Patents by Inventor Hitoshi Oyori
Hitoshi Oyori 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).
-
Publication number: 20150060601Abstract: An aircraft electric actuator drive apparatus has an electric actuator and a secondary power supply device. The electric actuator is driven using electric power from a main power unit provided in an aircraft. The secondary power supply device can temporarily supply electric power to the electric actuator while electric power from the main power unit is applied to the electric actuator.Type: ApplicationFiled: August 27, 2014Publication date: March 5, 2015Applicants: IHI AEROSPACE CO., LTD., NABTESCO CORPORATIONInventors: Shingo NAKAGAWA, Yoichi YAMAMOTO, Hitoshi OYORI
-
Patent number: 8884590Abstract: An electricity generation device includes a permanent-magnet electric generator with three or more phase windings each having an output terminal and connected to a neutral point, and bidirectional semiconductor switching circuits capable of interrupting connections between the respective phase windings and the neutral point. Each switching circuit allows current to flow in both directions. A gate signal generation circuit outputs to one of the switching circuits during a period including the time at which the AC voltage excited in the corresponding phase winding turns from positive to negative and during a period including the time at which the AC voltage excited in the corresponding phase winding turns from negative to positive. A startup gate signal output circuit outputs a startup gate signal to all of the bidirectional semiconductor switching circuits when the permanent-magnet electric generator is to be started.Type: GrantFiled: May 31, 2012Date of Patent: November 11, 2014Assignees: IHI Aerospace Co., Ltd., Sinfonia Technology Co., Ltd.Inventors: Hitoshi Oyori, Yukio Shimomura
-
Patent number: 8866427Abstract: When it is determined that the number of times that motor rotation-indicative quantity has been detected has exceeded a measurement interval, a feedback speed value is calculated from a motor rotation-indicative quantity detected immediately before, a motor rotation-indicative quantity detected immediately before the last time a measurement interval determination means determined that the number of times had exceeded the measurement interval, and time that has elapsed since the last time the measurement interval determination means determined that the number of times had exceeded the measurement interval, and the measurement interval having a length calculated from a greater one between the calculated feedback speed value and a speed command value is set for the measurement interval determination means to refer to.Type: GrantFiled: March 30, 2012Date of Patent: October 21, 2014Assignees: IHI Aerospace Co., Ltd., Sinfonia Technology Co., Ltd.Inventors: Hitoshi Oyori, Masaaki Monte
-
Publication number: 20140139152Abstract: To bring an actuator driving motor having a malfunction such as failure to a stop in a shorter time without employing a mechanical braking system. The present invention is an electric actuator driver, including: a power supply; an actuator driving motor (11A, 11B) to be supplied with power from the power supply to drive an actuator (B1); a motor braking circuit (C) to apply a regenerative brake on the actuator driving motor (11A, 11B); a malfunction occurrence determining means (D1) to determine whether there is a malfunction in a necessary component; and a regenerative braking means (D3) to apply the regenerative brake on the actuator driving motor (11A, 11B) by means of the motor braking circuit (C).Type: ApplicationFiled: April 5, 2012Publication date: May 22, 2014Applicants: SINFONIA TECHNOLOGY CO., LTD., IHI AEROSPACE CO., LTD.Inventors: Hitoshi Oyori, Masaya Wakita, Yukio Shimomura
-
Publication number: 20140097771Abstract: The present invention aims to respond a transient high instantaneous current that flows during acceleration of an electric actuator as well as to reduce the size and weight. The present invention is an electric actuator driver, including: an electric actuator (10); a motor generator (50) to drive the electric actuator (10); and a motor generator driving means (C8) to rotate the motor generator (50) at a rotation speed with which the motor generator (50) supplies a high instantaneous current that flows during acceleration/deceleration the electric actuator (10).Type: ApplicationFiled: April 5, 2012Publication date: April 10, 2014Applicants: SINFONIA TECHNOLOGY CO., LTD., IHI AEROSPACE CO., LTD.Inventors: Hitoshi Oyori, Masaya Wakita, Yukio Shimomura
-
