Patents by Inventor Yasumitsu Makita
Yasumitsu Makita 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: 6971905Abstract: Female terminal fittings (15) crimped into connection with ends of wires (W) are accommodated in a female housing (10). The wires (W) drawn out from the female housing (10) are surrounded by a corrugate tube (30). The corrugate tube (30) is fixed to the female housing (10) via a cover (40). The cover (40) has a main body (41) and a lid (42) that can open and close the main body (41). The main body (41) and the lid (42) have rubber plates (55) to hold wires (W) resiliently therebetween as the lid (42) is closed.Type: GrantFiled: March 4, 2004Date of Patent: December 6, 2005Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Yasumitsu Makita, Yasushi Okayasu, Izumi Suzuki, Hideshi Tachi
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Publication number: 20040219821Abstract: Female terminal fittings (15) crimped into connection with ends of wires (W) are accommodated in a female housing (10). The wires (W) drawn out from the female housing (10) are surrounded by a corrugate tube (30). The corrugate tube (30) is fixed to the female housing (10) via a cover (40). The cover (40) has a main body (41) and a lid (42) that can open and close the main body (41). The main body (41) and the lid (42) have rubber plates (55) to hold wires (W) resiliently therebetween as the lid (42) is closed.Type: ApplicationFiled: March 4, 2004Publication date: November 4, 2004Applicant: Sumitomo Wiring Systems, Ltd.Inventors: Yasumitsu Makita, Yasushi Okayasu, Izumi Suzuki, Hideshi Tachi
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Patent number: 6478636Abstract: A female terminal fitting has a wall member which is not weakened as a result of cutting away bending regulating members therefrom, these bending regulating members preventing the excessive bending of a resilient contacting member. Anterior and posterior bending regulating members 26F and 26R are formed by cutting away a portion of a fitting member 11. These bending regulating members 26F and 26R prevent a resilient contacting member 20 firm bending excessively. The anterior bending regulating members 26R are formed on a base wall 13, and the posterior bending regulating members 26F are formed on side walls 14. These bending regulating members 26F and 26R are formed on differing walls. Consequently, compared to the case where both bending regulating members 26F and 26R are formed on a single wall, the opening area formed by cutting away the bending regulating members is smaller on each wall, and accordingly the strength of the walls is maintained.Type: GrantFiled: October 3, 2000Date of Patent: November 12, 2002Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Yasumitsu Makita, Kiyofumi Ichida, Hideshi Tachi
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Patent number: 6443764Abstract: A watertight connector is provided to prevent a bulging portion of a waterproof member from being pushed radially inwardly by the leading end of a mating housing. The connector has a male housing (10) with an engaging space (34) in which a skirt (11) of a female housing (20) can be accommodated. A bottom portion (34A) of the engaging space (34) has its radially outward portion deepened backwardly to form a recess (35). A projection (39) formed on a seal ring (36) is fitted in and held by the recess (35). Thus, a force of a slanted surface (11B) formed at a leading end (11A) of the skirt (11) to push a bulging portion (38) away radially inwardly is restricted by the presence of the recess (35), to prevent the bulging portion 38 being pushed radially inwardly. This can securely prevent shaking of the housings (10, 20) in their connected state and fine sliding abrasion between the terminal fittings (12, 22).Type: GrantFiled: May 9, 2001Date of Patent: September 3, 2002Assignee: Sumitomo Wiring Systems, Ltd.Inventor: Yasumitsu Makita
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Patent number: 6416344Abstract: A male housing (10) has a receptacle (12) that surrounds a tower (11) provided with cavities (13). A retainer (20) is mounted on the front of the tower (11). The bottom surface of the retainer (20) has a longitudinal groove (41) with a catch surface (42), and a jig insertion groove (40) is formed in a bulging portion (22) at the bottom end of the rear surface of the retainer (20). An upwardly sloped guide surface (51) is formed in the bottom surface of the receptacle (12) and aligns with the jig insertion groove (40). A jig (45) having a hook (47) at one end is provided to detach the retainer (20). The hook (47) of the jig (45) is inserted through the jig insertion groove (40) and moves up along the guide surface (51) to enter the longitudinal groove (41) and face the catch surface (42). The jig (45) then is pulled back to detach the retainer (20).Type: GrantFiled: May 15, 2001Date of Patent: July 9, 2002Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Yasushi Okayasu, Kiyofumi Ichida, Yasumitsu Makita
