Patents by Inventor Takeo Ito
Takeo Ito 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: 20240250298Abstract: A solid electrolyte that includes a lithium ion conductive material having a garnet-type structure, a lithium ion conductive material having a LISICON-type structure, and a compound containing Li and B.Type: ApplicationFiled: March 1, 2024Publication date: July 25, 2024Inventors: Ryohei TAKANO, Makoto YOSHIOKA, Akisuke ITO, Takeo ISHIKURA
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Patent number: 9404047Abstract: A start-up method for a hydrocarbon synthesis reaction apparatus, comprising: an initial slurry-loading step in which the slurry is loaded into the reactor at the initial stage of the Fischer-Tropsch synthesis reaction at a lower loading rate than that applied to the reactor in a steady-state operation; and a CO conversion ratio-increasing step in which the liquid level of the slurry in the reactor is raised by adding to the slurry the hydrocarbons synthesized at the early stage of the Fischer-Tropsch synthesis reaction so that the CO conversion ratio is increased in proportion to a rise in the liquid level of the slurry in the reactor.Type: GrantFiled: November 6, 2013Date of Patent: August 2, 2016Assignees: Japan Oil, Gas and Metals National Corporation, INPEX CORPORATION, JX Nippon Oil & Energy Corporation, Japan Petroleum Exploration Co., Ltd., COSMO OIL CO., LTD., NIPPON STEEL & SUMIKIN ENGINEERING CO., LTD.Inventors: Takeo Ito, Atsushi Murata, Eiichi Yamada, Yuzuru Kato, Yasuhiro Onishi
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Patent number: 9287808Abstract: There is obtained a configuration capable of rapidly decelerating a motor even if a failure occurs in the communication between a controller and a motor control unit in a motor controller in which a speed command is input from the controller to the motor control unit. A motor controller 1 is provided with a main controller 2, and a motor control unit 3 configured to be communicable with the main controller 2 to drive a motor M according to a torque command output from the main controller 2. The motor control unit 3 includes a speed control unit 31 for outputting a torque command, so as to decelerate the motor M, if any failure occurs in communication with the main controller 2 while the motor M is being driven.Type: GrantFiled: May 29, 2014Date of Patent: March 15, 2016Assignees: SINFONIA TECHNOLOGY CO., LTD., KOBELCO CONSTRUCTION MACHINERY CO., LTD.Inventors: Takeo Ito, Hideaki Moriya, Takeshi Tomizaki, Akira Nakazumi, Yusuke Kamimura
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Patent number: 9276512Abstract: There is provided a motor controller capable of suppressing the rotation of a motor at the time of discharging an electric accumulator, and a construction machine provided with the motor controller. A motor controller 10 is provided with a current controller 1 for controlling an electric current supplied from an electric accumulator E to a motor M, and a rotation detector 2 for detecting the rotation of the motor M. The current controller 1 supplies only a d-axis current to the motor M according to a discharge command. If the rotation of the motor M is detected by the rotation detector 2 at the time of discharging the electric accumulator E, the current controller 1 controls the d-axis current so as to suppress the rotation of the motor M.Type: GrantFiled: May 29, 2014Date of Patent: March 1, 2016Assignees: SINFONIA TECHNOLOGY CO., LTD., KOBELCO CONSTRUCTION MACHINERY CO., LTD.Inventors: Takeshi Tomizaki, Yuichi Hamaguchi, Takeo Ito, Akira Nakazumi, Yusuke Kamimura
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Publication number: 20150267123Abstract: A start-up method for a hydrocarbon synthesis reaction apparatus, comprising: an initial slurry-loading step in which the slurry is loaded into the reactor at the initial stage of the Fischer-Tropsch synthesis reaction at a lower loading rate than that applied to the reactor in a steady-state operation; and a CO conversion ratio-increasing step in which the liquid level of the slurry in the reactor is raised by adding to the slurry the hydrocarbons synthesized at the early stage of the Fischer-Tropsch synthesis reaction so that the CO conversion ratio is increased in proportion to a rise in the liquid level of the slurry in the reactor.Type: ApplicationFiled: November 6, 2013Publication date: September 24, 2015Inventors: Takeo Ito, Atsushi Murata, Eiichi Yamada, Yuzuru Kato, Yasuhiro Onishi
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Patent number: 9075418Abstract: A damping device includes a calculator calculating a pseudo vibration to cancel a source vibration transmitted from a vibration source to a position to be damped, using an adaptive control algorithm. The canceling vibration is generated according to the pseudo vibration. A vibration detector detects an error vibration remaining at the position. The adaptive control algorithm is adapted by learning to reduce the error vibration. A frequency recognizer recognizes a frequency of the source vibration from a signal related to the vibration source. The frequency of the vibration is used to determine a frequency of the pseudo vibration. A phase difference identifier identifies a phase difference between the error vibration and the canceling vibration according to the pseudo vibration, and a frequency corrector corrects, according to the phase difference, the frequency of the vibration to eliminate the phase difference.Type: GrantFiled: May 17, 2012Date of Patent: July 7, 2015Assignee: SINFONIA TECHNOLOGY CO., LTD.Inventors: Takeshi Tomizaki, Hideaki Moriya, Takeo Ito, Yasushi Muragishi
