Patents by Inventor Yuki Kakoiyama
Yuki Kakoiyama 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: 20230420205Abstract: A relay is described that comprises, for example, an electromagnet having a coil wounded on a winding frame and an iron core positioned in the winding frame, a movable terminal having an armature actuated by activation of the electromagnet, a movable spring attached to the armature and a movable contact attached to the movable spring, and a fixed contact opposed to the movable contact. The armature has a shape in which both ends of the armature in a direction perpendicular to an axial direction of the iron core are recessed relative to a center of the armature, and the armature does not exist in a thickness direction of a site which is cut to form the movable spring.Type: ApplicationFiled: September 13, 2023Publication date: December 28, 2023Inventors: Takaki Sunohara, Yuki Kakoiyama
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Publication number: 20230068018Abstract: Provided is a relay having a structure for preventing deformation of a movable spring when it is caulked. A yoke of the relay has a protrusion for caulking inserted in the movable spring, and a bulge portion adjacent to the protrusion and having a height lower than a height of the protrusion. By providing the bulge portion to the yoke, the dimensional change in the caulking direction of the movable spring when the movable contact is caulked can be reduced.Type: ApplicationFiled: October 26, 2022Publication date: March 2, 2023Inventors: Takaki Sunohara, Yuki Kakoiyama
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Patent number: 11521816Abstract: Provided is a relay having a structure for preventing deformation of a movable spring when it is caulked. A yoke of the relay has a protrusion for caulking inserted in the movable spring, and a bulge portion adjacent to the protrusion and having a height lower than a height of the protrusion. By providing the bulge portion to the yoke, the dimensional change in the caulking direction of the movable spring when the movable contact is caulked can be reduced.Type: GrantFiled: December 17, 2020Date of Patent: December 6, 2022Assignee: FUJITSU COMPONENT LIMITEDInventors: Takaki Sunohara, Yuki Kakoiyama
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Publication number: 20210193420Abstract: Provided is a relay comprising an electromagnet having a coil wounded on a winding frame, a movable contact moved by activation of the electromagnet, a fixed contact opposed to the movable contact, and a flange formed on an axial end of the winding frame. The flange has an inswept tapered shape, and at least a part of an outer peripheral portion of the flange has a chamfered shape or a rounded shape.Type: ApplicationFiled: December 17, 2020Publication date: June 24, 2021Inventors: Takaki Sunohara, Yuki Kakoiyama
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Publication number: 20210193418Abstract: Provided is a relay having a structure for preventing deformation of a movable spring when it is caulked. A yoke of the relay has a protrusion for caulking inserted in the movable spring, and a bulge portion adjacent to the protrusion and having a height lower than a height of the protrusion. By providing the bulge portion to the yoke, the dimensional change in the caulking direction of the movable spring when the movable contact is caulked can be reduced.Type: ApplicationFiled: December 17, 2020Publication date: June 24, 2021Inventors: Takaki Sunohara, Yuki Kakoiyama
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Publication number: 20210193419Abstract: A relay is described that comprises, for example, an electromagnet having a coil wounded on a winding frame and an iron core positioned in the winding frame, a movable terminal having an armature actuated by activation of the electromagnet, a movable spring attached to the armature and a movable contact attached to the movable spring, and a fixed contact opposed to the movable contact. The armature has a shape in which both ends of the armature in a direction perpendicular to an axial direction of the iron core are recessed relative to a center of the armature, and the armature does not exist in a thickness direction of a site which is cut to form the movable spring.Type: ApplicationFiled: December 17, 2020Publication date: June 24, 2021Inventors: Takaki Sunohara, Yuki Kakoiyama
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Patent number: 9653236Abstract: An electromagnetic relay which is improved in arc blocking performance without being increased in size is desired. An electromagnetic relay according to the present invention is provided with a fixed contact, a moving contact which is movable respect to the fixed contact, a pair of magnets which is arranged at the side of the fixed contact and the moving contact so that pole faces with mutually reversed polarity are separated from and face each other and a pair of arc cooling plates which is arranged in a spaces between the magnets and which has first surfaces which face each other across a gap and second surfaces which face a pole face of either of the magnets, respectively.Type: GrantFiled: June 28, 2013Date of Patent: May 16, 2017Assignee: FUJITSU COMPONENT LIMITEDInventors: Nobuyoshi Hiraiwa, Yasushi Saito, Kazutaka Nagamine, Yuki Kakoiyama, Yanfeng Wu
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Patent number: 9007156Abstract: An electromagnetic relay includes a first stationary contact; a second stationary contact that is aligned with the first stationary contact in a first direction; a first movable contact that is movable toward/away from the first stationary contact in a second direction perpendicular to the first direction; a second movable contact that is movable toward/away from the second stationary contact in the second direction; and a first permanent magnet and a second permanent magnet that face each other. A first contact part, formed by the first stationary contact and the first movable contact, and a second contract part, formed by the second stationary contact and the second movable contact, are interposed between the first permanent magnet and the second permanent magnet in the first direction. The first permanent magnet and the second permanent magnet extend in a third direction, which is perpendicular to the first direction and the second direction.Type: GrantFiled: December 3, 2013Date of Patent: April 14, 2015Assignee: Fujitsu Component LimitedInventors: Nobuyoshi Hiraiwa, Yasushi Saito, Yuki Kakoiyama, Yanfeng Wu
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Publication number: 20140159837Abstract: An electromagnetic relay includes a first stationary contact; a second stationary contact that is aligned with the first stationary contact in a first direction; a first movable contact that is movable toward/away from the first stationary contact in a second direction perpendicular to the first direction; a second movable contact that is movable toward/away from the second stationary contact in the second direction; and a first permanent magnet and a second permanent magnet that face each other. A first contact part, formed by the first stationary contact and the first movable contact, and a second contract part, formed by the second stationary contact and the second movable contact, are interposed between the first permanent magnet and the second permanent magnet in the first direction. The first permanent magnet and the second permanent magnet extend in a third direction, which is perpendicular to the first direction and the second direction.Type: ApplicationFiled: December 3, 2013Publication date: June 12, 2014Applicant: FUJITSU COMPONENT LIMITEDInventors: Nobuyoshi Hiraiwa, Yasushi Saito, Yuki Kakoiyama, Yanfeng Wu
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Publication number: 20140151337Abstract: An electromagnetic relay which is improved in arc blocking performance without being increased in size is desired. An electromagnetic relay according to the present invention is provided with a fixed contact, a moving contact which is movable respect to the fixed contact, a pair of magnets which is arranged at the side of the fixed contact and the moving contact so that pole faces with mutually reversed polarity are separated from and face each other and a pair of arc cooling plates which is arranged in a spaces between the magnets and which has first surfaces which face each other across a gap and second surfaces which face a pole face of either of the magnets, respectively.Type: ApplicationFiled: June 28, 2013Publication date: June 5, 2014Applicant: FUJITSU COMPONENT LIMITEDInventors: Nobuyoshi Hiraiwa, Yasushi Saito, Kazutaka Nagamine, Yuki Kakoiyama, Yanfeng Wu