Patents by Inventor Yukihiro Kawamura
Yukihiro 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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Publication number: 20230307859Abstract: Provided is a female terminal. The female terminal includes a spring member and a terminal main body. The spring member is electrically connected to a male terminal to be connected. The terminal main body includes a base portion which has electrical conductivity and is electrically connected to the spring member. The base portion has a pair of side walls spaced apart by an insertion space that is inserted with a part of the male terminal. The spring member is arranged between the pair of side walls in the base portion, and the spring member is fixed to the side wall with a conductive welded portion with which the spring member is conductively welded to the side wall.Type: ApplicationFiled: June 2, 2023Publication date: September 28, 2023Applicants: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.Inventors: Tomoaki TANIGAWA, Takeshi WATANABE, Yukihiro KAWAMURA, Junya TAKESHITA, Takahiro IMAMURA
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Patent number: 11465573Abstract: An electric wire fixing structure includes a metal protector that houses a protection target part of an electric wire in an electric wire housing chamber on an inner side and allows the electric wire in the electric wire housing chamber to be led out from an electric wire outlet of the electric wire housing chamber; and a fastening structure that fixes the protector to a metal fastening target. The fastening structure includes a male screw member, a through-hole formed in the protector and through which the male screw member is inserted, and a female screw part provided in the fastening target and in which the male screw member is screwed. At least a part of the protector is abutted against the fastening target when the protector is fixed to the fastening target.Type: GrantFiled: October 29, 2021Date of Patent: October 11, 2022Assignee: Yazaki CorporationInventors: Kazutaka Uki, Jumpei Kato, Yukihiro Kawamura
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Patent number: 11329465Abstract: A lock structure includes: an engaged body; and an engaging body capable of inserting and removing the engaged body along insertion and removal directions opposite to each other. An engaged body includes first and second engaged walls disposed opposite to each other at an interval, a connection wall which connects end portions on the insertion direction side thereof, and an engaged protrusion protruding from an outer wall surface of the second engaged wall. An engaging body has first and second engaging walls in which a space between the respective inner wall surfaces is defined as an accommodation space of the engaged body, an engaging protrusion protruding from the inner wall surface of the second engaging wall and capable of locking the engaged protrusion on the removal direction side, and a third engaging wall disposed between the first and second engaging walls.Type: GrantFiled: June 4, 2019Date of Patent: May 10, 2022Assignee: YAZAKI CORPORATIONInventor: Yukihiro Kawamura
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Publication number: 20220134976Abstract: An electric wire fixing structure includes a metal protector that houses a protection target part of an electric wire in an electric wire housing chamber on an inner side and allows the electric wire in the electric wire housing chamber to be led out from an electric wire outlet of the electric wire housing chamber; and a fastening structure that fixes the protector to a metal fastening target. The fastening structure includes a male screw member, a through-hole formed in the protector and through which the male screw member is inserted, and a female screw part provided in the fastening target and in which the male screw member is screwed. At least a part of the protector is abutted against the fastening target when the protector is fixed to the fastening target.Type: ApplicationFiled: October 29, 2021Publication date: May 5, 2022Applicant: Yazaki CorporationInventors: Kazutaka Uki, Jumpei Kato, Yukihiro Kawamura
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Publication number: 20220055550Abstract: A wire harness is arranged in a routing path of a vehicle, and has a first electric wire and a second electric wire connected to the first electric wire. The first electric wire has a first conductor made of a single core conductor, and the second electric wire has a second conductor made of a stranded wire. The first electric wire has at least one bent portion in the routing path. The first electric wire is connected to both sides of the second electric wire, and is arranged under a floor constituting a passenger compartment of a vehicle body in the vehicle.Type: ApplicationFiled: August 3, 2021Publication date: February 24, 2022Applicant: Yazaki CorporationInventors: Hiroyuki TANAKA, Yukihiro KAWAMURA
