Patents by Inventor Takeshi Miyachi
Takeshi Miyachi 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: 8851761Abstract: In a split cage for a rolling bearing, cage segments each having a plurality of pockets that accommodate rolling elements are arranged in a circular manner along the circumferential direction. Protrusions are formed on end faces of rims of one of the adjacent cage segments, and grooves are formed in end faces of rims of the other one of the adjacent cage segments. By fitting the protrusions into the grooves, the adjacent cage segments are prevented from moving relative to each other in the radial direction.Type: GrantFiled: May 20, 2013Date of Patent: October 7, 2014Assignee: JTEKT CorporationInventor: Takeshi Miyachi
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Patent number: 8770853Abstract: A split cage for a rolling bearing includes a plurality of cage segments formed of synthetic resin and arranged annularly in a circumferential direction. Each cage segment includes: a first rim portion and a second rim portion that are spaced from each other by a predetermined interval and face each other; and a plurality of bar portions extending from the first rim portion to the second rim portion. Spaces, each of which is surrounded by the bar portions adjacent to each other and the first and second rim portions, are formed as pockets that house rolling elements. Projections for reinforcement are formed at radial end portions of boundaries between the bar portions and the first rim portion and/or boundaries between the bar portions and the second rim portion.Type: GrantFiled: May 17, 2013Date of Patent: July 8, 2014Assignee: JTEKT CorporationInventor: Takeshi Miyachi
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Patent number: 8689960Abstract: A torque limiter in which an area of a region where an area of a region where an inner face of a circumferentially extending chamber intersects an oil pressure expanding chamber in an extended plane extended toward the oil pressure expanding chamber is larger than a sectional area of an opening of the oil removing hole which is opened to the circumferentially extending chamber.Type: GrantFiled: March 18, 2013Date of Patent: April 8, 2014Assignee: JTEKT CorporationInventors: Akihide Nagayama, Takeshi Miyachi
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Publication number: 20140013603Abstract: A split cage is configured by annularly arranging cage segments in a circumferential direction. Each cage segment includes a pair of first and second rim portions spaced from each other by a predetermined interval and facing each other, and bar portions extending from the first rim portion to the second rim portion. Spaces, each of which is surrounded by the adjacent bar portions and the first and second rim portions, are formed as pockets that house rolling elements. A jig for the split cage includes a looped band wound on an outer peripheral side of the first or second rim portions of the cage segments annularly arranged. The band includes a lock portion that is able to adjust a loop length of the band with respect to an outer peripheral length of the first or second rim portions, and that is able to fix the adjusted loop length.Type: ApplicationFiled: July 5, 2013Publication date: January 16, 2014Inventor: Takeshi MIYACHI
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Publication number: 20130315522Abstract: In a split cage for a rolling bearing, cage segments each having a plurality of pockets that accommodate rolling elements are arranged in a circular manner along the circumferential direction. Protrusions are formed on end faces of rims of one of the adjacent cage segments, and grooves are formed in end faces of rims of the other one of the adjacent cage segments. By fitting the protrusions into the grooves, the adjacent cage segments are prevented from moving relative to each other in the radial direction.Type: ApplicationFiled: May 20, 2013Publication date: November 28, 2013Applicant: JTEKT CORPORATIONInventor: Takeshi MIYACHI
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Publication number: 20130308885Abstract: A split cage for a rolling bearing includes a plurality of cage segments formed of synthetic resin and arranged annularly in a circumferential direction. Each cage segment includes: a first rim portion and a second rim portion that are spaced from each other by a predetermined interval and face each other; and a plurality of bar portions extending from the first rim portion to the second rim portion. Spaces, each of which is surrounded by the bar portions adjacent to each other and the first and second rim portions, are formed as pockets that house rolling elements. Projections for reinforcement are formed at radial end portions of boundaries between the bar portions and the first rim portion and/or boundaries between the bar portions and the second rim portion.Type: ApplicationFiled: May 17, 2013Publication date: November 21, 2013Applicant: JTEKT CORPORATIONInventor: Takeshi MIYACHI
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Publication number: 20130248319Abstract: A torque limiter in which an area of a region where an area of a region where an inner face of a circumferentially extending chamber intersects an oil pressure expanding chamber in an extended plane extended toward the oil pressure expanding chamber is larger than a sectional area of an opening of the oil removing hole which is opened to the circumferentially extending chamber.Type: ApplicationFiled: March 18, 2013Publication date: September 26, 2013Applicant: JTEKT CORPORATIONInventors: Akihide Nagayama, Takeshi Miyachi
