Patents by Inventor Atsushi Heike
Atsushi Heike 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: 20220229388Abstract: A heater according to an embodiment includes a substrate, a first wiring, a second wiring, and a plurality of first heating elements. Each first heating element includes an inclined portion, a first connecting portion, and a second connecting portion. When viewed from a direction perpendicular to the one surface of the substrate, the inclined portion is provided between the first wiring and the second wiring and inclined with respect to the first direction. An angle between the first (second) connecting portion side and the first (second) wiring side on an inclined portion side is larger than an angle between the first (second) wiring side on the inclined portion side and the inclined portion side on one (the other) side of the first direction where an angle between the inclined portion side and the first (second) wiring side on the inclined portion side is 90° or less.Type: ApplicationFiled: August 12, 2021Publication date: July 21, 2022Applicant: Toshiba Lighting & Technology CorporationInventors: Shinjiro Aono, Atsushi Heike, Masahiko Tamai, Yoshitatsu Matsui, Satoko Kato
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Patent number: 10654404Abstract: 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: GrantFiled: March 9, 2017Date of Patent: May 19, 2020Assignee: Toshiba Lighting & Technology CorporationInventors: Daisuke Kosugi, Atsushi Heike
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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: 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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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: 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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Patent number: 9821712Abstract: A vehicle interior lighting device according to an embodiment includes a housing, a cover provided on one end portion side of the housing, a light-emitting section provided on the inside of the housing, and a detecting section provided on the inside of the housing and configured to detect, via the cover, a change in energy involved in a motion of an operator and convert the detected change in the energy into an electric signal.Type: GrantFiled: June 24, 2016Date of Patent: November 21, 2017Assignee: Toshiba Lighting & Technology CorporationInventor: Atsushi Heike
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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: 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
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Publication number: 20160375824Abstract: A vehicle interior lighting device according to an embodiment includes a housing, a cover provided on one end portion side of the housing, a light-emitting section provided on the inside of the housing, and a detecting section provided on the inside of the housing and configured to detect, via the cover, a change in energy involved in a motion of an operator and convert the detected change in the energy into an electric signal.Type: ApplicationFiled: June 24, 2016Publication date: December 29, 2016Inventor: Atsushi HEIKE
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Publication number: 20150180202Abstract: A solid-state lighting device includes light source, light emitting, light receiving and light guiding sections, and a protection circuit. The light source section has a semiconductor laser including a light emitting layer and a driving circuit. The light source section emits light with a bluish purple to blue wavelength range. The light emitting section includes a heat conduction part which includes a wavelength conversion layer absorbs the light and emits wavelength-converted light, and an optical part which guides the light. The light receiving section detects returning light from the optical part. The light guiding section guides the light from the light source section toward the optical part, and guides returning light therefrom toward the light receiving section. The protection circuit outputs a driving stop signal to the driving circuit, which stops driving the semiconductor laser, if the amount of the returning light detected is not within a prescribed range.Type: ApplicationFiled: December 21, 2012Publication date: June 25, 2015Applicant: TOSHIBA LIGHTING & TECHNOLOGY CORPORATIONInventors: Masato Ishikawa, Atsushi Heike
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Patent number: 6392367Abstract: A DC power source is connected to a base of a transistor of each of inverter circuit through a resistance in series. A primary winding having an intermediate tap of an inverter transformer, a resonance capacitor and a primary winding of a synchronization transformer are connected together in parallel between collectors of a pair of transistors having grounded emitters.Type: GrantFiled: December 13, 2000Date of Patent: May 21, 2002Assignee: Harison Toshiba Lighting Co., Ltd.Inventors: Atsushi Heike, Tomohiro Mizoguchi
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Publication number: 20020047530Abstract: A DC power source is connected to a base of a transistor of each of inverter circuits through a resistance in series. A primary winding having an intermediate tap of an inverter transformer, a resonance capacitor and a primary winding of a synchronization transformer are connected together in parallel between collectors of a pair of transistors having grounded emitters. Secondary windings of the synchronization transformers of the inverter circuits are connected together in parallel.Type: ApplicationFiled: December 13, 2000Publication date: April 25, 2002Inventors: Atsushi Heike, Tomohiro Mizoguchi