Patents by Inventor Masaya Sakai
Masaya Sakai 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: 11973002Abstract: A composite substrate includes, in this order: a ceramic plate; a metal layer containing at least one selected from the group consisting of aluminum and an aluminum alloy; and a thermal sprayed layer containing at least one selected from the group consisting of copper and a copper alloy, and an intermetallic compound containing copper and aluminum as constituent elements is scattered between the metal layer and the thermal sprayed layer.Type: GrantFiled: November 12, 2020Date of Patent: April 30, 2024Assignee: Denka Company LimitedInventors: Atsushi Sakai, Masaya Yumiba, Kentaro Nakayama, Yoshitaka Taniguchi
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Patent number: 9800196Abstract: A control apparatus for an AC rotary machine includes voltage application units 3, 4 for applying voltages respectively to two sets of three-phase windings of AC rotary machine 1, control unit 5 that controls the voltage application units 3, 4, and fault detection units 6, 7 that output fault detection signals to control unit 5 varying in accordance with the ground short fault and the power short fault. When detecting, control unit 5 outputs a voltage command to faulty voltage application unit 3, 4 to set voltages of respective phases of the three-phase windings at a negative electrode side potential V? of DC power supply 2, and when detecting a power short fault, control unit 5 outputs a voltage command to set the voltages of the respective phases of the three-phase windings at a positive electrode side potential V+ of DC power supply 2.Type: GrantFiled: April 23, 2014Date of Patent: October 24, 2017Assignee: Mitsubishi Electric CorporationInventors: Tatsuya Mori, Isao Kezobo, Yoshihiko Kimpara, Masaya Sakai, Akira Furukawa, Yu Kawano, Rei Araki
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Publication number: 20160373050Abstract: A control apparatus for an AC rotary machine includes voltage application units 3, 4 for applying voltages respectively to two sets of three-phase windings of AC rotary machine 1, control unit 5 that controls the voltage application units 3, 4, and fault detection units 6, 7 that output fault detection signals to control unit 5 varying in accordance with the ground short fault and the power short fault. When detecting, control unit 5 outputs a voltage command to faulty voltage application unit 3, 4 to set voltages of respective phases of the three-phase windings at a negative electrode side potential V? of DC power supply 2, and when detecting a power short fault, control unit 5 outputs a voltage command to set the voltages of the respective phases of the three-phase windings at a positive electrode side potential V+ of DC power supply 2.Type: ApplicationFiled: April 23, 2014Publication date: December 22, 2016Applicant: Mitsubishi Electric CorporationInventors: Tatsuya MORI, Isao KEZOBO, Yoshihiko KIMPARA, Masaya SAKAI, Akira FURUKAWA, Yu KAWANO, Rei ARAKI
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Publication number: 20160275992Abstract: An information processing apparatus according to an embodiment includes an extraction unit, an analysis unit, and a display processing unit. The extraction unit detects switching between scenes in a video content and extracts images of the respective scenes from the video content. The analysis unit analyzes temporal transition of acoustic information contained in the video content. The display processing unit displays a list of the images of the respective scenes extracted by the extraction unit and an image indicating the temporal transition of acoustic information analyzed by the analysis unit on a display unit.Type: ApplicationFiled: February 10, 2016Publication date: September 22, 2016Applicant: YAHOO JAPAN CORPORATIONInventors: Masaya SAKAI, Masaki NOGUCHI, Naoaki YAMASHITA, Yasuaki HASHIMOTO, Shingo HOSHINO, Ryusuke ETCHU, Shigenori KAMATA, Mikiko HIRANO
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Patent number: 9114955Abstract: Provided is a control device for an elevator to be operated with a speed pattern thereof being changed based on a load of the elevator, in which a control parameter is automatically adjusted in a short period so that the capability of a drive device is appropriately exhibited regardless of the magnitudes of travel resistance and mechanical loss that varies for each elevator, and consequently the elevator is operated with high efficiency, the control device including: a traveling model used for calculating the speed command value of the elevator; and means for automatically adjusting a parameter of the traveling model based on travel data during a travel of the elevator when the elevator is installed and adjusted.Type: GrantFiled: December 8, 2010Date of Patent: August 25, 2015Assignee: MITSUBISHI ELECTRIC CORPORATIONInventor: Masaya Sakai
