Patents by Inventor Takashi Yuba
Takashi Yuba 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: 10020620Abstract: There is provided a connector connectable to a mating connector that includes a first jack terminal configured to be coupled to a first plug terminal of the mating connector; a second jack terminal configured to be coupled to a second plug terminal of the mating connector; and a third jack terminal configured to be coupled to the second plug terminal of the mating connector, and having a resistor and a capacitor connected in series thereto. Upon the connector being separated from the mating connector, the second jack terminal is separated from the second plug terminal after the third jack terminal is separated from the second plug terminal, and the first jack terminal is separated from the first plug terminal after the second jack terminal is separated from the second plug terminal.Type: GrantFiled: August 16, 2017Date of Patent: July 10, 2018Assignee: FUJITSU COMPONENT LIMITEDInventors: Takashi Yuba, Koichi Kiryu, Akio Nakamura, Hideo Miyazawa
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Patent number: 9972460Abstract: A connector includes a fixed contact, a movable contact that contacts with the fixed contact, a slide, a contact slide operated in association with a movement of the slide, a button that is pushed in accordance with the movement of the slide, the button including a lower portion, an upper portion, and a slant portion connecting the lower portion to an upper stage, and a card that moves the movable contact toward and away from the fixed contact in accordance with the movement of the button, wherein the contact slide contacts with the lower portion when the switch is in a turn-off state, contacts with the slant portion so as to push the button and cause the card to move the movable contact toward the fixed contact when the slide slides in one direction, and contacts with the upper portion when the switch is in a turn-on state.Type: GrantFiled: November 18, 2015Date of Patent: May 15, 2018Assignees: FUJITSU COMPONENT LIMITED, NTT FACILITIES, INC.Inventors: Daiei Iwamoto, SeungSeok Beak, Takashi Yuba, Koichi Kiryu, Keiichi Hirose, Masatoshi Noritake
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Publication number: 20180019553Abstract: A connector includes two connection terminals to be electrically connected to terminals of another connector, and a switch connected to the connection terminals. The switch includes a first switch connected to one of the connection terminals, the first switch including a first fixed part including a fixed contact, and a first movable part including a movable contact that is contactable by the fixed contact, and a second switch connected to another of the connection terminals, the second switch including a second fixed part including a fixed contact, and a second movable part including a movable contact that is contactable by the fixed contact. The first fixed part and the second fixed part, or the first movable part and the second movable part include multiple contacts.Type: ApplicationFiled: January 13, 2016Publication date: January 18, 2018Inventor: Takashi YUBA
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Publication number: 20170365958Abstract: There is provided a connector connectable to a mating connector that includes a first jack terminal configured to be coupled to a first plug terminal of the mating connector; a second jack terminal configured to be coupled to a second plug terminal of the mating connector; and a third jack terminal configured to be coupled to the second plug terminal of the mating connector, and having a resistor and a capacitor connected in series thereto. Upon the connector being separated from the mating connector, the second jack terminal is separated from the second plug terminal after the third jack terminal is separated from the second plug terminal, and the first jack terminal is separated from the first plug terminal after the second jack terminal is separated from the second plug terminal.Type: ApplicationFiled: August 16, 2017Publication date: December 21, 2017Inventors: Takashi YUBA, Koichi KIRYU, Akio NAKAMURA, Hideo MIYAZAWA
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Patent number: 9793079Abstract: An electromagnetic relay includes a fixed contact, a movable contact corresponding to the fixed contact, a movable element that retains the movable contact and moves in a contacting direction and a separating direction relative to the fixed contact, an axial core coupled to the movable element, a movable core coupled to the axial core to move in the contacting direction and the separating direction relative to a movement of the axial core, a driving part that drives the movable core in the contacting direction, an urging part that exerts force to the axial core in the separating direction, and a constraining part that constrains the relative movement of the axial core in the separating direction.Type: GrantFiled: March 17, 2015Date of Patent: October 17, 2017Assignee: FUJITSU COMPONENT LIMITEDInventors: Kazuo Kubono, Takashi Yuba, Yoichi Hasegawa, Takuji Murakoshi
