Patents by Inventor Yuuichi Nankou
Yuuichi Nankou 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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Publication number: 20040005822Abstract: A retainer mount hole (10) is open in a connector housing (1) from its bottom surface over to its opposite side surfaces, and a retainer (35) is pushed obliquely from a partial locking position to a full locking position. On the other hand, each terminal fitting (25) is provided with a projection (28) and a stabilizer (29) at the side of the projection (28). When the retainer (35) reaches the full locking position, both the projection (28) and the stabilizer (29) are engaged with the retainer (35). The projecting end of the rear end of the stabilizer (29) is pointed, thereby forming a biting portion (56). When a wire (31) connected with the terminal fitting (25) is pulled backward, the biting portion (56) bites in the retainer (35) to prevent the retainer (35) from returning.Type: ApplicationFiled: June 24, 2003Publication date: January 8, 2004Applicant: Sumitomo Wiring Systems, Ltd.Inventors: Shinya Fujita, Yuuichi Nankou, Yukihiro Fukatsu
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Patent number: 6666733Abstract: A terminal fitting (1) has a rectangular tubular box-shaped portion (5) with an engaging hole (9). An entrance preventing wall (10, 11) extends from an edge of the engaging hole (9) toward an opposed wall (8B) of the box-shaped portion (5). Thus the entrance preventing wall (10, 11) blocks entry of a male tab (3) of another terminal fitting through the engaging hole (9) and into the barrel the box-shaped portion (5).Type: GrantFiled: May 8, 2002Date of Patent: December 23, 2003Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Kozue Takatsuki, Yuuichi Nankou
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Publication number: 20030228798Abstract: A female terminal fitting (30) is provided for insertion into a female housing (10) from behind. A rear end of an outer wall (37) of the female terminal fitting (30) extending along widthwise direction is embossed to project out, thereby forming a locking projection (52) with a vertex (A) at its front end. The female terminal fitting (30) is inserted into the female housing (10) and a lock (13) in the female housing (10) engages the locking projection (52). The locking projection (52) is more outward than an imaginary triangular pyramid (X) formed by connecting the vertex (A) at the front end, a pair of base end points (B) at the rear edge, and an outward-projecting end point (C).Type: ApplicationFiled: May 21, 2003Publication date: December 11, 2003Applicant: Sumitomo Wiring Systems, Ltd.Inventors: Yuuichi Nankou, Hajime Kawase, Ryotaro Ishikawa, Naoya Kurimoto
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Publication number: 20030228795Abstract: A female housing (10) has cavities (11) into which female terminal fittings (30) are insertable from behind. A lock (13) projects forward from its base end and is restorable after being temporarily resiliently deformed by the female terminal fitting (30) being inserted, thereby engaging and locking the female terminal fitting (30) in the cavity (11). Maneuverable recesses (24) maneuverable by a disengagement jig (60) from front are provided at positions on the front surface of each lock (13) retracted from the locked terminal fitting (30) and within a width range of a locking surface of the lock (13) engageable with the terminal fitting (30) and located more toward the base end of the locking portion than the locking surface.Type: ApplicationFiled: February 11, 2003Publication date: December 11, 2003Applicant: Sumitomo Wiring Systems, Ltd.Inventors: Kiyofumi Ichida, Yukihiro Fukatsu, Toshikazu Sakurai, Shinya Fujita, Yuuichi Nankou, Hajime Kawase, Ryotaro Ishikawa, Naoya Kurimoto
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Publication number: 20030228797Abstract: Female terminal fittings (30) are insertable from behind into cavities (11) in a female housing (10). A slanted guide surface (22) is formed at the peripheral rear edge of each cavity (11) for guiding the female terminal fitting (30) into the cavity (11) and is slanted at an obtuse angle to an inserting direction of the female terminal fitting (30). A stabilizer-inserting groove (20) is formed in a surface of the cavity (11) and has an open rear end into which a stabilizer (47) of the female terminal fitting (30) is insertable. A preventing surface (27) is provided at the peripheral rear edge of the cavity (11) and abuts the stabilizer (47) when the female terminal fitting (30) is inserted in an improper posture. An angle of the preventing surface (27) to the inserting direction is less than an angle of the slanted guide surface (22).Type: ApplicationFiled: May 20, 2003Publication date: December 11, 2003Applicant: Sumitomo Wiring Systems, Ltd.Inventors: Ryotaro Ishikawa, Hajime Kawase, Yuuichi Nankou, Yukihiro Fukatsu, Naoya Kurimoto
