Patents Assigned to Nihon Superior Co., Ltd.
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Patent number: 11839937Abstract: A lead-free solder alloy consisting essentially of: 32 mass % or more and 40 mass % or less of Bi; 0.1 mass % or more and 1.0 mass % or less of Sb; 0.1 mass % or more and 1.0 mass % or less of Cu; 0.001 mass % or more and 0.1 mass % or less of Ni; and a remainder of Sn with unavoidable impurities. The lead-free solder alloy further contains specific elements in amounts in predetermined ranges.Type: GrantFiled: April 10, 2020Date of Patent: December 12, 2023Assignee: NIHON SUPERIOR CO., LTD.Inventor: Tetsuro Nishimura
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Patent number: 10427220Abstract: A nanoparticle production apparatus and automatic production apparatus that allow continuous mass production of nanoparticles with a uniform particle diameter and allow freely adjusting the generation time are provided.Type: GrantFiled: July 11, 2013Date of Patent: October 1, 2019Assignees: APPLIED NANOPARTICLE LABORATORY CORPORATION, NIHON SUPERIOR CO., LTD.Inventors: Teruo Komatsu, Tetsuro Nishimura
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Patent number: 10329642Abstract: A silver electrode joint having a high joint strength obtained by actively minimizing the particle size of a silver-zinc intermetallic compound at the solidification point. A joint obtained by joining an article to be joined, the joint including silver at least as the surface layer thereof, using a solder alloy which comprises 2-9 wt % of zinc, 0.0001-0.1 wt % of manganese and the balance consisting of tin, the solder joint having a joint interface wherein the particle size of a silver-zinc intermetallic compound, which is formed by silver being the surface layer of the article to be joined and zinc in the solder alloy, is 5 ?m or less.Type: GrantFiled: March 12, 2014Date of Patent: June 25, 2019Assignee: NIHON SUPERIOR CO., LTD.Inventors: Tetsuro Nishimura, Shoichi Suenaga, Takashi Nozu, Motonori Miyaoka, Yasufumi Shibata
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Patent number: 10286497Abstract: Provided is a lead-free solder alloy and soldering capable of maintaining strong joining strength even in a high-temperature state after soldering and having high reliability and versatility. The lead-free solder alloy composition of the present invention has Sn—Cu—Ni as a basic composition, which includes 0.1 to 2.0 mass % of Cu, and 0.01 to 0.5 mass % of Ni, 0.1 to 5 mass % of Bi, and 76.0 to 99.5 mass % of Sn, such that it is possible to implement soldering with high reliability without decreasing joining strength of a soldered joint even in a state of being exposed to high temperature for a long time, as well as joining strength at the time of bonding.Type: GrantFiled: April 28, 2015Date of Patent: May 14, 2019Assignee: Nihon Superior Co., Ltd.Inventors: Tetsuro Nishimura, Takatoshi Nishimura
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Patent number: 9999945Abstract: A solder alloy may include a Sn—Cu hypereutectic area having Cu in the amount of up to 7.6 weight percent, from 0.006 to 0.5 weight percent of Al, Al2O3, or a combination thereof.Type: GrantFiled: April 6, 2012Date of Patent: June 19, 2018Assignees: NIHON SUPERIOR CO., LTD., THE UNIVERSITY OF QUEENSLANDInventors: Tetsuro Nishimura, Kazuhiro Nogita, Stuart David McDonald, Jonathan James Read, Tina Ventura
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Patent number: 9999936Abstract: A solder wire bobbinless coil includes a solder wire coil formed by winding a solder wire into a hollow columnar, the solder wire coil having a first coil opening at one end of the hollow columnar, and a second coil opening at the other end of the hollow columnar; and a covering film covering an outer surface of the solder wire coil. The covering film has a first film opening smaller than the first coil opening on a portion covering the first coil opening and a second film opening equal to or smaller than the second coil opening on a portion covering the second coil opening, and the first film opening includes, at a peripheral area thereof, a first protruding portion extending so as to protrude to an inner side of the first coil opening.Type: GrantFiled: June 16, 2016Date of Patent: June 19, 2018Assignee: NIHON SUPERIOR CO., LTD.Inventors: Tetsuro Nishimura, Yutaka Fukushima, Hideki Yoshida
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Patent number: 9956610Abstract: An oxygen source-containing composite nanometal paste including at least composite nanometal particles, in which an organic coating layer is formed around a submicron or smaller silver core, and an oxygen source, which feeds oxygen contributing to pyrolysis at a pyrolysis temperature range in which the organic coating layer is pyrolyzed. The oxygen source comprises an oxygen-containing metal compound, and the oxygen content of the oxygen source is within a range of 0.01 mass % to 2 mass % per 100 mass % of the composite nanometal particles.Type: GrantFiled: February 20, 2013Date of Patent: May 1, 2018Assignees: Applied Nanoparticle Laboratory Corporation, Nihon Superior Co., Ltd.Inventor: Teruo Komatsu
