Patents by Inventor Yasukazu Chikamatsu
Yasukazu Chikamatsu 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: 20240088581Abstract: A connector for a shielded electric wire includes: a shield terminal connected to a braid on one end side thereof and grounding the braid by contact at a leaf spring on the other end side thereof; a first packing (sealing member) that seals between a housing and an object inserted into a through hole from an inner surface of the housing to an inner surface of the through hole; and a support member that is a resin ring exteriorly mounted on the shield terminal to be adjacent to the leaf spring and disposed inside the through hole in such a manner that an outer circumferential edge thereof is in contact with the inner surface of the through hole, thereby suppressing an offset of a central axis of the shield terminal with respect to a central axis of the through hole.Type: ApplicationFiled: August 9, 2023Publication date: March 14, 2024Applicant: Yazaki CorporationInventors: Daisuke SUGIYAMA, Masanobu Higashitani, Tomoaki Hayakawa, Yasukazu Chikamatsu
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Publication number: 20240088604Abstract: An attachment member 12 of a connection direction converting connector 1a includes a frame-shaped second seal member 124 configured to seal between: a frame-shaped housing-side opposing surface 122a-6 of the attachment housing 122 that surrounds the accommodation portion that contains a connection portion between an attachment terminal 121 and a connector terminal 112 and faces the shell 123; and a frame-shaped shell-side opposing surface 123k of the shell 123 that faces the housing-side opposing surface 122a-6.Type: ApplicationFiled: August 9, 2023Publication date: March 14, 2024Applicant: Yazaki CorporationInventors: Daisuke SUGIYAMA, Masanobu HIGASHITANI, Tomoaki HAYAKAWA, Yasukazu CHIKAMATSU
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Publication number: 20240088595Abstract: A fastening structure 100 of metal plates includes a first metal plate 2 including a first hole portion 2A, a second metal plate 3 including a second hole portion 3A, and a fastening material B1 fastened to penetrate the first hole portion and the second hole portion, with the first metal plate and the second metal plate overlapping each other, wherein the first metal plate is provided with protrusions 24, 24, the second metal plate is provided with receiving portions 31A, 31B in which the protrusions fit, and with the protrusions fitting in the receiving portions, the first metal plate is restricted from rotating with respect to the second metal plate.Type: ApplicationFiled: August 10, 2023Publication date: March 14, 2024Applicant: Yazaki CorporationInventors: Daisuke SUGIYAMA, Masanobu HIGASHITANI, Tomoaki HAYAKAWA, Yasukazu CHIKAMATSU
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Patent number: 11509090Abstract: A connector includes: a terminal fitting; a housing containing the terminal fitting inside and provided with a fitting portion inserted and fitted into inside of a hole-shaped counterpart fitting portion of a counterpart wall member; and a shield shell including a cylindrical portion covering, from outside, a projecting portion of the housing projecting from the counterpart fitting portion, a flange portion projecting outer than an outer circumferential surface of the cylindrical portion and a fixed portion bent from an end portion of the flange portion and fixed on an end surface of the counterpart wall member. The shield shell is provided with a bent portion between the flange portion and the fixed portion, and a bulging portion including an inner wall surface positioned inside a curve of the bent portion at an end portion in an extending direction of a bending line of the bent portion.Type: GrantFiled: August 6, 2021Date of Patent: November 22, 2022Assignee: YAZAKI CORPORATIONInventors: Satoki Masuda, Yasukazu Chikamatsu, Ayumu Ishikawa
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Patent number: 11444409Abstract: A connector includes: a terminal fitting; a housing containing the terminal fitting inside and provided with a fitting portion inserted and fitted into inside of a hole-shaped counterpart fitting portion of a counterpart wall member; a shield shell including a cylindrical portion covering, from outside, a projecting portion of the housing, a flange portion projecting outer than an outer circumferential surface of the cylindrical portion, and a fixed portion bent from an end portion of the flange portion and fixed on an end surface of the counterpart wall member; and an annular water stop member attached to the flange portion and pressed between the flange portion and the wall surface of the counterpart wall member. The shield shell is provided with a through hole provided in a bent portion between the flange portion and the fixed portion and causing inside and outside thereof to communicate with each other.Type: GrantFiled: July 23, 2021Date of Patent: September 13, 2022Assignee: YAZAKI CORPORATIONInventors: Satoki Masuda, Yasukazu Chikamatsu, Ayumu Ishikawa
