Patents by Inventor Mitsunori Kitajima
Mitsunori Kitajima 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: 20200136285Abstract: A board connector includes terminal fittings (60) including board connecting portions (62), and a housing (10) made of synthetic resin containing a fibrous filler (80), disposed on a circuit board (90) and including a wall (18) rising in a vertical direction intersecting a surface of the circuit board (90). The wall (18) has a terminal mounting region (21) in which the terminal fittings (60) are mounted. The wall (18) includes elongated recesses (31) with a longitudinal direction aligned with the vertical direction and arranged side by side in a width direction in a distant region (22) located on a side of the terminal mounting region (21) distant from the circuit board (90).Type: ApplicationFiled: October 29, 2019Publication date: April 30, 2020Inventor: Mitsunori Kitajima
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Patent number: 10355404Abstract: A housing (12) of a board connector (10) to be connected to a circuit board (P) is disposed such that a connection surface to a mating connector (50) is exposed to outside through an opening (41) of a case (40) capable of accommodating the circuit board (P) inside. The housing (12) includes outer locking protrusions (31) for locking a peripheral edge part of the opening (41) of the case (40) from outside of the case (40) so that the board connector (10) will not displace into the case (40) due to forces exerted by a mating connector (50) during a connection operation.Type: GrantFiled: November 21, 2017Date of Patent: July 16, 2019Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Kentaro Hirai, Mitsunori Kitajima
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Patent number: 10224664Abstract: A board connector (10) has a tubular housing (20) that includes a back wall (25) with penetrating through holes (26). A terminal fitting (60) includes a tab (61) to be arranged to project into the housing (20) through the through hole (26), a press-fit portion (62) to be arranged inside the through hole (26) and a lead portion (63) to be arranged along a surface of a board (90). The press-fit portion (62) is inserted into the through hole (26) with an overlapping margin in a cross-section along a height direction in which the lead portion (63) faces the surface of the board (90). The tab (61) is inserted into the through hole (26) without any overlapping margin in the same cross-section.Type: GrantFiled: January 31, 2018Date of Patent: March 5, 2019Assignee: Sumitomo Wiring Systems, Ltd.Inventor: Mitsunori Kitajima
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Publication number: 20180248291Abstract: A board connector (10) has a tubular housing (20) that includes a back wall (25) with penetrating through holes (26). A terminal fitting (60) includes a tab (61) to be arranged to project into the housing (20) through the through hole (26), a press-fit portion (62) to be arranged inside the through hole (26) and a lead portion (63) to be arranged along a surface of a board (90). The press-fit portion (62) is inserted into the through hole (26) with an overlapping margin in a cross-section along a height direction in which the lead portion (63) faces the surface of the board (90). The tab (61) is inserted into the through hole (26) without any overlapping margin in the same cross-section.Type: ApplicationFiled: January 31, 2018Publication date: August 30, 2018Inventor: Mitsunori Kitajima
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Publication number: 20180166824Abstract: A housing (12) of a board connector (10) to be connected to a circuit board (P) is disposed such that a connection surface to a mating connector (50) is exposed to outside through an opening (41) of a case (40) capable of accommodating the circuit board (P) inside. The housing (12) includes outer locking protrusions (31) for locking a peripheral edge part of the opening (41) of the case (40) from outside of the case (40) so that the board connector (10) will not displace into the case (40) due to forces exerted by a mating connector (50) during a connection operation.Type: ApplicationFiled: November 21, 2017Publication date: June 14, 2018Inventors: Kentaro Hirai, Mitsunori Kitajima