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Publication number: 20020016106Abstract: A male housing (10) has a receptacle (12) that surrounds a tower (11) provided with cavities (13). A retainer (20) is mounted on the front of the tower (11). The bottom surface of the retainer (20) has a longitudinal groove (41) with a catch surface (42), and a jig insertion groove (40) is formed in a bulging portion (22) at the bottom end of the rear surface of the retainer (20). An upwardly sloped guide surface (51) is formed in the bottom surface of the receptacle (12) and aligns with the jig insertion groove (40). A jig (45) having a hook (47) at one end is provided to detach the retainer (20). The hook (47) of the jig (45) is inserted through the jig insertion groove (40) and moves up along the guide surface (51) to enter the longitudinal groove (41) and face the catch surface (42). The jig (45) then is pulled back to detach the retainer (20).Type: ApplicationFiled: May 15, 2001Publication date: February 7, 2002Inventors: Yasushi Okayasu, Kiyofumi Ichida, Yasumitsu Makita
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Publication number: 20010041470Abstract: A watertight connector is provided to prevent a bulging portion of a waterproof member from being pushed radially inwardly by the leading end of a mating housing. The connector has a male housing (10) with an engaging space (34) in which a skirt (11) of a female housing (20) can be accommodated. A bottom portion (34A) of the engaging space (34) has its radially outward portion deepened backwardly to form a recess (35). A projection (39) formed on a seal ring (36) is fitted in and held by the recess (35). Thus, a force of a slanted surface (11B) formed at a leading end (11A) of the skirt (11) to push a bulging portion (38) away radially inwardly is restricted by the presence of the recess (35), to prevent the bulging portion 38 being pushed radially inwardly. This can securely prevent shaking of the housings (10, 20) in their connected state and fine sliding abrasion between the terminal fittings (12, 22).Type: ApplicationFiled: May 9, 2001Publication date: November 15, 2001Inventor: Yasumitsu Makita
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Patent number: 6290554Abstract: A female terminal fitting is provided to prevent a waterproof rubber plug from being damaged. The female terminal fitting has an opening 21 formed in the leading end of a box-shaped main portion 20 having angular portions at its four corners. Side wall extending pieces 40 and an upper wall extending piece 44 extending forward from side walls 26 and a ceiling plate 32a are turned inside at the opening 21. Thus rounded side edges 42 and an upper edge of the opening 21 are formed by the turned portions of the extending pieces 40, 44. Since the extending pieces 40, 44 are turned not at their bottom ends, but at their intermediate positions, four corner portions 43 at the leading ends of the angular portions 28 are retracted.Type: GrantFiled: March 15, 2000Date of Patent: September 18, 2001Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Yasumitsu Makita, Yukihiro Fukatsu
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Patent number: 6143987Abstract: An electric wire 10 is provided with a shielding layer 12 inside an outer sheath 11, three insulated wires 13 being provided therein. A correcting ring 46 is inserted between the outer sheath 11 and the shielding layer 12 of the electric wire 10, correcting the outer sheath 11 into a circular shape. A waterproofing ring 39 is attached tightly to an outer peripheral face of the outer sheath 11. In this way, even in the case where the shape of the outer sheath 11 of the electric wire 10 provided with a plurality of insulated wire cores 13 tends to be unstable, the electric wire 10 can be maintained in a specified shape by the correcting ring 46. Consequently the waterproofing ring 39 can fit stably and tightly to the outer peripheral face of the electric wire 10, thereby improving the waterproofing function.Type: GrantFiled: August 26, 1998Date of Patent: November 7, 2000Assignee: Sumitomo Wiring Systems, Ltd.Inventor: Yasumitsu Makita