Patents by Inventor Tomonari Itou
Tomonari Itou 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: 9559460Abstract: A lever-type connector has a female housing (F) with a tubular fitting (13) that includes a lever accommodating portion (15) for accommodating a lever (30) and an inner regulating wall (16) on a side opposite to the lever accommodating portion (15). A male housing (M) has a receptacle (43) with an outer regulating wall (44) facing the inner regulating wall (16), and has a supporting wall (45) facing the lever accommodating portion (15). A cam follower (47) and a regulating protrusion (48) are formed on an outer surface of the supporting wall (45) and can contact the lever (30) by being inserted into an opening (23) of the lever accommodating portion (15). Contact of the regulating protrusion (48) and the lever (30) regulates inclination of the housings (F, M) in the process of rotating the lever (30).Type: GrantFiled: November 16, 2015Date of Patent: January 31, 2017Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Shigeto Kataoka, Hideto Nakamura, Tomonari Itou, Takashi Matsuda
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Patent number: 9553393Abstract: A lever-type connector has tubular fitting (13) with an outer regulating wall (20) on a side opposite to a lever accommodating portion (16) across a terminal accommodating portion (10). A receptacle (41) includes an inner regulating wall (44) arranged along the outer regulating wall (20) and a facing wall (45) arranged along the lever accommodating portion (16) and facing the inner regulating wall (44). Regulating protrusions (48) are formed on an inner surface of the inner regulating wall (44). Posture inclination between a female housing (F) and a male housing (M) is regulated by contact of a tip outer edge (44E) of the inner regulating wall (44) and an inner surface of the outer regulating wall (20) and by the contact of a tip outer edge (10E) of the terminal accommodating portion (10) and the regulating protrusions (48).Type: GrantFiled: November 9, 2015Date of Patent: January 24, 2017Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Shigeto Kataoka, Hideto Nakamura, Tomonari Itou, Takashi Matsuda
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Publication number: 20160141789Abstract: A lever-type connector has tubular fitting (13) with an outer regulating wall (20) on a side opposite to a lever accommodating portion (16) across a terminal accommodating portion (10). A receptacle (41) includes an inner regulating wall (44) arranged along the outer regulating wall (20) and a facing wall (45) arranged along the lever accommodating portion (16) and facing the inner regulating wall (44). Regulating protrusions (48) are formed on an inner surface of the inner regulating wall (44). Posture inclination between a female housing (F) and a male housing (M) is regulated by contact of a tip outer edge (44E) of the inner regulating wall (44) and an inner surface of the outer regulating wall (20) and by the contact of a tip outer edge (10E) of the terminal accommodating portion (10) and the regulating protrusions (48).Type: ApplicationFiled: November 9, 2015Publication date: May 19, 2016Inventors: Shigeto Kataoka, Hideto Nakamura, Tomonari Itou, Takashi Matsuda
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Publication number: 20160141799Abstract: A lever-type connector has a female housing (F) with a tubular fitting (13) that includes a lever accommodating portion (15) for accommodating a lever (30) and an inner regulating wall (16) on a side opposite to the lever accommodating portion (15). A male housing (M) has a receptacle (43) with an outer regulating wall (44) facing the inner regulating wall (16), and has a supporting wall (45) facing the lever accommodating portion (15). A cam follower (47) and a regulating protrusion (48) are formed on an outer surface of the supporting wall (45) and can contact the lever (30) by being inserted into an opening (23) of the lever accommodating portion (15). Contact of the regulating protrusion (48) and the lever (30) regulates inclination of the housings (F, M) in the process of rotating the lever (30).Type: ApplicationFiled: November 16, 2015Publication date: May 19, 2016Inventors: Shigeto Kataoka, Hideto Nakamura, Tomonari Itou, Takashi Matsuda
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Publication number: 20140051276Abstract: A connector housing (20) has first and second cavities (23), (32) communicating with wire insertion holes (42) of a rubber plug (40) at opposite sides of the wire insertion holes (42) in an extending direction of the wire insertion holes. Terminal fittings (60) are inserted into the first cavities (23) from the second cavities (32) through the wire insertion holes (42). Each terminal fitting (60) has first and second projections (66), (67) spaced apart in the extending direction of the wire insertion holes (42). A distance between projecting ends of the first and second projections (66), (67) exceeds an extension length of the wire insertion holes (42). At least one of the first and second projections (66), (67) constantly contacts the inner peripheral surface of one of the first and second cavities (23), (32) when the terminal fitting (60) is inserted in the wire insertion hole (42).Type: ApplicationFiled: January 6, 2012Publication date: February 20, 2014Applicant: Sumitomo Wiring Systems, Ltd.Inventor: Tomonari Itou
