Patents by Inventor Masayuki Kawamura
Masayuki Kawamura 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: 9287667Abstract: The present invention concerns a shield shell (70) to be connected to a case made of metal and including a shell main body (71) with a case connecting portion (74) to be connected to the case, a single collective shield connecting portion (72) provided on the shell main body (71) and formed into an elliptical tubular shape, and a plurality of individual-core shield connecting portions (77) provided on the shell main body (71) and formed into a cylindrical shape. The present invention may also concern a shield connector (10) including the shield shell (70), a housing (40) to be held onto the shield shell (70), wires with terminal fittings (20) inserted through the interior of the housing (40), and a single braided wire (90) connected to the single collective shield connecting portion (72) of the shield shell (70).Type: GrantFiled: March 1, 2012Date of Patent: March 15, 2016Assignee: Sumitomo Wiring Systems, Ltd.Inventor: Masayuki Kawamura
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Publication number: 20150318654Abstract: An object of the present invention is to provide a technology capable of inhibiting localized thinness in a coating thickness of a sheath formed on a wire with terminal. A method of manufacturing a wire with terminal includes: a) a step of crimping a core wire crimping portion of a terminal onto an exposed core wire extending from an insulating sheathing member at an end portion of a wire; b) a step of crimping a sheath crimping portion of the terminal onto the insulating sheathing member; and c) a step of designating at least one of a first trough-shaped combination portion, which links a terminal connection portion of the terminal and the core wire crimping portion, and a second trough-shaped combination portion, which links the core wire crimping portion and the sheath crimping portion, as a target combination portion and deforming circumference direction end portions of the target combination portion inward.Type: ApplicationFiled: July 22, 2013Publication date: November 5, 2015Applicant: SUMITOMO WIRING SYSTEMS, LTD.Inventors: Masayuki KAWAMURA, Toshiyuki IHARA
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Publication number: 20140367157Abstract: The present invention concerns a shield shell (70) to be connected to a case made of metal and including a shell main body (71) with a case connecting portion (74) to be connected to the case, a single collective shield connecting portion (72) provided on the shell main body (71) and formed into an elliptical tubular shape, and a plurality of individual-core shield connecting portions (77) provided on the shell main body (71) and formed into a cylindrical shape. The present invention may also concern a shield connector (10) including the shield shell (70), a housing (40) to be held onto the shield shell (70), wires with terminal fittings (20) inserted through the interior of the housing (40), and a single braided wire (90) connected to the single collective shield connecting portion (72) of the shield shell (70).Type: ApplicationFiled: March 1, 2012Publication date: December 18, 2014Inventor: Masayuki Kawamura
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Patent number: 8907762Abstract: An electronic key system that performs ID verification communication to verify an ID of an electronic key. The ID verification communication is started by transmission of a wireless signal from a vehicle and performed between the vehicle and the electronic key. The electronic key system determines the location of the electronic key in accordance with the received signal strength of a radio wave used for the ID verification communication. A signal strength measurement circuit measures a first signal strength, which is the received signal strength when a signal from the electronic key is received, and a second signal strength, which is the received signal strength of the radio wave during a vacant time when the electronic key is performing the ID verification communication. A control unit controls operation of the electronic key in accordance with a measurement result of the first and second signal strengths.Type: GrantFiled: December 9, 2011Date of Patent: December 9, 2014Assignee: Kabushiki Kaisha Tokai Rika Denki SeisakushoInventor: Masayuki Kawamura