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Patent number: 8485733Abstract: A cage is formed of a plurality of spacers that are arranged along a circumference of a same circle. Each spacer includes: first, second and third cage bars extending in substantially an axial direction of the circle and located at intervals from each other; a first coupling portion that couples an end portions of the first and second cage bars at one of the axial direction; and a second coupling portion that couples the other end portions of the second and third cage bars at the other one of the axial direction. The first cage bar, the second cage bar and the first coupling portion define a first pocket that is open at the other one of the axial direction side, and the second cage bar, the third cage bar and the second coupling portion define a second pocket that is open at the one of the axial direction side.Type: GrantFiled: September 15, 2011Date of Patent: July 16, 2013Assignee: JTEKT CorporationInventor: Takeshi Miyachi
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Patent number: 8424663Abstract: A torque limiter in which an area of a region where an inner face of a circumferentially extending chamber intersects an oil pressure expanding chamber in an extended plane extended toward the oil pressure expanding chamber is larger than a sectional area of an opening of an oil removing hole which is opened to the circumferentially extending chamber.Type: GrantFiled: January 30, 2009Date of Patent: April 23, 2013Assignee: JTEKT CorporationInventors: Akihide Nagayama, Takeshi Miyachi
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Patent number: 8308373Abstract: An outer tapered member (4) having a conical inner circumferential surface is placed and an inner tapered member (5) having a conical outer circumferential surface in contact with the conical inner circumferential surface is placed in a through hole (31) of a first ring (1). A screw member (6) is screwed a predetermined quantity into the through hole (31) to axially press an axial end face of the inner tapered member (5) toward a second ring (2) with a predetermined force and to press the outer surface of the outer tapered member (4) against the through hole (31) of the first ring (1) with a predetermined force. A weld part (7) in contact with a first ring (1) side end portion of a pin (3) and the first ring (1) is formed to prevent the pin (3) from coming out of the first ring (1) by the weld part (7).Type: GrantFiled: March 10, 2009Date of Patent: November 13, 2012Assignee: JTEKT CorporationInventors: Takeshi Miyachi, Junichi Kubo
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Publication number: 20120082409Abstract: A cage is formed of a plurality of spacers that are arranged along a circumference of a same circle. Each spacer includes: first, second and third cage bars extending in substantially an axial direction of the circle and located at intervals from each other; a first coupling portion that couples an end portions of the first and second cage bars at one of the axial direction; and a second coupling portion that couples the other end portions of the second and third cage bars at the other one of the axial direction. The first cage bar, the second cage bar and the first coupling portion define a first pocket that is open at the other one of the axial direction side, and the second cage bar, the third cage bar and the second coupling portion define a second pocket that is open at the one of the axial direction side.Type: ApplicationFiled: September 15, 2011Publication date: April 5, 2012Applicant: JTEKT CORPORATIONInventor: Takeshi MIYACHI
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Publication number: 20110002572Abstract: An outer tapered member (4) having a conical inner circumferential surface is placed and an inner tapered member (5) having a conical outer circumferential surface in contact with the conical inner circumferential surface is placed in a through hole (31) of a first ring (1). A screw member (6) is screwed a predetermined quantity into the through hole (31) to axially press an axial end face of the inner tapered member (5) toward a second ring (2) with a predetermined force and to press the outer surface of the outer tapered member (4) against the through hole (31) of the first ring (1) with a predetermined force. A weld part (7) in contact with a first ring (1) side end portion of a pin (3) and the first ring (1) is formed to prevent the pin (3) from coming out of the first ring (1) by the weld part (7).Type: ApplicationFiled: March 10, 2009Publication date: January 6, 2011Inventors: Takeshi Miyachi, Junichi Kubo
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Publication number: 20110002729Abstract: There is provided a torque limiter in which oil in an oil pressure expanding chamber can be rapidly removed, when an inner peripheral face of a tube member has slipped with respect to an outer peripheral face of a shaft member, and burn-outs are unlikely to occur on the shaft member and the tube member. An area of a region where an inner face of a circumferentially extending chamber 38 intersects an oil pressure expanding chamber 26 in an extended plane extended toward the oil pressure expanding chamber 26 is made larger than a sectional area of an opening of an oil removing hole which is opened to the circumferentially extending chamber 38.Type: ApplicationFiled: January 30, 2009Publication date: January 6, 2011Inventors: Akihide Nagayama, Takeshi Miyachi
