Patents by Inventor Takehiro Nakata
Takehiro Nakata 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: 8403714Abstract: It is aimed not to increase contact resistance between a wire and a wire crimping portion even upon being subjected to a thermal cycle. A gold plating layer is formed on a base metal (20) via a nickel plating layer (21) in a terminal contact portion (11) to be held in contact with a mating terminal. A tin plating layer (23) is formed on the base metal (20) without via the nickel plating layer (21) in a wire crimping portion (12) to be crimped and connected to a core (15) of an insulated wire (14).Type: GrantFiled: November 4, 2009Date of Patent: March 26, 2013Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Takehiro Nakata, Michiaki Okamoto, Takuya Inoue
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Publication number: 20110294368Abstract: It is aimed not to increase contact resistance between a wire and a wire crimping portion even upon being subjected to a thermal cycle. A gold plating layer is formed on a base metal (20) via a nickel plating layer (21) in a terminal contact portion (11) to be held in contact with a mating terminal. A tin plating layer (23) is formed on the base metal (20) without via the nickel plating layer (21) in a wire crimping portion (12) to be crimped and connected to a core (15) of an insulated wire (14).Type: ApplicationFiled: November 4, 2009Publication date: December 1, 2011Applicant: Sumitomo Wiring Systems, Ltd.Inventors: Takehiro Nakata, Michiaki Okamoto, Takuya Inoue
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Patent number: 7993170Abstract: A terminal (20) has a terminal main body (51) with a projection (55) to be engaged with a retainer (40). A wire barrel (21) to be crimped to a core (11) of a wire (10), an insulation barrel (23) to be crimped to an insulating coating (12) and a rubber plug barrel (24) to be crimped to a rubber plug (15) are successively arranged behind the main body (51). Bottom parts of the wire barrel (21) and the insulation barrel (23) are at low positions having substantially the same height. A front end of the wire barrel (23) is crimped flat to suppress bend-up of the core (11). The front end of the crimped wire barrel (21) is insertable to a position facing a projecting end of the retainer (40) when the terminal (20) is inserted to a proper position in a cavity (31) of a housing (30).Type: GrantFiled: April 5, 2010Date of Patent: August 9, 2011Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Takehiro Nakata, Kenji Okamura
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Publication number: 20100255734Abstract: A terminal (20) has a terminal main body (51) with a projection (55) to be engaged with a retainer (40). A wire barrel (21) to be crimped to a core (11) of a wire (10), an insulation barrel (23) to be crimped to an insulating coating (12) and a rubber plug barrel (24) to be crimped to a rubber plug (15) are successively arranged behind the main body (51). Bottom parts of the wire barrel (21) and the insulation barrel (23) are at low positions having substantially the same height. A front end of the wire barrel (23) is crimped flat to suppress bend-up of the core (11). The front end of the crimped wire barrel (21) is insertable to a position facing a projecting end of the retainer (40) when the terminal (20) is inserted to a proper position in a cavity (31) of a housing (30).Type: ApplicationFiled: April 5, 2010Publication date: October 7, 2010Applicant: SUMITOMO WIRING SYSTEMS, LTD.Inventors: Takehiro Nakata, Kenji Okamura
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Patent number: 7588454Abstract: Rear engageable surfaces (16B) of engageable portions (16) face communicating portions (37) and are inclined to produce forces for pushing another housing (11) forward in a connecting direction with one housing (21) upon receiving resilient restoring forces of leg portions (51) when a pair of connectors (10, 20) reach a properly connected state. A fitting portion (27) of the second connector (20) is formed with slanted surfaces (46) inclined to reduce the width of the fitting portion (27) toward the back side of the fitting portion (27). The slanted surfaces 46 and the first connector (10) are set to come into contact at a position where a clearance is defined before the first connector (10) in the connecting direction with the second connector (20).Type: GrantFiled: October 23, 2008Date of Patent: September 15, 2009Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Takehiro Nakata, Satoshi Morikawa, Michiaki Okamoto, Toshifumi Ichio