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Publication number: 20130018639Abstract: Provided is a control device for an elevator to be operated with a speed pattern thereof being changed based on a load of the elevator, in which a control parameter is automatically adjusted in a short period so that the capability of a drive device is appropriately exhibited regardless of the magnitudes of travel resistance and mechanical loss that varies for each elevator, and consequently the elevator is operated with high efficiency, the control device including: a traveling model used for calculating the speed command value of the elevator; and means for automatically adjusting a parameter of the traveling model based on travel data during a travel of the elevator when the elevator is installed and adjusted.Type: ApplicationFiled: December 8, 2010Publication date: January 17, 2013Applicant: MITSUBISHI ELECTRIC CORPORATIONInventor: Masaya Sakai
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Patent number: 7931128Abstract: In an elevator device, a drive unit has a drive sheave, a motor for rotating the drive sheave, and a motor driving portion for driving the motor. The motor driving portion is controlled by a control unit. When a car is running, the control unit monitors a load on at least one component within the drive unit, and generates a control command regarding a running speed of the car in accordance with a state of the load, and outputs the control command to the motor driving portion.Type: GrantFiled: July 25, 2006Date of Patent: April 26, 2011Assignee: Mitsubishi Electric CorporationInventors: Masaya Sakai, Takaharu Ueda
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Patent number: 7837012Abstract: The present invention provides an elevator controller including: a main control unit for controlling running of an elevator, in which the main control unit predictively calculates a continuous temperature state of a predetermined componential equipment of the elevator and performs an operation control of the elevator based on the predicted temperature state such that the componential equipment is not overloaded. Accordingly, a temperature rise in the componential equipment is suppressed, thereby enabling to prevent the elevator from becoming inoperable.Type: GrantFiled: September 29, 2003Date of Patent: November 23, 2010Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Masaya Sakai, Takaharu Ueda
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Patent number: 7823705Abstract: An elevator apparatus is equipped with an elevator component that is operated during operation of an elevator, a detector for measuring a change in a physical quantity other than temperature as to the elevator component, and a control device for controlling the operation of the elevator based on information from the detector. The elevator component is, for example, a hoisting machine for moving a car of the elevator. The hoisting machine has a motor, and a driving sheave that is rotated by the motor. The detector measures a strain of a frame of the motor as the physical quantity other than temperature. The control device determines based on the strain of the frame of the motor whether or not there is an abnormality in the operation of the elevator, and controls the operation of the elevator. It is therefore possible to determine easily and more reliably whether or not there is an abnormality in the operation of the elevator, without the need to directly measure the temperature of the motor (6).Type: GrantFiled: September 30, 2005Date of Patent: November 2, 2010Assignee: Mitsubishi Electric CorporationInventors: Takaharu Ueda, Masaya Sakai, Takashi Yumura
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Patent number: 7748502Abstract: In an elevator apparatus, a single car is raised and lowered by a plurality of hoisting machines. An elevator control device for controlling the hoisting machines generates speed commands separately for the hoisting machines. When a current value of one of the hoisting machines reaches a current set value, which is set in advance during acceleration of the car, the elevator control device applies the speed command for that one of the hoisting machines, whose current value has reached the current set value, to the other hoisting machine as well.Type: GrantFiled: April 13, 2006Date of Patent: July 6, 2010Assignee: Mitsubishi Electric CorporationInventors: Takaharu Ueda, Masunori Shibata, Masaya Sakai
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Publication number: 20090283367Abstract: In an elevator apparatus, a single car is raised and lowered by a plurality of hoisting machines. An elevator control device for controlling the hoisting machines generates speed commands separately for the hoisting machines. When a current value of one of the hoisting machines reaches a current set value, which is set in advance during acceleration of the car, the elevator control device applies the speed command for that one of the hoisting machines, whose current value has reached the current set value, to the other hoisting machine as well.Type: ApplicationFiled: April 13, 2006Publication date: November 19, 2009Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Takaharu Ueda, Masunori Shibata, Masaya Sakai