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Publication number: 20140311799Abstract: The present invention aims to maximally reduce a projecting width of a projecting part formed on a terminal when the terminal is crimped to an exposed core part of an end part of a wire. To achieve this aim, a method for producing a terminal-equipped wire in which a crimping portion of a terminal is crimped to an exposed core part of an end part of a wire includes a) a step of arranging the exposed core part in the crimping portion, b) a step of sandwiching a part of the crimping portion between a lower die surface of a lower die and an upper die surface of an upper die and crimping the part of the crimping portion to the exposed core part, and c) a step of pressing an end part of the crimping portion protruding from the upper die surface from above.Type: ApplicationFiled: February 7, 2012Publication date: October 23, 2014Applicant: Sumitomo Wiring Systems, LtdInventors: Masayuki Kawamura, Masahiro Imai, Naoyuki Ueda, Tomohiro Shibata
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Patent number: 8579655Abstract: A device connector (10) includes a service cover (30) to close a service hole (22) on a case (20). A case-side connector (60) is arranged in the case (20) and mounted in a mounting recess (42) in a terminal block (40). A cover-side connector (50) is provided integrally to the service cover (30) and is connected to the case-side connector (60) in a waiting state to form an interlock circuit when the service cover (30) is mounted on the case (20). Flexible pieces (65) hold the case-side connector (60) with a clearance (CL) between the case-side connector (60) and the inner wall of the mounting recess (42) when the case-side connector (60 is in the waiting state. On the other hand, the flexible pieces (65) bias the case-side connector (60) to return the case-side connector (60) to the waiting state when the clearance (CL) changes.Type: GrantFiled: April 18, 2012Date of Patent: November 12, 2013Assignee: Sumitomo Wiring Systems, Ltd.Inventor: Masayuki Kawamura
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Patent number: 8562381Abstract: A connector (10) having a plat-shaped terminal fitting (40) connected to a plate-shaped conductor (T) extended from equipment by tightening a bolt with the conductor (10) being overlapped on the terminal fitting (40) and a connector housing (11) holding the terminal fitting (40). A metal nut (45) into which a bolt (V1) is screwed is joined with the terminal fitting (40). The connector housing (11) has a supporting part (25) supporting both side edges of the terminal fitting (40) in a width direction thereof.Type: GrantFiled: September 26, 2011Date of Patent: October 22, 2013Assignee: Sumitomo Wiring Systems, Ltd.Inventor: Masayuki Kawamura
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Patent number: 8562377Abstract: A shield connector (10) is mounted in a metal case (C) that contains a device to be mounted in a vehicle. The shield connector (10) has a housing (30) in which terminal fittings (20) connected to ends of wires (W) are accommodated and from which the wires (W) are pulled out. Rubber plugs (70) are provided for sealing between the inner peripheries of cavities (31) in the housing (30) and the outer peripheries of the wires (W). A shield shell (50) covers the housing (30) and is connected electrically to the case (C) and also to a shield conductor (60) through which the wires (W) are inserted. A second rubber ring is provided between the housing (30) and the shield shell (50).Type: GrantFiled: April 10, 2012Date of Patent: October 22, 2013Assignee: Sumitomo Wiring Systems, Ltd.Inventor: Masayuki Kawamura
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Publication number: 20120282789Abstract: A device connector (10) includes a service cover (30) to close a service hole (22) on a case (20). A case-side connector (60) is arranged in the case (20) and mounted in a mounting recess (42) in a terminal block (40). A cover-side connector (50) is provided integrally to the service cover (30) and is connected to the case-side connector (60) in a waiting state to form an interlock circuit when the service cover (30) is mounted on the case (20). Flexible pieces (65) hold the case-side connector (60) with a clearance (CL) between the case-side connector (60) and the inner wall of the mounting recess (42) when the case-side connector (60 is in the waiting state. On the other hand, the flexible pieces (65) bias the case-side connector (60) to return the case-side connector (60) to the waiting state when the clearance (CL) changes.Type: ApplicationFiled: April 18, 2012Publication date: November 8, 2012Applicant: Sumitomo Wiring Systems, Ltd.Inventor: Masayuki Kawamura
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Publication number: 20120270444Abstract: A shield connector (10) is mounted in a metal case (C) that contains a device to be mounted in a vehicle. The shield connector (10) has a housing (30) in which terminal fittings (20) connected to ends of wires (W) are accommodated and from which the wires (W) are pulled out. Rubber plugs (70) are provided for sealing between the inner peripheries of cavities (31) in the housing (30) and the outer peripheries of the wires (W). A shield shell (50) covers the housing (30) and is connected electrically to the case (C) and also to a shield conductor (60) through which the wires (W) are inserted. A second rubber ring is provided between the housing (30) and the shield shell (50).Type: ApplicationFiled: April 10, 2012Publication date: October 25, 2012Applicant: SUMITOMO WIRING SYSTEMS, LTD.Inventor: Masayuki Kawamura
