Patents by Inventor Kouichi Murayama

Kouichi Murayama 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: 11762562
    Abstract: The present invention aims to specify a bottlenecked resource more accurately in an IT system. In a performance analysis apparatus which includes a processing device, a storage device and an input/output interface and analyzes a performance of an IT system, the processing device creates an overall performance prediction model by using a nonlinear regression algorithm with a first overall performance value being set as an objective variable and with a first resource performance value being set as an explanatory variable, creates an explanatory model by inputting the overall performance prediction model and using an XAI technology and calculates a degree of per-resource influence on the overall performance value which is output by inputting a second resource performance value into the explanatory model.
    Type: Grant
    Filed: March 8, 2021
    Date of Patent: September 19, 2023
    Assignee: HITACHI, LTD.
    Inventors: Mineyoshi Masuda, Yosuke Himura, Kouichi Murayama
  • Patent number: 11734063
    Abstract: Execution end timing of a jobnet is predicted with stable accuracy. An information processing apparatus executes jobnet execution time prediction model generation processing for generating an execution time prediction model for predicting execution time of a jobnet to be executed on the basis of information associated with execution time of each of previously executed jobnets, a prediction model accuracy determination processing for calculating prediction accuracy for the execution time of each of jobnets by the generated execution time prediction model, and delay determination processing for determining whether to predict execution end timing of a designated jobnet among a jobnet group that is a set of a plurality of jobnets currently being executed or to be subsequently executed on the basis of the execution time prediction model, on the basis of the calculated prediction accuracy for the execution time of each of the jobnets.
    Type: Grant
    Filed: March 11, 2021
    Date of Patent: August 22, 2023
    Assignee: HITACHI, LTD.
    Inventors: Jun Kitawaki, Takashi Tameshige, Yasuyuki Tamai, Kouichi Murayama, Mineyoshi Masuda, Yosuke Himura
  • Patent number: 11474884
    Abstract: Provided are an event monitoring apparatus and an event monitoring method that make it possible to set a proper threshold without handling monitoring target systems on an individual basis. There are included: a threshold determination program calculating degree of similarity between a ledger guide message and an event message, regarding a maximum value of the calculated degree of similarity as a first threshold, and setting a second threshold that is greater than the first threshold by a predetermined value; a ledger allocation program associating a ledger guide message having the degree of similarity intermediate between the first threshold and the second threshold with the event message; and a threshold evaluation program reporting the degree of similarity to a manager of a monitoring target system when the degree of similarity is higher than the first threshold.
    Type: Grant
    Filed: March 4, 2021
    Date of Patent: October 18, 2022
    Assignee: HITACHI, LTD.
    Inventors: Takashi Tameshige, Yasuyuki Tamai, Mineyoshi Masuda, Yosuke Himura, Kouichi Murayama
  • Publication number: 20220066842
    Abstract: Provided are an event monitoring apparatus and an event monitoring method that make it possible to set a proper threshold without handling monitoring target systems on an individual basis. There are included: a threshold determination program calculating degree of similarity between a ledger guide message and an event message, regarding a maximum value of the calculated degree of similarity as a first threshold, and setting a second threshold that is greater than the first threshold by a predetermined value; a ledger allocation program associating a ledger guide message having the degree of similarity intermediate between the first threshold and the second threshold with the event message; and a threshold evaluation program reporting the degree of similarity to a manager of a monitoring target system when the degree of similarity is higher than the first threshold.
    Type: Application
    Filed: March 4, 2021
    Publication date: March 3, 2022
    Applicant: HITACHI, LTD.
    Inventors: Takashi TAMESHIGE, Yasuyuki TAMAI, Mineyoshi MASUDA, Yosuke HIMURA, Kouichi MURAYAMA
  • Publication number: 20210382751
    Abstract: Execution end timing of a jobnet is predicted with stable accuracy. An information processing apparatus executes jobnet execution time prediction model generation processing for generating an execution time prediction model for predicting execution time of a jobnet to be executed on the basis of information associated with execution time of each of previously executed jobnets, a prediction model accuracy determination processing for calculating prediction accuracy for the execution time of each of jobnets by the generated execution time prediction model, and delay determination processing for determining whether to predict execution end timing of a designated jobnet among a jobnet group that is a set of a plurality of jobnets currently being executed or to be subsequently executed on the basis of the execution time prediction model, on the basis of the calculated prediction accuracy for the execution time of each of the jobnets.