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Publication number: 20030228793Abstract: A connector has a housing (10) with a cavity (11) and a resiliently deformable lock (13) in the cavity (11). The connector further has a terminal fitting (30) that can be inserted into the cavity (11). The insertion of the terminal fitting (30) deforms the lock (13). However, the lock (13) restores when the terminal fitting (30) is inserted completely, and locks the terminal fitting in the cavity (11). The terminal fitting (30) and the cavity (11) are formed with mutually engageable structures (53, 26) for preventing inclination of the terminal fitting (30) in the deforming direction of the lock (13).Type: ApplicationFiled: October 15, 2002Publication date: December 11, 2003Applicant: Sumitomo Wiring Systems, Ltd.Inventors: Kiyofumi Ichida, Yukihiro Fukatsu, Toshikazu Sakurai, Shinya Fujita, Yuuichi Nankou
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Publication number: 20030228796Abstract: A terminal fitting (30) is provided for insertion into a female housing (10) from behind. The terminal fitting (30) has an outer wall (37) with a cut-away portion (44) that permits entrance of a lock (13). Thus, the outer wall (37) is divided into a front portion and a rear portion. A locking projection (52) with which the lock (13) is engageable for locking is provided by causing a front cut end of the cut-away portion (44) to project outward. The lock (13) is engageable with a front cut end surface (44a) of the cut-away portion (44) including the locking projection (52).Type: ApplicationFiled: May 20, 2003Publication date: December 11, 2003Applicant: Sumitomo Wiring Systems, Ltd.Inventors: Yuuichi Nankou, Hajime Kawase, Ryotaro Ishikawa, Naoya Kurimoto
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Patent number: 6648685Abstract: The invention provides a front retainer used in common for both male and female electrical connectors. A female housing 30 and a male housing 40 are each provided with two large cavities 33L and 43L, these being opposite one another. In the female housing 30, the large cavity 33L on the right side is located below a central line XF, and the large cavity 33L on the left side is located above the central line XF. Bending spaces 36 of large lances 34L have recessed spaces 37 contiguous therewith either above or below. In the male housing 40, the large cavity 43L on the left side is located below a central line XM, and the large cavity 43L on the right side is located above the central line XM. Bending spaces 46 of large lances 44L have recessed spaces 47 contiguous therewith either above or below. A retainer 50 has female protruding members 55 and male protruding members 56 aligned above and below, these fitting respectively with the female bending spaces 36 and the male bending spaces 46.Type: GrantFiled: January 29, 2002Date of Patent: November 18, 2003Assignee: Sumitomo Wiring Systems, Ltd.Inventor: Yuuichi Nankou
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Publication number: 20030199211Abstract: A male terminal fitting (10) has a rectangular tubular main portion (12) and a tab (13) that are coupled via a coupling portion (14). The tab (13) is a substantially rectangular tube with a separation along one side. The coupling portion (14) has a bottom wall (14a), left and right side walls (14b, 14d) extend from the opposite sides of the bottom wall. A ceiling wall (14c) projects from the left side wall (14b) and is opposed to the bottom wall (14a). The ceiling wall (14c) and the right side wall (14d) are separated so that this separation is continuous with the separation (19) of the tab (13). The respective walls (14a, 14b, 14c, 14d) are unitary with the front end of the main portion (12).Type: ApplicationFiled: April 14, 2003Publication date: October 23, 2003Applicant: Sumitomo Wiring Systems, Ltd.Inventors: Yukihiro Fukatsu, Yuuichi Nankou
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Patent number: 6634907Abstract: The invention allows, in a connector having a moving plate provided at the anterior of a connector housing, a retainer to be attached to this connector housing from the anterior. A retainer attachment hole 17, for allowing a retainer 40 to be attached, is formed at an anterior end face of a connector housing 10. A window hole 36 is formed in a moving plate 30, at least a portion of the retainer 40 protruding towards the anterior from this window hole 36. Consequently, the retainer 40 can be pushed in, and other operations can be performed thereto, from the anterior of the moving plate 30. That is, the retainer 40 can be attached from the anterior to the connector housing 10.Type: GrantFiled: November 1, 2001Date of Patent: October 21, 2003Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Kozue Takatsuki, Hajime Kawase, Ryotaro Ishikawa, Yuuichi Nankou
