Patents by Inventor Katsuyoshi Takeuchi
Katsuyoshi Takeuchi 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: 10605627Abstract: A transmission winding portion having a positive-polarity loop and a negative-polarity loop alternately formed so as to partially overlap with each other in the extending direction of a scale, arrangement of the positive-polarity loop and the negative-polarity loop being adjusted such that the positive-polarity loop and the negative-polarity loop on both sides with respect to the intermediate position in the longitudinal direction of the transmission winding portion are inverted; a first reception winding that covers the transmission winding portion in the width direction of the scale, that has a length, corresponding to the cycle of the cycle pattern of the transmission winding portion, and that is formed into a rectangular pattern; a second reception winding having a shape symmetrical to the first reception winding with respect to the intermediate position in the longitudinal direction of the transmission winding portion.Type: GrantFiled: April 13, 2016Date of Patent: March 31, 2020Assignee: MITSUBISHI HEAVY INDUSTRIES MACHINE TOOL CO., LTD.Inventors: Koh Ishii, Katsuyoshi Takeuchi
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Publication number: 20190041238Abstract: The present invention is provided with: a transmission winding portion having a positive-polarity loop and a negative-polarity loop alternately formed so as to partially overlap with each other in the extending direction of a scale, arrangement of the positive-polarity loop and the negative-polarity loop being adjusted such that the positive-polarity loop and the negative-polarity loop on both sides with respect to the intermediate position in the longitudinal direction of the transmission winding portion are inverted; a first reception winding that covers the transmission winding portion in the width direction of the scale, that has a length, corresponding to the cycle of the cycle pattern of the transmission winding portion, and that is formed into a rectangular pattern; a second reception winding having a shape symmetrical to the first reception winding with respect to the intermediate position in the longitudinal direction of the transmission winding portion.Type: ApplicationFiled: April 13, 2016Publication date: February 7, 2019Applicant: MITSUBISHI HEAVY INDUSTRIES MACHINE TOOL CO., LTD.Inventors: Koh ISHII, Katsuyoshi TAKEUCHI
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Patent number: 10120396Abstract: The purpose of the present invention is to further improve the accuracy of position control of a machine apparatus. A control device for a machine apparatus is equipped with: a speed control unit for calculating a torque command for the machine apparatus; a friction estimation unit for calculating an estimated value of the friction force produced by the machine apparatus; an amplitude phase adjustment unit for calculating a corrected friction value by multiplying the proportional gain by the friction force estimated by the friction estimation unit; and a correction unit for correcting the torque command by using the corrected friction value calculated by the amplitude phase adjustment unit. Furthermore, the proportional gain is determined on the basis of the gain properties of the transfer function of the machine apparatus from the position command to the position deviation.Type: GrantFiled: February 20, 2015Date of Patent: November 6, 2018Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Keisuke Mochizuki, Ichiro Awaya, Katsuyoshi Takeuchi, Hirohisa Kuramoto
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Patent number: 9709423Abstract: Provided are an electromagnetic-induction-type position detector which can be small sized and in which interference errors do not occur, and a detection method. The present invention has: a stator having first and second main patterns and first and second sub-patterns; and a rotor having a main pattern part and a sub-pattern part, in which adjacent comb-shaped electrodes of the main pattern part and the sub-pattern part are connected to form a single loop; and when an excitation electric current is supplied to the first and second main patterns, an excitation voltage excited in the main pattern part is detected in the first and second sub-patterns via the sub-pattern part, and when an excitation electric current is supplied to the first and second sub-patterns, the excitation voltage excited in the sub-pattern part is detected in the first and second main patterns via the main pattern part.Type: GrantFiled: October 16, 2014Date of Patent: July 18, 2017Assignee: MITSUBISHI HEAVY INDUSTRIES MACHINE TOOL CO., LTD.Inventor: Katsuyoshi Takeuchi