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Patent number: 9431744Abstract: A retainer (10) is formed from a body (18) and extended portions (11). The body (18) includes two deflectable legs (20) and the legs (20) include locking claws (21) to be held onto a male connector housing (1) at a partial locking position and locking protrusions (22) to be locked to the male terminal fittings (5). A pushing surface (19) of the retainer (10) is extended in a front-back direction by the extended portions (11). A posture correcting portion (23) is formed between the legs (20) and fits into a cut recess (15) of a partition wall (14) to be locked therein when the retainer (10) is at a full locking position, thereby restricting an oblique posture of the retainer (10).Type: GrantFiled: August 1, 2014Date of Patent: August 30, 2016Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Shigeto Kataoka, Mitsunori Kitajima
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Patent number: 9306311Abstract: A connector includes a housing (10), terminal fittings (30) to be inserted into the housing (10), a retainer (20) configured to retain the terminal fittings (30) by being mounted into the housing (10) in a direction intersecting an inserting direction of the terminal fittings (30), resilient locks (25) formed on a base end of the retainer (20) in a mounting direction into the housing (10) and configured to hold the retainer (20) in a state mounted in the housing (10) by being locked to the housing (10). Slide-contact portions (28) formed on a tip side of the retainer (20) in the mounting direction into the housing (10) and extending parallel to the mounting direction of the retainer (20), and guides (16) formed in the housing, extending parallel to the mounting direction of the retainer (20) and to be brought into sliding contact with the slide-contact portions (28).Type: GrantFiled: July 2, 2014Date of Patent: April 5, 2016Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Mitsunori Kitajima, Shigeto Kataoka
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Patent number: 9257773Abstract: A female connector (F) includes a retainer (30) to be housed into a mounting hole (14) and selectively mounted, in a housing (10), at a partial locking position for allowing insertion of terminal fittings (50) and a full locking position for locking already inserted terminal fittings (50). A base (33) is at a rear end of the retainer (30) in a mounting direction into the housing (10) and is located outside a mounting hole (14) when the retainer (30) is at the partial locking position. Backlash eliminating portions (21, 22, 41, 42) are formed on the base (33) and in the housing (10) and are configured to restrict a relative displacement of the retainer (30) with respect to the housing (10) when the retainer (30) is at the partial locking position.Type: GrantFiled: July 7, 2014Date of Patent: February 9, 2016Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Mitsunori Kitajima, Shigeto Kataoka
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Patent number: 9231342Abstract: A lock arm (33) is arranged on the upper surface of a female connector housing (27), and lock-arm protection walls (37) stand at opposite widthwise sides of the lock arm (33). Detector protection walls (38) are provided behind the lock-arm protection walls (37), and first and second lock receiving portions (43, 44) are formed on the inner surfaces thereof. Two inwardly deflectable locking arms (56) are formed on a detector (39) and locked to the first or second lock receiving portions (43, 44) to restrict a backward movement when the detector (39) is at an initial position and a detecting position. The locking arms (56) are arranged utilizing dead spaces behind the lock-arm protection walls (37).Type: GrantFiled: July 22, 2014Date of Patent: January 5, 2016Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Shigeto Kataoka, Mitsunori Kitajima
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Patent number: 8998626Abstract: A female connector (F) is formed such that a block-shaped terminal accommodating portion (21) accommodating female terminal fittings (24) is surrounded by a substantially rectangular tubular fitting (35). A male connector (M) includes a rectangular tubular receptacle (11) to be fit into a clearance between the terminal accommodating portion (21) and the tubular fitting (35) and tabs (13) at the leading ends of male terminal fittings (12) are surrounded by the receptacle (11). Bulges (51, 52 and 53) are formed on four wall portions (37, 38 and 39) of the tubular fitting 35 and bulge outward of the tubular fitting (35) from an opening edge part at a front side of the tubular fitting (35).Type: GrantFiled: June 5, 2012Date of Patent: April 7, 2015Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Mitsunori Kitajima, Youjirou Hashimoto