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Publication number: 20090236184Abstract: An elevator apparatus is equipped with an elevator component that is operated during operation of an elevator, a detector for measuring a change in a physical quantity other than temperature as to the elevator component, and a control device for controlling the operation of the elevator based on information from the detector. The elevator component is, for example, a hoisting machine for moving a car of the elevator. The hoisting machine has a motor, and a driving sheave that is rotated by the motor. The detector measures a strain of a frame of the motor as the physical quantity other than temperature. The control device determines based on the strain of the frame of the motor whether or not there is an abnormality in the operation of the elevator, and controls the operation of the elevator. It is therefore possible to determine easily and more reliably whether or not there is an abnormality in the operation of the elevator, without the need to directly measure the temperature of the motor (6).Type: ApplicationFiled: September 30, 2005Publication date: September 24, 2009Applicant: Mitsubishi Electric CorporationInventors: Takaharu Ueda, Masaya Sakai, Takashi Yumura
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Patent number: 7588125Abstract: An elevator control device that drives a cage in a high-efficient speed pattern without using a load detector such as a conventional scale device. The elevator control device includes: a current detector for detecting a current that is supplied to a motor from an inverter; a speed detector for detecting a rotation speed of the motor; a speed pattern generator for generating an elevator speed pattern; a motor speed control device for controlling the speed so that a speed detection value follows a speed command value of the speed pattern; and a motor current control device for controlling a current that is supplied to the motor with respect to the inverter by using a current detection value and the speed detection value on the basis of the speed command value.Type: GrantFiled: November 14, 2005Date of Patent: September 15, 2009Assignee: Mitsubishi Electric CorporationInventors: Takaharu Ueda, Masaya Sakai, Masunori Shibata
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Publication number: 20080315802Abstract: An elevator control device that drives a cage in a high-efficient speed pattern without using a load detector such as a conventional scale device. The elevator control device includes: a current detector for detecting a current that is supplied to a motor from an inverter; a speed detector for detecting a rotation speed of the motor; a speed pattern generator for generating an elevator speed pattern a motor speed control device for controlling the speed so that a speed detection value follows a speed command value of the speed pattern; and a motor current control device for controlling a current that is supplied to the motor with respect to the inverter by using a current detection value and the speed detection value on the basis of the speed command value.Type: ApplicationFiled: November 14, 2005Publication date: December 25, 2008Applicant: Mitsubishi Electric CorporationInventors: Takaharu Ueda, Masaya Sakai, Masunori Shibata
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Publication number: 20070284196Abstract: In an elevator device, a drive unit has a drive sheave, a motor for rotating the drive sheave, and a motor driving portion for driving the motor. The motor driving portion is controlled by a control unit. When a car is running, the control unit monitors a load on at least one component within the drive unit, and generates a control command regarding a running speed of the car in accordance with a state of the load, and outputs the control command to the motor driving portion.Type: ApplicationFiled: July 25, 2006Publication date: December 13, 2007Applicant: Mitsubishi Electric CorporationInventors: Masaya Sakai, Takaharu Ueda
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Publication number: 20070012521Abstract: The present invention provides an elevator controller including: a main control unit for controlling running of an elevator, in which the main control unit predictively calculates a continuous temperature state of a predetermined componential equipment of the elevator and performs an operation control of the elevator based on the predicted temperature state such that the componential equipment is not overloaded. Accordingly, a temperature rise in the componential equipment is suppressed, thereby enabling to prevent the elevator from becoming inoperable.Type: ApplicationFiled: September 29, 2003Publication date: January 18, 2007Applicant: MITSUBISHI DENKI KABUSHIKI KAISHAInventors: Masaya Sakai, Takaharu Ueda