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Publication number: 20220052478Abstract: A connector includes: a terminal fitting; a housing containing the terminal fitting inside and provided with a fitting portion inserted and fitted into inside of a hole-shaped counterpart fitting portion of a counterpart wall member; a shield shell including a cylindrical portion covering, from outside, a projecting portion of the housing, a flange portion projecting outer than an outer circumferential surface of the cylindrical portion, and a fixed portion bent from an end portion of the flange portion and fixed on an end surface of the counterpart wall member; and an annular water stop member attached to the flange portion and pressed between the flange portion and the wall surface of the counterpart wall member. The shield shell is provided with a through hole provided in a bent portion between the flange portion and the fixed portion and causing inside and outside thereof to communicate with each other.Type: ApplicationFiled: July 23, 2021Publication date: February 17, 2022Applicant: Yazaki CorporationInventors: Satoki MASUDA, Yasukazu Chikamatsu, Ayumu Ishikawa
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Publication number: 20220052479Abstract: A connector includes: a terminal fitting; a housing containing the terminal fitting inside and provided with a fitting portion inserted and fitted into inside of a hole-shaped counterpart fitting portion of a counterpart wall member; and a shield shell including a cylindrical portion covering, from outside, a projecting portion of the housing projecting from the counterpart fitting portion, a flange portion projecting outer than an outer circumferential surface of the cylindrical portion and a fixed portion bent from an end portion of the flange portion and fixed on an end surface of the counterpart wall member. The shield shell is provided with a bent portion between the flange portion and the fixed portion, and a bulging portion including an inner wall surface positioned inside a curve of the bent portion at an end portion in an extending direction of a bending line of the bent portion.Type: ApplicationFiled: August 6, 2021Publication date: February 17, 2022Applicant: Yazaki CorporationInventors: Satoki MASUDA, Yasukazu CHIKAMATSU, Ayumu ISHIKAWA
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Patent number: 11181197Abstract: A seal member for waterproofing in the waterproof connector includes: a cylindrical inner tube portion that is face-to-face attached to an outer peripheral surface of a connector main body that is attached to a through-hole provided with a tapered opening; and an outer tube portion surrounding the inner tube portion in a circumferential direction at a rear side of an insertion direction into the tapered opening and opening in a larger diameter than the inner tube portion, and integrated with the inner tube portion at a front side in the insertion direction, and when the seal member is received between the outer peripheral surface of the connector main body and an inner peripheral surface of the tapered opening, face-to-face attached to the inner peripheral surface of the tapered opening while being pressed toward the inner tube portion.Type: GrantFiled: January 3, 2020Date of Patent: November 23, 2021Assignee: YAZAKI CORPORATIONInventors: Yasukazu Chikamatsu, Satoki Masuda
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Publication number: 20200224767Abstract: A seal member for waterproofing in the waterproof connector includes: a cylindrical inner tube portion that is face-to-face attached to an outer peripheral surface of a connector main body that is attached to a through-hole provided with a tapered opening; and an outer tube portion surrounding the inner tube portion in a circumferential direction at a rear side of an insertion direction into the tapered opening and opening in a larger diameter than the inner tube portion, and integrated with the inner tube portion at a front side in the insertion direction, and when the seal member is received between the outer peripheral surface of the connector main body and an inner peripheral surface of the tapered opening, face-to-face attached to the inner peripheral surface of the tapered opening while being pressed toward the inner tube portion.Type: ApplicationFiled: January 3, 2020Publication date: July 16, 2020Applicant: Yazaki CorporationInventors: Yasukazu Chikamatsu, Satoki Masuda
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Patent number: 8007313Abstract: An attaching structure of a connector for attaching a connector to an attached portion, includes: a holding unit which holds the connector at an attaching position by sliding the connector in a direction of intersecting with a superimposing direction of the connector and the attached portion to superimpose the connector on the attached portion; and a pair of holes provided at the connector and the attached portion for passing a screw member by being communicated with each other when the connector is disposed at the attaching position.Type: GrantFiled: August 14, 2008Date of Patent: August 30, 2011Assignees: Yazaki Corporation, Toyota Jidosha Kabushiki KaishaInventors: Masahiro Deno, Yasukazu Chikamatsu, Bunji Nomura, Tsuyoshi Hayashi, Hajime Oyanagi