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Publication number: 20150037998Abstract: A lock arm (33) is arranged on the upper surface of a female connector housing (27), and lock-arm protection walls (37) stand at opposite widthwise sides of the lock arm (33). Detector protection walls (38) are provided behind the lock-arm protection walls (37), and first and second lock receiving portions (43, 44) are formed on the inner surfaces thereof. Two inwardly deflectable locking arms (56) are formed on a detector (39) and locked to the first or second lock receiving portions (43, 44) to restrict a backward movement when the detector (39) is at an initial position and a detecting position. The locking arms (56) are arranged utilizing dead spaces behind the lock-arm protection walls (37).Type: ApplicationFiled: July 22, 2014Publication date: February 5, 2015Inventors: Shigeto Kataoka, Mitsunori Kitajima
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Publication number: 20150038022Abstract: A retainer (10) is formed from a body (18) and extended portions (11). The body (18) includes two deflectable legs (20) and the legs (20) include locking claws (21) to be held onto a male connector housing (1) at a partial locking position and locking protrusions (22) to be locked to the male terminal fittings (5). A pushing surface (19) of the retainer (10) is extended in a front-back direction by the extended portions (11). A posture correcting portion (23) is formed between the legs (20) and fits into a cut recess (15) of a partition wall (14) to be locked therein when the retainer (10) is at a full locking position, thereby restricting an oblique posture of the retainer (10).Type: ApplicationFiled: August 1, 2014Publication date: February 5, 2015Inventors: Shigeto Kataoka, Mitsunori Kitajima
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Publication number: 20150031250Abstract: A female connector (F) includes a retainer (30) to be housed into a mounting hole (14) and selectively mounted, in a housing (10), at a partial locking position for allowing insertion of terminal fittings (50) and a full locking position for locking already inserted terminal fittings (50). A base (33) is at a rear end of the retainer (30) in a mounting direction into the housing (10) and is located outside a mounting hole (14) when the retainer (30) is at the partial locking position. Backlash eliminating portions (21, 22, 41, 42) are formed on the base (33) and in the housing (10) and are configured to restrict a relative displacement of the retainer (30) with respect to the housing (10) when the retainer (30) is at the partial locking position.Type: ApplicationFiled: July 7, 2014Publication date: January 29, 2015Inventors: Mitsunori Kitajima, Shigeto Kataoka
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Publication number: 20150031230Abstract: A connector includes a housing (10), terminal fittings (30) to be inserted into the housing (10), a retainer (20) configured to retain the terminal fittings (30) by being mounted into the housing (10) in a direction intersecting an inserting direction of the terminal fittings (30), resilient locks (25) formed on a base end of the retainer (20) in a mounting direction into the housing (10) and configured to hold the retainer (20) in a state mounted in the housing (10) by being locked to the housing (10). Slide-contact portions (28) formed on a tip side of the retainer (20) in the mounting direction into the housing (10) and extending parallel to the mounting direction of the retainer (20), and guides (16) formed in the housing, extending parallel to the mounting direction of the retainer (20) and to be brought into sliding contact with the slide-contact portions (28).Type: ApplicationFiled: July 2, 2014Publication date: January 29, 2015Inventors: Mitsunori Kitajima, Shigeto Kataoka
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Patent number: 8894450Abstract: A connector (10) includes a retainer (30) made of synthetic resin for mounting in a housing (11) at a partial locking position for permitting the insertion of a terminal fitting (20) into the housing (11) and at a full locking position for retaining the inserted terminal fitting (20). Locks (16, 35) are formed on the housing (11) and the retainer (30) and are engageable to hold the retainer (30) at the partial locking position. A pressure receiving surface (15) is formed on the housing (11) and is configured to restrict a movement of the retainer (30) toward the full locking position by pressing the retainer (30) in directions intersecting a moving direction of the retainer (30) from the partial locking position to the full locking position when the retainer (30) is at the partial locking position.Type: GrantFiled: March 14, 2013Date of Patent: November 25, 2014Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Mitsunori Kitajima, Toshikazu Sakurai
