Patents by Inventor Tatsuhiko Nishida
Tatsuhiko Nishida 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: 20200231403Abstract: A filament winding device includes a supporter configured to support a liner in a rotatable manner; a yarn supplying unit configured to support bobbins; a helical winding head configured to helical-wind a fiber bundles onto the liner; and a standard thread guiding mechanism configured to form a standard thread guide channel that guides a standard thread from the bobbins to the liner, the standard thread being different from the fiber bundles and being connected to leading ends of the fiber bundles, the standard thread guiding mechanism including nozzles configured to blow the standard thread with a compressed gas, and guide tubes configured to guide the standard thread blown by the nozzles, and the nozzles and the guide tubes being disposed along a fiber bundle guide channel, and capable of taking up the standard thread from the standard thread guide channel to the fiber bundle guide channel.Type: ApplicationFiled: August 27, 2018Publication date: July 23, 2020Inventors: Motohiro Tanigawa, Daigoro Nakamura, Masatsugu Goyude, Tetsuya Matsuura, Hideo Shitamoto, Tatsuhiko Nishida, Tadashi Uozumi, Shu Ikezaki, Hirotaka Wada
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Patent number: 10532520Abstract: A helical winding unit includes a plurality of guides arrayed in a peripheral direction of a liner, and adapted to guide each of a plurality of fiber bundles supplied to the helical winding unit to the liner, and an opening member arranged downstream of the plurality of guides in a travelling direction of the fiber bundle, and including an inner peripheral surface for forming a hole, through which the plurality of fiber bundles are inserted from one side to the other side in the axial direction. A plurality of opening surfaces on which the plurality of fiber bundles travel while making contact are formed on the inner peripheral surface of the opening member, and a cross-sectional shape orthogonal to the axial direction of each opening surface is linear.Type: GrantFiled: August 3, 2018Date of Patent: January 14, 2020Assignee: Murata Machinery, Ltd.Inventors: Motohiro Tanigawa, Tadashi Uozumi, Tetsuya Matsuura, Hirotaka Wada, Tatsuhiko Nishida, Shu Ikezaki, Daigoro Nakamura
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Publication number: 20200001519Abstract: A filament winding apparatus includes a working area in which an operator performs an operation to at least one bobbin and/or liner on a conveyance path, an operation area in which a winder is driven, a buffer area between the working area and the operation area in a conveyance direction on the conveyance path, and an outside area that is neither the working area, the operation area, nor the buffer area being provided; and first fixed fences provided at borders between (i) the operation area and the buffer area and (ii) the working area and at the borders between (I) the operation area and the buffer area and (II) the outside area; and a first door provided at a border between the working area and the buffer area, and wherein the buffer area includes an accumulator portion capable of accumulating the at least one bobbin and the liner.Type: ApplicationFiled: March 15, 2018Publication date: January 2, 2020Inventors: Motohiro Tanigawa, Tadashi Uozumi, Tetsuya Matsuura, Hirotaka Wada, Tatsuhiko Nishida, Shu Ikezaki, Daigoro Nakamura
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Publication number: 20190039330Abstract: A helical winding unit includes a plurality of guides arrayed in a peripheral direction of a liner, and adapted to guide each of a plurality of fiber bundles supplied to the helical winding unit to the liner, and an opening member arranged downstream of the plurality of guides in a travelling direction of the fiber bundle, and including an inner peripheral surface for forming a hole, through which the plurality of fiber bundles are inserted from one side to the other side in the axial direction. A plurality of opening surfaces on which the plurality of fiber bundles travel while making contact are formed on the inner peripheral surface of the opening member, and a cross-sectional shape orthogonal to the axial direction of each opening surface is linear.Type: ApplicationFiled: August 3, 2018Publication date: February 7, 2019Inventors: Motohiro Tanigawa, Tadashi Uozumi, Tetsuya Matsuura, Hirotaka Wada, Tatsuhiko Nishida, Shu lkezaki, Daigoro Nakamura