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Publication number: 20120154114Abstract: An electronic key system that performs ID verification communication to verify an ID of an electronic key. The ID verification communication is started by transmission of a wireless signal from a vehicle and performed between the vehicle and the electronic key. The electronic key system determines the location of the electronic key in accordance with the received signal strength of a radio wave used for the ID verification communication. A signal strength measurement circuit measures a first signal strength, which is the received signal strength when a signal from the electronic key is received, and a second signal strength, which is the received signal strength of the radio wave during a vacant time when the electronic key is performing the ID verification communication. A control unit controls operation of the electronic key in accordance with a measurement result of the first and second signal strengths.Type: ApplicationFiled: December 9, 2011Publication date: June 21, 2012Applicant: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHOInventor: Masayuki KAWAMURA
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Publication number: 20120142214Abstract: A connector (10) having a plat-shaped terminal fitting (40) connected to a plate-shaped conductor (T) extended from equipment by tightening a bolt with the conductor (10) being overlapped on the terminal fitting (40) and a connector housing (11) holding the terminal fitting (40). A metal nut (45) into which a bolt (V1) is screwed is joined with the terminal fitting (40). The connector housing (11) has a supporting part (25) supporting both side edges of the terminal fitting (40) in a width direction thereof.Type: ApplicationFiled: September 26, 2011Publication date: June 7, 2012Applicant: SUMITOMO WIRING SYSTEMS, LTD.Inventor: Masayuki Kawamura
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Patent number: 7959469Abstract: A connector device (10) has a connector (20) to be mounted on a metal case (11) that accommodates a device therein and is covered by a first shield shell (50) and a second shield shell (60). Connecting portions for connecting the first and second shield shells (50, 60) are provided at least at three positions and these connecting portions are arranged at positions displaced in a connecting direction of the connector (20) and a mating connector (40) and a direction orthogonal to the connecting direction. The connecting positions of the first and second shield shells (50, 60) are well-balanced to provide a good a shielding performance.Type: GrantFiled: February 4, 2010Date of Patent: June 14, 2011Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Masayuki Kawamura, Hiroyuki Matsuoka
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Publication number: 20100216323Abstract: A connector device (10) has a connector (20) to be mounted on a metal case (11) that accommodates a device therein and is covered by a first shield shell (50) and a second shield shell (60). Connecting portions for connecting the first and second shield shells (50, 60) are provided at least at three positions and these connecting portions are arranged at positions displaced in a connecting direction of the connector (20) and a mating connector (40) and a direction orthogonal to the connecting direction. The connecting positions of the first and second shield shells (50, 60) are well-balanced to provide a good a shielding performance.Type: ApplicationFiled: February 4, 2010Publication date: August 26, 2010Applicant: SUMITOMO WIRING SYSTEMS, LTD.Inventors: Masayuki Kawamura, Hiroyuki Matsuoka
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Patent number: 7597589Abstract: A housing (10) made of synthetic resin, in which plate-like terminals (20) are to be accommodated, is formed with cavities (14), into which the terminals (20) are inserted, and resin locking lances (16) extending along surrounding walls (15) of the cavities (14). An engaging projection (16B) engageable with an engaging hole (22) of the terminal (20) projects from the resin locking lance (16). A clearance CL for permitting displacements of the terminal (20) is defined between a facing wall (15L) of the surrounding wall (15) of the cavity (14) facing the resin locking lance (16) and a main body (16A) of the resin locking lance (16) excluding the engaging projection (16B). A projecting distance of the engaging projection (16B) is longer than a difference between the dimension of the clearance and the thickness of the terminal (20).Type: GrantFiled: October 10, 2008Date of Patent: October 6, 2009Assignee: Sumitomo Wiring Systems, Ltd.Inventor: Masayuki Kawamura