    Type: Application
    Filed: March 11, 2021
    Publication date: December 9, 2021
    Inventors: Jun KITAWAKI, Takashi TAMESHIGE, Yasuyuki TAMAI, Kouichi MURAYAMA, Mineyoshi MASUDA, Yosuke HIMURA
  • Publication number: 20210365189
    Abstract: The present invention aims to specify a bottlenecked resource more accurately in an IT system. In a performance analysis apparatus which includes a processing device, a storage device and an input/output interface and analyzes a performance of an IT system, the processing device creates an overall performance prediction model by using a nonlinear regression algorithm with a first overall performance value being set as an objective variable and with a first resource performance value being set as an explanatory variable, creates an explanatory model by inputting the overall performance prediction model and using an XAI technology and calculates a degree of per-resource influence on the overall performance value which is output by inputting a second resource performance value into the explanatory model.
    Type: Application
    Filed: March 8, 2021
    Publication date: November 25, 2021
    Applicant: Hitachi, Ltd.
    Inventors: Mineyoshi Masuda, Yosuke Himura, Kouichi Murayama
  • Publication number: 20180165380
    Abstract: First-type metadata of unstructured data is associated with second-type metadata including content information indicating one or more content attributes of the unstructured data. For each of one or more pieces of unstructured data, two or more pieces of first-type metadata include: a first piece which is original metadata of the unstructured data; and a second piece based on a copy of the first piece with which the second-type metadata appropriate to a retrieval condition is associated. A data processing system displays information relating to a plurality of virtual volumes recommended for parallel use. The plurality of virtual volumes are associated with two or more second pieces of first-type metadata based on one or a plurality of overlapping degrees of a plurality of pieces of first-type metadata with which a plurality of pieces of second-type metadata appropriate to at least one of a plurality of retrieval conditions are associated.
    Type: Application
    Filed: March 29, 2016
    Publication date: June 14, 2018
    Applicant: HITACHI, LTD.
    Inventors: Tsukasa SHIBAYAMA, Hironori EMARU, Kouichi MURAYAMA
  • Publication number: 20100036050
    Abstract: Provided are a vinyl monomer-grafted alkoxysilane-modified oxyalkylene resin which is useful as a raw material for a modified silicone based elastic adhesive and excellent in storage stability and adhesiveness and furthermore, cures with moisture excellently within a short time period, a production method for the resin, and a curable composition containing the resin. Specifically disclosed is a vinyl monomer-grafted alkoxysilane-modified oxyalkylene resin, which is produced by a method including grafting of a vinyl monomer by using an oxyalkylene based polymer as a raw material, in which the vinyl monomer includes a vinyl monomer containing 50 wt % or more of one or more of kinds of (meth)acrylic monomers, and the vinyl monomer is subjected to a graft reaction by using an alkyl peroxide as a radical reaction initiator.
    Type: Application
    Filed: August 3, 2007
    Publication date: February 11, 2010
    Inventors: Tsuyoshi Iwa, Kouichi Murayama, Tatsuya Shibata, Takashi Kanno, Atsushi Saito, Yutaka Watanabe
  • Publication number: 20090111952
    Abstract: A (meth)acrylate-grafted polyether polyol produced by reacting 40 to 95 parts by weight of a polyoxyalkylene polyol and 5 to 60 parts by weight of a vinyl monomer, both relative to 100 parts by weight of the sum total of the polyoxyalkylene polyol and the vinyl monomer, and 0.1 to 5 moles of an alkyl peroxide as a radical initiator per mole of the hydroxyl group in the polyoxyalkylene polyol, wherein the polyoxyalkylene polyol has a hydroxyl number of 25 mg KOH/g or less, and the vinyl monomer contains a (meth)acrylate and/or a hydroxyl-containing (meth)acrylate in an amount of 50% by weight or higher. The (meth)acrylate-grafted polyether polyol is excellent in colorless-transparency, compatibility, mechanical strength, weather resistance, and blending resistance, and therefore is useful as a raw material for a polyurethane resin cured article.
