Patents by Inventor Toshio Hirano
Toshio Hirano 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: 11320489Abstract: According to the embodiment, a field winding interlayer short-circuit detection apparatus comprises: a field winding resistance calculator to calculate, for a field winding of a rotating electrical machine, a field winding resistance calculated value from a detected value of a field winding current and a detected value of a field winding voltage; a determiner to determine presence or absence of an interlayer short-circuit in the field winding by using a comparison result between the field winding resistance calculated value and the reference resistance value.Type: GrantFiled: July 27, 2020Date of Patent: May 3, 2022Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Toshio Hirano, Yoshihiro Taniyama, Masafumi Fujita, Koji Ando, Yoshinori Torii
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Publication number: 20210033674Abstract: According to the embodiment, a field winding interlayer short-circuit detection apparatus comprises: a field winding resistance calculator to calculate, for a field winding of a rotating electrical machine, a field winding resistance calculated value from a detected value of a field winding current and a detected value of a field winding voltage; a determiner to determine presence or absence of an interlayer short-circuit in the field winding by using a comparison result between the field winding resistance calculated value and the reference resistance value.Type: ApplicationFiled: July 27, 2020Publication date: February 4, 2021Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Toshio HIRANO, Yoshihiro TANIYAMA, Masafumi FUJITA, Koji ANDO, Yoshinori TORII
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Patent number: 10895323Abstract: In the shaft sealing device according to one embodiment, a seal ring includes a machine-interior-side seal ring member, and a machine-exterior-side seal ring member. A ring gap is left between the machine-interior-side seal ring member and the machine-exterior-side seal ring member. A seal gap is left between an inner peripheral surface of the machine-interior-side seal ring member and an outer peripheral surface of the rotary shaft and between an inner peripheral surface of the machine-exterior-side seal ring member and the outer peripheral surface of the rotary shaft. The inner peripheral surface of the machine-interior-side seal ring member is a flat surface that generally follows along the outer peripheral surface of the rotary shaft, and a groove extending along a direction of rotation of the rotary shaft is formed in the inner peripheral surface of the machine-exterior-side seal ring member.Type: GrantFiled: December 21, 2018Date of Patent: January 19, 2021Assignees: KABUSHIKI KAISHA TOSHIBA, Toshiba Energy Systems & Solutions CorporationInventors: Toshio Hirano, Takeshi Kanasaki, Kazunori Ikeda, Hideki Chiba, Kenji Yoshimizu
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Patent number: 10845792Abstract: In one embodiment, a failure diagnosis apparatus includes a simulation module configured to simulate a target device to output virtual measured data obtained when the target device is in at least any one of one or more failure modes. The apparatus further includes a measured data obtaining module configured to obtain measured data that is measured from the target device. The apparatus further includes a failure mode identifying module configured to identify a failure mode of the target device based on the virtual measured data and the measured data.Type: GrantFiled: February 28, 2018Date of Patent: November 24, 2020Assignees: Kabushiki Kaisha Toshiba, Toshiba Energy Systems & Solutions CorporationInventors: Toshio Hirano, Yoshihiro Taniyama, Masayuki Ichimonji
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Publication number: 20190195364Abstract: In the shaft sealing device according to one embodiment, a seal ring includes a machine-interior-side seal ring member, and a machine-exterior-side seal ring member. A ring gap is left between the machine-interior-side seal ring member and the machine-exterior-side seal ring member. A seal gap is left between an inner peripheral surface of the machine-interior-side seal ring member and an outer peripheral surface of the rotary shaft and between an inner peripheral surface of the machine-exterior-side seal ring member and the outer peripheral surface of the rotary shaft. The inner peripheral surface of the machine-interior-side seal ring member is a flat surface that generally follows along the outer peripheral surface of the rotary shaft, and a groove extending along a direction of rotation of the rotary shaft is formed in the inner peripheral surface of the machine-exterior-side seal ring member.Type: ApplicationFiled: December 21, 2018Publication date: June 27, 2019Applicants: KABUSHIKI KAISHA TOSHIBA, Toshiba Energy Systems & Solutions CorporationInventors: Toshio HIRANO, Takeshi Kanasaki, Kazunori Ikeda, Hideki Chiba, Kenji Yoshimizu
