Patents by Inventor Tetsuji Morita
Tetsuji Morita 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: 11972642Abstract: The present invention provides a rotating machinery diagnosis and monitoring device and method which have high reliability and enable the grasping of a symptom trend of vibrations and a determination of progress of the vibrations during increase and decrease in the rotation speed of a rotor. A rotating machinery diagnosis and monitoring device of the present invention, comprising: an input section that receives vibration values and rotation speeds as operation data of a rotating machine; a computing section that performs computations using the operation data received; and a calculator that includes an output section. The computing section is configured to identify peak values of the vibration values and evaluate each of magnitude of the peak values and the rotation speeds at the peak values. The output section is configured to display externally a result of evaluations performed by the computing section.Type: GrantFiled: January 14, 2021Date of Patent: April 30, 2024Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Tamami Kurihara, Kengo Iwashige, Tadaaki Kakimoto, Tetsuji Morita
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Patent number: 11886831Abstract: The present invention provides a data sorting device and method and a monitoring and diagnosis device, which are able to create a model conveniently. A data sorting device and a monitoring and diagnosis device of the present invention include an operating data database which stores operating data of the plant equipment in a time-series manner. The devices input the operating data that are highly associated physically and engineeringly among the operating data stored in the operating data database, inputting processing attributes relevant to the operating data that are highly associated physically and engineeringly, creating a model simulating characteristics of the plant equipment, and performing data sorting, monitoring, and diagnosis through use of the model.Type: GrantFiled: December 13, 2019Date of Patent: January 30, 2024Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Tamami Kurihara, Kengo Iwashige, Tetsuji Morita, Shigeki Tounosu, Tadaaki Kakimoto
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Patent number: 11650577Abstract: A plant operation data monitoring device comprises: an input section that receives operation data on a plant; and a calculator that includes databases storing the operation data received, and a computing section executing a program. The computing section stores the operation data received in a first database of the databases in time series. The computing section determines from peak values of the operation data stored whether gradients of the operation data are positive or negative, and then stores the gradients in a second database of the databases for positive gradients or in the second database of the databases for negative gradients in time series. The computing section determines threshold values for abnormality determination about the positive and negative gradients, divides the positive gradients and the negative gradients into normal values and abnormal values, and additionally stores the divided gradients in the second database for the positive or negative gradients.Type: GrantFiled: December 23, 2020Date of Patent: May 16, 2023Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Tamami Kurihara, Kengo Iwashige, Tadaaki Kakimoto, Tetsuji Morita
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Publication number: 20210302948Abstract: A plant operation data monitoring device comprises: an input section that receives operation data on a plant; and a calculator that includes databases storing the operation data received, and a computing section executing a program. The computing section stores the operation data received in a first database of the databases in time series. The computing section determines from peak values of the operation data stored whether gradients of the operation data are positive or negative, and then stores the gradients in a second database of the databases for positive gradients or in the second database of the databases for negative gradients in time series. The computing section determines threshold values for abnormality determination about the positive and negative gradients, divides the positive gradients and the negative gradients into normal values and abnormal values, and additionally stores the divided gradients in the second database for the positive or negative gradients.Type: ApplicationFiled: December 23, 2020Publication date: September 30, 2021Applicant: Mitsubishi Power, Ltd.Inventors: Tamami KURIHARA, Kengo IWASHIGE, Tadaaki KAKIMOTO, Tetsuji MORITA
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Publication number: 20210304521Abstract: The present invention provides a rotating machinery diagnosis and monitoring device and method which have high reliability and enable the grasping of a symptom trend of vibrations and a determination of progress of the vibrations during increase and decrease in the rotation speed of a rotor. A rotating machinery diagnosis and monitoring device of the present invention, comprising: an input section that receives vibration values and rotation speeds as operation data of a rotating machine; a computing section that performs computations using the operation data received; and a calculator that includes an output section. The computing section is configured to identify peak values of the vibration values and evaluate each of magnitude of the peak values and the rotation speeds at the peak values. The output section is configured to display externally a result of evaluations performed by the computing section.Type: ApplicationFiled: January 14, 2021Publication date: September 30, 2021Applicant: MITSUBISHI POWER, LTD.Inventors: Tamami KURIHARA, Kengo IWASHIGE, Tadaaki KAKIMOTO, Tetsuji MORITA
