Patents by Inventor Sueyoshi Mizuno
Sueyoshi Mizuno 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: 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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Patent number: 8890347Abstract: A wind power generation system 10 of an embodiment includes a rotor 40 having a hub 41 and blades 42, a nacelle 31 pivotally supporting the rotor 40, a tower 30 supporting the nacelle 31, an airflow generation device 60 provided in a leading edge of each of the blades 42 and having a first electrode 61 and a second electrode 62 which are separated via a dielectric, and a discharge power supply 65 capable of applying a voltage between the electrodes of the airflow generation device 60. Further, the system includes a measurement device detecting information related to at least one of output in the wind power generation system 10, torque in the rotor 40 and a rotation speed of the blades 42, and a control unit 110 controlling the discharge power supply 65 based on an output from the measurement device.Type: GrantFiled: May 2, 2012Date of Patent: November 18, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Motofumi Tanaka, Hisashi Matsuda, Kunihiko Wada, Hiroyuki Yasui, Shohei Goshima, Naohiko Shimura, Yutaka Ishiwata, Susumu Kinoshita, Tamon Ozaki, Sueyoshi Mizuno, Shinichi Noda, Toshiki Osako, Toshimasa Yamada
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Patent number: 8853896Abstract: A rotating electrical machine includes a stator and a rotor both accommodate in a frame, on which is mounted a control case to house a drive unit including an inverter. In the machine, the control case has a vibration suppression structure that suppresses vibration of the control case. The vibration suppression structure includes honeycombed ribs formed integrally with a wall surface of the control case.Type: GrantFiled: October 5, 2012Date of Patent: October 7, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Yoshio Morisaki, Sueyoshi Mizuno, Shinichi Noda
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Patent number: 8674537Abstract: A wind power generation system 10 of an embodiment includes a rotor 40 having blades 42, an airflow generation device 60 provided in a leading edge of each of the blades 42 and having a first electrode 61 and a second electrode 62 which are separated via a dielectric, a discharge power supply 65 applying a voltage between the electrodes of the airflow generation device 60, and a control unit 110 controlling the discharge power supply 65. The control unit 110 controls the voltage to perform pulse modulation so that the value of a relational expression fC/U is 0.1 or larger and 9 or smaller where f is a pulse modulation frequency of the voltage, C is a chord length of the blades 42, and U is a relative velocity combining a peripheral velocity of the blades 42 and a wind velocity, so as to generate plasma induced flow.Type: GrantFiled: March 13, 2012Date of Patent: March 18, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Motofumi Tanaka, Hisashi Matsuda, Kunihiko Wada, Hiroyuki Yasui, Shohei Goshima, Naohiko Shimura, Yutaka Ishiwata, Susumu Kinoshita, Tamon Ozaki, Sueyoshi Mizuno, Shinichi Noda
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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: 20130026866Abstract: A rotating electrical machine has a stator and a rotor both accommodated in a frame, on which is mounted a control case to house a drive unit including an inverter. In the machine, the control case has a vibration suppression structure that suppresses vibration of the control case or adjusts a natural vibration frequency of the control case.Type: ApplicationFiled: October 5, 2012Publication date: January 31, 2013Inventors: Yoshio Morisaki, Sueyoshi Mizuno, Shinichi Noda
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Publication number: 20120280501Abstract: A wind power generation system 10 of an embodiment includes a rotor 40 having a hub 41 and blades 42, a nacelle 31 pivotally supporting the rotor 40, a tower 30 supporting the nacelle 31, an airflow generation device 60 provided in a leading edge of each of the blades 42 and having a first electrode 61 and a second electrode 62 which are separated via a dielectric, and a discharge power supply 65 capable of applying a voltage between the electrodes of the airflow generation device 60. Further, the system includes a measurement device detecting information related to at least one of output in the wind power generation system 10, torque in the rotor 40 and a rotation speed of the blades 42, and a control unit 110 controlling the discharge power supply 65 based on an output from the measurement device.Type: ApplicationFiled: May 2, 2012Publication date: November 8, 2012Inventors: Motofumi Tanaka, Hisashi Matsuda, Kunihiko Wada, Hiroyuki Yasui, Shohei Goshima, Naohiko Shimura, Yutaka Ishiwata, Susumu Kinoshita, Tamon Ozaki, Sueyoshi Mizuno, Shinichi Noda, Toshiki Osako, Toshimasa Yamada