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Publication number: 20180276322Abstract: In one embodiment, a failure diagnosis apparatus includes a simulation module configured to simulate a target device to output virtual measured data obtained when the target device is in at least any one of one or more failure modes. The apparatus further includes a measured data obtaining module configured to obtain measured data that is measured from the target device. The apparatus further includes a failure mode identifying module configured to identify a failure mode of the target device based on the virtual measured data and the measured data.Type: ApplicationFiled: February 28, 2018Publication date: September 27, 2018Applicants: Kabushiki Kaisha Toshiba, Toshiba Energy Systems & Solutions CorporationInventors: Toshio HIRANO, Yoshihiro TANIYAMA, Masayuki ICHIMONJI
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Patent number: 9777587Abstract: A sealing device for a turbine has a sealing member provided in a gap between a rotor and a stator arranged to surround the rotor, and a fluid path provided within the stator, to introduce, into the stator, a cooling medium used to cool stationary blades extending radially inward from the stator, and to flow the cooling medium at least to an upstream side of the sealing member.Type: GrantFiled: March 4, 2013Date of Patent: October 3, 2017Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Yuki Mimura, Akihiro Onoda, Tomohiko Tsukuda, Naoki Shibukawa, Toshio Hirano, Iwataro Sato, Kazutaka Tsuruta
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Patent number: 9732627Abstract: According to an embodiment, a rotor blade cover section is integrated with the rotor blades at leading ends thereof. A plurality of sealing fins is disposed at the rotor blade cover section, the sealing fins forming a predetermined clearance relative to an inner peripheral portion of the nozzle outer ring. An annular solid particle trapping space is disposed at the inner peripheral portion of the nozzle outer ring, the solid particle trapping space communicating with an inlet of a steam leak and trapping solid particles that flow in with steam. In the sealing structure, the nozzle outer ring has a through hole through which the solid particles are to be discharged from the solid particle trapping space toward a downstream stage of the steam turbine.Type: GrantFiled: July 31, 2013Date of Patent: August 15, 2017Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Kenichi Okuno, Yoshifumi Iwasaki, Yoriharu Murata, Toshio Hirano, Itaru Murakami, Shinichiro Ohashi
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Patent number: 9337709Abstract: According to one embodiment, there is provided an axial gap type permanent magnet electric rotating apparatus including a first and second rotor. All a magnetic-pole directions of a permanent magnets of the first and second rotor are the same. A portion between two permanent magnets along a circumferential direction of each rotor is made of a magnetic material having substantially the same size as that of the permanent magnet such that axial-direction surfaces are the same between the permanent magnets on two sides in the circumferential direction. Between the first rotor and the second rotor, a magnetic flux flows along an axial direction while making a loop and passes through an armature.Type: GrantFiled: July 7, 2014Date of Patent: May 10, 2016Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Yutaka Hashiba, Norio Takahashi, Makoto Matsushita, Masanori Arata, Toshio Hirano, Takaaki Hirose
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Patent number: 9166455Abstract: According to one embodiment, a rotating electrical machine has a vibrating-element. The vibrating-element has spring bars and circular members which cover spring bars while a part is connected to spring bars. The spring bars are connected to first stator core connection portions, which are formed so as to be spaced out in a circumferential direction from each other at two locations on a side surface of the stator core. The stator frame is connected by the second stator core connection portions, which are formed by two locations which are different from the first stator core connection portions, of the stator core. The second stator core connection portions contain a position adjacent to a node portion of a circular mode of vibration of the stator core, in which antinodes and nodes of vibration alternately appear in the circumferential direction as the vibrating-element is attached to the stator core.Type: GrantFiled: April 28, 2011Date of Patent: October 20, 2015Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Masayuki Ichimonji, Toshio Hirano, Daisuke Murata, Hitoshi Katayama
