Patents by Inventor Yuichi Sekine
Yuichi Sekine 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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Publication number: 20240011890Abstract: In a stress corrosion cracking evaluation method for a steam turbine, a sample having a high sensitivity is housed in a sample box of the steam turbine, and a sample breakage time is acquired. Then, based on the sample breakage time, a breakage time of the steam turbine is estimated.Type: ApplicationFiled: December 9, 2020Publication date: January 11, 2024Inventors: Yuichi SEKINE, Kunio ASAI, Yuta NAKATSUCHI, Yuichi IWAMOTO, Shingo TAMURA
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Publication number: 20230003627Abstract: Provided is a measuring device for measuring the hardness of a rotor blade groove. This measuring device comprises: a hardness meter for measuring hardness; an actuator that presses the hardness meter to an object to be measured; a camera for capturing an image of a measurement range in the object to be measured by the hardness meter; a movement mechanism for moving the hardness meter and the camera to a desired position within the measurement range; and a fixing member for fixing the movement mechanism to the object to be measured.Type: ApplicationFiled: September 14, 2022Publication date: January 5, 2023Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Yasutaka Fuke, Hirone Komatsu, Yuichi Sekine, Hideo Yoda, Juichi Kodera, Eiji Saito, Shinichi Kobayashi
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Publication number: 20220315185Abstract: A fluid machine includes: a shaft portion extending in an axis direction; a shroud provided to surround the shaft portion and having a diameter decreasing from an upstream side on one side in the axis direction toward a downstream side on another side in the axis direction, a flow path being formed between the shroud and the shaft portion and having a flow path cross-sectional area decreasing toward the downstream side; a propeller rotatably provided about an axis between the shaft portion and the shroud and configured to pump a fluid from the upstream side toward the downstream side; and a motor provided to correspond to the propeller, the motor including a rotor having a ring-like shape and being fixed to an outer circumference portion of the propeller and accommodated in the shroud and a stator having a ring-like shape surrounding the rotor and being fixed in the shroud, in which the motor is a conical motor in which diameters of the rotor and the stator decrease from the upstream side toward the downstreaType: ApplicationFiled: March 24, 2022Publication date: October 6, 2022Inventors: Shigeki SENOO, Shinichi ISOBE, Wataru YAMADA, Takehiko NISHIDA, Takuyoshi YAMADA, Kazuki HOSONO, Yoshitomo NODA, Hiroki TAKEDA, Yuichi SEKINE
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Publication number: 20220315184Abstract: A fluid machine includes: a shaft portion extending in an axis direction; a shroud provided to surround the shaft portion, and forming a flow path between the shroud and the shaft portion, the flow path having one side in the axis direction serving as an upstream side and another side in the axis direction serving as a downstream side; a first propeller provided rotatably around the axis between the shaft portion and the shroud; a second propeller provided rotatably around the axis between the shaft portion and the shroud on the downstream side of the first propeller; an outer periphery driving motor provided in the shroud and configured to rotationally drive the first propeller; and an inner periphery driving motor provided in the shaft portion and configured to rotationally drive the second propeller in a direction opposite to the rotational direction of the first propeller.Type: ApplicationFiled: March 23, 2022Publication date: October 6, 2022Inventors: Shigeki SENOO, Shinichi ISOBE, Wataru YAMADA, Takehiko NISHIDA, Takuyoshi YAMADA, Kazuki HOSONO, Yoshitomo NODA, Hiroki TAKEDA, Yuichi SEKINE
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Publication number: 20220315183Abstract: A fluid machine includes: a shaft portion; a shroud having an inside surface with a diameter decreasing from an upstream side toward a downstream side, a flow path being formed between the shroud and the shaft portion and having a flow path cross-sectional area decreasing toward the downstream side; a propeller rotatably provided about an axis between the shaft portion and the shroud and configured to pump a fluid from the upstream side toward the downstream side; and a motor provided to correspond to the propeller and including a rotor having a ring-like shape fixed to an outer circumference portion of the propeller and accommodated in the shroud and a stator having a ring-like shape surrounding the rotor and fixed in the shroud, in which a plurality of the propellers are provided to be spaced apart in the axis direction, the motors are provided in an identical number to the propellers to correspond to each of the propellers, and of a plurality of motors, the rotor of the motor positioned more on the downstrType: ApplicationFiled: March 22, 2022Publication date: October 6, 2022Inventors: Shigeki SENOO, Shinichi ISOBE, Wataru YAMADA, Takehiko NISHIDA, Takuyoshi YAMADA, Kazuki HOSONO, Yoshitomo NODA, Hiroki TAKEDA, Yuichi SEKINE
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Publication number: 20220315181Abstract: A fluid machine includes: a shaft portion extending in an axis direction; a shroud provided to surround the shaft portion, and forming a flow path between the shroud and the shaft portion, the flow path having one side in the axis direction serving as an upstream side and another side in the axis direction serving as a downstream side; a propeller provided rotatably around the axis between the shaft portion and the shroud; a motor provided in the shroud and configured to rotationally drive the propeller; and a bearing apparatus provided only to the shaft portion, out of the shroud and the shaft portion, and rotationally supporting the propeller.Type: ApplicationFiled: March 21, 2022Publication date: October 6, 2022Inventors: Shigeki SENOO, Shinichi ISOBE, Wataru YAMADA, Takehiko NISHIDA, Takuyoshi YAMADA, Kazuki HOSONO, Yoshitomo NODA, Takuzo SHIGIHARA, Hiroki TAKEDA, Yuichi SEKINE
