Patents by Inventor Takeshi Aizawa
Takeshi Aizawa 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: 9306316Abstract: A ferrite core integrated waterproof connector includes wires (WH) each having a terminal fittings (20) mounted thereon and a housing (10) with terminal accommodating chambers (12A, 12B) for accommodating the terminal fittings (20). A plate-like rubber plug (30) covers a rear surface (10B) of the housing (10) and has wire insertion holes (31) arranged to correspond to the terminal accommodating chambers (12A, 12B). Lips (32) are formed on the inner peripheral surfaces of the wire insertion holes (31) for closely contacting the outer peripheral surfaces of coatings of the wires (WH). At least one ferrite core (50) is embedded in the one-piece rubber plug (30) and has at least one hollow portion 52 concentric with at least some of the wire insertion holes (31). The ferrite core (50) is radially outward of base parts of the lips (32) of the one-piece rubber plug (30).Type: GrantFiled: August 6, 2014Date of Patent: April 5, 2016Assignees: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRINGS SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventor: Takeshi Aizawa
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Patent number: 9252527Abstract: A relay terminal (10) made of copper or copper alloy and configured to join an aluminum wire (20) and a copper wire (30) by being electrically connected to the aluminum wire (20) and the copper wire (30) includes a first barrel portion (11) to be caulked and crimped to an aluminum core (21) of the aluminum wire (20) made of aluminum or aluminum alloy, which is a metal different from copper or copper alloy constituting the relay terminal (10), a second barrel portion (12) to be caulked and crimped to a copper core (31) of the copper wire (30), a bottom plate (13) configured to link the first barrel portion (11) and the second barrel portion (12), and a projecting portion (41) (water drainage portion (40)) provided on the bottom plate (13) and configured to restrict the intrusion of water from the second barrel portion (12) toward the first barrel portion (11).Type: GrantFiled: December 4, 2012Date of Patent: February 2, 2016Assignees: AUTONETWORKS TECHNOLOGIES, LTD, SUMITOMO WIRING SYSTEMS, LTD, SUMITOMO ELECTRIC INDUSTRIES, LTDInventors: Takeshi Aizawa, Satoshi Morikawa, Yoshihiro Uchiyama, Kazuaki Takeda, Takashi Tonosaki
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Publication number: 20160006186Abstract: Connectors with internal noise filter (10A, 10B) are provided with a uniting means (17, 18) for uniting the connectors with internal noise filters with each other. A terminal fitting (20) connected to one electrode portion (32A) of a capacitor (30) is provided in a connector housing (11a, 11B). A ground connection terminal (40A, 40B) is composed of an electrode connecting portion (42) to be connected to the other electrode portion (32B) of the capacitor (30) and a ground connection portion (41A, 41 B) extending outwardly of the connector housing (11A, 11B) from the electrode connecting portion (42) and including a bolt hole (46H) into which a bolt (B) is fittable. When the respective connectors with internal noise filter (10A, 10B) are united by the uniting means (17, 18), the respective ground connection portions (41A, 41B) are overlapped and the respective bolt holes (46H) are aligned.Type: ApplicationFiled: May 30, 2013Publication date: January 7, 2016Applicants: AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electrical Industries, Ltd.Inventor: Takeshi Aizawa
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Patent number: 9147944Abstract: A female terminal fitting (20) is to be crimped to a wire including a core (12) formed by plural strands (11) and includes a bottom plate (22) on which the core (12) is to be placed, and a pair of crimping pieces (25L, 25R) connected to the bottom plate (22) and to be crimped to the core (12) in such a manner as to embrace the core (12) placed on the bottom plate (22). Butting parts of the respective crimping pieces (25L, 25R) are formed with a thinning portion (27), and a corner portion (30) is formed by deforming the thinning portion (27) when the respective crimping pieces (25L, 25R) are crimped to the core (12). Accordingly, a clearance formed at the butting parts of the respective crimping pieces (25L, 25R) can be made smaller than in the case where the thinning portions (27) are not provided.Type: GrantFiled: December 12, 2012Date of Patent: September 29, 2015Assignees: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Takeshi Aizawa, Satoshi Morikawa, Yoshihiro Uchiyama, Kazuaki Takeda, Takashi Tonosaki