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Patent number: 9057682Abstract: According to the embodiment, there is provided a blade vibration measuring apparatus, having, a contactless displacement sensor which outputs a displacement measurement signal as measuring a displacement of a turbine moving blade in a rotation axis direction, a blade top position identifying device which outputs a blade top position identification signal to identify a top position based on a distance between the contactless displacement sensor and the top position of the turbine moving blade as receiving the displacement measurement signal output from the contactless displacement sensor, and a blade vibration calculating device which calculates vibration amplitude and a vibration frequency of the turbine moving blade based on temporal variation of the distance between the contactless displacement sensor and the top position of the turbine moving blade as receiving the blade top position identification signal output from the blade top position identifying device.Type: GrantFiled: September 13, 2012Date of Patent: June 16, 2015Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Kohichi Nakayama, Kenji Osaki, Hisashi Matsuda, Hitoshi Sakakida, Toshio Hirano, Toshiaki Hirate, Sueyoshi Mizuno, Ikuo Saito
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Publication number: 20150015108Abstract: According to one embodiment, there is provided an axial gap type permanent magnet electric rotating apparatus including a first and second rotor. All a magnetic-pole directions of a permanent magnets of the first and second rotor are the same. A portion between two permanent magnets along a circumferential direction of each rotor is made of a magnetic material having substantially the same size as that of the permanent magnet such that axial-direction surfaces are the same between the permanent magnets on two sides in the circumferential direction. Between the first rotor and the second rotor, a magnetic flux flows along an axial direction while making a loop and passes through an armature.Type: ApplicationFiled: July 7, 2014Publication date: January 15, 2015Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Yutaka Hashiba, Norio Takahashi, Makoto Matsushita, Masanori Arata, Toshio Hirano, Takaaki Hirose
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Publication number: 20140037431Abstract: According to an embodiment, a rotor blade cover section is integrated with the rotor blades at leading ends thereof. A plurality of sealing fins is disposed at the rotor blade cover section, the sealing fins forming a predetermined clearance relative to an inner peripheral portion of the nozzle outer ring. An annular solid particle trapping space is disposed at the inner peripheral portion of the nozzle outer ring, the solid particle trapping space communicating with an inlet of a steam leak and trapping solid particles that flow in with steam. In the sealing structure, the nozzle outer ring has a through hole through which the solid particles are to be discharged from the solid particle trapping space toward a downstream stage of the steam turbine.Type: ApplicationFiled: July 31, 2013Publication date: February 6, 2014Applicant: Kabushiki Kaisha ToshibaInventors: Kenichi OKUNO, Yoshifumi Iwasaki, Yoriharu Murata, Toshio Hirano, Itaru Murakami, Shinichiro Ohashi
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Publication number: 20140020359Abstract: A sealing device for a turbine has a sealing member provided in a gap between a rotor and a stator arranged to surround the rotor, and a fluid path provided within the stator, to introduce, into the stator, a cooling medium used to cool stationary blades extending radially inward from the stator, and to flow the cooling medium at least to an upstream side of the sealing member.Type: ApplicationFiled: March 4, 2013Publication date: January 23, 2014Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Yuki MIMURA, Akihiro ONODA, Tomohiko TSUKUDA, Naoki SHIBUKAWA, Toshio HIRANO, Iwataro SATO, Kazutaka TSURUTA
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Publication number: 20130247671Abstract: According to the embodiment, there is provided a blade vibration measuring apparatus, having, a contactless displacement 5 sensor which outputs a displacement measurement signal as measuring a displacement of a turbine moving blade in a rotation axis direction, a blade top position identifying device which outputs a blade top position identification signal to identify a top position based on a distance between the contactless displacement sensor 10 and the top position of the turbine moving blade as receiving the displacement measurement signal output from the contactless displacement sensor, and a blade vibration calculating device which calculates vibration amplitude and a vibration frequency of the turbine moving blade based on temporal variation of the distance 15 between the contactless displacement sensor and the top position of the turbine moving blade as receiving the blade top position identification signal output from the blade top position identifying device.Type: ApplicationFiled: September 13, 2012Publication date: September 26, 2013Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Kohichi Nakayama, Kenji Osaki, Hisashi Matsuda, Hitoshi Sakakida, Toshio Hirano, Toshiaki Hirate, Sueyoshi Mizuno, Ikuo Saito
