Patents by Inventor Koji Muramatsu

Koji Muramatsu 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: 9910608
    Abstract: A storage system includes a storage unit and a control unit. Data is stored in the storage unit. The control unit performs replication of data that is updated, based on the frequency with which the data is updated. The control unit may include a frequency detection unit, a policy management unit, and a replication performance unit. The frequency detection unit detects the update frequency with which the data is updated, by detecting the number of times that the data is updated. The policy management unit determines a replication policy for the data based on the update frequency with which the data is updated. The replication performance unit performs replication of the updated data based on the replication policy.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: March 6, 2018
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Solutions Corporation
    Inventor: Koji Muramatsu
  • Publication number: 20160357460
    Abstract: A storage system includes a storage unit and a control unit. Data is stored in the storage unit. The control unit performs replication of data that is updated, based on the frequency with which the data is updated. The control unit may include a frequency detection unit, a policy management unit, and a replication performance unit. The frequency detection unit detects the update frequency with which the data is updated, by detecting the number of times that the data is updated. The policy management unit determines a replication policy for the data based on the update frequency with which the data is updated. The replication performance unit performs replication of the updated data based on the replication policy.
    Type: Application
    Filed: February 28, 2014
    Publication date: December 8, 2016
    Inventor: Koji MURAMATSU
  • Patent number: 8846152
    Abstract: There is provided an antioxidant agent capable of preventing scale from being produced on the surface of a heated metallic starting material more effectively than the conventional antioxidant agent. The antioxidant agent according to the present invention contains a plurality of glass frits having different softening points and an inorganic compound having a melting point not higher than 600° C. The inorganic compound mainly softens in the low-temperature range of about 600° C. The plurality of glass frits mainly soften in the low-temperature range of about 600 to 1300° C. Therefore, the antioxidant agent covers the surface of metallic starting material in a broad temperature range, oxidizes the surface of metallic starting material, and prevents the production of scale.
    Type: Grant
    Filed: July 13, 2011
    Date of Patent: September 30, 2014
    Assignee: Nippon Steel & Sumitomo Metal Corporation
    Inventors: Kazuhiro Shimoda, Tomio Yamakawa, Koji Muramatsu, Yuji Inoue, Junichi Nishimori, Yasuyoshi Hidaka, Keishi Matsumoto, Takahisa Kato, Shuichi Akiyama
  • Publication number: 20130115376
    Abstract: There is provided an antioxidant agent capable of preventing scale from being produced on the surface of a heated metallic starting material more effectively than the conventional antioxidant agent. The antioxidant agent according to the present invention contains a plurality of glass frits having different softening points and an inorganic compound having a melting point not higher than 600° C. The inorganic compound mainly softens in the low-temperature range of about 600° C. The plurality of glass frits mainly soften in the low-temperature range of about 600 to 1300° C. Therefore, the antioxidant agent covers the surface of metallic starting material in a broad temperature range, oxidizes the surface of metallic starting material, and prevents the production of scale.
    Type: Application
    Filed: July 13, 2011
    Publication date: May 9, 2013
    Inventors: Kazuhiro Shimoda, Tomio Yamakawa, Koji Muramatsu, Yuji Inoue, Junichi Nishimori, Yasuyoshi Hidaka, Keishi Matsumoto, Takahisa Kato, Shuichi Akiyama
  • Patent number: 8037732
    Abstract: A hole 30 is formed in the center of the rear end face 20 of a round billet 10. The hole 30 has a predetermined depth from the rear end face 20 and a plurality of grooves 31 are provided in the side surface thereof. Each groove 31 extends in the depth direction of the hole 30. Piercing and rolling of the round billet 10 having the hole 30 is performed using a piercing mill having a plug. During piercing and rolling, the bottom surface of the hole 30 is broken through by the plug and a protrusion which is to be the starting point of burrs is formed, and the protrusion is absorbed by the groove 31 as the plug advances. Consequently, formation of burrs at the rear end of a hollow shell after piercing-rolling thereof can be suppressed.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: October 18, 2011
    Assignee: Sumitomo Metal Industries, Ltd.
    Inventors: Kazuhiro Shimoda, Tomio Yamakawa, Koji Muramatsu, Yuji Inoue
  • Publication number: 20100175450
    Abstract: A hole 30 is formed in the center of the rear end face 20 of a round billet 10. The hole 30 has a predetermined depth from the rear end face 20 and a plurality of grooves 31 are provided in the side surface thereof. Each groove 31 extends in the depth direction of the hole 30. Piercing and rolling of the round billet 10 having the hole 30 is performed using a piercing mill having a plug. During piercing and rolling, the bottom surface of the hole 30 is broken through by the plug and a protrusion which is to be the starting point of burrs is formed, and the protrusion is absorbed by the groove 31 as the plug advances. Consequently, formation of burrs at the rear end of a hollow shell after piercing-rolling thereof can be suppressed.
    Type: Application
    Filed: March 29, 2010
    Publication date: July 15, 2010
    Inventors: Kazuhiro Shimoda, Tomio Yamakawa, Koji Muramatsu, Yuji Inoue
  • Patent number: 6898639
    Abstract: A distributed-processing system, composed of a first computer and a second computer, in which the first computer transfers, to the second computer, a pattern ID assigned to a series of commands instead of the series of commands in order to reduce the communications traffic in case of transferring the same series of commands.
    Type: Grant
    Filed: March 5, 2001
    Date of Patent: May 24, 2005
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Koji Muramatsu
  • Patent number: 6678742
    Abstract: An object-oriented computer system includes a server-side class library for generating a server-side object which relays a processing request from an application on the server side to the client side, a client-side class library for generating a client-side object which actually executes processing on the basis of the processing request relayed by the server-side object, and an object generation section which, when the server-side object is generated using the server-side class library by executing the application, generates the client-side object.
    Type: Grant
    Filed: April 4, 2000
    Date of Patent: January 13, 2004
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Koji Muramatsu, Yasushi Ono, Akihisa Sawada
  • Publication number: 20020091830
    Abstract: A distributed-processing system, composed of a first computer and a second computer, in which the first computer transfers, to the second computer, a pattern ID assigned to a series of commands instead of the series of commands in order to reduce the communications traffic in case of transferring the same series of commands.
    Type: Application
    Filed: March 5, 2001
    Publication date: July 11, 2002
    Inventor: Koji Muramatsu
  • Patent number: 6392718
    Abstract: A device and method for preventing flicker that occurs while displaying image data by attenuating a high-frequency portion of orthogonal transformed color signals of the image data. The present invention is also directed to a computer-readable recording medium on which a program for flicker prevention is recorded.
    Type: Grant
    Filed: September 29, 1999
    Date of Patent: May 21, 2002
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Koji Muramatsu
  • Publication number: 20010027462
    Abstract: The server connected to a client via a network has a relay library which includes an instruction relay thread which appends a thread identifier to an instruction, which is generated during processing of an application, and relays the instruction in collaboration with a higher-level library, and an instruction distribution thread for searching for a thread that processes another instruction from the client.
    Type: Application
    Filed: March 27, 2001
    Publication date: October 4, 2001
    Applicant: Kabushiki Kaisha Toshiba
    Inventor: Koji Muramatsu