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Patent number: 9136628Abstract: A terminal fitting (20) is crimped to an aluminum wire including a core (12) formed by putting a plurality of strands (11) together. The terminal fitting (20) includes a bottom plate (22) on which the core (12) is placed, and two barrel pieces (25L, 25R) connected to the bottom plate (22) and crimped to the core (12) so as to embrace the core (12) placed on the bottom plate (22). Overlapping portions (24L, 24R) are formed on tip parts of the respective barrel pieces (25L, 25R) by folding a plate material forming the barrel pieces (25L, 25R) to overlap layers of the plate material. The overlapping portions (24L, 24R) contact each other without intruding between the strands (11) when the respective barrel pieces (25L, 25R) are crimped to the core (12). The terminal fitting (20) eliminates breakage of the core (12) and is less affected by spring back.Type: GrantFiled: November 28, 2012Date of Patent: September 15, 2015Assignees: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Takeshi Aizawa, Satoshi Morikawa, Yoshihiro Uchiyama, Kazuaki Takeda, Takashi Tonosaki
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Publication number: 20150244084Abstract: The present invention concerns a female terminal fitting (20) to be crimped to a wire including a core (12) formed by putting a plurality of strands (11) together and including a bottom plate portion (22) on which the core (12) is to be placed, and a pair of crimping pieces (25L, 25R) connected to the bottom plate portion (22) and to be crimped to the core (12) in such a manner as to embrace the core (12) placed on the bottom plate portion (22). Butting parts of the respective crimping pieces (25L, 25R) are formed with a thinning portion (27), and a corner portion (30) is formed by deforming the thinning portion (27) when the respective crimping pieces (25L, 25R) are crimped to the core (12). According to such a configuration, the thinning portion (27) is preferentially deformed by crimping to form the corner portion (30). Thus, a clearance formed at the butting parts of the respective crimping pieces (25L, 25R) can be made smaller than in the case where the thinning portion (27) are not provided.Type: ApplicationFiled: December 12, 2012Publication date: August 27, 2015Inventors: Takeshi Aizawa, Satoshi Morikawa, Yoshihiro Uchiyama, Kazuaki Takeda, Takashi Tonosaki
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Patent number: 9083095Abstract: A wiring module attached to a plurality of electric cells having electrode terminals including positive electrodes and negative electrodes has a plurality of bus bars having pairs of through-holes respectively connected to the positive electrodes and the negative electrodes of the electric cells and bus bar insulating members each held by the adjacent bus bars. Of the plurality of bus bar insulating members, a first bus bar insulating member and a second bus bar insulating member are connected with each other by the bus bar.Type: GrantFiled: February 21, 2012Date of Patent: July 14, 2015Assignees: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Shinichi Takase, Osamu Nakayama, Ryoya Okamoto, Mitsutoshi Morita, Kensaku Takata, Hiroki Hirai, Katsutoshi Saijo, Hiroomi Hiramitsu, Takeshi Aizawa
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Publication number: 20150044895Abstract: A ferrite core integrated waterproof connector includes wires (WH) each having a terminal fittings (20) mounted thereon and a housing (10) with terminal accommodating chambers (12A, 12B) for accommodating the terminal fittings (20). A plate-like rubber plug (30) covers a rear surface (10B) of the housing (10) and has wire insertion holes (31) arranged to correspond to the terminal accommodating chambers (12A, 12B). Lips (32) are formed on the inner peripheral surfaces of the wire insertion holes (31) for closely contacting the outer peripheral surfaces of coatings of the wires (WH). At least one ferrite core (50) is embedded in the one-piece rubber plug (30) and has at least one hollow portion 52 concentric with at least some of the wire insertion holes (31). The ferrite core (50) is radially outward of base parts of the lips (32) of the one-piece rubber plug (30).Type: ApplicationFiled: August 6, 2014Publication date: February 12, 2015Inventor: Takeshi Aizawa
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Publication number: 20150042416Abstract: A noise filter device has a coil (31) formed by winding a conductive wire on a magnetic core (32). The noise filter device further has a bracket (21) formed of a magnetic material and grounded. The bracket (21) has a bottom plate (22) and two end plates (23A, 23B) that project from the bottom plate (22). The end plates (23A, 23B) face opposite end surfaces (32M) of the magnetic core (32) with predetermined gaps (Gp) defined between the end plates and the end surfaces. The noise filter device further has capacitors (41) that form part of a noise filter circuit (C) together with the coil (31) and that are connected to the bracket (21). A housing (11) houses the coil (31), the capacitors (41) and the bracket (21) in an at least partly exposed state, and input and output terminals (WH) are provided for the noise filter circuit (C).Type: ApplicationFiled: August 4, 2014Publication date: February 12, 2015Inventor: Takeshi Aizawa