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Publication number: 20130236473Abstract: A major object of the present invention is to provide a novel therapeutic or prophylactic agent for at least one disease or symptom selected from the group consisting of autoimmune diseases, inflammatory diseases, allergic diseases, and symptoms accompanying organ transplants; the therapeutic or prophylactic agent artificially controls the activity of IL-6 amplifier, thus controlling immune reactions in living organisms. Another object of the present invention is to provide an immunosuppressant, an inflammatory cytokine production inhibitor, and an IL-6 amplifier inhibitor. The compound that inhibits expression of the function of a protein belonging to ErbB1 pathway provided as means for achieving the object is capable of suppressing the activity of IL-6 amplifier, thereby reducing production of inflammatory cytokine such as IL-6.Type: ApplicationFiled: September 14, 2011Publication date: September 12, 2013Applicant: OSAKA UNIVERSITYInventors: Toshio Hirano, Masaaki Murakami
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Publication number: 20130028731Abstract: In a tilting pad journal bearing device including a plurality of arc-shaped pads 31, 32, . . . , 36 which are incorporated in a bearing inner ring 4 swingably in a circumferential direction of a journal 2, a load applied to each of the pads 31, 32, and 36 disposed in a lower half portion of the bearing inner ring 4 has anisotropy.Type: ApplicationFiled: July 24, 2012Publication date: January 31, 2013Inventors: Yuki MIMURA, Hitoshi SAKAKIDA, Toshio HIRANO, Kazunori IKEDA, Kenichi KASE, Kenichi IMAI
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Publication number: 20110266895Abstract: According to one embodiment, a rotating electrical machine has a vibrating-element. The vibrating-element has spring bars and circular members which cover spring bars while a part is connected to spring bars. The spring bars are connected to first stator core connection portions, which are formed so as to be spaced out in a circumferential direction from each other at two locations on a side surface of the stator core. The stator frame is connected by the second stator core connection portions, which are formed by two locations which are different from the first stator core connection portions, of the stator core. The second stator core connection portions contain a position adjacent to a node portion of a circular mode of vibration of the stator core, in which antinodes and nodes of vibration alternately appear in the circumferential direction as the vibrating-element is attached to the stator core.Type: ApplicationFiled: April 28, 2011Publication date: November 3, 2011Inventors: Masayuki ICHIMONJI, Toshio Hirano, Daisuke Murata, Hitoshi Katayama
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Publication number: 20090203749Abstract: To provide an agent capable of controlling the degranulation reaction and/or cytokine production of mast cell and the like. The present invention provides an agent for controlling a degranulation reaction and an agent for controlling a cytokine production, comprising a substance capable of controlling an intracellular zinc ion concentration, particularly, a zinc ion, a zinc ion chelator, an agent for controlling the expression and/or function of a zinc ion-requiring protein, or an agent for controlling the expression and/or function of a zinc ion transporter, as an active ingredient.Type: ApplicationFiled: January 31, 2006Publication date: August 13, 2009Applicant: RIKENInventors: Toshio Hirano, Keigo Nishida
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Publication number: 20090054316Abstract: The present invention provides an agent capable of controlling the function of antigen-presenting cell. The present invention provides an agent for controlling the function of antigen-presenting cell, comprising a substance capable of controlling an intracellular zinc ion concentration, particularly, a zinc ion, a zinc ion chelator, a substance for regulating the expression and/or function of a zinc ion-requiring protein, or a substance for regulating the expression and/or function of a zinc ion transporter, as an active ingredient.Type: ApplicationFiled: January 31, 2006Publication date: February 26, 2009Applicant: RIKENInventors: Toshio Hirano, Hidemitsu Kitamura