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Patent number: 9774145Abstract: There is provided a connector comprising: a given-polarity electrode jack terminal coupled to a given-polarity electrode of a power supply; a first other-polarity electrode jack terminal coupled to an other-polarity electrode of the power supply through a resistor and a capacitor; and a second other-polarity electrode jack terminal coupled to the other-polarity electrode of the power supply; wherein the first other-polarity electrode jack terminal and the second other-polarity electrode jack terminal are respectively in contact with a plug terminal of the other-polarity electrode included in another connector, the first other-polarity electrode jack terminal and the second other-polarity electrode jack terminal are disposed on a line extended in a length direction of the plug terminal of the other-polarity electrode, and the first other-polarity electrode jack terminal is disposed at a position closer to the other connector than a position of the second other-polarity electrode jack terminal.Type: GrantFiled: February 8, 2016Date of Patent: September 26, 2017Assignee: FUJITSU COMPONENT LIMITEDInventors: Takashi Yuba, Koichi Kiryu, Akio Nakamura, Hideo Miyazawa
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Patent number: 9607793Abstract: A switch includes a fixed contact part including a fixed contact, a movable contact part including a movable contact, a control button, an operation part including a first end and a second end, and a lock. When the first end is pressed, the control button is pressed by the operation part, the movable contact touches the fixed contact, and the switch becomes an ON state. While the movable contact and the fixed contact are in contact with each other, a first protrusion of the lock touches an engaging part of the control button to limit movement of the control button and maintain the ON state. When the second end is pressed, the operation part touches a second protrusion of the lock and moves the lock in such a direction that the first protrusion moves away from the engaging part, and the switch becomes the OFF state.Type: GrantFiled: October 1, 2013Date of Patent: March 28, 2017Assignees: FUJITSU COMPONENT LIMITED, NTT FACILITIES, INC.Inventors: SeungSeok Beak, Koichi Kiryu, Takashi Yuba, Masatoshi Noritake, Keiichi Hirose
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Patent number: 9466926Abstract: A switch device includes a first contacting portion including a first fixed contact, a first movable contact contactable to the first fixed contact, and a first break contact, the first movable contact being configured to selectively contact one of the first fixed contact and the first break contact; a second contacting portion including a second fixed contact, a second movable contact contactable to the second fixed contact, and a second break contact, the second movable contact being configured to selectively contact one of the second fixed contact and the second break contact; and a mechanical switch that mechanically moves the first movable contact and the second movable contact toward the first fixed contact and the second fixed contact, and toward the first break contact and the second break contact, respectively.Type: GrantFiled: February 14, 2014Date of Patent: October 11, 2016Assignee: FUJITSU COMPONENT LIMITEDInventors: Takashi Yuba, Daiei Iwamoto, SeungSeok Beak, Koichi Kiryu, Akio Nakamura
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Publication number: 20160156138Abstract: There is provided a connector comprising: a given-polarity electrode jack terminal coupled to a given-polarity electrode of a power supply; a first other-polarity electrode jack terminal coupled to an other-polarity electrode of the power supply through a resistor and a capacitor; and a second other-polarity electrode jack terminal coupled to the other-polarity electrode of the power supply; wherein the first other-polarity electrode jack terminal and the second other-polarity electrode jack terminal are respectively in contact with a plug terminal of the other-polarity electrode included in another connector, the first other-polarity electrode jack terminal and the second other-polarity electrode jack terminal are disposed on a line extended in a length direction of the plug terminal of the other-polarity electrode, and the first other-polarity electrode jack terminal is disposed at a position closer to the other connector than a position of the second other-polarity electrode jack terminal.Type: ApplicationFiled: February 8, 2016Publication date: June 2, 2016Inventors: Takashi YUBA, Koichi KIRYU, Akio NAKAMURA, Hideo MIYAZAWA
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Patent number: 9330872Abstract: An electromagnetic relay includes a contact that includes a fixed contact and a movable contact, a permanent magnet provided on the peripheral side of the contact, and a non-magnetic body. The movable contact is displaceable in a first direction to move toward the fixed contact and in a second direction to move away from the fixed contact. The permanent magnet has a polarity direction perpendicular to the first and second directions. The non-magnetic body faces toward the direction of a Lorentz force that acts based on the permanent magnet in a direct electric current flowing through the contact.Type: GrantFiled: April 25, 2014Date of Patent: May 3, 2016Assignees: FUJITSU COMPONENT LIMITED, NATIONAL UNIVERSITY CORPORATION SHIZUOKA UNIVERSITYInventors: Kazuo Kubono, Takashi Yuba, Yoichi Hasegawa, Takuji Murakoshi, Junya Sekikawa
