Patents by Inventor Kazuo Nakai
Kazuo Nakai 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: 20250233359Abstract: A second housing includes a receptacle serving as a housing body and a lock portion projecting on an upper surface of the housing body. The first housing includes a base portion and a lock body portion extending from the base portion and deflectable and deformable with the base portion as a fulcrum. The lock portion has a locking surface facing in a direction opposite to a connection direction of the second housing to the first housing. The lock body portion includes a locking portion on a tip part in an extension direction from the base portion, the locking portion facing the locking surface and being lockable to the locking surface. A rotation center part is set above a lock peak serving as an uppermost part of the locking surface of the lock portion.Type: ApplicationFiled: January 10, 2023Publication date: July 17, 2025Inventor: Kazuo NAKAI
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Publication number: 20250149822Abstract: A connector device (10) includes a connector (20) and a mating connector (30) connectable to the connector (20) from front. The mating connector (30) includes a tubular receptacle (33). The connector (20) includes a housing (40) having a housing body (41) to be fit into the receptacle (33), and a sealing member (60) to be held in close contact with the receptacle (33) by being mounted on an outer peripheral surface of the housing body (41). A protrusion (90) for filling a gap between the housing body (41) and the receptacle (33) is provided on the outer peripheral surface of the housing body (41). The protrusion (90) can face and contact the sealing member (60) from a front side.Type: ApplicationFiled: January 9, 2023Publication date: May 8, 2025Inventor: Kazuo NAKAI
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Patent number: 12206206Abstract: Provided is a wire cover-equipped connector that can prevent a wire from being caught on a wire cover when the wire cover is being attached. The wire cover-equipped connector includes: a housing including a wire lead-out surface; and a wire cover configured to be disposed on the housing so as to cover the wire lead-out surface. The housing includes a slide-receiving portion at a position in line with the wire lead-out surface, the wire cover includes a slide portion configured to slide against the slide-receiving portion, and a wire escape space formed so as to be separated from the slide-receiving portion, and the slide portion includes, in a front end thereof in a sliding direction of sliding against the slide-receiving portion, a wire guiding portion inclined in a direction opposite to the sliding direction while extending toward the wire escape space.Type: GrantFiled: March 2, 2021Date of Patent: January 21, 2025Assignee: SUMITOMO WIRING SYSTEMS, LTD.Inventors: Daisuke Kataoka, Kazuo Nakai
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Patent number: 11909142Abstract: A connector 10 is provided with a male terminal 40 including a tab 42, a housing 20 for supporting the male terminal 40, a sealing space 32 provided around the tab 42 in the housing 20, a sealing portion 90 to be accommodated into the sealing space 32 while contacting the tab 42, and a pressing portion 100 for setting the sealing portion 90 in a compressed state by being located in the sealing space 32.Type: GrantFiled: January 12, 2022Date of Patent: February 20, 2024Assignee: SUMITOMO WIRING SYSTEMS, LTD.Inventor: Kazuo Nakai
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Patent number: 11881648Abstract: A connector 10, 10A includes a male terminal 50, 50A including a tab 52, 52A, a female terminal 70 connectable to the tab 52, 52A, and a housing 20, 20A. The housing 20, 20A includes a holding portion 22 for holding the male terminal 50, 50A and a cavity 23 for accommodating the female terminal 70. One end of the cavity 23 is closed by a wall surface 32 of the holding portion 22. The tab 52, 52A is arranged to project into the cavity 23 from the wall surface 32 of the holding portion 22.Type: GrantFiled: January 12, 2022Date of Patent: January 23, 2024Assignee: SUMITOMO WIRING SYSTEMS, LTD.Inventor: Kazuo Nakai
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Publication number: 20230216242Abstract: The present invention provides a lever-type connector capable of preventing the position of a slider from being displaced by a gear of a wire cover coming into contact with rack teeth of a slider when the wire cover is attached to a housing. A lever-type connector (C) is provided with: a housing (10); a slider (20) that is provided to be movable in a first direction with respect to the housing (10), and has a plurality of rack teeth (22) arranged in the first direction; a wire cover (30) that is installed on the housing (10), and covers a wire draw-out surface (12) of the housing (10); and a lever (40) that is rotatably installed in the wire cover (30), has a gear (44) engaging with the rack teeth (22), and moves the slider (20). The housing (10) has a fulcrum part (50) that rotatably supports the wire cover (30), and a positioning part (60) that causes the gear (44) to face a position where the gear is engabeable with the rack teeth (22) by hitting against the wire cover (30).Type: ApplicationFiled: March 2, 2021Publication date: July 6, 2023Inventors: Daisuke KATAOKA, Kazuo NAKAI
