Publication date: April 30, 2015
    Applicant: International Business Machines Corporation
    Inventors: Hiroshi Itagaki, Takashi Katagiri, Yohichi Miwa, Yumi Mori, Yoshikuni Murakami, Izuru Narita, Yutaka Oishi, Kazuhiro Tsuruta
  • Publication number: 20150116858
    Abstract: Data is recorded such that the positions of data will be aligned in a traveling direction and a width direction of the storage medium. The medium travels in the traveling direction from a first to a second position as a certain wrap of a group of plural files in a first physical range between the first and the second positions. A head shifts from the certain wrap to another wrap in the width direction of the medium. The medium travels in the traveling direction from a third to a fourth position as the other wrap of a group of plural files in a second physical range between the third and the fourth positions. The plural files in groups on the certain wrap and the other wrap may be written in reverse order to each other after being once stored in a buffer.
    Type: Application
    Filed: September 22, 2014
    Publication date: April 30, 2015
    Applicant: International Business Machines Corporation
    Inventors: HIROSHI ITAGAKI, Takashi Katagiri, Yohichi Miwa, Yumi Mori, Yoshikuni Murakami, Izuru Narita, Yutaka Oishi, Kazuhiro Tsuruta
  • Patent number: 7472558
    Abstract: A method of determining optimal air conditioner control is provided that includes determining power consumptions of servers and computer room air conditioners, calculating a number of calories processed by each air conditioner and determining a total number of calories processed as a total heat processed load. Moreover, the method includes determining relevant factors between each of the servers and each of the air conditioners, calculating a percentage of the total heat processed load for each air conditioner, adjusting the corresponding percentage of the total heat processed load for each air conditioner using an operating efficiency curve, calculating a respective power to be consumed by each air conditioner, calculating an efficiency value, determining whether the efficiency value is a maximum efficiency value, and setting each air conditioner at the respective power to be consumed when the efficiency value is the maximum efficiency value.
    Type: Grant
    Filed: April 15, 2008
    Date of Patent: January 6, 2009
    Assignee: International Business Machines (IBM) Corporation
    Inventor: Izuru Narita
  • Patent number: 7103768
    Abstract: A user 100 makes an inquiry through a billing institution 103 to a gene analyzing institution 104 retaining gene analysis information, and the billing institution 103 transfers the gene analysis information received from the gene analyzing institution 104 to the user 100 using a routing address that was dynamically set. The gene analysis information is encrypted at the gene analyzing institution 104 in such a way that decryption at the billing institution 103 is infeasible. Since the gene analyzing institution 104 cannot identify the user 100, and the billing institution 103 cannot know the content of the gene analysis information, privacy of the user 100 can thus be protected.
    Type: Grant
    Filed: June 12, 2002
    Date of Patent: September 5, 2006
    Assignee: International Business Machines Corporation
    Inventors: Izuru Narita, Yoshihiko Terashita
  • Publication number: 20020199097
    Abstract: A user 100 makes an inquiry through a billing institution 103 to a gene analyzing institution 104 retaining gene analysis information, and the billing institution 103 transfers the gene analysis information received from the gene analyzing institution 104 to the user 100 using a routing address that was dynamically set. The gene analysis information is encrypted at the gene analyzing institution 104 in such a way that decryption at the billing institution 103 is infeasible. Since the gene analyzing institution 104 cannot identify the user 100, and the billing institution 103 cannot know the content of the gene analysis information, privacy of the user 100 can thus be protected.
    Type: Application
    Filed: June 12, 2002
    Publication date: December 26, 2002
    Applicant: International Business Machines Corporation
    Inventors: Izuru Narita, Yoshihiko Terashita
  • Patent number: 6170016
    Abstract: A content collection part compares the transmission rate (TD) inputted from a transmission rate monitoring part with a threshold value (C−&agr;) in response to a start operation by a user. When a condition TD<(C−&agr;) is satisfied, the content collection part starts an automatic content collection part to perform a background process to collect URL contents which were set up beforehand from a Web server. When the user designates URL contents, the content collection part controls the automatic content collection part to terminate the background process and enters a foreground process to collect the designated URL contents.
    Type: Grant
    Filed: December 9, 1998
    Date of Patent: January 2, 2001
    Assignee: International Business Machines Corp.
    Inventors: Shinji Nakai, Izuru Narita, Hidefumi Suzuki, Takayuki Tanaka
  • Patent number: 6045398
    Abstract: The battery accepting unit for a battery operated electric/electronic apparatus includes a plurality of positive terminals and a plurality of negative terminals. The battery accepting unit has a first position whereat a battery is connected by a pair of positive and negative terminals; a second position whereat a battery is connected by another pair of positive and negative terminals; a third position that can serve as both said first and said second positions; and a fourth position whereat a battery is connected by all positive and negative terminals. According to the battery accepting unit of the present invention, a battery pack can be exchanged without halting the power supply to an electric/electronic apparatus. Since an auxiliary power source, such as a sub-battery, is not required for an electric/electronic apparatus, a single power system, including a DC/DC converter and a charging circuit, can be provided.
    Type: Grant
    Filed: April 13, 1998
    Date of Patent: April 4, 2000
    Assignee: International Business Machines Corporation
    Inventors: Izuru Narita, Mitsuo Horiuchi, Hidefumi Suzuki, Mitsuru Ogawa
  • Patent number: 6008627
    Abstract: A battery pack and an electric/electronic apparatus capable of reliably preventing an overvoltage from being applied to the battery pack without burning a fuse in the electric/electronic apparatus off. The battery pack comprises a battery cell such as a Lithium ion secondary battery, a charge current preventing FET1, a discharge current preventing FET2, a discharge current detecting resistor R2, and a FET control circuit for controlling the FET1 and the FET2, and is characterized in that the FET control circuit detects the value of the current flowing through the battery cell based upon the voltage across the resistor R2, and turns the discharge current preventing FET2 and the charge current preventing FET1 off when the discharge current I.sub.discharge increases to a value which is equal to or larger than the predetermined voltage I.sub.th.
    Type: Grant
    Filed: March 9, 1998
    Date of Patent: December 28, 1999
    Assignee: International Business Machines Corporation
    Inventor: Izuru Narita
  • Patent number: 5818203
    Abstract: Disclosed is an electronic apparatus which includes a power supply unit and a constant voltage rechargeable battery. The power supply unit activates a dedicated charging circuit, which is located near the battery, only at the charging end stage after the terminal voltage of the battery has attained a predetermined value, and provides constant voltage control for a charge current by using the charging circuit. The charging circuit, however, is not employed at the initial charging stage, where precise constant voltage control is not required. The output current, for which constant current control is performed by the AC adaptor, is employed unchanged as a charge current, with which quick charging is performed. That is, since a transformer in the charging circuit is not activated at the initial charging stage, a power loss, which accompanies the operation of the transformer, and heat generation and the occurrence of magnetic noise in the electronic apparatus can be reduced to a minimum.
    Type: Grant
    Filed: September 10, 1997
    Date of Patent: October 6, 1998
    Assignee: International Business Machines Corporation
    Inventor: Izuru Narita
  • Patent number: 5796982
    Abstract: An information processing device, such as a notebook computer, having a plurality of subsystems requiring power input, is provided with a switching regulator for supplying power to these various subsystems. The switching regulator is controlled by a feedback voltage which is selected to be a minimum value from amongst the various power lines present.
    Type: Grant
    Filed: July 28, 1995
    Date of Patent: August 18, 1998
    Assignee: International Business Machines Corporation
    Inventors: Tomoyuki Iwami, Izuru Narita