Patents by Inventor Daisuke Kosugi
Daisuke Kosugi 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: 10327304Abstract: A light emitting device for a vehicle includes a substrate; a light emitting element which is provided on the substrate; a resistive element which is provided on the substrate, and connected in series with the light emitting element; and a thermistor which is provided on the substrate. The thermistor has a positive temperature coefficient, and is connected in parallel with the resistive element.Type: GrantFiled: June 28, 2016Date of Patent: June 18, 2019Assignee: Toshiba Lighting & Technology CorporationInventors: Daisuke Kosugi, Atsushi Heike
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Patent number: 10309609Abstract: A lighting device for a vehicle includes a plate-shaped flange; a placing portion provided on a first face of the flange; a light emitting module provided at an end face of the placing portion, and which includes a light emitting element; and a plurality of heat radiating fins formed in a plate shape, and which is provided on a second face of the flange on a side opposite to the first face. Also, the device includes a plurality of first protrusion portions provided on the second face of the flange in a line, in a direction intersecting a direction in which the plurality of heat radiating fins are aligned; and a second protrusion portion which is provided on the second face of the flange on a side opposite to the plurality of first protrusion portions, by interposing the plurality of heat radiating fins therebetween.Type: GrantFiled: August 9, 2017Date of Patent: June 4, 2019Assignee: Toshiba Lighting & Technology CorporationInventors: Toshihiro Hatanaka, Ryuji Tsuchiya, Daisuke Kosugi
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Patent number: 10279727Abstract: According to one embodiment, a vehicle lighting device includes a plurality of circuit portions each of which has at least one light emitting element; and a control portion that is electrically connected to the plurality of the circuit portions. The control portion connects the plurality of the circuit portions in series if an input voltage exceeds a predetermined value, and connects at least a part of the plurality of the circuit portions in parallel if the input voltage is equal to or less than the predetermined value. The predetermined value is a value equal to or more than a voltage corresponding to a current value used for failure determination of the vehicle lighting device.Type: GrantFiled: February 23, 2018Date of Patent: May 7, 2019Assignee: Toshiba Lighting & Technology CorporationInventors: Daisuke Kosugi, Atsushi Heike
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Patent number: 10278259Abstract: According to one embodiment, a vehicular lighting device includes a socket, a substrate provided on one end side of the socket, at least one light emitting element provided on the substrate, a Zener diode provided on the substrate, and a controller provided on the substrate. The controller shuts off a current flowing through the light emitting element based on a voltage or a current on an anode side of the Zener diode.Type: GrantFiled: July 13, 2018Date of Patent: April 30, 2019Assignee: Toshiba Lighting & Technology CorporationInventors: Daisuke Kosugi, Atsushi Heike
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Publication number: 20190077301Abstract: According to one embodiment, a vehicle lighting device includes a plurality of circuit portions each of which has at least one light emitting element; and a control portion that is electrically connected to the plurality of the circuit portions. The control portion connects the plurality of the circuit portions in series if an input voltage exceeds a predetermined value, and connects at least a part of the plurality of the circuit portions in parallel if the input voltage is equal to or less than the predetermined value. The predetermined value is a value equal to or more than a voltage corresponding to a current value used for failure determination of the vehicle lighting device.Type: ApplicationFiled: February 23, 2018Publication date: March 14, 2019Applicant: Toshiba Lighting & Technology CorporationInventors: Daisuke Kosugi, Atsushi Heike
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Patent number: 10212786Abstract: According to one embodiment, a vehicle lighting device includes a first circuit portion that has at least one light emitting element and a first resistor connected in series to the light emitting element; a second circuit portion that is connected in parallel to the first circuit portion and has at least a control portion; and a third circuit portion that is connected in series to the first circuit portion and the second circuit portion, and has at least one light emitting element. The control portion measures an input voltage and causes a current to flow through the third circuit portion in a case where the measured input voltage is a predetermined value.Type: GrantFiled: October 23, 2017Date of Patent: February 19, 2019Assignee: Toshiba Lighting & Technology CorporationInventors: Daisuke Kosugi, Atsushi Heike
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Publication number: 20190049085Abstract: According to one embodiment, a lighting device for vehicles includes a mounting unit including a recessed portion which is provided on one face of a flange, and is open to an end face on a side opposite to a side of the flange; a substrate which is provided on a lower face side of the recessed portion, and includes a light emitting element on a face on the side opposite to a side of the flange; and a plurality of power feeding terminals which protrude from the lower face of the recessed portion, and are soldered to a wiring pattern provided on the substrate, in which a notch portion is provided at a portion on a side face of the recessed portion which faces the plurality of power feeding terminals.Type: ApplicationFiled: March 1, 2018Publication date: February 14, 2019Applicant: Toshiba Lighting & Technology CorporationInventors: Masayuki Ishiyama, Ryuji Tsuchiya, Kiyokazu Hino, Toshihiro Hatanaka, Daisuke Kosugi, Hiromitsu Shiraishi, Takashi Kaneko, Kazuhisa Iwashita