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Patent number: 8912737Abstract: A linear actuator driving device is provided. The linear actuator driving device includes an electromagnetic driving unit which makes a moving element reciprocate in response to a driving command and an offset correcting unit which corrects the driving command to carry out offset energization to make the center of reciprocation of the moving element be moved in the direction in which deviation between the center of reciprocation of the moving element and the center of the movement possible range is eliminated. The offset correcting unit is configured such that the amplitude information is acquired and, with respect to the amplitude value corresponding to the acquired amplitude information, if the movable amplitude is in a movable area insufficient condition, correction of the driving command is performed and, on the other hand, if the movable amplitude is not in the movable area insufficient condition, correction of the driving command is released.Type: GrantFiled: July 1, 2011Date of Patent: December 16, 2014Assignee: Sinfonia Technology Co., Ltd.Inventors: Hideaki Moriya, Takenori Motoori, Takeo Ito
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Publication number: 20140354197Abstract: There is obtained a configuration capable of rapidly decelerating a motor even if a failure occurs in the communication between a controller and a motor control unit in a motor controller in which a speed command is input from the controller to the motor control unit. A motor controller 1 is provided with a main controller 2, and a motor control unit 3 configured to be communicable with the main controller 2 to drive a motor M according to a torque command output from the main controller 2. The motor control unit 3 includes a speed control unit 31 for outputting a torque command, so as to decelerate the motor M, if any failure occurs in communication with the main controller 2 while the motor M is being driven.Type: ApplicationFiled: May 29, 2014Publication date: December 4, 2014Applicants: SINFONIA TECHNOLOGY CO., LTD., KOBELCO CONSTRUCTION MACHINERY CO., LTD.Inventors: Takeo Ito, Hideaki Moriya, Takeshi Tomizaki, Akira Nakazumi, Yusuke Kamimura
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Publication number: 20140354205Abstract: There is provided a motor controller capable of suppressing the rotation of a motor at the time of discharging an electric accumulator, and a construction machine provided with the motor controller. A motor controller 10 is provided with a current controller 1 for controlling an electric current supplied from an electric accumulator E to a motor M, and a rotation detector 2 for detecting the rotation of the motor M. The current controller 1 supplies only a d-axis current to the motor M according to a discharge command. If the rotation of the motor M is detected by the rotation detector 2 at the time of discharging the electric accumulator E, the current controller 1 controls the d-axis current so as to suppress the rotation of the motor M.Type: ApplicationFiled: May 29, 2014Publication date: December 4, 2014Applicants: SINFONIA TECHNOLOGY CO., LTD., KOBELCO CONSTRUCTION MACHINERY CO., LTD.Inventors: Takeshi Tomizaki, Yuichi Hamaguchi, Takeo Ito, Akira Nakazumi, Yusuke Kamimura
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Patent number: 8560129Abstract: [Object] To predetermine a target vibration level and keep vibration generated at a position at which vibration is to be controlled equal to or smaller than a target vibration level.Type: GrantFiled: May 13, 2009Date of Patent: October 15, 2013Assignee: Sinfonia Technology Co., Ltd.Inventors: Hideaki Moriya, Yushi Sato, Takeo Ito, Katsuyoshi Nakano, Yasushi Muragishi
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Patent number: 8471502Abstract: A vibration damping apparatus including reference wave production section that produces a reference wave; a fundamental order adaptive algorithm block that calculates fundamental order adaptive filter factors from a vibration detection signal and the reference wave and produces a fundamental order vibration damping current instruction; an amplitude detection section that calculates a peak current value of the fundamental order vibration damping current instruction; and a fundamental order current excess detection section that derives a fundamental order current upper limit value from the fundamental frequency to produce a fundamental order current upper limit excess signal that is output to the fundamental order adaptive algorithm block, which revises the fundamental order adaptive filter factors in a direction in which the vibration damping current instruction is limited within a range.Type: GrantFiled: June 26, 2012Date of Patent: June 25, 2013Assignee: Sinfonia Technology Co., Ltd.Inventors: Hideaki Moriya, Takeshi Tomizaki, Takeo Ito, Yasushi Muragishi, Takayoshi Fujii
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Publication number: 20130106319Abstract: A linear actuator driving device is provided. The linear actuator driving device includes an electromagnetic driving unit which makes a moving element reciprocate in response to a driving command and an offset correcting unit which corrects the driving command to carry out offset energization to make the center of reciprocation of the moving element be moved in the direction in which deviation between the center of reciprocation of the moving element and the center of the movement possible range is eliminated. The offset correcting unit is configured such that the amplitude information is acquired and, with respect to the amplitude value corresponding to the acquired amplitude information, if the movable amplitude is in a movable area insufficient condition, correction of the driving command is performed and, on the other hand, if the movable amplitude is not in the movable area insufficient condition, correction of the driving command is released.Type: ApplicationFiled: July 1, 2011Publication date: May 2, 2013Applicant: SINFONIA TECHNOLOGY CO., LTD.Inventors: Hideaki Moriya, Takenori Motoori, Takeo Ito