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Patent number: 8941953Abstract: An actuator mounting section includes a plate member including a first plate and a second plate. The first plate is formed with an opening which accommodates an actuator element. The second plate includes a main body portion which overlaps the first plate and supporting portions which support opposite ends of the actuator element. A narrow portion narrower than the first plate is formed at a part of the main body portion of the second plate. A weld seal portion is formed by laser-welding the first plate and the second plate at the narrow portion. Adhesive is provided between the opposite ends of the actuator element and an inner surface of the opening of the first plate.Type: GrantFiled: August 26, 2014Date of Patent: January 27, 2015Assignee: NHK Spring Co., Ltd.Inventors: Tatsuhiko Nishida, Isamu Kuchiwaki
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Publication number: 20140368955Abstract: An actuator mounting section includes a plate member including a first plate and a second plate. The first plate is formed with an opening which accommodates an actuator element. The second plate includes a main body portion which overlaps the first plate and supporting portions which support opposite ends of the actuator element. A narrow portion narrower than the first plate is formed at a part of the main body portion of the second plate. A weld seal portion is formed by laser-welding the first plate and the second plate at the narrow portion. Adhesive is provided between the opposite ends of the actuator element and an inner surface of the opening of the first plate.Type: ApplicationFiled: August 26, 2014Publication date: December 18, 2014Inventors: Tatsuhiko NISHIDA, Isamu KUCHIWAKI
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Patent number: 8854770Abstract: An actuator mounting section comprises a plate member includes a first plate and a second plate. The first plate is formed with an opening which accommodates an actuator element. The second plate comprises a main body portion which overlaps the first plate and supporting portions which support opposite ends of the actuator element. A narrow portion narrower than the first plate is formed at a part of the main body portion of the second plate. A weld seal portion is formed by laser-welding the first plate and the second plate at the narrow portion. Adhesive is provided between the opposite ends of the actuator element and an inner surface of the opening of the first plate.Type: GrantFiled: April 8, 2013Date of Patent: October 7, 2014Assignee: NHK Spring Co., Ltd.Inventors: Tatsuhiko Nishida, Isamu Kuchiwaki
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Publication number: 20130301164Abstract: An actuator mounting section comprises a plate member includes a first plate and a second plate. The first plate is formed with an opening which accommodates an actuator element. The second plate comprises a main body portion which overlaps the first plate and supporting portions which support opposite ends of the actuator element. A narrow portion narrower than the first plate is formed at a part of the main body portion of the second plate. A weld seal portion is formed by laser-welding the first plate and the second plate at the narrow portion. Adhesive is provided between the opposite ends of the actuator element and an inner surface of the opening of the first plate.Type: ApplicationFiled: April 8, 2013Publication date: November 14, 2013Applicant: NHK SPRING CO., LTD.Inventors: Tatsuhiko NISHIDA, Isamu KUCHIWAKI
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Patent number: 8493070Abstract: The signal source generates a signal of a frequency higher than the vibration frequency of the slider of the hard disk drive, and supplies it to one end of the slider and the disk of the hard disk drive. The detector detects a signal output from the other end of the slider and the disk, and outputs a change in the capacitance between the slider and the disk as a voltage when the hard disk drive receives an impact.Type: GrantFiled: July 13, 2010Date of Patent: July 23, 2013Assignee: NHK Spring Co., Ltd.Inventors: Hiroshi Komiya, Tatsuhiko Nishida
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Patent number: 8456124Abstract: A parallel mechanism includes a base portion, a bracket to which an end effecter is attached, a plurality of actuators attached to the base portion, a plurality of arms through which the plurality of actuators and the bracket are coupled together in parallel, and a control device arranged to control the actuators. When the end effecter in a stopped state is moved to a target position, the control device is arranged to control the actuators so that a level of acceleration at which the end effecter is accelerated is higher than a level of deceleration at which the end effecter is decelerated.Type: GrantFiled: September 7, 2011Date of Patent: June 4, 2013Assignee: Murata Machinery, Ltd.Inventors: Tatsuhiko Nishida, Hideaki Nakanishi, Manabu Yamashita