Publication number: 20130287594Abstract: A fuel supply device according to the present invention comprises a first fuel pump for forcing fuel from a fuel tank to a fuel passage, a first electric motor for driving the first fuel pump, a second fuel pump for forcing fuel from the fuel tank to the fuel passage, a second electric motor for driving the second fuel pump, a supply flow rate sensor for detecting flow rate in the supply passage, and a control device for controlling the flow rate in the supply passage to follow a desired value thereof, by regulating rotational speeds of the first and second electric motors depending on a difference between the desired value and a detected value of flow rate in the supply passage.Type: ApplicationFiled: April 25, 2013Publication date: October 31, 2013Applicant: IHI AEROSPACE CO., LTD.Inventors: Hitoshi Oyori, Noriko Morioka
-
Publication number: 20120306462Abstract: An electricity generation device includes a permanent-magnet electric generator with three or more phase windings each having an output terminal and connected to a neutral point, and bidirectional semiconductor switching circuits capable of interrupting connections between the respective phase windings and the neutral point. Each switching circuit allows current to flow in both directions. A gate signal generation circuit outputs to one of the switching circuits during a period including the time at which the AC voltage excited in the corresponding phase winding turns from positive to negative and during a period including the time at which the AC voltage excited in the corresponding phase winding turns from negative to positive. A startup gate signal output circuit outputs a startup gate signal to all of the bidirectional semiconductor switching circuits when the permanent-magnet electric generator is to be started.Type: ApplicationFiled: May 31, 2012Publication date: December 6, 2012Applicants: Sinfonia Technology Co., Ltd., IHI Aerospace Co., Ltd.Inventors: Hitoshi Oyori, Yukio Shimomura
-
Publication number: 20120256577Abstract: When it is determined that the number of times that motor rotation-indicative quantity has been detected has exceeded a measurement interval, a feedback speed value is calculated from a motor rotation-indicative quantity detected immediately before, a motor rotation-indicative quantity detected immediately before the last time a measurement interval determination means determined that the number of times had exceeded the measurement interval, and time that has elapsed since the last time the measurement interval determination means determined that the number of times had exceeded the measurement interval, and the measurement interval having a length calculated from a greater one between the calculated feedback speed value and a speed command value is set for the measurement interval determination means to refer to.Type: ApplicationFiled: March 30, 2012Publication date: October 11, 2012Applicants: Sinfonia Technology Co., Ltd., IHI Aerospace Co., Ltd.Inventors: Hitoshi Oyori, Masaaki Monte
-
Publication number: 20120256572Abstract: When a fault of any one of phases is detected by a fault detector, each of the phases is checked for fault on the basis of fault detection information input to a controller, and the phases of normal phase currents which have been judged to be not faulty by a faulty phase discriminator are varied such that a current vector obtained by decomposing the normal phase currents into orthogonal X- and Y-axis components to derive resultant currents and then combining the resultant currents follows a nearly circular locus.Type: ApplicationFiled: March 30, 2012Publication date: October 11, 2012Applicants: Sinfonia Technology Co., Ltd., IHI Aerospace Co., Ltd.Inventors: Hitoshi Oyori, Hiroshi Saito
-
Patent number: 6759818Abstract: To realize structure simplification and reduction in manufacturing cost without lowering power transmission efficiency and reliability. The present invention includes a first motor 5 and a second motor 6, and a lead 2 of a ball screw 12 is disposed coaxially with a motor rotary shaft 5a on a first motor 5 side and a nut 3 of the ball screw 12 is disposed coaxially with a motor rotary shaft 6a on a second motor 6 side so that the first motor 5 and the second motor 6 are connected to each other via the ball screw 12.Type: GrantFiled: May 31, 2002Date of Patent: July 6, 2004Assignee: IHI Aerospace Co., Ltd.Inventor: Hitoshi Oyori
-
Publication number: 20020195978Abstract: To realize structure simplification and reduction in manufacturing cost without lowering power transmission efficiency and reliability. The present invention includes a first motor 5 and a second motor 6, and a lead 2 of a ball screw 12 is disposed coaxially with a motor rotary shaft 5a on a first motor 5 side and a nut 3 of the ball screw 12 is disposed coaxially with a motor rotary shaft 6a on a second motor 6 side so that the first motor 5 and the second motor 6 are connected to each other via the ball screw 12.Type: ApplicationFiled: May 31, 2002Publication date: December 26, 2002Applicant: IHI AEROSPACE CO., LTD.Inventor: Hitoshi Oyori