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Patent number: 7858958Abstract: A fabrication method of an optical element having a multilayer film includes the steps of forming a multilayer film on a substrate, measuring a secondary radiation radiated from the multilayer film when a light with a wavelength of 2 to 40 nm is irradiated to the multilayer film, determining a phase difference between the light irradiated to the multilayer film and the light reflected from the multilayer film based on a measurement result of the measuring step, and modifying the multilayer film based on the determined phase difference.Type: GrantFiled: May 15, 2009Date of Patent: December 28, 2010Assignee: Canon Kabushiki KaishaInventors: Takeshi Miyachi, Akira Miyake
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Publication number: 20100209037Abstract: Screw thread holes 20 circumferentially spaced from each other are formed in a first ring 10, and through holes 21 circumferentially spaced from each other are formed in a second ring 11. A screw thread section 40 and a press fitting section 42 are formed on the outer periphery of each pin 13. The minimum inner diameter of the through holes 21 in the second ring 11 is set greater than the maximum outer diameter of a portion of the pin 13 which is positioned closer to the screw thread section 40 than the press fitting section 42. The screw thread sections 40 of the pins 13 are screwed into the screw thread holes 20 in the first ring 10, and the press fitting sections 42 of the pins 13 are fixed in the through holes 21 in the second ring 11 by interference fit.Type: ApplicationFiled: June 26, 2008Publication date: August 19, 2010Inventors: Takeshi Miyachi, Junichi Kubo, Takehiro Adachi, Yoshikazu Kurashita, Nobuya Suzuki
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Publication number: 20090218505Abstract: A fabrication method of an optical element having a multilayer film includes the steps of forming a multilayer film on a substrate, measuring a secondary radiation radiated from the multilayer film when a light with a wavelength of 2 to 40 nm is irradiated to the multilayer film, determining a phase difference between the light irradiated to the multilayer film and the light reflected from the multilayer film based on a measurement result of the measuring step, and modifying the multilayer film based on the determined phase difference.Type: ApplicationFiled: May 15, 2009Publication date: September 3, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Takeshi MIYACHI, Akira MIYAKE
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Patent number: 7544960Abstract: A fabrication method of an optical element having a multilayer film includes the steps of forming a multilayer film on a substrate, measuring a secondary radiation radiated from the multilayer film when a light with a wavelength of 2 to 40 nm is irradiated to the multilayer film, determining a phase difference between the light irradiated to the multilayer film and the light reflected from the multilayer film based on a measurement result of the measuring step, and modifying the multilayer film based on the determined phase difference.Type: GrantFiled: May 6, 2005Date of Patent: June 9, 2009Assignee: Canon Kabushiki KaishaInventors: Takeshi Miyachi, Akira Miyake
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Patent number: 7510898Abstract: A manufacturing method of manufacturing an image display device having a wiring and a display element electrically connected to the wiring, comprising a step of dividing a device having the wiring and a substrate holding the wiring, at a predetermined division position, wherein the dividing step comprises a step of dividing the substrate at the predetermined division position and a step of dividing the wiring at the predetermined division position. The step of dividing the wiring is executed in a method different from a method in the step of dividing the substrate. Thus, the device constituting the image display device can be suitably divided.Type: GrantFiled: May 16, 2007Date of Patent: March 31, 2009Assignees: Canon Kabushiki Kaisha, Kabushiki Kaisha ToshibaInventors: Takeshi Miyachi, Masaaki Furuya
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Publication number: 20070275493Abstract: A manufacturing method of manufacturing an image display device having a wiring and a display element electrically connected to the wiring, comprises a step of dividing a device having the wiring and a substrate holding the wiring, at a predetermined division position, and the dividing step further comprises a step of dividing the substrate at the predetermined division position, and a step of dividing the wiring at the predetermined division position. The step of dividing the wiring is executed in a method different from a method in the step of dividing the substrate. Thus, the device constituting the image display device can be suitably divided.Type: ApplicationFiled: May 16, 2007Publication date: November 29, 2007Applicants: Canon Kabushiki Kaisha, Kabushiki Kaisha ToshibaInventors: Takeshi Miyachi, Masaaki Furuya
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Patent number: 7170579Abstract: A light source unit including a condensing mirror for collecting EUV light emitted from a light emission point, a debris reducing member for reducing debris, produced from the light emission point or from a portion around the light emission point, and to be deposited on the condensing mirror, and a base member arranged so that the condensing mirror and the debris reducing member are mounted thereon.Type: GrantFiled: December 21, 2004Date of Patent: January 30, 2007Assignee: Canon Kabushiki KaishaInventors: Takeshi Miyachi, Kazuki Fujimoto