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Patent number: 8132481Abstract: A parallel mechanism includes a base, actuators attached to the base, a plurality of arms coupled together in parallel, and a sensing device. Each of the arms has a first link, one end of which is coupled to the actuator, a second link through which the other end of the first link and a bracket are coupled together, a ball joint through which one end of the second link and the other end of the first link are swingably coupled together, and a ball joint through which the other end of the second link and the bracket are swingably coupled together. Each of the ball joints includes a ball stud including a ball-shaped head, a socket swingably holding the ball-shaped head of the ball stud, and a conductive member interposed between the ball-shaped head and the socket. The sensing device senses when at least one of the plurality of ball joints is loose, based on whether or not the ball stud and the socket are electrically continuous with one another.Type: GrantFiled: April 1, 2009Date of Patent: March 13, 2012Assignee: Murata Machinery, Ltd.Inventors: Tatsuhiko Nishida, Hideaki Nakanishi, Takashi Nakao, Manabu Yamashita
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Patent number: 8134324Abstract: A parallel mechanism includes a base portion, a bracket to which an end effecter is attached, a plurality of actuators attached to the base portion, a plurality of arms through which the plurality of actuators and the bracket are coupled together in parallel, and a control device arranged to control the actuators. When the end effecter in a stopped state is moved to a target position, the control device is arranged to control the actuators so that a level of acceleration at which the end effecter is accelerated is higher than a level of deceleration at which the end effecter is decelerated.Type: GrantFiled: May 19, 2009Date of Patent: March 13, 2012Assignee: Murata Machinery, Ltd.Inventors: Tatsuhiko Nishida, Hideaki Nakanishi, Manabu Yamashita
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Patent number: 8109171Abstract: An end effecter is positioned with high precision by stabilizing its attitude. Included are arms each having a pair of rods arranged in parallel, a bracket having the end effecter attached thereto and retained by the pair of rods, ball joints and each including a first joint element having a ball and displaceably connecting the bracket with the arm and a second joint element having a socket for retaining the ball, a connecting member for connecting the pair of parallel rods together and restricting rotation of the rods about an axis that is parallel to the longitudinal direction thereof, and a biasing member for providing a biasing force for retaining the ball in the socket.Type: GrantFiled: September 14, 2007Date of Patent: February 7, 2012Assignee: Murata Machinery Ltd.Inventors: Takashi Nakao, Tatsuhiko Nishida, Hideaki Nakanishi, Daigoro Nakamura
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Publication number: 20110316467Abstract: A parallel mechanism includes a base portion, a bracket to which an end effecter is attached, a plurality of actuators attached to the base portion, a plurality of arms through which the plurality of actuators and the bracket are coupled together in parallel, and a control device arranged to control the actuators. When the end effecter in a stopped state is moved to a target position, the control device is arranged to control the actuators so that a level of acceleration at which the end effecter is accelerated is higher than a level of deceleration at which the end effecter is decelerated.Type: ApplicationFiled: September 7, 2011Publication date: December 29, 2011Applicant: MURATA MACHINERY, LTD.Inventors: Tatsuhiko NISHIDA, Hideaki NAKANISHI, Manabu YAMASHITA
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Publication number: 20110019521Abstract: The signal source generates a signal of a frequency higher than the vibration frequency of the slider of the hard disk drive, and supplies it to one end of the slider and the disk of the hard disk drive. The detector detects a signal output from the other end of the slider and the disk, and outputs a change in the capacitance between the slider and the disk as a voltage when the hard disk drive receives an impact.Type: ApplicationFiled: July 13, 2010Publication date: January 27, 2011Applicant: NHK Spring Co., Ltd.Inventors: Hiroshi Komiya, Tatsuhiko Nishida