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Patent number: 10879644Abstract: A busbar component constructing a terminal block has a busbar, a circular O-ring attached to a busbar main body of the busbar, and a holder attached to the busbar main body through an insertion hole of the holder. The busbar main body is formed with a busbar-side engagement portion. A holder main body is arranged between a busbar-side engagement portion and the O-ring. The holder main body is formed with a ring-shaped pressing portion on one opening side of the insertion hole. The holder main body is formed with, on another opening side of the insertion hole, a holder-side engagement portion which is engaged with the busbar-side engagement portion.Type: GrantFiled: March 26, 2019Date of Patent: December 29, 2020Assignee: YAZAKI CORPORATIONInventors: Yukihiro Kawamura, Naoki Isaka
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Patent number: 10821584Abstract: A relay detachment jig includes a handle, a pair of holders that holds a relay, a hold releasing unit that connects the handle and the pair of holders and that is elastically deformable, a deformation restricting unit that restricts elastic deformation of the hold releasing unit, an engagement releasing unit that releases the engagement between the relay and a housing member, and a movement restricting unit that restricts a movement of the relay held in the relay detachment jig in a detaching direction. The handle is provided in a manner extending in the detaching direction from the hold releasing unit.Type: GrantFiled: February 5, 2016Date of Patent: November 3, 2020Assignee: YAZAKI CORPORATIONInventors: Yukihiro Kawamura, Hiroaki Yamada
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Publication number: 20200321757Abstract: A wire harness includes an electric wire having flexibility, and a flexible tubular body that has no slit on an entire region from one end to the other end of the tubular body and accommodates the electric wire. A route regulation portion for restricting the tubular body to a desired route shape is provided in a predetermined range of the tubular body in a tube axis direction of the tubular body in a state where the electric wire is accommodated in the tubular body. The route regulation portion has an injection hole that is provided in a peripheral wall of the tubular body so as to pass through the peripheral wall, and a cured portion that is injected through the injection hole and is cured in the tubular body.Type: ApplicationFiled: April 3, 2020Publication date: October 8, 2020Inventor: Yukihiro Kawamura
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Patent number: 10749285Abstract: A vehicular device has a device main body, a device box housing the device main body, a terminal block attached to a wall of the device box, and a wire harness electrically connected to the device main body via the terminal block. The terminal block includes an O-ring. The O-ring has a ring-shaped O-ring main body and a lock target portion which is continuous with the O-ring main body. The lock target portion has a connection portion which is continuous with the O-ring main body at one end and a lock target portion main body which is continuous with the other end of the connection portion and projects perpendicularly to an extension direction of the connection portion. The lock target portion main body has a hollow portion in a base portion which is continuous with the other end of the connection portion, and thereby assumes a tubular shape.Type: GrantFiled: March 28, 2019Date of Patent: August 18, 2020Assignee: YAZAKI CORPORATIONInventors: Yukihiro Kawamura, Naoki Isaka
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Patent number: 10644418Abstract: An on-vehicle device has a device box accommodating a device body; a terminal block attached to an upper wall of the device box; and a wire harness electrically connected to the device body through this terminal block. The terminal block adopts a drain structure, and this drain structure is provided with: the upper wall of the device box; a housing body attached to the side of an outer surface of the upper wall; a drain outlet passing through a bottom wall of the housing body; and a drain ditch formation portion for forming a drain ditch from this drain outlet to the outside of the housing body. In the drain ditch formation portion, an outer surface of the bottom wall is formed so as to be separated from the outer surface of the upper wall by a dimension of a gap where a capillary phenomenon occurs.Type: GrantFiled: March 26, 2019Date of Patent: May 5, 2020Assignee: YAZAKI CORPORATIONInventors: Yukihiro Kawamura, Naoki Isaka