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Patent number: 8653372Abstract: A wire harness is constructed by bundling a plurality of electric wires in which conductors are surrounded with insulating coatings respectively. The electric wires are constructed of aluminum electric wires in which the conductors consist of aluminum or aluminum alloy and copper electric wires in which the conductors consist of copper or copper alloy. A plurality of the aluminum electric wires is disposed so as to surround the copper electric wires having a lower shape retention property than the aluminum electric wires. The bundles electric wires include bent portions formed by bending or curving the bundled electric wires respectively.Type: GrantFiled: June 8, 2009Date of Patent: February 18, 2014Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Kazuhide Muneyasu, Minoru Yasuda, Tomonari Itou, Mitsugu Furutani
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Patent number: 8523619Abstract: A terminal fitting (10) is provided with a box-shaped main portion (11) capable of receiving a tab (61) of a mating terminal fitting (60) and a resiliently deformable resilient contact piece (12) arranged in the main portion (11) to be connected to the tab (61) inserted into the main portion (11). The resilient contact piece (12) includes a supporting portion (40) for resilient deformation in the main portion (11). The main portion (11) includes a base portion (18) facing the resilient contact piece (12) in a resilient deforming direction of the resilient contact piece (12). The base portion (18) includes a recess (46) formed within the thickness range thereof the base portion (18), and the supporting portion (40) is in contact with the bottom surface of the recess (46).Type: GrantFiled: September 23, 2011Date of Patent: September 3, 2013Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Tomonari Itou, Tomoki Okano
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Publication number: 20120094550Abstract: A terminal fitting (10) is provided with a box-shaped main portion (11) capable of receiving a tab (61) of a mating terminal fitting (60) and a resiliently deformable resilient contact piece (12) arranged in the main portion (11) to be connected to the tab (61) inserted into the main portion (11). The resilient contact piece (12) includes a supporting portion (40) for resilient deformation in the main portion (11). The main portion (11) includes a base portion (18) facing the resilient contact piece (12) in a resilient deforming direction of the resilient contact piece (12). The base portion (18) includes a recess (46) formed within the thickness range thereof the base portion (18), and the supporting portion (40) is in contact with the bottom surface of the recess (46).Type: ApplicationFiled: September 23, 2011Publication date: April 19, 2012Applicant: Sumitomo Wiring Systems, Ltd.Inventors: Tomonari Itou, Tomoki Okano
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Publication number: 20110120747Abstract: It is an object of the present invention to improve work efficiency. A wire harness (W, W1) is constructed by bundling a plurality of electric wires (16, 17, 116, and 117). At least one electric wire of a plurality of the electric wires (16, 17, 116, and 117) is an aluminum electric wire using aluminum or an aluminum alloy as a conductor thereof. A plurality of the aluminum electric wires (16, 17, 116, and 117) is so disposed as to surround other electric wires having lower shape retention properties than the aluminum electric wires (16, 17, 116, and 117).Type: ApplicationFiled: June 8, 2009Publication date: May 26, 2011Applicant: SUMITOMO WIRING SYSTEMS, LTD.Inventors: Kazuhide Muneyasu, Minoru Yasuda, Tomonari Itou, Mitsugu Furutani
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Patent number: 7938695Abstract: A terminal fitting (10) has a rectangular tube (11) for receiving a mating male tab (90). A resilient contact (18) is formed in the rectangular tube (11) and can resiliently contact the male tab (90). An excessive deformation preventing portion (41) is formed in the rectangular tube (11) for preventing deformation of the resilient contact (18) beyond a resiliency limit by contacting the resilient contact (18) being resiliently deformed. The terminal fitting (10) also has an extending portion (33) projecting out from an end edge of the rectangular tube portion (11) in a developed state before being bent and arranged at an outer side of the resilient contact (18) after being bent. The excessive deformation preventing portion (41) is formed by bending a part of the extending portion (33) into the interior of the rectangular tube (11).Type: GrantFiled: December 21, 2009Date of Patent: May 10, 2011Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Mitsugu Furutani, Tomonari Itou