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Publication number: 20030190841Abstract: A connector has a housing (40) with cavities (41) and resiliently deformable locks (43) that project into the cavities (41). Terminal fittings (10) are insertable into the cavities (41) and deform the locks (43) in a deforming direction (DD) that intersects the inserting and withdrawing directions (IWD) of the terminal fitting (10). The locks (43) then restore and locking surfaces (64) of the locks (43) lock the terminal fittings (10) in the cavities (41). Each locking surface (64) has an upper locking surface (58) furthest into the cavity (41) and a lower locking surface (61). The lower locking surface (61) is at an obtuse angle to the withdrawing direction of the terminal fitting (10), whereas an angle of the upper locking surface (58) to the withdrawing direction is smaller than the angle of the lower locking surface (61).Type: ApplicationFiled: October 15, 2002Publication date: October 9, 2003Applicant: Sumitomo Wiring Systems, Ltd.Inventors: Hideto Nakamura, Ryotaro Ishikawa, Hajime Kawase, Yuuichi Nankou, Naoya Kurimoto
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Publication number: 20030190847Abstract: A female terminal fitting (10) has a tubular main body (11) with front and rear ends and a bottom wall (13). A fold (20) is folded back from the front end of the bottom wall (13) and a resilient contact piece (18) extends back from the fold (20) to face the bottom wall (13). A bulge (23) on the resilient contact piece (18) includes a contact (25) for contacting a tab (T) of a male terminal fitting (M). The contact (25) is pressed by the tab (T) so that the resilient contact piece (18) is deformed with the fold (20) as a supporting point and an extending end (26) thereof contacts the bottom wall (13). The resilient contact piece (18) has a front narrowed portion (29) between the fold (20) and the contact (25) and a rear narrowed portion 30 between the contact (25) and the extending end (26).Type: ApplicationFiled: April 1, 2003Publication date: October 9, 2003Applicant: Sumitomo Wiring Systems, Ltd.Inventors: Yuuichi Nankou, Yukihiro Fukatsu, Hajime Kawase
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Publication number: 20030190842Abstract: A terminal fitting (10) has a main body (11) and stabilizer (17) for preventing upside-down insertion stands up from a surface of the main body (11). Elongated projections (50) extend from a surface of the main body (11) opposite the stabilizer (17). If the male terminal fitting (10) is inserted upside down, the elongated projections (50) contact a bottom wall (24B) at the entrance of a cavity (24) during the insertion to shift the male terminal fitting (10) transversely. Thus, the stabilizer (17) is caught deeply by a ceiling wall (24C) at the entrance. As a result, the male terminal fitting (10) is prevented from any further insertion.Type: ApplicationFiled: April 7, 2003Publication date: October 9, 2003Applicant: Sumitomo Wiring Systems, Ltd.Inventors: Yukihiro Fukatsu, Yuuichi Nankou, Hideto Nakamura, Ryotaro Ishikawa, Hajime Kawase
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Patent number: 6623313Abstract: A connector has a housing (10) with cavities (11) into which terminal fittings (30) are insertable. Locks (13) in the housing (10) deform during insertion of the terminal fittings (30) into the cavities (11), but then resiliently restore to lock the terminal fittings (30) in the cavities (11). Lowered portions (12a) of a bottom wall (12) of the housing (10) face the locks (12) and prevent the locks (13) from being excessively deformed. The bottom surface of each lock (13) has a convex arcuate surface (13c) and each lowered portion (12a) of the bottom wall (12) has a recess (12b) substantially conforming to the convex arcuate surface (13c) to accommodate the convex arcuate surface (13c) when the lock (13) deforms.Type: GrantFiled: October 23, 2002Date of Patent: September 23, 2003Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Kiyofumi Ichida, Yukihiro Fukatsu, Toshikazu Sakurai, Shinya Fujita, Yuuichi Nankou, Hajime Kawase, Ryotaro Ishikawa, Naoya Kurimoto
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Publication number: 20030176114Abstract: A connector has a housing (1) and retainer mount hole (8) is open in the housing (1) from its bottom surface over to its opposite side surfaces. Upon being moved from a partial locking position to a full locking position, A retainer (7) can be moved from a partial locking position to a full locking position and is guided obliquely forward by guides (22-25). Thus, the retainer (7) can be constantly guided to a specified position regardless of a variation in the fitted position of the retainer (7) in the retainer mount hole (8) along forward and backward directions. Since the retainer (7) and terminal fittings (4) can constantly have a proper positional relationship, a problem of a varying function of the retainer (7) to detect the insufficiently inserted states of the terminal fittings (4) due to a variation in the fitted position of the retainer (7) can be solved.Type: ApplicationFiled: December 10, 2002Publication date: September 18, 2003Applicant: Sumitomo Wiring Systems, Ltd.Inventors: Yuuichi Nankou, Ryotaro Ishikawa, Hajime Kawase, Toshikazu Sakurai, Yukihiro Fukatsu, Shinya Fujita