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Patent number: 7948353Abstract: A power-circuit breaking device, which can easily mount a fuse and has a small number of component and a simple structure. The power-circuit breaking device includes a first connector housing having a pair of circuit terminals connected with a power circuit, and a second connector housing closing the power circuit by fitting with the first connector housing. The second connector housing includes a fuse having a pair of terminals to be connected with the pair of circuit terminals, a housing having a lock arm engaged with a cutout provided at the terminal and a cover an entry opening of a receiving section of the housing. The cover includes a limiter limiting the lock arm to move to disengaging the terminal.Type: GrantFiled: June 23, 2008Date of Patent: May 24, 2011Assignee: Yazaki CorporationInventors: Masahiro Deno, Yasukazu Chikamatsu
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Patent number: 7740504Abstract: A power circuit breaker having a simple structure with a small number of components is provided. The power circuit breaker includes: a circuit receiver which receives a pair of circuit terminals connected to an end of an opened power circuit; and a plug body having a fuse to be mounted on the circuit receiver to close the power circuit. In the fuse, a pair of terminals extending from a housing, which receives a fuse element of the fuse, is bent approximately at right angles at the middle of the terminal. A central curving portion of the bent part is provided with a notch. A cross section of the terminal exposed within the notch is pressed by a jig, which fits with the notch, so that the fuse is press-fit into the plug body.Type: GrantFiled: May 23, 2008Date of Patent: June 22, 2010Assignee: Yazaki CorporationInventors: Yasukazu Chikamatsu, Masahiro Deno, Shigeyuki Ogasawara, Yasuyoshi Fukao
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Publication number: 20090047812Abstract: An attaching structure of a connector for attaching a connector to an attached portion, includes: a holding unit which holds the connector at an attaching position by sliding the connector in a direction of intersecting with a superimposing direction of the connector and the attached portion to superimpose the connector on the attached portion; and a pair of holes provided at the connector and the attached portion for passing a screw member by being communicated with each other when the connector is disposed at the attaching position.Type: ApplicationFiled: August 14, 2008Publication date: February 19, 2009Applicants: YAZAKI CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masahiro DENO, Yasukazu CHIKAMATSU, Bunji NOMURA, Tsuyoshi HAYASHI, Hajime OYANAGI
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Publication number: 20090033453Abstract: For providing a power-circuit breaking device, which can easily mount a fuse and has a small number of component and a simple structure, the power-circuit breaking device includes a first connector housing having a pair of circuit terminals connected with a power circuit, and a second connector housing closing the power circuit by fitting with the first connector housing. The second connector housing includes a fuse having a pair of terminals to be connected with the pair of circuit terminals, a housing having a lock arm engaged with a cutout provided at the terminal and a cover an entry opening of a receiving section of the housing. The cover includes a limiter limiting the lock arm to move to disengaging the terminal.Type: ApplicationFiled: June 23, 2008Publication date: February 5, 2009Applicant: Yazaki CorporationInventors: Masahiro Deno, Yasukazu Chikamatsu
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Publication number: 20080242150Abstract: A power circuit breaker having a simple structure with a small number of components is provided. The power circuit breaker includes: a circuit receiver which receives a pair of circuit terminals connected to an end of an opened power circuit; and a plug body having a fuse to be mounted on the circuit receiver to close the power circuit. In the fuse, a pair of terminals extending from a housing, which receives a fuse element of the fuse, is bent approximately at right angles at the middle of the terminal. The bent part is provided with a notch. A cross section of the terminal exposed within the notch is pressed by a jig, which fits with the notch, so that the fuse is press-fit into the plug body.Type: ApplicationFiled: May 23, 2008Publication date: October 2, 2008Applicant: Yazaki CorporationInventors: Yasukazu Chikamatsu, Masahiro Deno, Shigeyuki Ogasawara, Yasuyoshi Fukao