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Publication number: 20100173539Abstract: A terminal fitting (10) has a rectangular tube (11) for receiving a mating male tab (90). A resilient contact (18) is formed in the rectangular tube (11) and can resiliently contact the male tab (90). An excessive deformation preventing portion (41) is formed in the rectangular tube (11) for preventing deformation of the resilient contact (18) beyond a resiliency limit by contacting the resilient contact (18) being resiliently deformed. The terminal fitting (10) also has an extending portion (33) projecting out from an end edge of the rectangular tube portion (11) in a developed state before being bent and arranged at an outer side of the resilient contact (18) after being bent. The excessive deformation preventing portion (41) is formed by bending a part of the extending portion (33) into the interior of the rectangular tube (11).Type: ApplicationFiled: December 21, 2009Publication date: July 8, 2010Applicant: SUMITOMO WIRING SYSTEMS, LTD.Inventors: Mitsugu Furutani, Tomonari Itou
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Publication number: 20100062660Abstract: A connector (10, 10A) is provided with a retainer (50) for retaining terminal fittings (80) by entering cavities (21) of a housing (20). The retainer (50) includes two arms (52) projecting substantially in parallel with a mounting direction into the housing (20) and a connecting portion (51) connecting base ends of the arms (52) with each other. Locks (55) are formed on the inner surfaces of the both arm portions (52) and are engageable with full locking portions (37) formed on outer surfaces of the housing (20). The retainer (50) is held at a full locking position by the engagement of the locks (55) with the full locking portions (37). Leading end surfaces of the arms (52) in a projecting direction serve as exposure surfaces (63) exposed to the outside when the retainer (50) is held at the full locking position.Type: ApplicationFiled: September 8, 2009Publication date: March 11, 2010Applicant: SUMITOMO WIRING SYSTEMS, LTD.Inventors: Tomonari Itou, Mitsugu Furutani
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Patent number: 7641502Abstract: Front shake preventing ribs (37) are provided at positions spread over the entire inner periphery of a front end of an inner housing (23) and contact a receptacle (14) of a male housing (10) to prevent shaking between an inner housing (23) and a receptacle (14). A wall (31) faces an opening edge portion of the receptacle (14) at a rear end of the inner housing (23) with respect to the connecting direction with the male connector (10). The receptacle (14) is formed with an annular rib (18) projecting in a connecting direction the connectors (10, 20) at a position to surround the inner housing (23) over the entire periphery. The wall (31) has an annular groove (32) that engages the annular rib (18) to prevent shaking between the connectors (10, 20).Type: GrantFiled: May 27, 2008Date of Patent: January 5, 2010Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Tomonari Itou, Takao Hata, Satoshi Morikawa
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Patent number: 7553186Abstract: A watertight connector has a rubber member (40) mounted on an inner housing (13), and this rubber member (40) includes a sealing portion (41) substantially in the form of a tube fittable on the outer circumferential surface of the inner housing (13) before a flange (23), legs (43) integral to the sealing portion (41) and shaped to be insertable backward through pass-through openings (26), and backlash preventing portions (44) integral to the legs (43), shaped to be engageable with the peripheral edges of the pass-through openings (26) from behind and arranged between the flange (23) and a facing wall (32).Type: GrantFiled: June 18, 2008Date of Patent: June 30, 2009Assignee: Sumitomo Wiring Systems Ltd.Inventors: Satoshi Morikawa, Takao Hata, Tomonari Itou
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Publication number: 20080318473Abstract: A watertight connector has a rubber member (40) mounted on an inner housing (13), and this rubber member (40) includes a sealing portion (41) substantially in the form of a tube fittable on the outer circumferential surface of the inner housing (13) before a flange (23), legs (43) integral to the sealing portion (41) and shaped to be insertable backward through pass-through openings (26), and backlash preventing portions (44) integral to the legs (43), shaped to be engageable with the peripheral edges of the pass-through openings (26) from behind and arranged between the flange (23) and a facing wall (32).Type: ApplicationFiled: June 18, 2008Publication date: December 25, 2008Applicant: SUMITOMO WIRING SYSTEMS, LTD.Inventors: Satoshi Morikawa, Takao Hata, Tomonari Itou