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Publication number: 20160363939Abstract: The purpose of the present invention is to further improve the accuracy of position control of a machine apparatus. A control device for a machine apparatus is equipped with: a speed control unit for calculating a torque command for the machine apparatus; a friction estimation unit for calculating an estimated value of the friction force produced by the machine apparatus; an amplitude phase adjustment unit for calculating a corrected friction value by multiplying the proportional gain by the friction force estimated by the friction estimation unit; and a correction unit for correcting the torque command by using the corrected friction value calculated by the amplitude phase adjustment unit. Furthermore, the proportional gain is determined on the basis of the gain properties of the transfer function of the machine apparatus from the position command to the position deviation.Type: ApplicationFiled: February 20, 2015Publication date: December 15, 2016Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Keisuke MOCHIZUKI, Ichiro AWAYA, Katsuyoshi TAKEUCHI, Hirohisa KURAMOTO
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Publication number: 20160216134Abstract: Provided are an electromagnetic-induction-type position detector which can be small sized and in which interference errors do not occur, and a detection method. The present invention has: a stator having first and second main patterns and first and second sub-patterns; and a rotor having a main pattern part and a sub-pattern part, in which adjacent comb-shaped electrodes of the main pattern part and the sub-pattern part are connected to form a single loop; and when an excitation electric current is supplied to the first and second main patterns, an excitation voltage excited in the main pattern part is detected in the first and second sub-patterns via the sub-pattern part, and when an excitation electric current is supplied to the first and second sub-patterns, the excitation voltage excited in the sub-pattern part is detected in the first and second main patterns via the main pattern part.Type: ApplicationFiled: October 16, 2014Publication date: July 28, 2016Applicant: MITSUBISHI HEAVY INDUSTRIES MACHINE TOOL CO., LTD.Inventor: Katsuyoshi TAKEUCHI
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Publication number: 20150045940Abstract: A servo control device (20) includes a position feedback unit (21) that performs position feedback control for matching the position of a driven unit to the position command for each of X, Y, and Z axes and a speed feed forward unit (22) that performs speed feed forward control, which is for compensating a delay in the position control for the driven unit due to position feedback control, for each axis. The servo control device (20) changes the position loop gain for each axis to the same value set in advance when the speed feed forward control is OFF, and changes the position loop gain based on the position feedback control to the optimal gain corresponding to each axis when the speed feed forward control of the speed feed forward unit (22) is ON.Type: ApplicationFiled: February 5, 2013Publication date: February 12, 2015Inventors: Katsuyoshi Takeuchi, Hirohisa Kuramoto, Hideaki Yamamoto
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Publication number: 20150030405Abstract: A machine tool includes a machine tool main body, a ram which is supported with respect to the machine tool main body in a movable manner, a main shaft which is supported by the ram in a drivable and rotatable manner, an attachment which can be attached to and detached from a tip end portion of the ram and includes a driving shaft rotated according to rotation of the main shaft and a tool provided on the driving shaft, and a NC device which performs a numerical control based on machining data, and performs machining of a processing target. The control method of a machine tool includes a step of decreasing at least one of a ram overhang amount or a feeding amount when stress applied to the attachment is larger than allowable stress of the attachment based on a machining condition including a diameter, a depth of cut, and a feeding amount of the tool, and information including the ram overhang amount, a shape of the attachment, and a material of the processing target.Type: ApplicationFiled: March 21, 2013Publication date: January 29, 2015Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Megumu Tsuruta, Naotaka Komatsu, Katsuyoshi Takeuchi, Takashi Shibutani, Satoshi Furutate
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Patent number: 8723472Abstract: Improved precision is realized in positioning control. Provided is a servo control device that is applied to a numerical control equipment provided with a screw-feeding section that converts rotational movement of a motor to linear movement, a driven section that is linearly moved by the screw-feeding section, and a support member by which the screw-feeding section and the driven section are supported and that controls the motor so as to match a position of the driven section to a positioning instruction, including a support-member-reaction-force compensating section 311 that compensates for vibrations of the driven section due to a vibrational reaction force of the support member, wherein a transfer function provided in the support-member-reaction-force compensating section 311 includes a stiffness term for the driven section.Type: GrantFiled: June 10, 2010Date of Patent: May 13, 2014Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Katsuyoshi Takeuchi, Hideaki Yamamoto