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Publication number: 20120280500Abstract: A wind power generation system 10 of an embodiment includes a rotor 40 having blades 42, an airflow generation device 60 provided in a leading edge of each of the blades 42 and having a first electrode 61 and a second electrode 62 which are separated via a dielectric, a discharge power supply 65 applying a voltage between the electrodes of the airflow generation device 60, and a control unit 110 controlling the discharge power supply 65. The control unit 110 controls the voltage to perform pulse modulation so that the value of a relational expression fC/U is 0.1 or larger and 9 or smaller where f is a pulse modulation frequency of the voltage, C is a chord length of the blades 42, and U is a relative velocity combining a peripheral velocity of the blades 42 and a wind velocity, so as to generate plasma induced flow.Type: ApplicationFiled: March 13, 2012Publication date: November 8, 2012Inventors: Motofumi TANAKA, Hisashi Matsuda, Kunihiko Wada, Hiroyuki Yasui, Shohei Goshima, Naohiko Shimura, Yutaka Ishiwata, Susumu Kinoshita, Tamon Ozaki, Sueyoshi Mizuno, Shinichi Noda
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Publication number: 20100116597Abstract: An elevator includes a car that ascends and descends in an elevation path, and at least one airflow generation device that is set on a surface of a top end part of at least one of upper and lower end parts of the car, the surface facing a platform of the elevation path, and suppresses a separation flow generated at the top end of the car during running, thereby to generate an airflow for rectifying an airflow flowing into a front side of the car.Type: ApplicationFiled: November 5, 2009Publication date: May 13, 2010Inventors: Hisashi MATSUDA, Fumio OOTOMO, Motofumi TANAKA, Kazuo HAYASHI, Shinichi NODA, Sueyoshi MIZUNO
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Publication number: 20040222048Abstract: An elevator system comprises an air supply fan and an air exhaust fan which changes atmospheric pressure in a car according to an ascending and descending process, and a controller which rotates the air supply fan and the air exhaust fan in a normal direction or a reverse direction according to the ascending and descending process to pressurize or depressurize an inside of the car.Type: ApplicationFiled: February 17, 2004Publication date: November 11, 2004Inventors: Sueyoshi Mizuno, Yoshiaki Fujita, Norihito Togashi
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Patent number: 5969531Abstract: The inspection apparatus for inspecting performance of a structure such as stator windings of an electric rotating machine of the invention comprises a probe including a measuring element, an arm unit and a cylinder face circumferential moving apparatus. The arm unit has an arm link section supporting the probe (mainly comprising a leading end link assembly and an arm posture keeping mechanism), an arm housing section (mainly comprising a guide rail) regarding driving of this arm link section, and an arm driving mechanism. The arm driving mechanism causes the leading end link assembly to project from the guide rail at an angle toward a measuring position side of the stator windings relative to the axial direction of the rotor unit, while causing the arm link section to travel along the guide rail. The arm posture keeping mechanism is provided with a link wire and a spring, and maintains a straight arm posture of the leading end link assembly after projection from the guide rail.Type: GrantFiled: March 5, 1997Date of Patent: October 19, 1999Assignee: Kabushiki Kaisha ToshibaInventors: Shin Murakami, Tadashi Munakata, Norihito Togashi, Satoshi Suzuki, Sueyoshi Mizuno, Yoshikata Kobayashi, Satoshi Irie, Masanori Sotodate, Katsune Zaitsu, Shinji Takahashi, Hideyuki Shimada
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Patent number: 5032775Abstract: A control apparatus for controlling a plane working robot comprise a running unit for running on a plane surface, a steering unit for steering the running unit in a predetermined direction, a working unit for performing predetermined plane working such as cleaning, and a detecting unit for detecting information about running direction and distance of the robot and an obstacle on the plane surface, thus permitting the working robot to take an optimum running path while avoiding an obstacle on the basis of sensor outputs from the detecting unit.Type: GrantFiled: June 5, 1990Date of Patent: July 16, 1991Assignee: Kabushiki Kaisha ToshibaInventors: Sueyoshi Mizuno, Yuuji Takiguchi, Tetsushi Koshiyama