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Publication number: 20090098779Abstract: A housing (10) made of synthetic resin, in which plate-like terminals (20) are to be accommodated, is formed with cavities (14), into which the terminals (20) are inserted, and resin locking lances (16) extending along surrounding walls (15) of the cavities (14). An engaging projection (16B) engageable with an engaging hole (22) of the terminal (20) projects from the resin locking lance (16). A clearance CL for permitting displacements of the terminal (20) is defined between a facing wall (15L) of the surrounding wall (15) of the cavity (14) facing the resin locking lance (16) and a main body (16A) of the resin locking lance (16) excluding the engaging projection (16B). A projecting distance of the engaging projection (16B) is longer than a difference between the dimension of the clearance and the thickness of the terminal (20).Type: ApplicationFiled: October 10, 2008Publication date: April 16, 2009Applicant: SUMITOMO WIRING SYSTEMS, LTD.Inventor: Masayuki Kawamura
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Patent number: 7505279Abstract: A portable device that resists deformation caused by an external force while remaining water resistant. The portable device includes a case, which is made of a flexible material. A battery compartment is formed in the case. A separable portion is arranged in the part of the case corresponding to the battery compartment. Part of the case is bent to open the separable portion and expose the battery compartment from the case.Type: GrantFiled: January 28, 2004Date of Patent: March 17, 2009Assignee: Kabushiki Kaisha Tokai Rika Denki SeisakushoInventors: Kiyokazu Ohtaki, Seiji Ishigaki, Daisuke Kawamura, Masayuki Kawamura
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Patent number: 7443287Abstract: A portable device for facilitating adjustment of the area in which communication with a controller is enabled. The portable device performs wireless communication with an in-vehicle device, which controls a door lock driver or an engine starter of a vehicle, to remotely control the in-vehicle device. The portable device includes a receiver for receiving a request signal from the in-vehicle device and a control unit for lowering or raising the signal receiving sensitivity of the receiver by predetermined levels to adjust the signal receiving sensitivity.Type: GrantFiled: September 15, 2005Date of Patent: October 28, 2008Assignee: Kabushiki Kaisha Tokai Rika Denki SeisakushoInventors: Masayuki Kawamura, Yutaka Yoshida, Toshimasa Shibagaki, Masachika Kamiya, Noriyasu Onishi
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Patent number: 7199710Abstract: A controller enabling switching between a smart function and an immobilizer function without using a key cylinder or a slot. The controller includes a verification ECU for transmitting a request signal to a first area and transmitting a transponder drive radio wave to a second area. The portable device transmits an ID code signal in response to the request signal or the transponder drive radio wave. The verification ECU enables the starting of an engine when the ID code transmitted from the portable device matches an ID code of the controller. The verification ECU transmits the drive radio wave when a driver operates a switch in a state in which the starting of the engine is not enabled after the request signal is transmitted.Type: GrantFiled: June 2, 2004Date of Patent: April 3, 2007Assignees: Kabushiki Kaisha Tokai Rika Denki, Seisakusho & Toyota Jidosha KabushikiInventors: Takayuki Hiramitsu, Masayuki Kawamura, Kiyokazu Ohtaki, Yoshihito Mizuno, Hiroyasu Hasegawa, Daisuke Kawamura, Toshikazu Mizutani, Tomoyuki Funayama, Teruya Tomiyasu, Koji Iwamoto, Noriyasu Onishi
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Patent number: 7189117Abstract: A shielding shell (18) is integrated into a housing (5) by insert molding, whereas a shell connecting member (22) is mounted on an end of a braided wire (2) of a shielded cable (1) by crimping a crimping ring (23) and can be brought into contact with the inner surface of the shielding shell (18). A cover (17) is mounted on the rear end of the housing (5) to retain the shell connecting member (22). As the crimping ring (23) is crimped, ribs (26) are formed to project and each of them is engageable with any one of turn preventing recesses (35) arranged at a plurality of positions along circumferential direction on the inner circumferential surface of the cover (17). Thus, the shell connecting member (22) is prevented from turning, thereby causing no abrasion at contact portions with the shielding shell (18).Type: GrantFiled: July 10, 2006Date of Patent: March 13, 2007Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Masayuki Kawamura, Masato Minakata, Atsushi Nishida