Patents by Inventor Katsufumi Matsui
Katsufumi Matsui 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: 10777918Abstract: A terminal block that includes a housing having a resin part; a bus bar integrally including an embedded part embedded in the resin part and a connecting part projecting outward from the resin part; and a seal sealing a gap existing between the embedded part and the resin part, wherein the seal is formed by an adhesive sheet.Type: GrantFiled: February 9, 2017Date of Patent: September 15, 2020Assignees: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LIMITED, SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Kazuo Nakashima, Katsufumi Matsui
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Patent number: 10673178Abstract: A terminal block in which outflow of a sealing portion made of a rubber-based adhesive can be suppressed even when exposed to a heated environment, and the sealing properties can be maintained. The terminal block includes a housing having a resin portion, a bus bar, and the sealing portion. The bus bar integrally includes an embedded portion embedded in the resin portion, and a connecting portion projecting outward from the resin portion. The sealing portion fills a gap between the embedded portion and the resin portion. The sealing portion is made of a rubber-based adhesive. The bus bar includes a base material made of Cu or a Cu alloy, and an Sn-based plated layer made of Sn or an Sn alloy and partially covering a surface of the base material. The base material is exposed at a sealing region in contact with the sealing portion.Type: GrantFiled: February 20, 2017Date of Patent: June 2, 2020Assignees: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Kazuo Nakashima, Katsufumi Matsui, Takashi Kawakami
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Publication number: 20200169031Abstract: A terminal block in which outflow of a sealing portion made of a rubber-based adhesive can be suppressed even when exposed to a heated environment, and the sealing properties can be maintained. The terminal block includes a housing having a resin portion, a bus bar, and the sealing portion. The bus bar integrally includes an embedded portion embedded in the resin portion, and a connecting portion projecting outward from the resin portion. The sealing portion fills a gap between the embedded portion and the resin portion. The sealing portion is made of a rubber-based adhesive. The bus bar includes a base material made of Cu or a Cu alloy, and an Sn-based plated layer made of Sn or an Sn alloy and partially covering a surface of the base material. The base material is exposed at a sealing region in contact with the sealing portion.Type: ApplicationFiled: February 20, 2017Publication date: May 28, 2020Inventors: Kazuo NAKASHIMA, Katsufumi MATSUI, Takashi KAWAKAMI
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Patent number: 10388428Abstract: An electric wire with a connector in which high adhesiveness can be ensured at both the interface between an insulator and a sealing layer and the interface between a connector housing and the sealing layer, and a wire harness using this electric wire with a connector are provided. The electric wire with a connector includes an insulated electric wire including a conductor and an insulator containing silicone with which the outer circumference of the conductor is coated, a connector terminal connected to a portion of the conductor exposed by stripping a portion of the insulator, a connector housing made of a resin in which an end of the insulated electric wire and a portion of the connector terminal are embedded, and a sealing layer provided between the surface of the insulator and the connector housing covering the outer circumference of the surface of the insulator at the end of the insulated electric wire. The sealing layer is constituted by a sticky adhesive.Type: GrantFiled: July 20, 2016Date of Patent: August 20, 2019Assignees: AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.Inventors: Kazuo Nakashima, Katsufumi Matsui, Takaaki Hamaguchi, Koki Murata
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Publication number: 20190044257Abstract: A terminal block that includes a housing having a resin part; a bus bar integrally including an embedded part embedded in the resin part and a connecting part projecting outward from the resin part; and a seal sealing a gap existing between the embedded part and the resin part, wherein the seal is formed by an adhesive sheet.Type: ApplicationFiled: February 9, 2017Publication date: February 7, 2019Applicants: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LIMITED, SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Kazuo NAKASHIMA, Katsufumi MATSUI
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Publication number: 20190013113Abstract: An electric wire with a connector in which high adhesiveness can be ensured at both the interface between an insulator and a sealing layer and the interface between a connector housing and the sealing layer, and a wire harness using this electric wire with a connector are provided. The electric wire with a connector includes an insulated electric wire including a conductor and an insulator containing silicone with which the outer circumference of the conductor is coated, a connector terminal connected to a portion of the conductor exposed by stripping a portion of the insulator, a connector housing made of a resin in which an end of the insulated electric wire and a portion of the connector terminal are embedded, and a sealing layer provided between the surface of the insulator and the connector housing covering the outer circumference of the surface of the insulator at the end of the insulated electric wire. The sealing layer is constituted by a sticky adhesive.Type: ApplicationFiled: July 20, 2016Publication date: January 10, 2019Inventors: Kazuo NAKASHIMA, Katsufumi MATSUI, Takaaki HAMAGUCHI, Koki MURATA
