Patents by Inventor Toshikazu Sakurai
Toshikazu Sakurai 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: 20230111250Abstract: A press-fit terminal includes a press-fit portion including two contact pieces facing each other with an eyehole interposed therebetween, where each of the two contact pieces includes a parallel portion, a front spring portion extending from the parallel portion in a direction in which the press-fit portion is inserted, and a rear spring portion extending from the parallel portion in a direction opposite to the direction in which the press-fit portion is inserted, the two parallel portions being parallel to each other, a thickness of the press-fit portion is 0.3 mm or more and 0.5 mm or less, when a length of the eyehole is Le [mm] and a length of the parallel portion is Ls [mm], Ls/Le is 0.57 or more and 0.65 or less, and when front spring strength is G1 [mm3] and rear spring strength is G2 [mm3], G1/G2 is 0.55 or more and 1.45 or less.Type: ApplicationFiled: March 10, 2021Publication date: April 13, 2023Applicants: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Takuya YAMANAKA, Tetsuya ITO, Toshikazu SAKURAI, Takashi TONOSAKI, Tetsuya SHINOZAKI, Shigeki SHIMADA
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Patent number: 11509097Abstract: A connector includes a first housing and a second housing having facing surfaces facing each other. One of the first and second housings includes a receiving portion open forward in a front end part and the other includes a rotating portion to be arranged in the receiving portion in the front end part. The second housing is rotated with respect to the first housing about an axis passing through the rotating portion in the receiving portion along a width direction and is coupled to the first housing. The first housing includes a lock receiving portion open forward and rearward in the front end part. The second housing includes a locking portion projecting toward the first housing and to be fit to the lock receiving portion in the front end part. The locking portion includes a wide restricting portion, and the lock receiving portion includes a wide restriction receiving portion.Type: GrantFiled: August 23, 2021Date of Patent: November 22, 2022Assignee: SUMITOMO WIRING SYSTEMS, LTD.Inventors: Yukihiro Fukatsu, Toshikazu Sakurai, Shinji Iihoshi, Takeshi Suzuki
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Publication number: 20220247106Abstract: It is aimed to prevent the damage of terminal fittings. A connector device (A) is provided with a case formed with an opening portion in a front surface and having an open lower surface, and a board connector including L-shaped terminal fittings and a housing to be mounted into the opening portion. The terminal fitting includes a penetrating portion extending in a front-rear direction and a board connecting portion extending downward from a rear end of the penetrating portion and to be accommodated into the case. The housing includes a terminal holding member for holding the penetrating portions penetrating therethrough, the terminal holding member being mounted into the opening portion from behind, and a protecting member separate from the terminal holding member, the protecting member surrounding front end parts of the penetrating portions by being mounted into the opening portion from front.Type: ApplicationFiled: June 2, 2020Publication date: August 4, 2022Inventors: Kenji MAKINO, Toshikazu SAKURAI
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Publication number: 20220069524Abstract: A connector includes a first housing and a second housing having facing surfaces facing each other. One of the first and second housings includes a receiving portion open forward in a front end part and the other includes a rotating portion to be arranged in the receiving portion in the front end part. The second housing is rotated with respect to the first housing about an axis passing through the rotating portion in the receiving portion along a width direction and is coupled to the first housing. The first housing includes a lock receiving portion open forward and rearward in the front end part. The second housing includes a locking portion projecting toward the first housing and to be fit to the lock receiving portion in the front end part. The locking portion includes a wide restricting portion, and the lock receiving portion includes a wide restriction receiving portion.Type: ApplicationFiled: August 23, 2021Publication date: March 3, 2022Inventors: Yukihiro FUKATSU, Toshikazu SAKURAI, Shinji IIHOSHI, Takeshi SUZUKI
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Patent number: 10971852Abstract: It is aimed to provide a joint connector capable of holding a plurality of housings and a busbar without complicating the entire configuration. A joint connector includes a first housing (10) configured to accommodate first terminals (60), a second housing (40) configured to accommodate second terminals (70) and be united with the first housing (10), and a busbar (80) having first tabs (84) to be connected to the first terminals (60) and second tabs (85) to be connected to the second terminals (70). The busbar (80) includes a coupling portion (83) coupling the side of the first tabs 84 and the side of the second tabs (85), first fixing portions (86) to be fixed to the first housing (10) and second fixing portions (87) to be fixed to the second housing (40).Type: GrantFiled: December 20, 2019Date of Patent: April 6, 2021Inventors: Yukihiro Fukatsu, Toshikazu Sakurai