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Patent number: 10644490Abstract: A liquid-proof structure includes: a first opening periphery part formed on the inside of a first fitting member; a second opening periphery part formed on the outside of the first fitting member; an opening periphery part of a second fitting member fitted to the first fitting member, the opening periphery part being fitted to a gap between the first opening periphery part and the second opening periphery part; and a buffer part defined between an inner wall surface of the second opening periphery part and an outer wall surface of the opening periphery part while the first fitting member and the second fitting member are being fitted. The buffer part is a space part defined by a concave part provided on at least one of the inner wall surface of the second opening periphery part and the outer wall surface of the opening periphery part.Type: GrantFiled: June 4, 2019Date of Patent: May 5, 2020Assignee: YAZAKI CORPORATIONInventor: Yukihiro Kawamura
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Patent number: 10608422Abstract: A lock structure includes an engaged body; and an engaging body capable of inserting and removing the engaged body along insertion and removal directions opposite to each other. An engaged body has a drainage space surrounded by inner wall surfaces of first and second engaged walls and third and fourth engaged walls disposed opposite to each other at an interval, an engaged protrusion protruding from an outer wall surface of the second engaged wall. An engaging body has an accommodation space that is an internal space surrounded by inner wall surfaces of first and second engaging walls and third and fourth engaging walls disposed opposite to each other at an interval and in which the engaged body is accommodated.Type: GrantFiled: June 4, 2019Date of Patent: March 31, 2020Assignee: YAZAKI CORPORATIONInventor: Yukihiro Kawamura
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Patent number: 10578139Abstract: A lock structure includes an engaged body; and an engaging body that allows the engaged body to be inserted thereinto and removed therefrom. The engaged body includes: an engaged main body insertable into and removable from an engaging body; and an engaged protrusion that protrudes from an outer wall surface of the engaged main body. The engaging body includes: a housing space that is an internal space surrounded by inner wall surfaces of first and second engaging walls and third and fourth engaging walls; an insertion port through which the engaged main body is inserted into the housing space from a distal end of an end portion thereof; a locking hole through which the engaged protrusion is inserted; a communicating port that communicates the housing space to the outside; and a covering portion that covers the end portion of the housed engaged main body.Type: GrantFiled: June 4, 2019Date of Patent: March 3, 2020Assignee: YAZAKI CORPORATIONInventor: Yukihiro Kawamura
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Patent number: 10559894Abstract: To provide a method and a device for manufacturing a connection structure (1) and a wire harness (2). The connection structure connects an insulated wire (100) comprising a wire tip portion (103), an insulating covering (102) being stripped from the tip thereof, to a crimp terminal (200) comprising a closed-barrel-type crimping portion (230) allowing crimp connection with the wire tip portion (103) and has stable conductivity by crimping an aluminum core wire (101) by the crimping portion (230). The method comprises a carrier cutting step for separating crimp terminals (200) from a terminal connecting belt (300) comprising the crimp terminals (200) attached to a carrier (250) in a longitudinal direction, a wire insertion step for inserting wire tip portions (103) into the crimping portions (230) of the separated crimp terminals (200), and a crimping step for crimping the crimping portions (230) with the inserted wire tip portions (103).Type: GrantFiled: August 21, 2015Date of Patent: February 11, 2020Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS, INC.Inventors: Yukihiro Kawamura, Satoshi Takamura, Takeshi Hyotani, Koichi Kitagawa, Eiji Aramaki
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Publication number: 20190376542Abstract: A lock structure includes an engaged body; and an engaging body that allows the engaged body to be inserted thereinto and removed therefrom. The engaged body includes: an engaged main body insertable into and removable from an engaging body; and an engaged protrusion that protrudes from an outer wall surface of the engaged main body. The engaging body includes: a housing space that is an internal space surrounded by inner wall surfaces of first and second engaging walls and third and fourth engaging walls; an insertion port through which the engaged main body is inserted into the housing space from a distal end of an end portion thereof; a locking hole through which the engaged protrusion is inserted; a communicating port that communicates the housing space to the outside; and a covering portion that covers the end portion of the housed engaged main body.Type: ApplicationFiled: June 4, 2019Publication date: December 12, 2019Inventor: Yukihiro Kawamura