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Publication number: 20080299816Abstract: Front shake preventing ribs (37) are provided at positions spread over the entire inner periphery of a front end of an inner housing (23) and contact a receptacle (14) of a male housing (10) to prevent shaking between an inner housing (23) and a receptacle (14). A wall (31) faces an opening edge portion of the receptacle (14) at a rear end of the inner housing (23) with respect to the connecting direction with the male connector (10). The receptacle (14) is formed with an annular rib (18) projecting in a connecting direction the connectors (10, 20) at a position to surround the inner housing (23) over the entire periphery. The wall (31) has an annular groove (32) that engages the annular rib (18) to prevent shaking between the connectors (10, 20).Type: ApplicationFiled: May 27, 2008Publication date: December 4, 2008Applicant: SUMITOMO WIRING SYSTEMS, LTD.Inventors: Tomonari Itou, Takao Hata, Satoshi Morikawa
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Patent number: 7458838Abstract: When a male housing (10) and a female housing (20) are connected, projections (15) formed in the male housing (10) are pressed into fitting holes (36) of a seal (27) mounted on the front surface of a terminal accommodating portion (20A) after passing through projecting-portion insertion holes (32) formed in a cover wall (28) of the female housing (20). Shaking is prevented by shake preventing portions (16) projecting from the outer circumferential surfaces of the projections (15), thereby suppressing relative vibration of the housings (10, 20) and preventing fine sliding abrasion of male tabs (14) and female terminal fittings (40).Type: GrantFiled: December 28, 2007Date of Patent: December 2, 2008Assignee: Sumitomo Wiring Systems, Ltd.Inventor: Tomonari Itou
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Publication number: 20080160813Abstract: When a male housing (10) and a female housing (20) are connected, projections (15) formed in the male housing (10) are pressed into fitting holes (36) of a seal (27) mounted on the front surface of a terminal accommodating portion (20A) after passing through projecting-portion insertion holes (32) formed in a cover wall (28) of the female housing (20). Shaking is prevented by shake preventing portions (16) projecting from the outer circumferential surfaces of the projections (15), thereby suppressing relative vibration of the housings (10, 20) and preventing fine sliding abrasion of male tabs (14) and female terminal fittings (40).Type: ApplicationFiled: December 28, 2007Publication date: July 3, 2008Applicant: SUMITOMO WIRING SYSTEMS, LTD.Inventor: Tomonari Itou
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Patent number: 7311546Abstract: A holding cap (RC) is mounted on a terminal holding portion (51) of a female housing (5) from the front, and a tubular cover (52) is so formed outward of the terminal holding portion (51) to surround the holding cap (RC). First shake preventing portions (RC3) project radially out from the outer surface of the front end of the holding cap (RC) and second shake preventing portions (52a) project in at the rear end of the inner surface of the cover (52). When male and female connectors (1, 4) are connected with each other, the first and second shake preventing portions (RC3, 52a) both contact a receptacle (21) of a male housing (2) to reduce the shaking between both housings (2, 5) in transverse directions.Type: GrantFiled: September 13, 2006Date of Patent: December 25, 2007Assignee: Sumitomo Wiring Systems, Ltd.Inventor: Tomonari Itou
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Publication number: 20070059967Abstract: A holding cap (RC) is mounted on a terminal holding portion (51) of a female housing (5) from the front, and a tubular cover (52) is so formed outward of the terminal holding portion (51) to surround the holding cap (RC). First shake preventing portions (RC3) project radially out from the outer surface of the front end of the holding cap (RC) and second shake preventing portions (52a) project in at the rear end of the inner surface of the cover (52). When male and female connectors (1, 4) are connected with each other, the first and second shake preventing portions (RC3, 52a) both contact a receptacle (21) of a male housing (2) to reduce the shaking between both housings (2, 5) in transverse directions.Type: ApplicationFiled: September 13, 2006Publication date: March 15, 2007Applicant: Sumitomo Wiring Systems, Ltd.Inventor: Tomonari Itou