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Patent number: 10944224Abstract: A joint connector includes a plurality of target terminals (40), a joint terminal (10) connected to the respective target terminals (40) for short-circuiting the respective target terminals (40), and a housing (60) for accommodating the respective target terminals (40). The target terminal (40) includes a coupling portion (44) located between a body portion (42) and a crimping portion (43) to couple the both and having a concave cross-section. The joint terminal (10) includes a base portion (11) and a plurality of contact pieces (12) projecting from the base portion (11) and moves to an entrance position where the respective contact pieces (12) are inserted into the coupling portions (44) of the respective target terminals (40) after the respective target terminals 40 are accommodated into the housing (60). Each contact piece (42) resiliently contacts an inner surface of the corresponding coupling portion 44 at the entrance position.Type: GrantFiled: January 9, 2020Date of Patent: March 9, 2021Inventors: Yukihiro Fukatsu, Toshikazu Sakurai
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Patent number: 10840659Abstract: A housing (10) has a mounting groove (12) between a first cavity (11A) in a first stage and second cavities (11B) in a second stage. A first communication portion (13A) allows communication between the mounting groove (12) and the first cavity (11A), Second communication portions (13B) allow communication between the mounting groove (12) and the second cavities (11B). A first terminal (20A) is accommodated in the first cavity (11A), and second terminals (20B) are accommodated in the second cavities (11B). A busbar (60) includes a plate-shaped body (61) accommodated in the mounting groove (12). A first contact piece (62A) integrally projects from the busbar body (61) toward the first stage and enters the communication portion (13A) to contact the first terminal (20A), and second contact pieces (62B) integrally project from the busbar body (61) toward the second stage and enter the communication portions (13B) and contact the second terminals (20B).Type: GrantFiled: January 9, 2020Date of Patent: November 17, 2020Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Yukihiro Fukatsu, Toshikazu Sakurai
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Publication number: 20200251865Abstract: A joint connector includes a plurality of target terminals (40), a joint terminal (10) connected to the respective target terminals (40) for short-circuiting the respective target terminals (40), and a housing (60) for accommodating the respective target terminals (40). The target terminal (40) includes a coupling portion (44) located between a body portion (42) and a crimping portion (43) to couple the both and having a concave cross-section. The joint terminal (10) includes a base portion (11) and a plurality of contact pieces (12) projecting from the base portion (11) and moves to an entrance position where the respective contact pieces (12) are inserted into the coupling portions (44) of the respective target terminals (40) after the respective target terminals 40 are accommodated into the housing (60). Each contact piece (42) resiliently contacts an inner surface of the corresponding coupling portion 44 at the entrance position.Type: ApplicationFiled: January 9, 2020Publication date: August 6, 2020Inventors: Yukihiro Fukatsu, Toshikazu Sakurai
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Publication number: 20200251866Abstract: A housing (10) has a mounting groove (12) between a first cavity (11A) in a first stage and second cavities (11B) in a second stage. A first communication portion (13A) allows communication between the mounting groove (12) and the first cavity (11A), Second communication portions (13B) allow communication between the mounting groove (12) and the second cavities (11B). A first terminal (20A) is accommodated in the first cavity (11A), and second terminals (20B) are accommodated in the second cavities (11B). A busbar (60) includes a plate-shaped body (61) accommodated in the mounting groove (12). A first contact piece (62A) integrally projects from the busbar body (61) toward the first stage and enters the communication portion (13A) to contact the first terminal (20A), and second contact pieces (62B) integrally project from the busbar body (61) toward the second stage and enter the communication portions (13B) and contact the second terminals (20B).Type: ApplicationFiled: January 9, 2020Publication date: August 6, 2020Inventors: Yukihiro Fukatsu, Toshikazu Sakurai