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Publication number: 20150008989Abstract: A noise filter device includes a ground connection terminal (21) for grounding, a coil (31) formed by winding a conductive wire (33), a pair of capacitors (41) constituting a ?-type filter circuit C together with the coil (31) and to be electrically connected to the ground connection terminal (21), and a housing (11) capable of housing the coil (31) and the pair of capacitors (41). The capacitors are both arranged on one surface side of a virtual plane dividing the coil into two in an axial direction, and a conductive shielding plate (24B) to be grounded to the ground connection terminal (21) is interposed between the capacitors (41).Type: ApplicationFiled: July 1, 2014Publication date: January 8, 2015Inventor: Takeshi Aizawa
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Publication number: 20140378011Abstract: A terminal fitting (20) is crimped to an aluminum wire including a core (12) formed by putting a plurality of strands (11) together. The terminal fitting (20) includes a bottom plate (22) on which the core (12) is placed, and two barrel pieces (25L, 25R) connected to the bottom plate (22) and crimped to the core (12) so as to embrace the core (12) placed on the bottom plate (22). Overlapping portions (24L, 24R) are formed on tip parts of the respective barrel pieces (25L, 25R) by folding a plate material forming the barrel pieces (25L, 25R) to overlap layers of the plate material. The overlapping portions (24L, 24R) contact each other without intruding between the strands (11) when the respective barrel pieces (25L, 25R) are crimped to the core (12). The terminal fitting (20) eliminates breakage of the core (12) and is less affected by spring back.Type: ApplicationFiled: November 28, 2012Publication date: December 25, 2014Applicants: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Takeshi Aizawa, Satoshi Morikawa, Yoshihiro Uchiyama, Kazuaki Takeda, Takashi Tonosaki
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Publication number: 20140345936Abstract: A relay harness (30) connects a first harness (10) and a second harness (20). The relay harness (30) includes relay wires (31) and first and second housings (36, 37) connected to ends of the relay wires (31). Each relay wire (31) has a third conductor (32) surrounded by a third coating (33). The first housing (36) is configured to connect to a first connector (16) of the first harness (10). The second housing (37) is configured to connect to a second connector (26) of the second harness (20). A coating resin for the third insulation coatings (33) and a housing resin for the first and second housings (36, 37) are synthetic resins having a higher flame retardancy than a resin material for the first harness (10).Type: ApplicationFiled: May 23, 2014Publication date: November 27, 2014Applicants: AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.Inventor: Takeshi Aizawa
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Publication number: 20140349520Abstract: A connector includes ferrite cores (30A, 30B) with through holes (30H). A terminal fitting (20) has tab terminals (22A, 22B) inserted into the respective through holes (30H) to define input and output portions and a base (23) couples end parts of the respective tab terminals (22A, 22B) to each other. A connector housing (11) is molded to surround the ferrite cores (30A, 30B) and the terminal fitting (20) and is connectable to a mating connector housing. The ferrite cores (30A, 30B) include long sides LL and short sides SL. Clearances S are defined between side surfaces M located on the opposite short sides SL of the ferrite cores (30A, 30B) and facing surfaces of the connector housing (11), thereby separating the side surfaces M from the facing surfaces.Type: ApplicationFiled: May 21, 2014Publication date: November 27, 2014Applicants: AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventor: Takeshi Aizawa
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Publication number: 20140349501Abstract: A terminal (15) of a terminal-attached wire (10), in which the terminal (15) is connected to an end portion of a wire (11) and the end portion is sealed by a heat shrinkable tube (33), includes a terminal connecting portion (16) to be connected to a mating terminal, a wire connecting portion (18) to be connected to the end portion of the wire (11) and a coupling portion (22) coupling the terminal connecting portion (16) and the wire connecting portion (18) An opening end (33A) of the heat shrinkable tube (33) is mounted on the coupling portion (22), and a draining portion (32) for preventing adhering water from running down to the opening end (33A) is provided on a side closer to the terminal connecting portion (16) than the opening end (33A).Type: ApplicationFiled: November 28, 2012Publication date: November 27, 2014Applicant: AUTONETWORKS TECHNOLOGIES, LTDInventors: Takeshi Aizawa, Satoshi Morikawa, Yoshihiro Uchiyama, Kazuaki Takeda, Takashi Tonosaki