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Publication number: 20090111312Abstract: Rear engageable surfaces (16B) of engageable portions (16) face communicating portions (37) and are inclined to produce forces for pushing another housing (11) forward in a connecting direction with one housing (21) upon receiving resilient restoring forces of leg portions (51) when a pair of connectors (10, 20) reach a properly connected state. A fitting portion (27) of the second connector (20) is formed with slanted surfaces (46) inclined to reduce the width of the fitting portion (27) toward the back side of the fitting portion (27). The slanted surfaces 46 and the first connector (10) are set to come into contact at a position where a clearance is defined before the first connector (10) in the connecting direction with the second connector (20).Type: ApplicationFiled: October 23, 2008Publication date: April 30, 2009Applicant: SUMITOMO WIRING SYSTEMS, LTD.Inventors: Takehiro Nakata, Satoshi Morikawa, Michiaki Okamoto, Toshifumi Ichio
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Patent number: 7347744Abstract: Each of a plurality of auxiliary connector (10) includes an auxiliary housing (11), a seal (40) attached to the rear of the auxiliary housing (11), and a rear holder (50) mounted on the rear of the seal (40) to retain the seal (40). Auxiliary connectors (10) that are adjacent in an arranging direction are united by the rear holders (50). The united auxiliary connectors (10) are inserted into a frame (60) in the arranging direction through an insertion opening (60A) of the frame (60), and are retained in the frame (60) by engaging a lock (50B) on the last auxiliary connector (10A) and an interlocking portion (61) of the frame (60). The frame (60) has no partition walls between the auxiliary connectors (10). Thus, the connector is narrowed by a total thickness of the partition walls.Type: GrantFiled: June 20, 2006Date of Patent: March 25, 2008Assignee: Sumitomo Wiring Systems, LtdInventors: Masaaki Tabata, Takeshi Tsuji, Takehiro Nakata, Tomohiko Kobayashi, Satoshi Morikawa
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Patent number: 7214080Abstract: A female connector (F) is provided with an outer housing (10) in the form of a bottomed tube, a spring member (50) to be accommodated in the outer housing (10), and an inner housing (30) to be accommodated in the outer housing (10) to sandwich the spring member (50) between the inner housing (30) and a back wall (12) of the outer housing (10) and adapted to hold female terminal fittings (80). The inner housing (30) is pushed by a male connector (M) to move toward the back wall (12) and is floating-supported between the back wall (12) and the male connector (M) via the spring member (50) to move in connecting directions when the male connector (M) is fitted into the outer housing (10) to be locked therein. Upon an occurrence of vibration, the inner housing (30) is capable of moving while following movements of the outer housing (10).Type: GrantFiled: September 12, 2006Date of Patent: May 8, 2007Inventors: Toshifumi Ichio, Takehiro Nakata, Michiaki Okamoto
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Publication number: 20070059970Abstract: A female connector (F) is provided with an outer housing (10) in the form of a bottomed tube, a spring member (50) to be accommodated in the outer housing (10), and an inner housing (30) to be accommodated in the outer housing (10) to sandwich the spring member (50) between the inner housing (30) and a back wall (12) of the outer housing (10) and adapted to hold female terminal fittings (80). The inner housing (30) is pushed by a male connector (M) to move toward the back wall (12) and is floating-supported between the back wall (12) and the male connector (M) via the spring member (50) to move in connecting directions when the male connector (M) is fitted into the outer housing (10) to be locked therein. Upon an occurrence of vibration, the inner housing (30) is capable of moving while following movements of the outer housing (10).Type: ApplicationFiled: September 12, 2006Publication date: March 15, 2007Applicant: Sumitomo Wiring Systems, Ltd.Inventors: Toshifumi Ichio, Takehiro Nakata, Michiaki Okamoto
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Publication number: 20070004274Abstract: Each of a plurality of auxiliary connector (10) includes an auxiliary housing (11), a seal (40) attached to the rear of the auxiliary housing (11), and a rear holder (50) mounted on the rear of the seal (40) to retain the seal (40). Auxiliary connectors (10) that are adjacent in an arranging direction are united by the rear holders (50). The united auxiliary connectors (10) are inserted into a frame (60) in the arranging direction through an insertion opening (60A) of the frame (60), and are retained in the frame (60) by engaging a lock (50B) on the last auxiliary connector (10A) and an interlocking portion (61) of the frame (60). The frame (60) has no partition walls between the auxiliary connectors (10). Thus, the connector is narrowed by a total thickness of the partition walls.Type: ApplicationFiled: June 20, 2006Publication date: January 4, 2007Applicant: Sumitomo Wiring Systems, Ltd.Inventors: Masaaki Tabata, Takeshi Tsuji, Takehiro Nakata, Tomohiko Kobayashi, Satoshi Morikawa