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Patent number: 7835114Abstract: A disc drive apparatus has a base, a disc, and a carriage. The base has a first vibration mode and a second vibration mode as reference vibration modes with respect to frequency response characteristics observed when the disc drive apparatus is shaken. The second vibration mode has a low-frequency second vibration mode (Base 2nd-1), in which a waveform peak is created on the low-frequency side, and a high-frequency second vibration mode (Base 2nd-2), in which a waveform peak is created on the high-frequency side. The two second vibration modes (Base 2nd-1 and Base 2nd-2) have a relationship such that the phase of a pivot position is inverted between them. A frequency of a first bending mode of an arm of the carriage is set in a frequency domain in a trough between the two second vibration modes.Type: GrantFiled: July 2, 2007Date of Patent: November 16, 2010Assignee: NHK Spring Co., Ltd.Inventors: Masao Hanya, Tatsuhiko Nishida, Jun Soga
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Patent number: 7773345Abstract: A carriage for a disc device, which has a top arm, bottom arm, and mid arm, has a main mode, end arm mode, and mid arm mode as a frequency response obtained when subjected to a vertical shake. In the main mode, all of the top, bottom, and mid arms swing at a first frequency within the same phase in a primary bending mode. In an end arm mode, the top and bottom arms swing at a second frequency higher than the first frequency within opposite phases and with an amplitude larger than that of the mid arm. In the mid arm mode, the mid arm swings at a third frequency having a difference of 50 Hz or less from the second frequency within the same phase as in the main mode, and the top and bottom arms swing within the phase opposite from that in the main mode.Type: GrantFiled: June 19, 2007Date of Patent: August 10, 2010Assignees: Toshiba Storage Device Corporation, NHK Spring Co., Ltd.Inventors: Takeo Hayashi, Masao Hanya, Tatsuhiko Nishida
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Publication number: 20100037721Abstract: An end effecter is positioned with high precision by stabilizing its attitude. Included are arms each having a pair of rods arranged in parallel, a bracket having the end effecter attached thereto and retained by the pair of rods, ball joints and each including a first joint element having a ball and displaceably connecting the bracket with the arm and a second joint element having a socket for retaining the ball, a connecting member for connecting the pair of parallel rods together and restricting rotation of the rods about an axis that is parallel to the longitudinal direction thereof, and a biasing member for providing a biasing force for retaining the ball in the socket.Type: ApplicationFiled: September 14, 2007Publication date: February 18, 2010Inventors: Takashi Nakao, Tatsuhiko Nishida, Hideaki Nakanishi, Daigoro Nakamura
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Patent number: 7639455Abstract: A head suspension restricts deformation of a flexure caused by frictional force produced between a hard disk and a slider when the hard disk turns in a reverse direction. The head suspension has a load beam resiliently supported with a base. The base is supported with an arm that is turned around an axis. The load beam applies load onto a head having a slider to write and read data to and from the hard disk. The flexure is attached to the load beam and has a tongue that supports the slider. The flexure is provided with a limiter that limits displacement of the tongue due to frictional force produced between the hard disk and the slider when the hard disk is reversely turned. The limiter is on the base side and faces a free end of the tongue. The limiter is integrally formed from a part of the flexure, to face the free end of the tongue.Type: GrantFiled: December 19, 2005Date of Patent: December 29, 2009Assignee: NHK Spring Co., Ltd.Inventors: Norio Horie, Tatsuhiko Nishida, Masao Hanya
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Publication number: 20090301253Abstract: A parallel mechanism includes a base portion, a bracket to which an end effecter is attached, a plurality of actuators attached to the base portion, a plurality of arms through which the plurality of actuators and the bracket are coupled together in parallel, and a control device arranged to control the actuators. When the end effecter in a stopped state is moved to a target position, the control device is arranged to control the actuators so that a level of acceleration at which the end effecter is accelerated is higher than a level of deceleration at which the end effecter is decelerated.Type: ApplicationFiled: May 19, 2009Publication date: December 10, 2009Applicant: MURATA MACHINERY, LTD.Inventors: Tatsuhiko Nishida, Hideaki Nakanishi, Manabu Yamashita