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Publication number: 20160071663Abstract: A connector includes a fixed contact, a movable contact that contacts with the fixed contact, a slide, a contact slide operated in association with a movement of the slide, a button that is pushed in accordance with the movement of the slide, the button including a lower portion, an upper portion, and a slant portion connecting the lower portion to an upper stage, and a card that moves the movable contact toward and away from the fixed contact in accordance with the movement of the button, wherein the contact slide contacts with the lower portion when the switch is in a turn-off state, contacts with the slant portion so as to push the button and cause the card to move the movable contact toward the fixed contact when the slide slides in one direction, and contacts with the upper portion when the switch is in a turn-on state.Type: ApplicationFiled: November 18, 2015Publication date: March 10, 2016Inventors: Daiei IWAMOTO, SeungSeok BEAK, Takashi YUBA, Koichi KIRYU, Keiichi HIROSE, Masatoshi NORITAKE
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Patent number: 9281635Abstract: A connector includes a connecting terminal, a fixed contact, a movable plate, a movable contact provided at an end of the movable plate, a card that includes an insulator and contacts the movable plate, a button that contacts the card, an opening spring connected to the button, and a sliding operation part that controls a contact between the fixed contact and the movable contact. When the sliding operation part is moved in a first direction, the movable contact is brought into contact with the fixed contact and the connector is turned on. When the sliding operation part is moved in a second direction opposite to the first direction, the movable contact is caused to move away from the fixed contact and the connector is turned off. The sliding operation part is provided on a surface that is different from a surface on which the connecting terminal is provided.Type: GrantFiled: August 10, 2012Date of Patent: March 8, 2016Assignees: FUJITSU COMPONENT LIMITED, NTT FACILITIES, INC.Inventors: SeungSeok Beak, Koichi Kiryu, Takashi Yuba, Daiei Iwamoto, Akio Nakamura, Masatoshi Noritake, Keiichi Hirose
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Patent number: 9225125Abstract: A connector includes a terminal to be connected to a terminal of another connector, a fixed contact, a movable contact provided on one end of a movable plate, a card being in contact with the movable plate, a slide portion, a button that contacts with the card and is pushed down according to a movement of the slide portion, and a spring connected to the button and generates force in a direction of separating a contact between the fixed contact and the movable contact. One of the fixed contact and the movable contact is connected to the terminal. The button is pushed down and the card moves to move the movable plate to cause the movable contact to contact with the fixed contact when the slide portion moves in one direction, and the movable contact is separated from the fixed contact when the slide portion moves in another direction.Type: GrantFiled: July 19, 2011Date of Patent: December 29, 2015Assignees: FUJITSU COMPONENT LIMITED, NTT FACILITIES, INC.Inventors: Daiei Iwamoto, SeungSeok Beak, Takashi Yuba, Koichi Kiryu, Keiichi Hirose, Masatoshi Noritake
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Patent number: 9160107Abstract: A connector includes a connecting terminal to be connected to another connecting terminal of another connector, a fixed contact, a movable contact provided at one end of a movable plate, a movable spring connected to the movable plate, and an operation part that moves according to an operation performed by an operator. The connecting terminal is connected to one of the fixed contact and the movable contact. The operation part applies a force to a part of the movable spring in a direction that is substantially parallel to a direction of a force applied to operate the operation part, and causes the movable contact to contact the fixed contact. The direction of the force applied to operate the operation part is substantially parallel to a direction in which the movable contact moves.Type: GrantFiled: August 10, 2012Date of Patent: October 13, 2015Assignees: FUJITSU COMPONENT LIMITED, NTT FACILITIES, INC.Inventors: SeungSeok Beak, Koichi Kiryu, Takashi Yuba, Daiei Iwamoto, Akio Nakamura, Masatoshi Noritake, Keiichi Hirose
