Patents by Inventor Hiroki Takashima
Hiroki Takashima 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: 10472739Abstract: A yarn producing apparatus for producing carbon nanotube (CNT) yarn by aggregating CNT fibers. A front roller continuously draws the CNT fibers from at least one CNT forming substrate, a yarn producing unit aggregates the CNT fibers drawn by the front roller, and a status monitors a state of the CNT fibers drawn from the CNT forming substrate, or the CNT yarn.Type: GrantFiled: July 22, 2013Date of Patent: November 12, 2019Assignee: Murata Machinery Ltd.Inventors: Fumiaki Yano, Shuichi Fukuhara, Hiroki Takashima
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Patent number: 10450678Abstract: A yarn producing apparatus produces carbon nanotube (CNT) yarn by aggregating CNT fibers, A substrate support supports a CNT forming substrate, a winding unit continuously draws the CNT fibers, a yarn producing unit aggregates the CNT fibers, a status monitor monitors a state of the CNT yarn, and a supply state changing mechanism changes a supply state of the CNT fibers, based on a result of monitoring by the status monitor.Type: GrantFiled: July 22, 2013Date of Patent: October 22, 2019Assignee: Murata Machinery, Ltd.Inventors: Fumiaki Yano, Hiroki Takashima, Shuichi Fukuhara
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Patent number: 10400361Abstract: A yarn producing apparatus produces CNT (carbon nanotube) yarn from CNT fibers while causing the CNT fibers to run. The yarn producing apparatus includes an aggregating unit that aggregates the CNT fibers, and a twisting and winding device that twists the CNT fibers aggregated by the aggregating unit. The aggregating unit includes an adjusting mechanism that adjusts the aggregation state of the CNT fibers.Type: GrantFiled: July 22, 2013Date of Patent: September 3, 2019Assignee: MURATA MACHINERY, LTD.Inventor: Hiroki Takashima
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Patent number: 10351977Abstract: A yarn producing apparatus is an apparatus for producing CNT (carbon nanotube) yarn from CNT fibers while causing the CNT fibers to run. The yarn producing apparatus includes an aggregating unit that aggregates the CNT fibers, and a twisting and winding device that twists the CNT fibers aggregated by the aggregating unit.Type: GrantFiled: July 22, 2013Date of Patent: July 16, 2019Assignee: MURATA MACHINERY, LTD.Inventor: Hiroki Takashima
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Patent number: 10179959Abstract: A yarn producing apparatus produces carbon nanotube (CNT) yarn by aggregating CNT fibers. A substrate support supports a CNT forming substrate, a winding unit 7 continuously draws the CNT fibers, a yarn producing unit aggregates the CNT fibers, and a substrate replacing mechanism replaces the carbon nanotube forming substrate supported on the substrate support with another carbon nanotube forming substrate.Type: GrantFiled: July 22, 2013Date of Patent: January 15, 2019Assignee: Murata Machinery, Ltd.Inventors: Fumiaki Yano, Hiroki Takashima, Shuichi Fukuhara
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Patent number: 10017882Abstract: A yarn producing apparatus produces CNT (carbon nanotube) yarn from CNT fibers while causing the CNT fibers to run. The yarn producing apparatus includes a wind driving mechanism that causes a winding shaft provided with a winding tube to rotate about a winding centerline of the winding shaft to wind the CNT yarn onto the winding tube, a twist driving mechanism that causes a guide to rotate around the winding tube and guide the CNT yarn to the winding tube, to twist the CNT fibers and produce the CNT yarn while causing the CNT fibers, CNT yarn, or both to swirl, and a traverse driving mechanism that causes the guide to reciprocate relative to the winding tube along the winding centerline of the winding shaft to cause the CNT yarn to traverse the winding tube.Type: GrantFiled: July 22, 2013Date of Patent: July 10, 2018Assignee: MURATA MACHINERY, LTD.Inventor: Hiroki Takashima
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Patent number: 9945053Abstract: A yarn producing apparatus includes front rollers movable while carbon nanotube (CNT) fibers are running and aggregates the CNT fibers. Each of the front rollers includes a groove provided on an outer circumference thereof to aggregate the CNT fibers.Type: GrantFiled: July 22, 2013Date of Patent: April 17, 2018Assignee: MURATA MACHINERY, LTD.Inventors: Fumiaki Yano, Shuichi Fukuhara, Hiroki Takashima