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Patent number: 10203080Abstract: According to one embodiment, a lighting device for vehicles includes a mounting unit including a recessed portion which is provided on one face of a flange, and is open to an end face on a side opposite to a side of the flange; a substrate which is provided on a lower face side of the recessed portion, and includes a light emitting element on a face on the side opposite to a side of the flange; and a plurality of power feeding terminals which protrude from the lower face of the recessed portion, and are soldered to a wiring pattern provided on the substrate, in which a notch portion is provided at a portion on a side face of the recessed portion which faces the plurality of power feeding terminals.Type: GrantFiled: March 1, 2018Date of Patent: February 12, 2019Assignee: Toshiba Lighting & Technology CorporationInventors: Masayuki Ishiyama, Ryuji Tsuchiya, Kiyokazu Hino, Toshihiro Hatanaka, Daisuke Kosugi, Hiromitsu Shiraishi, Takashi Kaneko, Kazuhisa Iwashita
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Patent number: 10197237Abstract: A lighting device according to an embodiment includes a socket unit, a light emitting unit, and a lid unit. The light emitting unit is provided in an accommodation unit of the socket unit, and includes a light emitting element. The lid unit closes the accommodation unit of the socket unit, and is formed with an opening portion which causes light radiated from the light emitting element to pass through. An end face of the light emitting unit on the opening portion side overlaps with the opening portion in the thickness direction of the lid unit, and is located on the light emitting unit side rather than an end face of the lid unit on a side opposite to the light emitting unit side.Type: GrantFiled: September 20, 2013Date of Patent: February 5, 2019Assignee: TOSHIBA LIGHTING & TECHNOLOGY CORPORATIONInventors: Daisuke Kosugi, Ryuji Tsuchiya, Toshihiro Hatanaka
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Patent number: 10023108Abstract: A vehicle lamp includes a housing where a lighting device is disposed, and a fixing unit pressing the lighting device against the housing. The lighting device has a flange, a storage portion protruding from one surface of the flange, and a light-emitting module received in the storage portion opposite to the flange. The storage portion is received in a hole of the housing such that the fixing unit presses the flange against the housing in a peripheral edge of the hole.Type: GrantFiled: October 19, 2015Date of Patent: July 17, 2018Assignee: Toshiba Lighting & Technology CorporationInventors: Takashi Kaneko, Kiyokazu Hino, Masayuki Ishiyama, Hiromitsu Shiraishi, Daisuke Kosugi, Toshihiro Hatanaka
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Patent number: 9961748Abstract: According to one embodiment, a vehicle lighting device includes a first circuit portion that has at least one light emitting element and a first resistor connected in series to the light emitting element; a second circuit portion that is connected in parallel to the first circuit portion and has at least a control portion; and a third circuit portion that is connected in series to the first circuit portion and the second circuit portion, and has at least one light emitting element. The control portion measures an input voltage and causes a current to flow through the third circuit portion in a case where the measured input voltage is a predetermined value.Type: GrantFiled: January 27, 2017Date of Patent: May 1, 2018Assignee: Toshiba Lighting & Technology CorporationInventors: Daisuke Kosugi, Atsushi Heike
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Publication number: 20180058667Abstract: According to one embodiment, a vehicle lighting device includes a base body that has a plate shape and includes a first portion, and a second portion having a width dimension smaller than a width dimension of the first portion; a wiring pattern that is provided on surfaces of the first portion and the second portion; and a light emitting element that is electrically connected to the wiring pattern provided in the first portion.Type: ApplicationFiled: March 2, 2017Publication date: March 1, 2018Applicant: Toshiba Lighting & Technology CorporationInventors: Yohei Matsuda, Ryuji Tsuchiya, Daisuke Kosugi
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Publication number: 20180051858Abstract: According to one embodiment, a lighting device for vehicle includes a plate-shaped flange; a placing portion which is provided on a first face of the flange; a light emitting module which is provided at an end face of the placing portion, and includes a light emitting element; a plurality of heat radiating fins which are formed in a plate shape, and are provided on a second face of the flange on a side opposite to the first face; a plurality of first protrusion portions which are provided on the second face of the flange in a line, in a direction intersecting a direction in which the plurality of heat radiating fins are aligned; and a second protrusion portion which is provided on the second face of the flange on a side opposite to the plurality of first protrusion portions, by interposing the plurality of heat radiating fins therebetween.Type: ApplicationFiled: August 9, 2017Publication date: February 22, 2018Applicant: Toshiba Lighting & Technology CorporationInventors: Toshihiro Hatanaka, Ryuji Tsuchiya, Daisuke Kosugi