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Patent number: 6607407Abstract: A connector including a connector housing with a retainer attachment hole that receives and stabilizes a retainer as it is inserted into the connector housing. The retainer attachment hole extends into an anterior face of the connector housing. Male terminal fittings inserted into the connector housing are maintained therein by a removal preventing member of the retainer that is inserted into the retainer attachment hole. Guiding members formed on the retainer enter the retainer attachment hole before the removal preventing member enters therein. Consequently, the retainer is stabilized and maintained in position relative to the connector housing while it is being attached to the retainer attachment hole.Type: GrantFiled: November 1, 2001Date of Patent: August 19, 2003Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Kozue Takatsuki, Hajime Kawase, Ryotaro Ishikawa, Yuuichi Nankou
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Patent number: 6575787Abstract: The invention provides a waterproof connector in which a seal is maintained around a bolt without having to increase the number of components. A bolt 39 is passed through a through hole 36 of a bolt attachment member 35, this bolt 39 being passed from a countersunk hole 46 of a grommet 40 attached so as to cover a posterior face of a female housing 30. A nut 26 of a male housing 20 is fastened to this bolt 39, this fastening the two housings 20 and 30 together. A circular sealing member 50 is formed in a manner whereby it adjoins a central hole 47 of a base face 46A of the countersunk hole 46, a shaft 39A of the bolt 39 passing through this sealing member 50 in a manner whereby it fits tightly therewith. The sealing member 50 fits into a housing hole 53 of the bolt attachment member 35.Type: GrantFiled: November 30, 2001Date of Patent: June 10, 2003Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Ryotaro Ishikawa, Hajime Kawase, Yuuichi Nankou
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Patent number: 6565379Abstract: The invention provides a divided connector wherein, after a sub connector housing has been housed within a frame, the locked state of these two can be checked easily. A divided connector 1 has a sub connector housing 4 provided with terminal housing chambers 16 for housing male terminal fittings 3, and a frame 5 capable of housing the sub connector housing 4. Lock receiving members 14 protrude from left and right side faces 4A of the sub connector housing 4, and resilient locking members 13, these being capable of bending resiliently, are formed at inner wall faces 5A of the frame 5. When the two members 4 and 5 have reached a correct joining position, the resilient locking members 13 return resiliently to their original position, this causing spaces 15 to have a specified size which allows a detecting probe 20 to be inserted therein.Type: GrantFiled: December 19, 2001Date of Patent: May 20, 2003Assignee: Sumitomo Wiring Systems, Ltd.Inventor: Yuuichi Nankou
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Publication number: 20030068932Abstract: A terminal fitting (1) has a rectangular tubular box-shaped portion (5) with an engaging hole (9). An entrance preventing wall (10, 11) extends from an edge of the engaging hole (9) toward an opposed wall (8B) of the box-shaped portion (5). Thus the entrance preventing wall (10, 11) blocks entry of a male tab (3) of another terminal fitting through the engaging hole (9) and into the barrel the box-shaped portion (5).Type: ApplicationFiled: May 8, 2002Publication date: April 10, 2003Applicant: Sumitomo Wiring Systems, Ltd.Inventors: Kozue Takatsuki, Yuuichi Nankou
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Patent number: 6544054Abstract: The invention provides means for preventing arms of a lever from moving outwards and changing shape, without having to increase the size of a connector. Thin members 55 of arms 52 make contact with thick members 62 of protecting walls 60, thereby preventing the arms 52 from moving outwards. Since the portions of the protecting walls 60 that make contact with the arms 52 are thick, they do not change shape due to their receiving a pushing force from the arms 52. The arms 52 are thus reliably prevented from changing shape. Further, the thick members 62 are located so as to correspond to the thin members 55 of the arms 52. Consequently, the portions where the thick members 62 and the thin members 55 overlap do not become overly thick, and the connector does not increase in size.Type: GrantFiled: November 27, 2001Date of Patent: April 8, 2003Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Ryotaro Ishikawa, Yuuichi Nankou