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Publication number: 20200212619Abstract: It is aimed to provide a joint connector capable of holding a plurality of housings and a busbar without complicating the entire configuration. A joint connector includes a first housing (10) configured to accommodate first terminals (60), a second housing (40) configured to accommodate second terminals (70) and be united with the first housing (10), and a busbar (80) having first tabs (84) to be connected to the first terminals (60) and second tabs (85) to be connected to the second terminals (70). The busbar (80) includes a coupling portion (83) coupling the side of the first tabs 84 and the side of the second tabs (85), first fixing portions (86) to be fixed to the first housing (10) and second fixing portions (87) to be fixed to the second housing (40).Type: ApplicationFiled: December 20, 2019Publication date: July 2, 2020Inventors: Yukihiro Fukatsu, Toshikazu Sakurai
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Patent number: 10418615Abstract: A battery terminal includes a fastening portion (11) that is partially open in a circumferential direction and a flange (42) projects radially out from the fastening portion (11). Two facing portions (14) project radially out from open ends (13) of the fastening portion (11) and face each other in the circumferential direction. The fastening portion (11) is reduced in diameter and fastened to a battery post P by having the facing portions (14) approach each other. The flange (42) of the fastening portion (11) has cuts (20) for partially reducing a thickness of the fastening portion (11) in a radial direction.Type: GrantFiled: January 4, 2017Date of Patent: September 17, 2019Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Keiichi Tsukiyoshi, Toshikazu Sakurai
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Patent number: 10158196Abstract: A connector includes a first housing (10) with two detection terminals (13), a resilient deflecting portion (37) in a second housing (30), a shorting terminal fitting (60) in the second housing (30), wiping portions (68) integrally formed to the shorting terminal fitting (60) and configured such that the detection terminals (13) slide in contact therewith in the process of connecting the first and second housings (10, 30), and a resilient contact piece (62) integrally formed to the shorting terminal fitting (60) and configured to be resiliently displaced to a retracted position, where the resilient contact piece is not in contact with the detection terminals (13), as the resilient deflecting portion (37) is resiliently deflected and resiliently return to a short-circuit position, where the resilient contact piece contacts the detection terminals (13), and short the detection terminals (13) as the resilient deflecting portion (37) resiliently turns.Type: GrantFiled: April 4, 2016Date of Patent: December 18, 2018Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Masayasu Fujii, Toshikazu Sakurai
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Patent number: 9997863Abstract: Retainers (37) are exposed on an outer surface of the sub-housing (30) and are displaceable between a locking state for retaining terminal fittings (34) inserted into a sub-housing (30) and a separated state for allowing the terminal fittings (34) to be withdrawn from the sub-housing (30). A frame (10) is formed with a holding portion (20) configured to hold the sub-housing (30) by being locked to the outer surface of the sub-housing (30) and openings (24) expose the retainers (37) with the sub-housing (30) held in the holding portion (20).Type: GrantFiled: February 8, 2017Date of Patent: June 12, 2018Assignee: SUMITOMO WIRING SYSTEMS, LTD.Inventors: Junya Matsuura, Toshikazu Sakurai
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Publication number: 20180115110Abstract: A connector includes a first housing (10) with two detection terminals (13), a resilient deflecting portion (37) in a second housing (30), a shorting terminal fitting (60) in the second housing (30), wiping portions (68) integrally formed to the shorting terminal fitting (60) and configured such that the detection terminals (13) slide in contact therewith in the process of connecting the first and second housings (10, 30), and a resilient contact piece (62) integrally formed to the shorting terminal fitting (60) and configured to be resiliently displaced to a retracted position, where the resilient contact piece is not in contact with the detection terminals (13), as the resilient deflecting portion (37) is resiliently deflected and resiliently return to a short-circuit position, where the resilient contact piece contacts the detection terminals (13), and short the detection terminals (13) as the resilient deflecting portion (37) resiliently turns.Type: ApplicationFiled: April 4, 2016Publication date: April 26, 2018Inventors: Masayasu Fujii, Toshikazu Sakurai