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Publication number: 20160168763Abstract: A yarn producing apparatus produces carbon nanotube (CNT) yarn by aggregating CNT fibers. A substrate support supports a CNT forming substrate, a winding unit 7 continuously draws the CNT fibers, a yarn producing unit aggregates the CNT fibers, and a substrate replacing mechanism replaces the carbon nanotube forming substrate supported on the substrate support with another carbon nanotube forming substrate.Type: ApplicationFiled: July 22, 2013Publication date: June 16, 2016Applicant: Murata Machinery, Ltd.Inventors: Fumiaki YANO, Hiroki TAKASHIMA, Shuichi FUKUHARA
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Publication number: 20160160398Abstract: A yarn producing apparatus for producing carbon nanotube (CNT) yarn by aggregating CNT fibers. A front roller continuously draws the CNT fibers from at least one CNT forming substrate, a yarn producing unit aggregates the CNT fibers drawn by the front roller, and a status monitors a state of the CNT fibers drawn from the CNT forming substrate, or the CNT yarn.Type: ApplicationFiled: July 22, 2013Publication date: June 9, 2016Applicant: Murata Machinery, Ltd.Inventors: Fumiaki YANO, Shuichi FUKUHARA, Hiroki TAKASHIMA
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Publication number: 20160160401Abstract: A yarn producing apparatus is an apparatus for producing CNT (carbon nanotube) yarn from CNT fibers while causing the CNT fibers to run. The yarn producing apparatus includes an aggregating unit that aggregates the CNT fibers, and a twisting and winding device that twists the CNT fibers aggregated by the aggregating unit.Type: ApplicationFiled: July 22, 2013Publication date: June 9, 2016Inventor: Hiroki TAKASHIMA
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Publication number: 20160160402Abstract: A yarn producing apparatus produces carbon nanotube (CNT) yarn by aggregating CNT fibers, A substrate support supports a CNT forming substrate, a winding unit continuously draws the CNT fibers, a yarn producing unit aggregates the CNT fibers, a status monitor monitors a state of the CNT yarn, and a supply state changing mechanism changes a supply state of the CNT fibers, based on a result of monitoring by the status monitor.Type: ApplicationFiled: July 22, 2013Publication date: June 9, 2016Applicant: Murata Machinery, Ltd.Inventors: Fumiaki YANO, Hiroki TAKASHIMA, Shuichi FUKUHARA
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Publication number: 20160153124Abstract: A yarn producing apparatus includes front rollers movable while carbon nanotube (CNT) fibers are running and aggregates the CNT fibers. Each of the front rollers includes a groove provided on an outer circumference thereof to aggregate the CNT fibers.Type: ApplicationFiled: July 22, 2013Publication date: June 2, 2016Inventors: Fumiaki YANO, Shuichi FUKUHARA, Hiroki TAKASHIMA
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Publication number: 20160153125Abstract: A yarn producing apparatus produces CNT (carbon nanotube) yarn from CNT fibers while causing the CNT fibers to run. The yarn producing apparatus includes an aggregating unit that aggregates the CNT fibers, and a twisting and winding device that twists the CNT fibers aggregated by the aggregating unit. The aggregating unit includes an adjusting mechanism that adjusts the aggregation state of the CNT fibers.Type: ApplicationFiled: July 22, 2013Publication date: June 2, 2016Inventor: Hiroki TAKASHIMA
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Publication number: 20160138202Abstract: A yarn producing apparatus produces CNT carbon nanotube) yarn from CNT fibers while causing the CNT fibers to run. The yarn producing apparatus includes a wind driving mechanism that causes a winding shaft provided with a winding tube to rotate about a winding centerline of the winding shaft to wind the CNT yarn onto the winding tube, a twist driving mechanism that causes a guide to rotate around the winding tube and guide the CNT yarn to the winding tube, to twist the CNT fibers and produce the CNT yarn while causing the CNT fibers, CNT yarn, or both to swirl, and a traverse driving mechanism that causes the guide to reciprocate relative to the winding tube along the winding centerline of the winding shaft to cause the CNT yarn to traverse the winding tube.Type: ApplicationFiled: July 22, 2013Publication date: May 19, 2016Inventor: Hiroki TAKASHIMA