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Patent number: 8777648Abstract: A connector includes a one-piece rubber plug (30) arranged to cover a rear surface (10R) of an inner housing (10) and has seal holes (31) aligned with cavities 12. An outer housing (20) has a tubular portion (21) surrounding the inner housing (10) and a rear wall (24) covering a rear surface (30R) of the one-piece rubber plug (30). The rear wall (24) has insertion holes (25) aligned with the seal holes (31). Locking holes (26A, 26B) are open on a rear surface (24R) of the rear wall (24), and locks (17A, 17B) on the inner housing (10) engage with the locking holes (26A, 26B) to lock the housings (10, 20) in an assembled state.Type: GrantFiled: May 31, 2012Date of Patent: July 15, 2014Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Mitsunori Kitajima, Youjirou Hashimoto, Kazuo Nakai
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Publication number: 20130273764Abstract: A connector (10) includes a retainer (30) made of synthetic resin for mounting in a housing (11) at a partial locking position for permitting the insertion of a terminal fitting (20) into the housing (11) and at a full locking position for retaining the inserted terminal fitting (20). Locks (16, 35) are formed on the housing (11) and the retainer (30) and are engageable to hold the retainer (30) at the partial locking position. A pressure receiving surface (15) is formed on the housing (11) and is configured to restrict a movement of the retainer (30) toward the full locking position by pressing the retainer (30) in directions intersecting a moving direction of the retainer (30) from the partial locking position to the full locking position when the retainer (30) is at the partial locking position.Type: ApplicationFiled: March 14, 2013Publication date: October 17, 2013Applicant: SUMITOMO WIRING SYSTEMS, LTD.Inventors: Mitsunori Kitajima, Toshikazu Sakurai
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Patent number: 8444444Abstract: A connector (A) is provided with a housing (10) made of synthetic resin, press-fit holes (13) formed through the housing (10) and each having a substantially rectangular cross-sectional shape, and terminal fittings (20) to be inserted into the press-fit holes (13). Each terminal fitting (20) has a first press-fit portion (25) with a substantially rectangular cross-section and brings two substantially parallel flat areas (26) into surface contact with the inner wall of the press-fit hole (13) in a fluid- or liquid-tight manner. The first press-fit portion (25) has first and second bulges (27A, 27B) that locally bulge in forward and backward directions parallel to the two flat areas over the entire areas in a width direction connecting the two flat areas (26) and press the inner wall of the press-fit hole (13) in a fluid- or liquid-tight manner.Type: GrantFiled: August 10, 2011Date of Patent: May 21, 2013Assignee: Sumitomo Wiring Systems, Ltd.Inventor: Mitsunori Kitajima
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Patent number: 8366466Abstract: An air hole (29) is formed to penetrate through a back wall (23) of a receptacle (22). Leading end portions (61) of male terminal fittings (60) are inserted into an inner portion (28) of a tube (27) and the air hole (29) communicates with the inner portion (28). If a female connector is connected in a posture inclined from a proper connecting posture, the tube (27) interferes with the female connector to prevent any further connecting operation. The tube (27) surrounds a plurality of male terminal fittings (60) together. A wall (31) for partially closing openings of the inner portion (28) is formed at a leading end portion of the tube (27).Type: GrantFiled: August 30, 2011Date of Patent: February 5, 2013Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Youjirou Hashimoto, Mitsunori Kitajima
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Publication number: 20120329299Abstract: A female connector (F) is formed such that a block-shaped terminal accommodating portion (21) accommodating female terminal fittings (24) is surrounded by a substantially rectangular tubular fitting (35). A male connector (M) includes a rectangular tubular receptacle (11) to be fit into a clearance between the terminal accommodating portion (21) and the tubular fitting (35) and tabs (13) at the leading ends of male terminal fittings (12) are surrounded by the receptacle (11). Bulges (51, 52 and 53) are formed on four wall portions (37, 38 and 39) of the tubular fitting 35 and bulge outward of the tubular fitting (35) from an opening edge part at a front side of the tubular fitting (35).Type: ApplicationFiled: June 5, 2012Publication date: December 27, 2012Applicant: SUMITOMO WIRING SYSTEMS, LTD.Inventors: Mitsunori Kitajima, Youjirou Hashimoto