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Patent number: 10147517Abstract: A wire harness that includes an electric wire provided with a conductor and an insulator that coats an outer periphery of the conductor, a terminal connected to the conductor at a terminal end of the electric wire, and a molded resin portion that covers an outer periphery of the insulator at the terminal end of the electric wire and an outer periphery of an end portion on the electric wire side of the terminal. A storage modulus E? of the insulator that is measured using a dynamic viscoelasticity measurement device in a tensed mode at a temperature increase rate of 5° C./min and a frequency of 10. Hz is 100 MPa or less at 25° C. and 1 MPa or more at 250° C., and a starting temperature (T) of a rubbery plateau region (G) is 150° C. or less.Type: GrantFiled: November 18, 2016Date of Patent: December 4, 2018Assignees: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Kazuo Nakashima, Katsufumi Matsui, Kouji Fukumoto, Kentaro Tachi
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Publication number: 20180336979Abstract: A wire harness that includes an electric wire provided with a conductor and an insulator that coats an outer periphery of the conductor, a terminal connected to the conductor at a terminal end of the electric wire, and a molded resin portion that covers an outer periphery of the insulator at the terminal end of the electric wire and an outer periphery of an end portion on the electric wire side of the terminal. A storage modulus E? of the insulator that is measured using a dynamic viscoelasticity measurement device in a tensed mode at a temperature increase rate of 5° C./min and a frequency of 10. Hz is 100 MPa or less at 25° C. and 1 MPa or more at 250° C., and a starting temperature (T) of a rubbery plateau region (G) is 150° C. or less.Type: ApplicationFiled: November 18, 2016Publication date: November 22, 2018Inventors: Kazuo NAKASHIMA, Katsufumi MATSUI, Kouji FUKUMOTO, Kentaro TACHI
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Patent number: 9722349Abstract: It is an object of the present invention to ensure a high water-stopping property of a wire harness including a waterproofing connector section that is molded from a resin, by suppressing a variation in the outer size of a seal section of the connector section. The connector section is made from a first synthetic resin that is insert-molded with a part of a terminal fitting of the terminated electric cable used as an insert section. A water-stopping section is made from a second synthetic resin that is insert-molded with a section extending from a part of the terminal fitting to an insulation coating of the terminated electric cable used as an insert section. The seal section is made from the second synthetic resin that is insert-molded with a part of the connector section used as an insert section. The second synthetic resin is softer than the first synthetic resin.Type: GrantFiled: February 26, 2014Date of Patent: August 1, 2017Assignees: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Ayumu Ishihara, Tatsuya Hase, Katsufumi Matsui, Kouji Fukumoto, Daisuke Hashimoto, Kentaro Tachi
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Patent number: 9640963Abstract: A terminal-provided wire (1) includes an insulated wire (10) with an insulation coating (12) made of polyolefin-based resin, an adhesive layer (30) formed on a surface of the insulation coating (12) over the entire circumference and a waterproof resin portion (40) formed by insert molding. The waterproof resin portion (40) covers an area from a part of the insulated wire (10) where the adhesive layer (30) is formed to a connected part (21) of a metal terminal (20) to a core (11). The adhesive layer 30) is made of modified olefin-based resin, which is olefin-based resin modified with a polar group. The waterproof resin portion (40) is made of aromatic nylon.Type: GrantFiled: January 31, 2013Date of Patent: May 2, 2017Assignees: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Masaharu Suetani, Tetsuya Nakamura, Katsufumi Matsui, Kazuo Nakashima, Kouji Fukumoto, Daisuke Hashimoto, Toshiya Hirooka, Kentaro Tachi
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Publication number: 20170012370Abstract: A connector-equipped electrical wire has a coated electrical wire, a terminal metal fitting, a connector housing, and an adhesive. The coated electrical wire has a conductor and a coating material that is made of a cross-linked polyethylene resin and with which the conductor is coated. The terminal metal fitting is connected to an end portion of the coated electrical wire. The connector housing in which the end portion is embedded is integrally formed with the coated electrical wire and the terminal metal fitting. The adhesive is disposed in a portion of a gap located between the coating material of the end portion and the connector housing, and seals the gap.Type: ApplicationFiled: December 23, 2014Publication date: January 12, 2017Inventors: Takaaki HAMAGUCHI, Tatsuya HASE, Katsufumi MATSUI, Kazuo NAKASHIMA