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Publication number: 20110285340Abstract: Improved precision is realized in positioning control. Provided is a servo control device that is applied to a numerical control equipment provided with a screw-feeding section that converts rotational movement of a motor to linear movement, a driven section that is linearly moved by the screw-feeding section, and a support member by which the screw-feeding section and the driven section are supported and that controls the motor so as to match a position of the driven section to a positioning instruction, including a support-member-reaction-force compensating section 311 that compensates for vibrations of the driven section due to a vibrational reaction force of the support member, wherein a transfer function provided in the support-member-reaction-force compensating section 311 includes a stiffness term for the driven section.Type: ApplicationFiled: June 10, 2010Publication date: November 24, 2011Inventors: Katsuyoshi Takeuchi, Hideaki Yamamoto
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Patent number: 7654009Abstract: A rotary absolute value scale includes a rotor in which two rotor side coil patterns provided with different pitches are laminated, and a stator in which two stator side coil patterns provided with different pitches are also laminated. A linear absolute value scale includes a slider in which two slider side coil patterns provided with different pitches are laminated, and a scale in which two scale side coil patterns provided with different pitches are also laminated.Type: GrantFiled: February 22, 2008Date of Patent: February 2, 2010Assignee: Mitsubishi Heavy IndustriesInventors: Koh Ishii, Katsuyoshi Takeuchi
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Publication number: 20080223942Abstract: A rotary absolute value scale includes a rotor in which two rotor side coil patterns provided with different pitches are laminated, and a stator in which two stator side coil patterns provided with different pitches are also laminated. A linear absolute value scale includes a slider in which two slider side coil patterns provided with different pitches are laminated, and a scale in which two scale side coil patterns provided with different pitches are also laminated.Type: ApplicationFiled: February 22, 2008Publication date: September 18, 2008Applicant: Mitsubishi Heavy Industries, Ltd.Inventors: Koh Ishii, Katsuyoshi Takeuchi
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Patent number: 6962977Abstract: The invention provides a noxious organism-controlling agent effective to control pests that have acquired a resistance to conventional Bt agents, and which has activity on Coleoptera pests. Also, the invention provides a microbe, Bacillus thuringiensis serovar galleriae SDS502 strain, that produces a toxic protein. This toxic protein can serve as the active ingredient in a noxious organism-controlling composition. The invention provides a protein having pesticidal activity that is produced by the Bacillus thuringiensis serovar galleriae SDS502 strain, and a protein having an addition, deletion or substitution of a plurality of amino acids and having similar pesticidal activity. The invention also provides a DNA encoding protein having pesticidal activity, a microbe transformed with the DNA, and a plant transformed with the DNA and its seed.Type: GrantFiled: August 2, 2001Date of Patent: November 8, 2005Assignee: SDS Biotech K.K.Inventors: Shinichiro Asano, Satoshi Yamanaka, Katsuyoshi Takeuchi
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Publication number: 20030017967Abstract: Noxious organism-controlling agent of the present invention is effective to pests that have acquired a resistance to conventional Bt agents and has activity on Coleoptera pests of which only several kinds have been reported.Type: ApplicationFiled: April 3, 2002Publication date: January 23, 2003Inventors: Shinichiro Asano, Satoshi Yamanaka, Katsuyoshi Takeuchi
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Patent number: 5052513Abstract: In order to accomplish the aforementioned and other objects, a resin muffler, according to the invention, is formed of a heat-resistantive synthetic resin having a property of visco-elastic plasticity in a predetermined temperature range. In the visco-elastic temperature range, the motion of the molecular chain segment of the material resin comes to be relaxed to exhibit noise creative pulsating energy dissipation owing to emission as heat energy. Since the resin muffler thus absorbs noise creative energy by dissipation at around the visco-elastic temperature range and transform the energy into the heat energy which may be emitted by radiation.Type: GrantFiled: November 25, 1987Date of Patent: October 1, 1991Assignees: Showa Denko Kabushiki Kaisha, Yamato Kogyo Company, LimitedInventors: Hideo Yoshikawa, Katsuyoshi Takeuchi, Masami Shimada, Yoshiharu Awaji, Takashi Ikeda, Shunsaku Mitsuno
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Patent number: D841586Type: GrantFiled: March 14, 2016Date of Patent: February 26, 2019Assignee: MITSUBISHI HEAVY INDUSTRIES MACHINES TOOL CO., LTD.Inventors: Katsuyoshi Takeuchi, Kazunari Izawa, Koh Ishii