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Publication number: 20230138081Abstract: Provided is a wire cover-equipped connector that can prevent a wire from being caught on a wire cover when the wire cover is being attached. The wire cover-equipped connector includes: a housing including a wire lead-out surface; and a wire cover configured to be disposed on the housing so as to cover the wire lead-out surface. The housing includes a slide-receiving portion at a position in line with the wire lead-out surface, the wire cover includes a slide portion configured to slide against the slide-receiving portion, and a wire escape space formed so as to be separated from the slide-receiving portion, and the slide portion includes, in a front end thereof in a sliding direction of sliding against the slide-receiving portion, a wire guiding portion inclined in a direction opposite to the sliding direction while extending toward the wire escape space.Type: ApplicationFiled: March 2, 2021Publication date: May 4, 2023Inventors: Daisuke KATAOKA, Kazuo NAKAI
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Patent number: 11462857Abstract: A first housing 10 is arranged in a mounting hole 91 of a panel 90. The first housing 10 includes a base portion 27, a coupling portion 28 located forward of the base portion 27, a linking portion 29 linking between the base portion 27 and the coupling portion 28, and a lock arm 30 projecting rearward toward the base portion 27 from the coupling portion 28. The lock arm 30 has a lock surface 34 to be arranged to contact a front surface of the panel 90. The lock arm 30 and the linking portion 29 are both shaped to be resiliently deformable.Type: GrantFiled: September 15, 2020Date of Patent: October 4, 2022Assignee: SUMITOMO WIRING SYSTEMS, LTD.Inventors: Yukihiro Fukatsu, Asuka Hanji, Kazuo Nakai, Masahiro Nakashima
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Publication number: 20220239029Abstract: A connector 10, 10A includes a male terminal 50, 50A including a tab 52, 52A, a female terminal 70 connectable to the tab 52, 52A, and a housing 20, 20A. The housing 20, 20A includes a holding portion 22 for holding the male terminal 50, 50A and a cavity 23 for accommodating the female terminal 70. One end of the cavity 23 is closed by a wall surface 32 of the holding portion 22. The tab 52, 52A is arranged to project into the cavity 23 from the wall surface 32 of the holding portion 22.Type: ApplicationFiled: January 12, 2022Publication date: July 28, 2022Inventor: Kazuo NAKAI
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Publication number: 20220239032Abstract: A connector 10 is provided with a male terminal 40 including a tab 42, a housing 20 for supporting the male terminal 40, a sealing space 32 provided around the tab 42 in the housing 20, a sealing portion 90 to be accommodated into the sealing space 32 while contacting the tab 42, and a pressing portion 100 for setting the sealing portion 90 in a compressed state by being located in the sealing space 32.Type: ApplicationFiled: January 12, 2022Publication date: July 28, 2022Inventor: Kazuo NAKAI
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Patent number: 11264760Abstract: A first housing 10 includes a resiliently deformable lock arm 30. The lock arm 30 has a lock surface 34 to be arranged to contact a front surface of a panel 90 with the first housing 10 arranged in a mounting hole 91 of the panel 90. A second housing 40 includes a space portion 53 into which an arm plate 72 of a lever 70 is arranged, leg portions 57 rising from the side of an outer wall 52 of the space portion 53 while facing each other, and a bridge portion 58 extending between the leg portions 57 facing each other. The bridge portion 58 includes a releasing portion 65 capable of releasing a state where the lock surface 34 is in contact with the front surface of the panel 90.Type: GrantFiled: September 10, 2020Date of Patent: March 1, 2022Assignee: SUMITOMO WIRING SYSTEMS, LTD.Inventors: Yukihiro Fukatsu, Asuka Hanji, Kazuo Nakai, Masahiro Nakashima
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Publication number: 20210098937Abstract: A first housing 10 includes a resiliently deformable lock arm 30. The lock arm 30 has a lock surface 34 to be arranged to contact a front surface of a panel 90 with the first housing 10 arranged in a mounting hole 91 of the panel 90. A second housing 40 includes a space portion 53 into which an arm plate 72 of a lever 70 is arranged, leg portions 57 rising from the side of an outer wall 52 of the space portion 53 while facing each other, and a bridge portion 58 extending between the leg portions 57 facing each other. The bridge portion 58 includes a releasing portion 65 capable of releasing a state where the lock surface 34 is in contact with the front surface of the panel 90.Type: ApplicationFiled: September 10, 2020Publication date: April 1, 2021Inventors: Yukihiro FUKATSU, Asuka HANJI, Kazuo NAKAI, Masahiro NAKASHIMA
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Publication number: 20210098938Abstract: A first housing 10 is arranged in a mounting hole 91 of a panel 90. The first housing 10 includes a base portion 27, a coupling portion 28 located forward of the base portion 27, a linking portion 29 linking between the base portion 27 and the coupling portion 28, and a lock arm 30 projecting rearward toward the base portion 27 from the coupling portion 28. The lock arm 30 has a lock surface 34 to be arranged to contact a front surface of the panel 90. The lock arm 30 and the linking portion 29 are both shaped to be resiliently deformable.Type: ApplicationFiled: September 15, 2020Publication date: April 1, 2021Inventors: Yukihiro FUKATSU, Asuka HANJI, Kazuo NAKAI, Masahiro NAKASHIMA
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Patent number: 10944204Abstract: It is aimed to provide a connector capable of ensuring good sealing. A connector (10) includes a female housing (20) having a female-side sealing surface (22), a male housing (30) having a receptacle (62) into which the female housing (20) is fit, a sealing ring (40) disposed in the receptacle (62) and to be held in close contact with the sealing surface (40) when the female housing (20) and the male housing (30) are connected, and a protecting member (50) mounted on the female housing (20) to cover the female-side sealing surface (22).Type: GrantFiled: March 9, 2020Date of Patent: March 9, 2021Inventor: Kazuo Nakai