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Patent number: 11456647Abstract: A rotating electrical machine of the present invention evaluates a relative displacement of members and improves reliability further even when two or more members operate or move. A rotating electrical machine of the present invention comprises a stator and a rotor disposed on an inner side of the stator with a predetermined gap. The stator includes vibration measuring devices, each of the vibration measuring devices placed on each of at least two members included in the stator, the members having different displacements or phases with each other. The rotating electrical machine includes a device that acquires a relative displacement of one of the members included in the stator by evaluating a difference between displacements or phases measured by the vibration measuring devices and that evaluates a lifetime of the one of the members included in the stator based on the relative displacement.Type: GrantFiled: October 25, 2018Date of Patent: September 27, 2022Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Yuichi Sekine, Keiji Suzuki, Keisuke Kumano, Tamami Kurihara, Yuichi Takahashi
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Patent number: 11060422Abstract: A water quality monitoring system is disclosed including a sampling pipe that acquires steam that passes a bleed pipe that bleeds steam from a low pressure turbine to which steam of low pressure is supplied from among steam turbines, a steam inlet tank into which the steam acquired by the sampling pipe flows, a water quality measurement apparatus that measures the water quality of condensed water condensed from the steam flowed in the steam inlet tank, and a water quality diagnosis apparatus that diagnoses the water quality of the condensed water using a result of the measurement of the water quality measurement apparatus. The steam inlet tank is installed at a location higher than that of the water quality measurement apparatus such that the water quality measurement apparatus measures the water quality of the condensed water boosted to the atmospheric pressure utilizing the head difference.Type: GrantFiled: February 12, 2019Date of Patent: July 13, 2021Assignee: Mitsubishi Power, Ltd.Inventors: Yuichi Sekine, Kunio Asai, Yuichi Iwamoto, Shingo Tamura
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Publication number: 20190301308Abstract: A water quality monitoring system is disclosed including a sampling pipe that acquires steam that passes a bleed pipe that bleeds steam from a low pressure turbine to which steam of low pressure is supplied from among steam turbines, a steam inlet tank into which the steam acquired by the sampling pipe flows, a water quality measurement apparatus that measures the water quality of condensed water condensed from the steam flowed in the steam inlet tank, and a water quality diagnosis apparatus that diagnoses the water quality of the condensed water using a result of the measurement of the water quality measurement apparatus. The steam inlet tank is installed at a location higher than that of the water quality measurement apparatus such that the water quality measurement apparatus measures the water quality of the condensed water boosted to the atmospheric pressure utilizing the head difference.Type: ApplicationFiled: February 12, 2019Publication date: October 3, 2019Inventors: Yuichi SEKINE, Kunio ASAI, Yuichi IWAMOTO, Shingo TAMURA
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Publication number: 20190131853Abstract: A rotating electrical machine of the present invention evaluates a relative displacement of members and improves reliability further even when two or more members operate or move. A rotating electrical machine of the present invention comprises a stator and a rotor disposed on an inner side of the stator with a predetermined gap. The stator includes vibration measuring devices, each of the vibration measuring devices placed on each of at least two members included in the stator, the members having different displacements or phases with each other. The rotating electrical machine includes a device that acquires a relative displacement of one of the members included in the stator by evaluating a difference between displacements or phases measured by the vibration measuring devices and that evaluates a lifetime of the one of the members included in the stator based on the relative displacement.Type: ApplicationFiled: October 25, 2018Publication date: May 2, 2019Applicant: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Yuichi SEKINE, Keiji SUZUKI, Keisuke KUMANO, Tamami KURIHARA, Yuichi TAKAHASHI
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Publication number: 20060046834Abstract: A pachi-slot gaming machine is disclosed having a two-dimensional code displayed on a two-dimensional code display area at the end of a game. A camera of a mobile phone captures the two-dimensional code for transmission to a server. The two-dimensional code, transmitted to the server, is converted by a conversion program for the two-dimensional code into gaming information to be transmitted back to the mobile phone. Further, gaming information, acquired by the mobile phone, is able to be returned to the pachi-slot gaming machine as the two-dimensional code via an image capture device of the pachi-slot gaming machine, thereby enabling alteration of gaming information as needed.Type: ApplicationFiled: August 25, 2005Publication date: March 2, 2006Applicant: Aruze Corp.Inventor: Yuichi Sekine
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Publication number: 20060025222Abstract: A gaming machine is disclosed having a lottery device for performing the lottery to determine whether to afford a premium to a player, and a code information display device displaying code information which is coded based on coding lottery outcome data related to an outcome of the lotteries so that an image capture device captures the code information from an outside of the gaming machine.Type: ApplicationFiled: July 25, 2005Publication date: February 2, 2006Applicant: Aruze Corp.Inventor: Yuichi Sekine