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Publication number: 20160368102Abstract: Provided is a lead-free solder alloy and soldering capable of maintaining strong joining strength even in a high-temperature state after soldering and having high reliability and versatility. The lead-free solder alloy composition of the present invention has Sn—Cu—Ni as a basic composition, which includes 0.1 to 2.0 mass % of Cu, and 0.01 to 0.5 mass % of Ni, 0.1 to 5 mass % of Bi, and 76.0 to 99.5 mass % of Sn, such that it is possible to implement soldering with high reliability without decreasing joining strength of a soldered joint even in a state of being exposed to high temperature for a long time, as well as joining strength at the time of bonding.Type: ApplicationFiled: April 28, 2015Publication date: December 22, 2016Applicant: NIHON SUPERIOR CO., LTDInventors: Tetsuro NISHIMURA, Takatoshi NISHIMURA
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Publication number: 20160136732Abstract: A nanoparticle production method, production apparatus and automatic production apparatus that allow continuous mass production of nanoparticles with a uniform particle diameter and allow freely adjusting the generation time are provided.Type: ApplicationFiled: July 11, 2013Publication date: May 19, 2016Applicants: APPLIED NANOPARTICLE LABORATORY CORPORATION, NIHON SUPERIOR CO., LTD.Inventor: TERUO KOMATSU
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Patent number: 9339893Abstract: The present invention provides a lead-free solder alloy having high reliability and excellent solder bonding properties and suited for the mounting of micronized electronic components at low cost. The lead-free solder alloy according to the present invention has a composition containing 0.5 to 1.5 wt % of Ag, 0.3 to 1.5 wt % of Cu, 0.01 to 0.2 wt % of Ni, 1.0 wt % or less of Ga, and the balance being Sn and unavoidable impurities.Type: GrantFiled: April 16, 2012Date of Patent: May 17, 2016Assignee: Nihon Superior Co., Ltd.Inventor: Tetsuro Nishimura
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Publication number: 20140224861Abstract: Provided is an apparatus for feeding wire solder with high tensile strength and pull cut resistance. The wire solder has an extended wire solder and a core wire having a higher tensile strength than the wire solder. The apparatus for feeding the wire solder comprises a wire solder storage section where the wire solder with a core wire is stored and a core wire rewinding member that takes up an end of the core wire to rewind the core wire. While the core rewinding member is rotated to rewind the core wire, the single or multiple strands of solder are heated to perform soldering at the location of soldering upstream of the core wire rewinding member.Type: ApplicationFiled: April 16, 2014Publication date: August 14, 2014Applicant: NIHON SUPERIOR CO., LTD.Inventor: Tetsuro Nishimura
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Patent number: 8652269Abstract: Disclosed herein are a flux and a soldering paste based on the flux. The flux is free from a change in viscosity with age, “skinned surface,” and “rough and crumbling,” and is excellent in printability and solderability. The flux contains, as elements, a resin, a thixo agent, an activator, a solvent and glucopyranosylamine type nanotube. The soldering paste further contains a solder powder. Preferably, the solder powder is free from lead.Type: GrantFiled: September 25, 2009Date of Patent: February 18, 2014Assignee: Nihon Superior Co., Ltd.Inventors: Tetsuro Nishimura, Mitsuhiro Kawahara, Masuml Asakawa, Toshimi Shimizu
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Publication number: 20140037369Abstract: The present invention provides a lead-free solder alloy having high reliability and excellent solder bonding properties and suited for the mounting of micronized electronic components at low cost. The lead-free solder alloy according to the present invention has a composition containing 0.5 to 1.5 wt % of Ag, 0.3 to 1.5 wt % of Cu, 0.01 to 0.2 wt % of Ni, 1.0 wt % or less of Ga, and the balance being Sn and unavoidable impurities.Type: ApplicationFiled: April 16, 2012Publication date: February 6, 2014Applicant: NIHON SUPERIOR CO., LTD.Inventor: Tetsuro Nishimura
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Publication number: 20140030140Abstract: A solder alloy may include a Sn—Cu hypereutectic area having Cu in the amount of up to 7.6 weight percent, from 0.006 to 0.5 weight percent of Al, Al2O3, or a combination thereof.Type: ApplicationFiled: April 6, 2012Publication date: January 30, 2014Applicants: THE UNIVERSITY OF QUEENSLAND, NIHON SUPERIOR CO., LTD.Inventors: Tetsuro Nishimura, Kazuhiro Nogita, Stuart David McDonald, Jonathan James Read, Tina Ventura