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Publication number: 20190379193Abstract: A lock structure includes: an engaged body; and an engaging body capable of inserting and removing the engaged body along insertion and removal directions opposite to each other. An engaged body includes first and second engaged walls disposed opposite to each other at an interval, a connection wall which connects end portions on the insertion direction side thereof, and an engaged protrusion protruding from an outer wall surface of the second engaged wall. An engaging body has first and second engaging walls in which a space between the respective inner wall surfaces is defined as an accommodation space of the engaged body, an engaging protrusion protruding from the inner wall surface of the second engaging wall and capable of locking the engaged protrusion on the removal direction side, and a third engaging wall disposed between the first and second engaging walls.Type: ApplicationFiled: June 4, 2019Publication date: December 12, 2019Inventor: Yukihiro Kawamura
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Publication number: 20190379194Abstract: A lock structure includes an engaged body; and an engaging body capable of inserting and removing the engaged body along insertion and removal directions opposite to each other. An engaged body has a drainage space surrounded by inner wall surfaces of first and second engaged walls and third and fourth engaged walls disposed opposite to each other at an interval, an engaged protrusion protruding from an outer wall surface of the second engaged wall. An engaging body has an accommodation space that is an internal space surrounded by inner wall surfaces of first and second engaging walls and third and fourth engaging walls disposed opposite to each other at an interval and in which the engaged body is accommodated.Type: ApplicationFiled: June 4, 2019Publication date: December 12, 2019Inventor: Yukihiro Kawamura
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Publication number: 20190379191Abstract: A liquid-proof structure includes: a first opening periphery part formed on the inside of a first fitting member; a second opening periphery part formed on the outside of the first fitting member; an opening periphery part of a second fitting member fitted to the first fitting member, the opening periphery part being fitted to a gap between the first opening periphery part and the second opening periphery part; and a buffer part defined between an inner wall surface of the second opening periphery part and an outer wall surface of the opening periphery part while the first fitting member and the second fitting member are being fitted. The buffer part is a space part defined by a concave part provided on at least one of the inner wall surface of the second opening periphery part and the outer wall surface of the opening periphery part.Type: ApplicationFiled: June 4, 2019Publication date: December 12, 2019Inventor: Yukihiro Kawamura
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Publication number: 20190305460Abstract: A vehicular device has a device main body, a device box housing the device main body, a terminal block attached to a wall of the device box, and a wire harness electrically connected to the device main body via the terminal block. The terminal block includes an O-ring. The O-ring has a ring-shaped O-ring main body and a lock target portion which is continuous with the O-ring main body. The lock target portion has a connection portion which is continuous with the O-ring main body at one end and a lock target portion main body which is continuous with the other end of the connection portion and projects perpendicularly to an extension direction of the connection portion. The lock target portion main body has a hollow portion in a base portion which is continuous with the other end of the connection portion, and thereby assumes a tubular shape.Type: ApplicationFiled: March 28, 2019Publication date: October 3, 2019Applicant: Yazaki CorporationInventors: Yukihiro Kawamura, Naoki Isaka
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Publication number: 20190305471Abstract: A busbar component constructing a terminal block has a busbar, a circular O-ring attached to a busbar main body of the busbar, and a holder attached to the busbar main body through an insertion hole of the holder. The busbar main body is formed with a busbar-side engagement portion. A holder main body is arranged between a busbar-side engagement portion and the O-ring. The holder main body is formed with a ring-shaped pressing portion on one opening side of the insertion hole. The holder main body is formed with, on another opening side of the insertion hole, a holder-side engagement portion which is engaged with the busbar-side engagement portion.Type: ApplicationFiled: March 26, 2019Publication date: October 3, 2019Applicant: Yazaki CorporationInventors: Yukihiro KAWAMURA, Naoki ISAKA