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Publication number: 20200210144Abstract: The present invention provides a data sorting device and method and a monitoring and diagnosis device, which are able to create a model conveniently. A data sorting device and a monitoring and diagnosis device of the present invention include an operating data database which stores operating data of the plant equipment in a time-series manner. The devices input the operating data that are highly associated physically and engineeringly among the operating data stored in the operating data database, inputting processing attributes relevant to the operating data that are highly associated physically and engineeringly, creating a model simulating characteristics of the plant equipment, and performing data sorting, monitoring, and diagnosis through use of the model.Type: ApplicationFiled: December 13, 2019Publication date: July 2, 2020Applicant: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Tamami KURIHARA, Kengo IWASHIGE, Tetsuji MORITA, Shigeki TOUNOSU, Tadaaki KAKIMOTO
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Patent number: 8020749Abstract: According to a metal joining method of the present invention, first and second dissimilar metals are joined together by interposing between the first and second metal materials a third metal material dissimilar to the first and second metal materials and causing eutectic melting at least either at an interface between the first and third metal materials or at an interface between the second and third metal materials.Type: GrantFiled: November 11, 2010Date of Patent: September 20, 2011Assignees: Nissan Motor Co., Ltd., Kojiro KobayashiInventors: Kojiro Kobayashi, Akio Hirose, Shigeyuki Nakagawa, Kenji Miyamoto, Minoru Kasukawa, Masayuki Inoue, Tetsuji Morita
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Patent number: 7984840Abstract: According to a metal joining method of the present invention, first and second dissimilar metals are joined together by interposing between the first and second metal materials a third metal material dissimilar to the first and second metal materials and causing eutectic melting at least either at an interface between the first and third metal materials or at an interface between the second and third metal materials.Type: GrantFiled: November 11, 2010Date of Patent: July 26, 2011Assignees: Nissan Motor Co., Ltd.Inventors: Kojiro Kobayashi, Akio Hirose, Shigeyuki Nakagawa, Kenji Miyamoto, Minoru Kasukawa, Masayuki Inoue, Tetsuji Morita
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Publication number: 20110100962Abstract: According to a metal joining method of the present invention, first and second dissimilar metals are joined together by interposing between the first and second metal materials a third metal material dissimilar to the first and second metal materials and causing eutectic melting at least either at an interface between the first and third metal materials or at an interface between the second and third metal materials.Type: ApplicationFiled: November 11, 2010Publication date: May 5, 2011Inventors: Kojiro KOBAYASHI, Akio HIROSE, Shigeyuki NAKAGAWA, Kenji MIYAMOTO, Minoru KASUKAWA, Masayuki INOUE, Tetsuji MORITA
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Publication number: 20110056920Abstract: According to a metal joining method of the present invention, first and second dissimilar metals are joined together by interposing between the first and second metal materials a third metal material dissimilar to the first and second metal materials and causing eutectic melting at least either at an interface between the first and third metal materials or at an interface between the second and third metal materials.Type: ApplicationFiled: November 11, 2010Publication date: March 10, 2011Inventors: Kojiro Kobayashi, Akio Hirose, Shigeyuki Nakagawa, Kenji Miyamoto, Minoru Kasukawa, Masayuki Inoue, Tetsuji Morita
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Patent number: 7850059Abstract: According to a metal joining method of the present invention, first and second dissimilar metals are joined together by interposing between the first and second metal materials a third metal material dissimilar to the first and second metal materials and causing eutectic melting at least either at an interface between the first and third metal materials or at an interface between the second and third metal materials.Type: GrantFiled: December 13, 2005Date of Patent: December 14, 2010Assignees: Nissan Motor Co., Ltd.Inventors: Kojiro Kobayashi, Akio Hirose, Shigeyuki Nakagawa, Kenji Miyamoto, Minoru Kasukawa, Masayuki Inoue, Tetsuji Morita