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Patent number: 10804639Abstract: A connector 20 to be fit into an open receptacle 13 of a male connector 10 includes a terminal 25 connected to an end part of a wire 22, and a housing 40 for holding the terminal 25. The housing 40 includes a lead-out portion 54 for leading out the wire 22 connected to the terminal 25 to outside, a protruding portion 46 protruding outward to face a tip part of the receptacle 13, an external fitting portion 50 projecting from the protruding portion 46 toward the receptacle 13 to be externally fit to the tip part of the receptacle 13 and expose an outer surface of a base end side of the receptacle 13, and a reinforcing rib 60A, 60B connected to the lead-out portion 54 and the protruding portion 46.Type: GrantFiled: November 22, 2017Date of Patent: October 13, 2020Assignees: AutoNetwork Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.Inventors: Takeshi Masuda, Hiromu Ootani, Takehide Teresawa, Youjirou Hashimoto, Kazuo Nakai
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Publication number: 20200295501Abstract: It is aimed to provide a connector capable of ensuring good sealing. A connector (10) includes a female housing (20) having a female-side sealing surface (22), a male housing (30) having a receptacle (62) into which the female housing (20) is fit, a sealing ring (40) disposed in the receptacle (62) and to be held in close contact with the sealing surface (40) when the female housing (20) and the male housing (30) are connected, and a protecting member (50) mounted on the female housing (20) to cover the female-side sealing surface (22).Type: ApplicationFiled: March 9, 2020Publication date: September 17, 2020Inventor: Kazuo Nakai
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Publication number: 20200099160Abstract: A connector 20 to be fit into an open receptacle 13 of a male connector 10 includes a terminal 25 connected to an end part of a wire 22, and a housing 40 for holding the terminal 25. The housing 40 includes a lead-out portion 54 for leading out the wire 22 connected to the terminal 25 to outside, a protruding portion 46 protruding outward to face a tip part of the receptacle 13, an external fitting portion 50 projecting from the protruding portion 46 toward the receptacle 13 to be externally fit to the tip part of the receptacle 13 and expose an outer surface of a base end side of the receptacle 13, and a reinforcing rib 60A, 60B connected to the lead-out portion 54 and the protruding portion 46.Type: ApplicationFiled: November 22, 2017Publication date: March 26, 2020Inventors: Takeshi Masuda, Hiromu Ootani, Takehide Teresawa, Youjirou Hashimoto, Kazuo Nakai
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Patent number: 10498078Abstract: A lever-type connector (A) includes a lever (20) to be rotated from an initial position to a connection position in connecting the lever-type connector (A) to a mating connector (B) and located at a retracted position not corresponding to terminal insertion openings (16) in inserting terminal fittings (13) into terminal accommodation chambers (12), a separation restricting lock arm (31) formed on the connector body (10), capable of locking the lever (20) at the connection position in a state where rotation toward the initial position is restricted and configured to unlock the lever (20) by being resiliently deformed, and an excessive rotation restricting lock arm (35) formed on the connector body, capable of locking the lever (20) at the connection position in a state where rotation toward the retracted position is restricted and configured to unlock the lever (20) by being resiliently deformed.Type: GrantFiled: March 6, 2019Date of Patent: December 3, 2019Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Masakazu Suzuki, Kazuo Nakai
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Publication number: 20190296484Abstract: A lever-type connector (A) includes a lever (20) to be rotated from an initial position to a connection position in connecting the lever-type connector (A) to a mating connector (B) and located at a retracted position not corresponding to terminal insertion openings (16) in inserting terminal fittings (13) into terminal accommodation chambers (12), a separation restricting lock arm (31) formed on the connector body (10), capable of locking the lever (20) at the connection position in a state where rotation toward the initial position is restricted and configured to unlock the lever (20) by being resiliently deformed, and an excessive rotation restricting lock arm (35) formed on the connector body, capable of locking the lever (20) at the connection position in a state where rotation toward the retracted position is restricted and configured to unlock the lever (20) by being resiliently deformed.Type: ApplicationFiled: March 6, 2019Publication date: September 26, 2019Inventors: Masakazu Suzuki, Kazuo Nakai
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Publication number: 20190260156Abstract: A connector 20 includes a terminal 23 connected to terminal end of a wire 22, an inner housing 40 in which the terminal 23 is housed, an outer housing 60 arranged without being in contact with the inner housing 40, and vibration absorbing rubbers 70A and 70B sandwiched between the inner housing 40 and the outer housing 60 when the two housings are fitted to each other. The vibration absorbing rubbers 70A and 70B have a durometer hardness A in a range from 20 to 70.Type: ApplicationFiled: July 5, 2017Publication date: August 22, 2019Inventors: Takehide Terasawa, Hiromu Ootani, Takeshi Masuda, Youjirou Hashimoto, Kazuo Nakai