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Publication number: 20140335722Abstract: A relay terminal (10) made of copper or copper alloy and configured to join an aluminum wire (20) and a copper wire (30) by being electrically connected to the aluminum wire (20) and the copper wire (30) includes a first barrel portion (11) to be caulked and crimped to an aluminum core (21) of the aluminum wire (20) made of aluminum or aluminum alloy, which is a metal different from copper or copper alloy constituting the relay terminal (10), a second barrel portion (12) to be caulked and crimped to a copper core (31) of the copper wire (30), a bottom plate (13) configured to link the first barrel portion (11) and the second barrel portion (12), and a projecting portion (41) (water drainage portion (40)) provided on the bottom plate (13) and configured to restrict the intrusion of water from the second barrel portion (12) toward the first barrel portion (11).Type: ApplicationFiled: December 4, 2012Publication date: November 13, 2014Inventors: Takeshi Aizawa, Satoshi Morikawa, Yoshihiro Uchiyama, Kazuaki Takeda, Takashi Tonosaki
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Publication number: 20130280959Abstract: A wiring module attached to a plurality of electric cells having electrode terminals including positive electrodes and negative electrodes has a plurality of bus bars having pairs of through-holes respectively connected to the positive electrodes and the negative electrodes of the electric cells and bus bar insulating members each held by the adjacent bus bars. Of the plurality of bus bar insulating members, a first bus bar insulating member and a second bus bar insulating member are connected with each other by the bus bar.Type: ApplicationFiled: February 21, 2012Publication date: October 24, 2013Applicants: AUTONETWORKS TECHNOLOGIES, LTD, SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO WIRING SYSTEMS, LTD.Inventors: Shinichi Takase, Osamu Nakayama, Ryoya Okamoto, Mitsutoshi Morita, Kensaku Takata, Hiroki Hirai, Katsutoshi Saijo, Hiroomi Hiramitsu, Takeshi Aizawa
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Patent number: 7841911Abstract: A joint part which allows connection work to be easily performed and a wiring harness using the same. A joint part A has a housing (60) including a first joint portion (10) arranged to make a concurrent connection of ends of electric wires drawn from positive terminals of a plurality of igniters (3) and positive terminals of a plurality of injectors (4) and an end of an electric wire drawn from a positive terminal of a power supply (5) for the igniters (3) and the injectors (4), a second joint portion (20) arranged to make a concurrent connection of ends of electric wires drawn from negative terminals of the igniters (3), and a ground terminal (40) to which the first joint portion (10) is connected via a noise filter (50), and the second joint portion (20) is directly connected.Type: GrantFiled: November 24, 2006Date of Patent: November 30, 2010Assignees: Autonetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.Inventor: Takeshi Aizawa
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Publication number: 20090170356Abstract: A joint part which allows connection work to be easily performed and a wiring harness using the same. A joint part A has a housing 60 including a first joint portion 10 arranged to make a concurrent connection of ends of electric wires drawn from positive terminals of a plurality of igniters 3 and positive terminals of a plurality of injectors 4 and an end of an electric wire drawn from a positive terminal of a power supply 5 for the igniters 3 and the injectors 4, a second joint portion 20 arranged to make a concurrent connection of ends of electric wires drawn from negative terminals of the igniters 3, and a ground terminal 40 to which the first joint portion 10 is connected via a noise filter 50, and the second joint portion 20 is directly connected.Type: ApplicationFiled: November 24, 2006Publication date: July 2, 2009Applicants: AUTONETWORKS TECHNOLOGIES , LTD, SUMITOMO WIRING SYSTEMS ,LTD., SUMITOMO ELECTRIC INDUSTRIES , LTD.Inventor: Takeshi Aizawa
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Patent number: 7024982Abstract: A combination of piston and piston ring includes a piston having a piston ring groove in which at least the groove portion of the piston is made of steel, a piston ring made of cast iron and fitted into the piston ring groove, and a hard coat film formed to at least an outer peripheral sliding surface of the piston ring.Type: GrantFiled: August 26, 2003Date of Patent: April 11, 2006Assignee: Nippon Piston Ring Co., Ltd.Inventors: Takeshi Aizawa, Manabu Kishida, Makoto Kajiwara
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Publication number: 20040040436Abstract: A combination of piston and piston ring comprises a piston having a piston ring groove in which at least the groove portion of the piston is made of steel, a piston ring made of cast iron and fitted into the piston ring groove, and a hard coat film formed to at least an outer peripheral sliding surface of the piston ring.Type: ApplicationFiled: August 26, 2003Publication date: March 4, 2004Applicant: NIPPON PISTON RING CO., LTD.Inventors: Takeshi Aizawa, Manabu Kishida, Makoto Kajiwara