    Type: Application
    Filed: August 31, 2006
    Publication date: April 30, 2009
    Inventors: Tamotsu Kunihiro, Shinsuke Matsumoto, Tsuyoshi Iwa, Kouichi Murayama
  • Patent number: 6667416
    Abstract: To provide a method for producing polyester polyol that can provide a simple process to produce extensively improved production efficiencies and also produce the polyester polyol of stable in quality, an apparatus for producing the polyester polyol produced by the method, a polyester polyol produced by the method, and a polyurethane foam obtained by use of the polyester polyol produced by the method, polyethylene terephthalate and raw polyol are allowed to react in a reaction vessel to produce polyester polyol and also ethylene glycol which is a by-product of the reaction is distilled off and the distillate is modified in a modifying vessel so that it can have a predetermined hydroxyl value and then is fed to the reaction vessel again as the raw glycol, to thereby produce the polyester polyol.
    Type: Grant
    Filed: July 26, 2001
    Date of Patent: December 23, 2003
    Assignee: Mitsui Takeda Chemicals, Inc.
    Inventors: Kouichi Murayama, Katsumi Inaoka, Takashi Kumaki
  • Patent number: 6660236
    Abstract: Apparatus for decomposing a polyurethane resin and recovering the decomposed polyurethane resin as a polyamine compound and a polyol compound. The apparatus includes a first reactor that decomposes the polyurethane resin as the target compound of hydrolysis decomposition; a second reactor that hydrolyzes the decomposed target compound of decomposition with either one of supercritical water and high-temperature high-pressure water to a decomposition product mixture; a water supplier that feeds either one of supercritical water and high-temperature high-pressure water to the second reactor; and a post-processor that causes the decomposition product mixture discharged from the second reactor to be subjected to a post treatment procedure, such as dehydration, addition, distillation, separation, and liquid separation to recover the polyamine compound and the polyol compound.
    Type: Grant
    Filed: October 1, 1999
    Date of Patent: December 9, 2003
    Assignees: Takeda Chemical Industries, Ltd., Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Katsuhisa Kodama, Kouichi Murayama, Takashi Kumaki, Fumihiko Kasuya, Yoshiyuki Nagase, Masaaki Nakata, Satoshi Nishida
  • Patent number: 6489373
    Abstract: The present invention provides a method of recovering a polyamine compound and/or a polyol compound useful for starting materials of polyurethane resin in an industrially advantageous manner by first dissolving the polyurethane resin such as polyurethane foams discharged in a large amount as industrial wastes in a solubilizing agent containing a polyamine compound, a low molecular glycol or an amino alcohol, hydrolyzing the resulting solution with liquid water at 200 to 320° C., then recovering the polyamino compound and/or polyol compound thus formed.
    Type: Grant
    Filed: October 1, 1999
    Date of Patent: December 3, 2002
    Assignee: Mitsui Takeda Chemicals Inc.
    Inventors: Katsuhisa Kodama, Kouichi Murayama, Takashi Kumaki
  • Publication number: 20020049258
    Abstract: The present invention provides a method of recovering a polyamine compound and/or a polyol compound useful for starting materials of polyurethane resin in an industrially advantageous manner by first dissolving the polyurethane resin such as polyurethane foams discharged in a large amount as industrial wastes in a solubilizing agent containing a polyamine compound, a low molecular glycol or an amino alcohol, hydrolyzing the resulting solution with liquid water at 200 to 320° C., then recovering the polyamino compound and/or polyol compound thus formed.
    Type: Application
    Filed: October 1, 1999
    Publication date: April 25, 2002
    Inventors: KATSUHISA KODAMA, KOUICHI MURAYAMA, TAKASHI KUMAKI
  • Publication number: 20020035166
    Abstract: To provide a method for producing polyester polyol that can provide a simple process to produce extensively improved production efficiencies and also produce the polyester polyol of stable in quality, an apparatus for producing the polyester polyol produced by the method, a polyester polyol produced by the method, and a polyurethane foam obtained by use of the polyester polyol produced by the method, polyethylene terephthalate and raw polyol are allowed to react in a reaction vessel to produce polyester polyol and also ethylene glycol which is a by-product of the reaction is distilled off and the distillate is modified in a modifying vessel so that it can have a predetermined hydroxyl value and then is fed to the reaction vessel again as the raw glycol, to thereby produce the polyester polyol.
    Type: Application
    Filed: July 26, 2001
    Publication date: March 21, 2002
    Inventors: Kouichi Murayama, Katsumi Inaoka, Takashi Kumaki