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Publication number: 20140037413Abstract: Provided is a suction chuck that is lightweight and that sucks and releases a thin plate workpiece in such a manner that the thin plate workpiece is not in contact with an edge of the chuck. A suction chuck according to an embodiment of the present invention includes a main body having a flat plate shape, and an opposing surface. Compressed air passages are formed within the main body. The opposing surface is a surface of the main body at the side facing the workpiece. The opposing surface has a plurality of recesses formed therein. The plurality of recesses serve as a sucking element for generating a negative pressure by ejecting the compressed air. The opposing surface is formed with a shape similar to the shape of the workpiece (or with a shape that corresponds to the shape of the workpiece being offset outward) such that the shape of the opposing surface is able to completely cover the shape of the workpiece when seen along a direction perpendicular to the opposing surface.Type: ApplicationFiled: February 23, 2012Publication date: February 6, 2014Applicant: MURATA MACHINERY, LTD.Inventors: Hiroki Takashima, Hideaki Nakanishi
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Patent number: 7905442Abstract: A filament winding apparatus includes a hoop winding device and a helical winding device. The hoop winding device includes a disc-shaped wrapping table, a drive mechanism that rotatably drives the wrapping table, four bobbins supported along a peripheral edge of the wrapping table, and a guide member that moves and guides a fiber bundle fed from the bobbin to a mandrel arranged in an insertion hole of the wrapping table. The bobbin is axially supported in a freely rotatable manner with a chuck of a holder fixed to the wrapping table. A ratchet mechanism, which prevents over-rotation in a fiber bundle feeding direction of the bobbin, is arranged between the holder and the chuck.Type: GrantFiled: August 12, 2008Date of Patent: March 15, 2011Assignee: Murata Machinery, LtdInventors: Tadashi Uozumi, Hiroki Takashima, Motohiro Tanigawa
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Patent number: 7810754Abstract: The present invention makes it possible to increase production efficiency while reducing costs.Type: GrantFiled: July 2, 2008Date of Patent: October 12, 2010Assignee: Murata Machinery, Ltd.Inventors: Tadashi Uozumi, Hiroki Takashima, Motohiro Tanigawa
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Patent number: 7810753Abstract: Helical winding is reliably carried out in a plurality of patterns at different angles in a short period of time. A filament winding apparatus for winding fiber bundles onto the surface of a mandrel includes a helical winding head for use in helical winding of the fiber bundles onto the mandrel. The helical winding head includes at least two guide arrays, each including a plurality of guide portions disposed along a circumferential direction of the mandrel, and a repositioning mechanism capable of repositioning the guide portions by rotating each guide array relative to another.Type: GrantFiled: February 14, 2008Date of Patent: October 12, 2010Assignee: Murata Machinery, Ltd.Inventors: Tadashi Uozumi, Hiroki Takashima, Motohiro Tanigawa
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Patent number: 7780110Abstract: A filament winding apparatus equipped with a transfer mechanism of a terminating end of a fiber bundle using a transfer ring that can be switched from a mandrel after the winding process to a mandrel before the winding process. A cutter cuts a fiber bundle wound around a first transfer ring integral with a mandrel after the winding process and a second transfer ring is moved to the mandrel before the winding process between the first and second transfer rings; and a friction roller positions and holds the second transfer ring when cutting the fiber bundle. The friction roller is pressed and biased against the second transfer ring by a compression spring.Type: GrantFiled: August 21, 2008Date of Patent: August 24, 2010Assignee: Murata Machinery, Ltd.Inventors: Tadashi Uozumi, Hiroki Takashima, Motohiro Tanigawa
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Publication number: 20090107628Abstract: A resin adhesion method and apparatus in an FW molding achieves high speed and facilitates maintenance. A resin is adhered to a fiber by injecting the resin towards a surface of the fiber through a droplet injection device including a plurality of base resin injection nozzles and curing agent injection nozzles. A traveling device travels the fiber with a predetermined opposing spacing with the nozzles. A first path includes a base resin tank that supplies the base resin to the droplet injection device. A second path includes a curing agent tank that supplies the curing agent to the droplet injection device.Type: ApplicationFiled: September 12, 2008Publication date: April 30, 2009Applicant: MURATA MACHINERY, LTD.Inventors: Tadashi UOZUMI, Motohiro TANIGAWA, Hiroki TAKASHIMA