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Patent number: 8381579Abstract: The present invention provides a vibration damping device which can enhance a vibration damping effect even in a case where a vibration damping target position and a vibration damping force generation position are different from each other.Type: GrantFiled: May 13, 2009Date of Patent: February 26, 2013Assignee: Sinfonia Technology Co., Ltd.Inventors: Yushi Sato, Hideaki Moriya, Takeo Ito, Takayoshi Fujii, Takashi Fukunaga, Katsuyoshi Nakano, Hiroshi Nakagawa, Hidetoshi Katada, Takeshi Tomizaki, Takashi Onoue, Yasushi Muragishi
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Publication number: 20120293094Abstract: A vibration damping apparatus including reference wave production section that produces a reference wave; a fundamental order adaptive algorithm block that calculates fundamental order adaptive filter factors from a vibration detection signal and the reference wave and produces a fundamental order vibration damping current instruction; an amplitude detection section that calculates a peak current value of the fundamental order vibration damping current instruction; and a fundamental order current excess detection section that derives a fundamental order current upper limit value from the fundamental frequency to produce a fundamental order current upper limit excess signal that is output to the fundamental order adaptive algorithm block, which revises the fundamental order adaptive filter factors in a direction in which the vibration damping current instruction is limited within a range.Type: ApplicationFiled: June 26, 2012Publication date: November 22, 2012Applicant: SINFONIA TECHNOLOGY CO., LTD.Inventors: Hideaki MORIYA, Takeshi TOMIZAKI, Takeo ITO, Yasushi MURAGISHI, Takayoshi FUJII
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Patent number: 8300097Abstract: A screen display section and a control section are formed as separate units, enabling the sections to be separated from each other and integrally assembled together through a rigid bracket. Further, the screen display section and the control section respectively independently have connector receiving spaces. By this construction, the screen display section and the control section can be separated from each other and integrated with each other when required, and even in bad weather, water drops do not enter into the insides of the screen display section and the control section and into the connector receiving spaces, which enables safe and easy separation operation and integration operation.Type: GrantFiled: May 23, 2006Date of Patent: October 30, 2012Assignee: Komatsu Ltd.Inventor: Takeo Ito
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Publication number: 20120226414Abstract: A damping device includes a calculator calculating a pseudo vibration to cancel a source vibration transmitted from a vibration source to a position to be damped, using an adaptive control algorithm. The canceling vibration is generated according to the pseudo vibration. A vibration detector detects an error vibration remaining at the position. The adaptive control algorithm is adapted by learning to reduce the error vibration. A frequency recognizer recognizes a frequency of the source vibration from a signal related to the vibration source. The frequency of the vibration is used to determine a frequency of the pseudo vibration. A phase difference identifier identifies a phase difference between the error vibration and the canceling vibration according to the pseudo vibration, and a frequency corrector corrects, according to the phase difference, the frequency of the vibration to eliminate the phase difference.Type: ApplicationFiled: May 17, 2012Publication date: September 6, 2012Applicant: SINFONIA TECHNOLOGY CO., LTD.Inventors: Takeshi TOMIZAKI, Hideaki MORIYA, Takeo ITO, Yasushi MURAGISHI
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Patent number: 7969032Abstract: An apparatus comprising: a first input that receives a first rotational speed information of a windmill mechanically generated by a mechanical rotation detection unit; a second input that receives a second rotational speed information of the windmill based on an alternating current output of a generator attached to the windmill; and a controller configured to compare the first and second rotational speed information, to determine whether a difference between the first and second rotational speed information is greater than a predetermined value and to execute a predetermined anomaly processing in response to the difference being greater than the predetermined value.Type: GrantFiled: September 17, 2010Date of Patent: June 28, 2011Assignee: Sinfonia Technology Co., Ltd.Inventors: Tsutomu Shinya, Sachiko Shinya, legal representative, Masashi Kutsuna, Takeo Ito, Masami Morita, Hiroki Kataoka, Hiroaki Nishiono
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Publication number: 20110066292Abstract: [Object] To predetermine a target vibration level and keep vibration generated at a position at which vibration is to be controlled equal to or smaller than a target vibration level.Type: ApplicationFiled: May 13, 2009Publication date: March 17, 2011Applicant: SINFONIA TECHNOLOGY CO., LTD.Inventors: Hideaki Moriya, Yushi Sato, Takeo Ito, Katsuyoshi Nakano, Yasushi Muragishi
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Patent number: D659343Type: GrantFiled: June 21, 2011Date of Patent: May 8, 2012Assignee: Komatsu Ltd.Inventors: Tomohiro Saitou, Takeo Ito, Masahiko Hosaka
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Patent number: D659939Type: GrantFiled: June 21, 2011Date of Patent: May 15, 2012Assignee: Komatsu Ltd.Inventors: Tomohiro Saitou, Takeo Ito, Masahiko Hosaka