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Patent number: 9159515Abstract: An electromagnetic relay includes: a yoke capable of changing a magnetic pole thereof by an electromagnet; an armature that is magnetized by a permanent magnet and contacts with or separates from the yoke in accordance with the magnetic pole of the yoke; a movable contact that contacts with a fixing contact; an elastic body that biases the movable contact; and a pressing member that presses the elastic body in accordance with a movement of the armature to cause the movable contact to at least contact with or separate from the fixing contact, wherein a cover fixing the permanent magnet and the armature, and the pressing member are integrally formed.Type: GrantFiled: April 3, 2013Date of Patent: October 13, 2015Assignee: FUJITSU COMPONENT LIMITEDInventors: Daiei Iwamoto, Takashi Yuba
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Publication number: 20150287558Abstract: A switch includes a fixed contact part including a fixed contact, a movable contact part including a movable contact, a control button, an operation part including a first end and a second end, and a lock. When the first end is pressed, the control button is pressed by the operation part, the movable contact touches the fixed contact, and the switch becomes an ON state. While the movable contact and the fixed contact are in contact with each other, a first protrusion of the lock touches an engaging part of the control button to limit movement of the control button and maintain the ON state. When the second end is pressed, the operation part touches a second protrusion of the lock and moves the lock in such a direction that the first protrusion moves away from the engaging part, and the switch becomes the OFF state.Type: ApplicationFiled: October 1, 2013Publication date: October 8, 2015Inventors: SeungSeok Beak, Koichi Kiryu, Takashi Yuba, Masatoshi Noritake, Keiichi Hirose
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Publication number: 20150279600Abstract: An electromagnetic relay includes a first fixed spring including a first fixed contact, a second fixed spring including a second fixed contact, a movable spring including a spring, a first movable contact is connected a first end of the spring, and a second movable contact is connected to a second end of the spring, and a conductive member, one end connected to the first movable contact and another end connected to the second movable contact.Type: ApplicationFiled: March 24, 2015Publication date: October 1, 2015Inventors: Nobuyoshi Hiraiwa, Masato Morimura, Kazuo Kubono, Takashi Yuba
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Publication number: 20150187527Abstract: An electromagnetic relay includes a fixed contact, a movable contact corresponding to the fixed contact, a movable element that retains the movable contact and moves in a contacting direction and a separating direction relative to the fixed contact, an axial core coupled to the movable element, a movable core coupled to the axial core to move in the contacting direction and the separating direction relative to a movement of the axial core, a driving part that drives the movable core in the contacting direction, an urging part that exerts force to the axial core in the separating direction, and a constraining part that constrains the relative movement of the axial core in the separating direction.Type: ApplicationFiled: March 17, 2015Publication date: July 2, 2015Inventors: Kazuo KUBONO, Takashi YUBA, Yoichi HASEGAWA, Takuji MURAKOSHI
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Patent number: 8878091Abstract: A switch device includes first and second contacting portions including first and fixed contacting portions and first and second movable contacting portions, respectively, the first fixed contacting portion and the second fixed contacting portion being configured to be electrically connected to one of a power source and an electronic device while the first movable contacting portion and the second movable contacting portion are configured to be electrically connected to the other of the power source and the electronic device; and first and second electric arc voltage suppression units configured to be electrically connected to the first and second fixed contacting portions and the first and second movable contacting portions for suppressing generation of electric arcs there between, respectively.Type: GrantFiled: July 5, 2012Date of Patent: November 4, 2014Assignee: Fujitsu Component LimitedInventors: Takashi Yuba, Daiei Iwamoto, SeungSeok Beak, Koichi Kiryu, Akio Nakamura
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Patent number: 8841572Abstract: A switch device includes first and second contacting portions including first and second fixed contacting portions and first and second movable contacting portions configured to contact the first and second fixed contacting portions, respectively and provided to be adjacent from each other; and a magnet unit provided such that a first pole is positioned to face the first contacting portion and a second pole is positioned to face the second contacting portion to generate magnetic fields between the first fixed contacting portion and the first movable contacting portion and between the second fixed contacting portion and the second movable contacting portion, respectively.Type: GrantFiled: July 5, 2012Date of Patent: September 23, 2014Assignee: Fujitsu Component LimitedInventors: Daiei Iwamoto, Takashi Yuba, Koichi Kiryu, SeungSeok Beak, Akio Nakamura