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).
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Patent number: 11762562Abstract: 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: GrantFiled: March 8, 2021Date of Patent: September 19, 2023Assignee: HITACHI, LTD.Inventors: Mineyoshi Masuda, Yosuke Himura, Kouichi Murayama
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Patent number: 11734063Abstract: 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: GrantFiled: March 11, 2021Date of Patent: August 22, 2023Assignee: HITACHI, LTD.Inventors: Jun Kitawaki, Takashi Tameshige, Yasuyuki Tamai, Kouichi Murayama, Mineyoshi Masuda, Yosuke Himura
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Patent number: 11474884Abstract: 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: GrantFiled: March 4, 2021Date of Patent: October 18, 2022Assignee: HITACHI, LTD.Inventors: Takashi Tameshige, Yasuyuki Tamai, Mineyoshi Masuda, Yosuke Himura, Kouichi Murayama
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Publication number: 20220066842Abstract: 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: ApplicationFiled: March 4, 2021Publication date: March 3, 2022Applicant: HITACHI, LTD.Inventors: Takashi TAMESHIGE, Yasuyuki TAMAI, Mineyoshi MASUDA, Yosuke HIMURA, Kouichi MURAYAMA
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Publication number: 20210382751Abstract: 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: ApplicationFiled: March 11, 2021Publication date: December 9, 2021Inventors: Jun KITAWAKI, Takashi TAMESHIGE, Yasuyuki TAMAI, Kouichi MURAYAMA, Mineyoshi MASUDA, Yosuke HIMURA
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Publication number: 20210365189Abstract: 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: ApplicationFiled: March 8, 2021Publication date: November 25, 2021Applicant: Hitachi, Ltd.Inventors: Mineyoshi Masuda, Yosuke Himura, Kouichi Murayama
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Publication number: 20180165380Abstract: 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: ApplicationFiled: March 29, 2016Publication date: June 14, 2018Applicant: HITACHI, LTD.Inventors: Tsukasa SHIBAYAMA, Hironori EMARU, Kouichi MURAYAMA
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Publication number: 20100036050Abstract: 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: ApplicationFiled: August 3, 2007Publication date: February 11, 2010Inventors: Tsuyoshi Iwa, Kouichi Murayama, Tatsuya Shibata, Takashi Kanno, Atsushi Saito, Yutaka Watanabe
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Publication number: 20090111952Abstract: 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: ApplicationFiled: August 31, 2006Publication date: April 30, 2009Inventors: Tamotsu Kunihiro, Shinsuke Matsumoto, Tsuyoshi Iwa, Kouichi Murayama
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Patent number: 6667416Abstract: 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: GrantFiled: July 26, 2001Date of Patent: December 23, 2003Assignee: Mitsui Takeda Chemicals, Inc.Inventors: Kouichi Murayama, Katsumi Inaoka, Takashi Kumaki
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Patent number: 6660236Abstract: 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: GrantFiled: October 1, 1999Date of Patent: December 9, 2003Assignees: Takeda Chemical Industries, Ltd., Kabushiki Kaisha Kobe Seiko ShoInventors: Katsuhisa Kodama, Kouichi Murayama, Takashi Kumaki, Fumihiko Kasuya, Yoshiyuki Nagase, Masaaki Nakata, Satoshi Nishida
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Patent number: 6489373Abstract: 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: GrantFiled: October 1, 1999Date of Patent: December 3, 2002Assignee: Mitsui Takeda Chemicals Inc.Inventors: Katsuhisa Kodama, Kouichi Murayama, Takashi Kumaki
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Publication number: 20020049258Abstract: 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: ApplicationFiled: October 1, 1999Publication date: April 25, 2002Inventors: KATSUHISA KODAMA, KOUICHI MURAYAMA, TAKASHI KUMAKI
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Publication number: 20020035166Abstract: 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: ApplicationFiled: July 26, 2001Publication date: March 21, 2002Inventors: Kouichi Murayama, Katsumi Inaoka, Takashi Kumaki