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Patent number: 9281101Abstract: An electric wire with a terminal may include an insulated electric wire that may include an insulating coating of polyolefin based resin, an adhesive layer that may be formed over an entire circumference of a surface of the insulating coating, and a waterproofing resin portion that may be formed by insert molding. The waterproofing resin portion may cover a region between the adhesive layer of the insulated electric wire and a portion where the metal terminal is connected to a core wire. The adhesive layer may include a composition of a copolymer of ethylene and glycidyl methacrylate and a phenol based curing agent. The waterproofing resin portion may include aromatic nylon.Type: GrantFiled: November 30, 2012Date of Patent: March 8, 2016Assignees: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Kentaro Tachi, Tetsuya Nakamura, Katsufumi Matsui, Kouji Fukumoto, Masaharu Suetani, Daisuke Hashimoto, Toshiya Hirooka
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Publication number: 20150372415Abstract: It is an object of the present invention to ensure a high water-stopping property of a wire harness including a waterproofing connector section that is molded from a resin, by suppressing a variation in the outer size of a seal section of the connector section. The connector section is made from a first synthetic resin that is insert-molded with a part of a terminal fitting of the terminated electric cable used as an insert section. A water-stopping section is made from a second synthetic resin that is insert-molded with a section extending from a part of the terminal fitting to an insulation coating of the terminated electric cable used as an insert section. The seal section is made from the second synthetic resin that is insert-molded with a part of the connector section used as an insert section. The second synthetic resin is softer than the first synthetic resin.Type: ApplicationFiled: February 26, 2014Publication date: December 24, 2015Applicants: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Ayumu ISHIHARA, Tatsuya HASE, Katsufumi MATSUI, Kouji FUKUMOTO, Daisuke HASHIMOTO, Kentaro TACHI
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Publication number: 20150047900Abstract: A terminal-provided wire (1) includes an insulated wire (10) with an insulation coating (12) made of polyolefin-based resin, an adhesive layer (30) formed on a surface of the insulation coating (12) over the entire circumference and a waterproof resin portion (40) formed by insert molding. The waterproof resin portion (40) covers an area from a part of the insulated wire (10) where the adhesive layer (30) is formed to a connected part (21) of a metal terminal (20) to a core (11). The adhesive layer 30) is made of modified olefin-based resin, which is olefin-based resin modified with a polar group. The waterproof resin portion (40) is made of aromatic nylon.Type: ApplicationFiled: January 31, 2013Publication date: February 19, 2015Inventors: Masaharu Suetani, Tetsuya Nakamura, Katsufumi Matsui, Kazuo Nakashima, Kouji Fukumoto, Daisuke Hashimoto, Toshiya Hirooka, Kentaro Tachi
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Publication number: 20140318862Abstract: An electric wire with a terminal may include an insulated electric wire that may include an insulating coating of polyolefin based resin, an adhesive layer that may be formed over an entire circumference of a surface of the insulating coating, and a waterproofing resin portion that may be formed by insert molding. The waterproofing resin portion may cover a region between the adhesive layer of the insulated electric wire and a portion where the metal terminal is connected to a core wire. The adhesive layer may include a composition of a copolymer of ethylene and glycidyl methacrylate and a phenol based curing agent. The waterproofing resin portion may include aromatic nylon.Type: ApplicationFiled: November 30, 2012Publication date: October 30, 2014Inventors: Kentaro Tachi, Tetsuya Nakamura, Katsufumi Matsui, Kouji Fukumoto, Masaharu Suetani, Daisuke Hashimoto, Toshiya Hirooka
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Publication number: 20110193442Abstract: There is disclosed an insulated wire comprising a conductor, a primer layer coating the conductor, and an insulating layer coating the primer layer. The primer layer is formed by curing an epoxy resin.Type: ApplicationFiled: October 9, 2008Publication date: August 11, 2011Inventors: Kengo Yoshida, Katsufumi Matsui, Masahiro Koyano
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Publication number: 20090277666Abstract: A heat-resistant resin varnish characterized by comprising a polyamideimide resin whose terminal isocyanate group is blocked with a blocking agent and a polyamic acid, which is freed from viscosity increase even without employing any complicated step such as heating or cooling and which is easily applicable to a substrate and can form, through curing, films having excellent strength and elongation (toughness) equivalent to those of polyimide resin; heat-resistant resin films which are made of a heat-resistant resin formed by baking the varnish and have excellent toughness; heat-resistant composites having the heat-resistant resin films; and insulated wire which is covered with an insulating coating film made from the varnish through curing and having excellent toughness and which can be easily manufactured at a low cost.Type: ApplicationFiled: June 28, 2007Publication date: November 12, 2009Inventors: Masa-aki Yamauchi, Masaya Kakimoto, Akira Mizoguchi, Tooru Shimizu, Masahiro Koyano, Katsufumi Matsui, Kengo Yoshida