Patents by Inventor Toshikazu Yoshioka
Toshikazu Yoshioka 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: 10312621Abstract: A male terminal metal fitting including a male connector, a female terminal metal fitting including a female connector, and a holding structure that generates holding force therebetween are included. The holding structure includes two first holding bodies that are arranged between the male connector and the female connector in a region and that become contact points therebetween, two second holding bodies that are arranged between the male connector and the female connector in a region and that become contact points therebetween, and a third holding body that is arranged on an opposite side of the first holding bodies in a cylinder axis direction with respect to the second holding bodies and that becomes a contact point between the male connector and the female terminal metal fitting.Type: GrantFiled: June 15, 2018Date of Patent: June 4, 2019Assignees: YAZAKI CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Toshikazu Yoshioka, Yasuhiro Tanaka, Ato Nakano
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Publication number: 20190027854Abstract: A male terminal metal fitting including a male connector, a female terminal metal fitting including a female connector, and a holding structure that generates holding force therebetween are included. The holding structure includes two first holding bodies that are arranged between the male connector and the female connector in a region and that become contact points therebetween, two second holding bodies that are arranged between the male connector and the female connector in a region and that become contact points therebetween, and a third holding body that is arranged on an opposite side of the first holding bodies in a cylinder axis direction with respect to the second holding bodies and that becomes a contact point between the male connector and the female terminal metal fitting.Type: ApplicationFiled: June 15, 2018Publication date: January 24, 2019Applicants: Yazaki Corporation, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Toshikazu YOSHIOKA, Yasuhiro TANAKA, Ato NAKANO
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Patent number: 9979111Abstract: A locking part (13S) which is formed in an end part of a male terminal insertion side of a spring contact is fixed to a fixing part (11S) which is formed in an end part of a female terminal main body (11), and in this state, a joint (11T) at which one end surface and the other end surface which are positioned in a circumferential direction of the female terminal main body face each other, and a joint (T) at which one end surface and the other end surface which are positioned in a circumferential direction of a spring contact (13) each other, are positioned to overlap each other in a radial direction.Type: GrantFiled: October 7, 2014Date of Patent: May 22, 2018Assignee: YAZAKI CORPORATIONInventors: Toshikazu Yoshioka, Yuya Yamada
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Patent number: 9515403Abstract: A female terminal assembly includes: a female terminal body in which a male terminal receiving space is formed internally; and a cylindrical spring contact which is received in the male terminal receiving space from a male terminal insertion side of the female terminal body. A lock portion formed at a male terminal insertion-side end portion of the spring contact is fixed to a male terminal insertion-side end portion of the female terminal body.Type: GrantFiled: December 29, 2015Date of Patent: December 6, 2016Assignee: Yazaki CorporationInventors: Takayoshi Hirakawa, Hidehiko Kuboshima, Toshikazu Yoshioka, Yuya Yamada
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Patent number: 9490567Abstract: A connector includes a housing, a terminal supported inside the housing and having a hollow cylindrical body and a wire connection portion provided on one side of the hollow cylindrical body, an insulating member inserted in the hollow cylindrical body and having, at a front end of the insulating member, a head portion protruding from a front end of the terminal, and a ring attached to a rear end portion of the insulating member protruding from a rear end of the hollow cylindrical body. An outer surface of the rear end portion of the insulating member has a stepped portion on which the ring abuts to restrict a movement of the insulating member in a direction towards the head portion.Type: GrantFiled: November 3, 2015Date of Patent: November 8, 2016Assignee: YAZAKI CORPORATIONInventors: Takayoshi Hirakawa, Toshikazu Yoshioka, Atsunori Iwashita
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Patent number: 9455514Abstract: A female terminal includes a conductive terminal body having a cylindrical portion to which a mating male terminal is to be inserted, and a cylindrical elastic contact member configured to apply a contact pressure to the male terminal when the male terminal is inserted into the terminal body. The elastic contact member comprises a plurality of contact portions which are partitioned by slits extending in an axial direction of the cylindrical portion and the plurality of contact portions are curved toward inside the cylindrical portion. A front end portion of the elastic contact member, to which the male terminal is to be inserted, is connected to the cylindrical portion while a rear end portion of the elastic contact member is made a free end.Type: GrantFiled: October 29, 2015Date of Patent: September 27, 2016Assignee: YAZAKI CORPORATIONInventors: Takayoshi Hirakawa, Toshikazu Yoshioka, Atsunori Iwashita