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Patent number: 9865966Abstract: A slide lever (30) provided on a fit-in side housing (F) includes cam functioning portions (31) configured to enter the receptacle (11) in the process of connecting the waiting side housing (M) and the fit-in side housing (F), and the cam functioning portions (31) are formed with cam grooves (32) to be engaged with cam followers (15) in the process of connecting the two housings (F, M). An operating portion (33) projects substantially parallel to a moving direction of the slide lever (30) from rear end parts of the cam functioning portions (31) in an entering direction into the receptacle (11) and is arranged forwardly of a front face (S) of the panel (P).Type: GrantFiled: February 8, 2017Date of Patent: January 9, 2018Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Junya Matsuura, Toshikazu Sakurai
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Patent number: 9831577Abstract: A board connector (M) includes a housing (10) formed from first and second separately formed moldings (11, 12). The first molding (11) includes a terminal holding portion (13) and a base-side peripheral wall (20). The second molding (20) is tubular and includes a tip-side peripheral wall (28) with a supporting shaft (31) and ribs (32) projecting integrally in from an inner surface of the tip-side peripheral wall (28). The base-side peripheral wall (20) and the tip-side peripheral wall (28) are assembled to form a receptacle (14) projecting forward from an outer peripheral edge of the terminal holding portion (13). A supporting shaft (31) and ribs (32) are formed integrally with the receptacle (14) and project from an inner wall surface of the receptacle (14).Type: GrantFiled: October 19, 2016Date of Patent: November 28, 2017Assignee: SUMITOMO WIRING SYSTEMS, LTD.Inventors: Masayasu Fujii, Toshikazu Sakurai
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Patent number: 9806453Abstract: A waiting side housing (M) includes resilient locking pieces (15) and resilient contact pieces (18). Locks (16) of the resilient locking pieces (15) restrict a displacement of the waiting side housing (M) toward a complete holding position by being locked to a mounting hole (H) and are separated from the mounting hole (H) only by resilient deformation of the resilient locking pieces (15). Contact portions (19) of the resilient contact pieces (18) are in contact with the mounting hole (H) with the waiting side housing (M) located at a temporary holding position. If tapered surfaces (20) of the contact portions (19) are pressed by an edge part of the mounting hole (H), the resilient contact pieces (18) are resiliently deformed to separate the contact portions (19) from the mounting hole (H).Type: GrantFiled: February 8, 2017Date of Patent: October 31, 2017Assignee: SUMITOMO WIRING SYSEMS, LTD.Inventors: Junya Matsuura, Toshikazu Sakurai
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Publication number: 20170256878Abstract: A waiting side housing (M) includes resilient locking pieces (15) and resilient contact pieces (18). Locks (16) of the resilient locking pieces (15) restrict a displacement of the waiting side housing (M) toward a complete holding position by being locked to a mounting hole (H) and are separated from the mounting hole (H) only by resilient deformation of the resilient locking pieces (15). Contact portions (19) of the resilient contact pieces (18) are in contact with the mounting hole (H) with the waiting side housing (M) located at a temporary holding position. If tapered surfaces (20) of the contact portions (19) are pressed by an edge part of the mounting hole (H), the resilient contact pieces (18) are resiliently deformed to separate the contact portions (19) from the mounting hole (H).Type: ApplicationFiled: February 8, 2017Publication date: September 7, 2017Inventors: Junya Matsuura, Toshikazu Sakurai
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Publication number: 20170256877Abstract: Retainers (37) are exposed on an outer surface of the sub-housing (30) and are displaceable between a locking state for retaining terminal fittings (34) inserted into a sub-housing (30) and a separated state for allowing the terminal fittings (34) to be withdrawn from the sub-housing (30). A frame (10) is formed with a holding portion (20) configured to hold the sub-housing (30) by being locked to the outer surface of the sub-housing (30) and openings (24) expose the retainers (37) with the sub-housing (30) held in the holding portion (20).Type: ApplicationFiled: February 8, 2017Publication date: September 7, 2017Inventors: Junya Matsuura, Toshikazu Sakurai
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Publication number: 20170256888Abstract: A slide lever (30) provided on a fit-in side housing (F) includes cam functioning portions (31) configured to enter the receptacle (11) in the process of connecting the waiting side housing (M) and the fit-in side housing (F), and the cam functioning portions (31) are formed with cam grooves (32) to be engaged with cam followers (15) in the process of connecting the two housings (F, M). An operating portion (33) projects substantially parallel to a moving direction of the slide lever (30) from rear end parts of the cam functioning portions (31) in an entering direction into the receptacle (11) and is arranged forwardly of a front face (S) of the panel (P).Type: ApplicationFiled: February 8, 2017Publication date: September 7, 2017Inventors: Junya Matsuura, Toshikazu Sakurai