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Publication number: 20120286026Abstract: Provided is a solder with high tensile strength and pull cut resistance. The wire solder has an extended wire solder and a core wire having a higher tensile strength than the wire solder. The wire solder has a single or multiple strands bound together. The wire solder is supplied from upstream of a location of soldering while the core wire is rewound under tension at a location downstream of the location of soldering.Type: ApplicationFiled: May 11, 2012Publication date: November 15, 2012Applicant: NIHON SUPERIOR CO., LTD.Inventor: Tetsuro Nishimura
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Publication number: 20120280020Abstract: Provided is an apparatus for feeding wire solder with high tensile strength and pull cut resistance. The wire solder has an extended wire solder and a core wire having a higher tensile strength than the wire solder. The apparatus for feeding the wire solder comprises a wire solder storage section where the wire solder with a core wire is stored and a core wire rewinding member that takes up an end of the core wire to rewind the core wire. While the core rewinding member is rotated to rewind the core wire, the single or multiple strands of solder are heated to perform soldering at the location of soldering upstream of the core wire rewinding member.Type: ApplicationFiled: May 11, 2012Publication date: November 8, 2012Applicant: NIHON SUPERIOR CO., LTD.Inventor: Tetsuro Nishimura
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Publication number: 20110272454Abstract: Provided is a wire solder with high tensile strength and pull cut resistance. An apparatus for feeding the wire solder is also provided. The wire solder has an extended wire solder and a core wire having a higher tensile strength than the wire solder. The core wire is made of thermosetting resin or Joulean heat generating material. The wire solder has a single or multiple strands bound together. The wire solder is supplied from upstream of a location of soldering while the core wire is rewound under tension at a location downstream of the location of soldering. The apparatus for feeding the wire solder comprises a wire solder storage section where the wire solder with a core wire is stored and a core wire rewinding member that takes up an end of the core wire to rewind the core wire. While the core rewinding member is rotated to rewind the core wire, the single or multiple strands of solder are heated to perform soldering at the location of soldering upstream of the core wire rewinding member.Type: ApplicationFiled: January 14, 2010Publication date: November 10, 2011Applicant: NIHON SUPERIOR CO., LTD.Inventor: Tetsuro Nishimura
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Publication number: 20110220247Abstract: Disclosed herein are a flux and a soldering paste based on the flux. The flux is free from a change in viscosity with age, “skinned surface,” and “rough and crumbling,” and is excellent in printability and solderability. The flux contains, as elements, a resin, a thixo agent, an activator, a solvent and glucopyranosylamine type nanotube. The soldering paste further contains a solder powder. Preferably, the solder powder is free from lead.Type: ApplicationFiled: September 25, 2009Publication date: September 15, 2011Applicants: NIHON SUPERIOR CO., LTD., NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGYInventors: Tetsuro Nishimura, Mitsuhiro Kawahara, Masumi Asakawa, Toshimi Shimizu
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Patent number: 5487868Abstract: The invention is a solder alloy which can alleviate the fatigue rupture which occurs at a soldered joint due to a heat cycle. The solder alloy also shows effective use of the addition of Cu. This solder alloy comprises 57 to 65% Sn, 0.1 to 0.5% Sb, 0.002 to 0.05% Te and the balance being lead, wherein all percentages are by weight. The solder alloy of the present invention also supplements the base composition with 0.001 to 0.05% by weight Ga and/or 0.1 to 0.3% by weight Cu.Type: GrantFiled: April 28, 1994Date of Patent: January 30, 1996Assignee: Nihon Superior Co., Ltd.Inventor: Tetsuro Nishimura
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Patent number: 5417771Abstract: A soldering flux comprising a bis (2-oxazoline) compound, a dithiol compound, an organic carboxylic acid compound and an activator which does not require post-soldering cleaning and, yet, does not cause corrosion of the base metal or deterioration of electrical characteristics and helps to clear the statutory regulations on the use of chlorofluorohydrocarbons.A soldering flux comprising, in addition to the above components, an organic solvent, a thermoplastic resin or/and an epoxy group-containing compound.Type: GrantFiled: August 15, 1994Date of Patent: May 23, 1995Assignees: Takeda Chemical Industries, Ltd., Nihon Superior Co., Ltd.Inventors: Kazuhiro Arita, Tetsuro Nishimura