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Publication number: 20160226171Abstract: A locking part (13S) which is formed in an end part of a male terminal insertion side of a spring contact is fixed to a fixing part (11S) which is formed in an end part of a female terminal main body (11), and in this state, a joint (11T) at which one end surface and the other end surface which are positioned in a circumferential direction of the female terminal main body face each other, and a joint (T) at which one end surface and the other end surface which are positioned in a circumferential direction of a spring contact (13) each other, are positioned to overlap each other in a radial direction.Type: ApplicationFiled: October 7, 2014Publication date: August 4, 2016Inventors: Toshikazu Yoshioka, Yuya Yamada
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Publication number: 20160134044Abstract: A female terminal assembly includes: a female terminal body in which a male terminal receiving space is formed internally; and a cylindrical spring contact which is received in the male terminal receiving space from a male terminal insertion side of the female terminal body. A lock portion formed at a male terminal insertion-side end portion of the spring contact is fixed to a male terminal insertion-side end portion of the female terminal body.Type: ApplicationFiled: December 29, 2015Publication date: May 12, 2016Inventors: Takayoshi Hirakawa, Hidehiko Kuboshima, Toshikazu Yoshioka, Yuya Yamada
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Publication number: 20160126651Abstract: A female terminal includes a conductive terminal body having a cylindrical portion to which a mating male terminal is to be inserted, and a cylindrical elastic contact member configured to apply a contact pressure to the male terminal when the male terminal is inserted into the terminal body. The elastic contact member comprises a plurality of contact portions which are partitioned by slits extending in an axial direction of the cylindrical portion and the plurality of contact portions are curved toward inside the cylindrical portion. A front end portion of the elastic contact member, to which the male terminal is to be inserted, is connected to the cylindrical portion while a rear end portion of the elastic contact member is made a free end.Type: ApplicationFiled: October 29, 2015Publication date: May 5, 2016Applicant: Yazaki CorporationInventors: Takayoshi HIRAKAWA, Toshikazu YOSHIOKA, Atsunori IWASHITA
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Publication number: 20160126657Abstract: A connector includes a housing, a terminal supported inside the housing and having a hollow cylindrical body and a wire connection portion provided on one side of the hollow cylindrical body, an insulating member inserted in the hollow cylindrical body and having, at a front end of the insulating member, a head portion protruding from a front end of the terminal, and a ring attached to a rear end portion of the insulating member protruding from a rear end of the hollow cylindrical body. An outer surface of the rear end portion of the insulating member has a stepped portion on which the ring abuts to restrict a movement of the insulating member in a direction towards the head portion.Type: ApplicationFiled: November 3, 2015Publication date: May 5, 2016Applicant: YAZAKI CORPORATIONInventors: Takayoshi HIRAKAWA, Toshikazu YOSHIOKA, Atsunori IWASHITA
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Publication number: 20120268379Abstract: To provide a technique which involves a key sheet integrally including a light guide sheet and having a plurality of illumination areas, the technique preventing light leakage from the boundary between the individual illumination areas and providing high durability against a repeated pressing operation. A mask layers cover the opening edges of slits of a light guide sheet on the operation surface side. The mask layers can prevent emission of light from the openings of the slits to the outside, the light having leaked from the end faces of the light guide sheet, and the end faces forming the slits. A front sheet and a back side cover can enhance the durability of a base sheet, the front sheet adhering to the light guide sheet so as to cover the slits.Type: ApplicationFiled: November 29, 2010Publication date: October 25, 2012Inventors: Toshikazu Yoshioka, Yasunori Takeda
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Patent number: 7737375Abstract: Disclosed is a key sheet helping to solve problems caused by a rubber-like elastic material filling dividing grooves. A key sheet is provided with protrusions swelling from the back surface of an operation plate toward dividing grooves. The protrusions, which are formed by a film sheet formed of a thermoplastic resin, can prevent the problems when the rubber-like elastic material filling the dividing grooves are exposed, that is, separation or severance of the rubber-like elastic material. Further, nails or fingertips are not easily allowed to enter the dividing grooves of the operation plate. The protrusions in the grooves formed by the film sheet are not easily worn out through repeated depressing operation, thus realizing a thin and safe key sheet.Type: GrantFiled: April 18, 2007Date of Patent: June 15, 2010Assignee: Polymatech Co., Ltd.Inventors: Masaya Katori, Toshikazu Yoshioka, Tedi Kunthady
