Patents by Inventor Toshinobu OHARA

Toshinobu OHARA 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: 11181897
    Abstract: A damage probability calculation device which calculates a damage probability in an evaluation target region of a gas turbine computes strength distributions including a mean, a standard deviation and a certainty factor of the strength of a material used for the evaluation target region with respect to stresses on the basis of strength test data of the material. In addition, the damage probability calculation device computes stress distributions including the mean, the standard deviation and the certainty factor of stresses input to the evaluation target region on the basis of operation data of the gas turbine acquired through a sensor. Further, the damage probability calculation device computes damage probability distributions indicating distributions of damage probabilities of the evaluation target region on the basis of the strength distributions and the stress distributions.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: November 23, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Yoshitomo Miyagi, Toshinobu Ohara, Hideaki Kaneko
  • Publication number: 20210302017
    Abstract: A combustor component according to at least one embodiment of the present invention includes a cylindrical body which internally includes a combustion chamber, and includes a weld part where a plurality of through holes opening to the combustion chamber are formed, and a housing which is disposed on an outer circumferential side of the cylindrical body to cover a part of the weld part, and defines an acoustic damping space communicating with the combustion chamber via at least one of the through holes. The plurality of through holes in the weld part has a formation density which is higher in a first region of the weld part covered with the housing than in a second region of the weld part positioned outside the housing.
    Type: Application
    Filed: November 1, 2019
    Publication date: September 30, 2021
    Inventors: Kentaro TOKUYAMA, Hiroaki KISHIDA, Taiki KINOSHITA, Hiroki SHIBATA, Toshinobu OHARA
  • Publication number: 20200376552
    Abstract: A three-dimensional additive manufacturing method for building a three-dimensional object by layering an additive manufactured material based on design data of the three-dimensional object includes a specific part identification step of identifying a specific part included as a part in the three-dimensional object based on the design data, a specific part manufacturing condition determination step of determining whether to apply a specific manufacturing condition different from a normal manufacturing condition for building a normal part other than the specific part of the three-dimensional object to building the specific part and determining a manufacturing condition of the specific part, and a manufacturing condition setting transmission step of transmitting a manufacturing condition setting with which the normal part other than the specific part is built under the normal manufacturing condition while the specific part is built under the manufacturing condition determined in the specific part manufacturing c
    Type: Application
    Filed: March 27, 2018
    Publication date: December 3, 2020
    Inventors: Takahiro FUKUDA, Toshinobu OHARA, Takanao KOMAKI, Atsushi NAGAME
  • Publication number: 20190338382
    Abstract: A method of heat-treating for a metal molded article includes: a shape holding layer formation step of forming on a shape holding layer having a melting point higher than a solidus temperature Ts of a composition of the metal molded article on a surface of the metal molded article by treating the metal molded article; and a first heat-treatment step of performing a first heat treatment on the metal molded article at a first temperature T1, after forming the shape holding layer. When a reference temperature Ta is a temperature lower than the solidus temperature Ts by 100° C., and Tm is the melting point of the shape holding layer, the shape holding layer formation step and the first heat-treatment step are performed so as to satisfy an expression Ta?T1?Tm.
    Type: Application
    Filed: January 31, 2018
    Publication date: November 7, 2019
    Inventors: Kousuke FUJIWARA, Hidetaka HARAGUCHI, Shuji TANIGAWA, Masashi KITAMURA, Masaki TANEIKE, Nobuhiko SAITO, Toshinobu OHARA
  • Publication number: 20190294157
    Abstract: A damage probability calculation device which calculates a damage probability in an evaluation target region of a gas turbine computes strength distributions including a mean, a standard deviation and a certainty factor of the strength of a material used for the evaluation target region with respect to stresses on the basis of strength test data of the material. In addition, the damage probability calculation device computes stress distributions including the mean, the standard deviation and the certainty factor of stresses input to the evaluation target region on the basis of operation data of the gas turbine acquired through a sensor. Further, the damage probability calculation device computes damage probability distributions indicating distributions of damage probabilities of the evaluation target region on the basis of the strength distributions and the stress distributions.
    Type: Application
    Filed: March 6, 2019
    Publication date: September 26, 2019
    Inventors: Yoshitomo MIYAGI, Toshinobu OHARA, Hideaki KANEKO
  • Publication number: 20190276923
    Abstract: Provided is a method for manufacturing a metal molded article capable of suppressing leaching of a molten liquid that may be created due to heat treatment of a metal member, from the metal member. The method for manufacturing a metal molded article includes the steps of: applying a ceramic coating to a metal member; and performing heat treatment of the metal member to which the ceramic coating has been applied.
    Type: Application
    Filed: February 4, 2019
    Publication date: September 12, 2019
    Inventors: Shuji TANIGAWA, Masashi KITAMURA, Kosuke FUJIWARA, Toshinobu OHARA, Masaki TANEIKE, Takahiro FUKUDA