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Publication number: 20080316361Abstract: A picture signal processing device includes an A/D conversion unit configured to convert an input analog picture signal into a digital picture signal; an automatic image correction unit configured to correct the digital picture signal from the A/D conversion unit; a narrowing-down unit configured to narrow down possible formats of the analog picture signal based on horizontal and vertical signal frequencies of the analog picture signal, horizontal and vertical synchronizing signal polarities and vertical line count; and an identification unit configured to identify the format of the input analog picture signal from among a plurality of narrowed-down candidate signal formats.Type: ApplicationFiled: June 20, 2008Publication date: December 25, 2008Inventors: Yoshinori ITO, Tetsuji MORITA, Kosuke YAMAMOTO
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Patent number: 7171988Abstract: A tubing including an overlap portion formed by the first and second circumferential end portions overlapping and joined with each other, and a fluid leakage preventing member for preventing pressurized fluid from leaking from the tubing upon the tubing being subjected to hydrostatic forming. An apparatus and method for hydrostatic forming of a tubing having an overlap portion. The apparatus includes a die and a nozzle having fluid leakage preventing means for preventing the pressurized fluid supplied into the tubing from leaking from a clearance between the first and second circumferential end portions of the overlap portion of the tubing at the longitudinal end portions of the tubing.Type: GrantFiled: December 2, 2004Date of Patent: February 6, 2007Assignee: Nissan Motor Co., Ltd.Inventors: Fumihiko Gejima, Hiroshi Sakurai, Kenji Kanamori, Tetsuji Morita, Sadao Yanagida, Masayuki Inoue
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Publication number: 20060150387Abstract: According to a metal joining method of the present invention, first and second dissimilar metals are joined together by interposing between the first and second metal materials a third metal material dissimilar to the first and second metal materials and causing eutectic melting at least either at an interface between the first and third metal materials or at an interface between the second and third metal materials.Type: ApplicationFiled: December 13, 2005Publication date: July 13, 2006Inventors: Kojiro Kobayashi, Akio Hirose, Shigeyuki Nakagawa, Kenji Miyamoto, Minoru Kasukawa, Masayuki Inoue, Tetsuji Morita
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Publication number: 20050121096Abstract: A tubing including an overlap portion formed by the first and second circumferential end portions overlapping and joined with each other, and a fluid leakage preventing member for preventing pressurized fluid from leaking from the tubing upon the tubing being subjected to hydrostatic forming. An apparatus and method for hydrostatic forming of a tubing having an overlap portion. The apparatus includes a die and a nozzle having fluid leakage preventing means for preventing the pressurized fluid supplied into the tubing from leaking from a clearance between the first and second circumferential end portions of the overlap portion of the tubing at the longitudinal end portions of the tubing.Type: ApplicationFiled: December 2, 2004Publication date: June 9, 2005Inventors: Fumihiko Gejima, Hiroshi Sakurai, Kenji Kanamori, Tetsuji Morita, Sadao Yanagida, Masayuki Inoue
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Patent number: 5502565Abstract: This invention provides a method and apparatus for accurately measuring the flying height of a magnetic head at high speed by using a white lamp and a color CCD camera. The invention entails substituting tentative refraction coefficients and extinction coefficients representative of colors in theoretical equations expressing the relationship between interference light intensity and flying height, thereby optimizing the parameters by non-linear regression. The flying height of a magnetic head is measured by using the coefficient thus determined. Also, this invention enables determination of flying height at very high speed through effecting the above optimization in consideration of constants associated with the shape of the head under consideration, and adapting the above theoretical equations.Type: GrantFiled: August 19, 1994Date of Patent: March 26, 1996Assignee: International Business Machines CorporationInventors: Tadashi Fukuzawa, Teiji Hisano, Tetsuji Morita, Koichi Ikarugi
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Patent number: 5475488Abstract: A high-sensitivity apparatus having simple constitution that measures the flying height of a magnetic head. Light emitted from a white light source 25 is directed to the gap between a disk 23 and a head 21, and subjected to multiple reflection between the disk 23 and the head 21. Reflected light from an opaque object, which may be either the disk 23 or the head 21, is divided into at least three components having respective wavelength regions which are directed to different photodetectors 35, 36, and 37 for the respective wavelength regions. An estimation device 38 estimates the flying height of the head according to the least-square method from the outputs of the photodetectors using functions prepared in advance for the respective wavelength regions, and correlates the disk-head gap and the reflected light intensities detected by the respective photodetectors. Real-time calculation according to the least-square method is performed by means of a table look-up technique or a tracking servo technique.Type: GrantFiled: November 5, 1993Date of Patent: December 12, 1995Inventors: Tadashi Fukuzawa, Teiji Hisano, Kohichi Ikarugi, Tetsuji Morita, Kohki Noda