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Patent number: 7538286Abstract: Provided is a key sheet in which fixation members such as key tops can be firmly fixed to a base sheet. The back surfaces of the key tops are fixed to a film sheet without involving any gaps by means of adhesion layers 11 stacked on the entire back surfaces of the key tops. Thus, fingernails or the like are not easily allowed to get between the key tops and the film sheet, making it possible to prevent the key tops from being unstuck from the film sheet. Further, in the key sheet, the film sheet and a base sheet are integrated with each other, so the key tops can be firmly fixed to the base sheet through an intermediation of the film sheet, making it possible to prevent the key tops from being detached by fingernails or the like at the time of depressing operation.Type: GrantFiled: July 2, 2007Date of Patent: May 26, 2009Assignee: Polymatech Co., Ltd.Inventor: Toshikazu Yoshioka
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Patent number: 7361859Abstract: Disclosed is a thin key sheet that is relatively free from breakage due to depressing operation. When key tops are depressed, float-supporting portions of rubber moldings and a film sheet undergo deformation, and a depression load can be borne by both the float-supporting portions and the film sheet, so the load on the float-supporting portions is mitigated, making the float-supporting portions less subject to breakage. Further, since the film sheet exists between the rubber moldings and a resin plate, it is possible to prevent the rubber moldings from being rubbed against a side wall of a frame portion, making it possible to prevent breakage due to rubbing between the rubber moldings and the resin plate.Type: GrantFiled: April 2, 2007Date of Patent: April 22, 2008Assignee: Polymatech Co. Ltd.Inventors: Toshikazu Yoshioka, Akira Senzui
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Publication number: 20080000767Abstract: Provided is a key sheet in which fixation members such as key tops can be firmly fixed to a base sheet. The back surfaces of the key tops are fixed to a film sheet without involving any gaps by means of adhesion layers 11 stacked on the entire back surfaces of the key tops. Thus, fingernails or the like are not easily allowed to get between the key tops and the film sheet, making it possible to prevent the key tops from being unstuck from the film sheet. Further, in the key sheet, the film sheet and a base sheet are integrated with each other, so the key tops can be firmly fixed to the base sheet through an intermediation of the film sheet, making it possible to prevent the key tops from being detached by fingernails or the like at the time of depressing operation.Type: ApplicationFiled: July 2, 2007Publication date: January 3, 2008Applicant: Polymatech Co., Ltd.Inventor: Toshikazu Yoshioka
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Publication number: 20070246342Abstract: Disclosed is a key sheet helping to solve problems caused by a rubber-like elastic material filling dividing grooves. A key sheet is provided with protrusions swelling from the back surface of an operation plate toward dividing grooves. The protrusions, which are formed by a film sheet formed of a thermoplastic resin, can prevent the problems when the rubber-like elastic material filling the dividing grooves are exposed, that is, separation or severance of the rubber-like elastic material. Further, nails or fingertips are not easily allowed to enter the dividing grooves of the operation plate. The protrusions in the grooves formed by the film sheet are not easily worn out through repeated depressing operation, thus realizing a thin and safe key sheet.Type: ApplicationFiled: April 18, 2007Publication date: October 25, 2007Applicant: Polymatech Co., Ltd.Inventors: Masaya Katori, Tedi Kunthady, Toshikazu Yoshioka
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Publication number: 20070235296Abstract: Disclosed is a thin key sheet that is relatively free from breakage due to depressing operation. When key tops are depressed, float-supporting portions of rubber moldings and a film sheet undergo deformation, and a depression load can be borne by both the float-supporting portions and the film sheet, so the load on the float-supporting portions is mitigated, making the float-supporting portions less subject to breakage. Further, since the film sheet exists between the rubber moldings and a resin plate, it is possible to prevent the rubber moldings from being rubbed against a side wall of a frame portion, making it possible to prevent breakage due to rubbing between the rubber moldings and the resin plate.Type: ApplicationFiled: April 2, 2007Publication date: October 11, 2007Applicant: Polymatech Co., Ltd.Inventors: Toshikazu Yoshioka, Akira Senzui