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Publication number: 20180049295Abstract: According to one embodiment, a vehicle lighting device includes a first circuit portion that has at least one light emitting element and a first resistor connected in series to the light emitting element; a second circuit portion that is connected in parallel to the first circuit portion and has at least a control portion; and a third circuit portion that is connected in series to the first circuit portion and the second circuit portion, and has at least one light emitting element. The control portion measures an input voltage and causes a current to flow through the third circuit portion in a case where the measured input voltage is a predetermined value.Type: ApplicationFiled: October 23, 2017Publication date: February 15, 2018Inventors: Daisuke Kosugi, Atsushi Heike
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Publication number: 20180029527Abstract: According to one embodiment, a vehicle lighting device includes a plurality of circuit portions that have at least one light emitting element; and a control portion that is electrically connected to the plurality of circuit portions. The control portion detects an input voltage and connects the plurality of circuit portions in series when the detected input voltage exceeds a predetermined value and connects at least a part of the plurality of circuit portions in parallel when the detected input voltage is equal to or less than the predetermined value.Type: ApplicationFiled: March 9, 2017Publication date: February 1, 2018Applicant: Toshiba Lighting & Technology CorporationInventors: Daisuke Kosugi, Atsushi Heike
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Publication number: 20170343180Abstract: According to one embodiment, a vehicle lighting device includes a mounting portion that has a recessed portion; a plurality of bayonets that are provided on an outside surface of the mounting portion; a substrate that is provided on a bottom surface of the recessed portion; and a light emitting element that is provided on a side of the substrate opposite to a bottom surface side of the recessed portion. In a case where the vehicle lighting device is viewed from a light emitting side, at least one corner portion of the substrate overlaps with any one of the plurality of bayonets.Type: ApplicationFiled: February 9, 2017Publication date: November 30, 2017Applicant: Toshiba Lighting & Technology CorporationInventors: Masayuki Ishiyama, Ryuji Tsuchiya, Kiyokazu Hino, Takashi Kaneko, Daisuke Kosugi, Toshihiro Hatanaka, Hiromitsu Shiraishi
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Publication number: 20170223805Abstract: According to one embodiment, a vehicle lighting device includes a first circuit portion that has at least one light emitting element and a first resistor connected in series to the light emitting element; a second circuit portion that is connected in parallel to the first circuit portion and has at least a control portion; and a third circuit portion that is connected in series to the first circuit portion and the second circuit portion, and has at least one light emitting element. The control portion measures an input voltage and causes a current to flow through the third circuit portion in a case where the measured input voltage is a predetermined value.Type: ApplicationFiled: January 27, 2017Publication date: August 3, 2017Applicant: Toshiba Lighting & Technology CorporationInventors: Daisuke Kosugi, Atsushi Heike
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Publication number: 20170146213Abstract: According to one embodiment, a vehicle lighting device includes a loading portion; a substrate provided on one end side of the loading portion; a plurality of light emitting elements that are electrically connected to a wiring pattern provided on a surface of the substrate and provided side by side in a row in a first direction; and a plurality of power supply terminals that are electrically connected to the wiring pattern provided on the surface of the substrate and provided side by side in a row in a second direction perpendicular to the first direction.Type: ApplicationFiled: September 20, 2016Publication date: May 25, 2017Applicant: Toshiba Lighting & Technology CorporationInventors: Daisuke Kosugi, Toshihiro Hatanaka
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Patent number: 9618188Abstract: A light emitting device according to an embodiment includes: a main body section; a light emitting section provided in the main body section and including a light emitting element; a cover provided on a side of the main body section where the light emitting section is provided; and an adhesive section provided between the main body section and the cover in a part of a region on the side of the main body section where the light emitting section is provided.Type: GrantFiled: August 23, 2013Date of Patent: April 11, 2017Assignee: Toshiba Lighting & Technology CorporationInventors: Toshihiro Hatanaka, Ryuji Tsuchiya, Tomohiro Mizoguchi, Daisuke Kosugi
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Publication number: 20170009953Abstract: According to one embodiment, a light emitting device for vehicle includes a substrate; a light emitting element which is provided on the substrate; a resistive element which is provided on the substrate, and is connected in series to the light emitting element; and a thermistor which is provided on the substrate, has a positive temperature coefficient, and is connected in parallel to the resistive element.Type: ApplicationFiled: June 28, 2016Publication date: January 12, 2017Applicant: Toshiba Lighting & Technology CorporationInventors: Daisuke Kosugi, Atsushi Heike