Patents by Inventor Tsuyoshi Oyaizu
Tsuyoshi Oyaizu 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: 20150084076Abstract: According to one embodiment, a light emitting module includes: a semiconductor light emitting element and an incident suppression section. The semiconductor light emitting element includes a base material and a light emitting layer. The base material is formed of a material absorbing light and is provided on a substrate. The light emitting layer is provided on the base material and emits the light. The incident suppression section is provided around the base material and suppresses light among the light that is emitted from the light emitting layer from being incident on the base material.Type: ApplicationFiled: March 19, 2014Publication date: March 26, 2015Applicant: Toshiba Lighting & Technology CorporationInventors: Tsuyoshi Oyaizu, Yoshiko Takahashi, Masahiro Fujita
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Publication number: 20150084077Abstract: According to one embodiment, a light emitting module includes a semiconductor light emitting element and a heat radiating section. The semiconductor light emitting element includes a base material and a light emitting layer. The base material is formed of a material absorbing light and is provided on a substrate. The light emitting layer is provided on the base material and emits the light. The heat radiating section is provided around the base material and radiates heat that is generated in the light emitting layer to the substrate by receiving the heat through the base material.Type: ApplicationFiled: March 19, 2014Publication date: March 26, 2015Applicant: TOSHIBA LIGHTING & TECHNOLOGY CORPORATIONInventor: Tsuyoshi Oyaizu
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Publication number: 20140286006Abstract: A light-emitting module according to an embodiment includes a plurality of kinds of light-emitting elements having different light emission colors. The light-emitting module according to the embodiment includes a substrate including an arrangement surface on which the light-emitting elements are arranged, the different kinds of light-emitting elements being alternately arranged in a plurality of directions on the arrangement surface.Type: ApplicationFiled: September 16, 2013Publication date: September 25, 2014Applicant: TOSHIBA LIGHTING & TECHNOLOGY CORPORATIONInventor: Tsuyoshi Oyaizu
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Publication number: 20140286007Abstract: According to one embodiment, a light-emitting module includes a plurality of kinds of light-emitting elements having different light emission colors. The light-emitting module includes a substrate on which a plurality of light-emitting element groups are dispersedly arranged, each of the light-emitting element groups organized of the same kind of light-emitting elements, that are at least one kind of light-emitting elements among the plurality of kinds of light-emitting elements, which are close to each other to constitute one group.Type: ApplicationFiled: September 16, 2013Publication date: September 25, 2014Applicant: TOSHIBA LIGHTING & TECHNOLOGY CORPORATIONInventor: Tsuyoshi Oyaizu
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Publication number: 20140231847Abstract: A light emitting module according to one embodiment includes a substrate; a light emitting body disposed on the substrate; a first phosphor which is excited by emitted light of the light emitting body; and a second phosphor which is arranged between the first phosphor and the light emitting body. The first phosphor has a light emitting peak whose half-value width is 20 nm or less in a wavelength range from 610 nm to less than 650 nm. The second phosphor is excited by the emitted light of the light emitting body, and has the light emitting peak in the wavelength range between a peak wavelength of a light emitting spectrum of the light emitting body and the peak wavelength of the light emitting spectrum of the first phosphor.Type: ApplicationFiled: September 19, 2013Publication date: August 21, 2014Applicant: Toshiba Lighting & Technology CorporationInventors: Miho Watanabe, Tsuyoshi Oyaizu
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Publication number: 20140218908Abstract: To improve an angular color difference and emit uniform illumination light. According to an embodiment, a light-emitting device in an embodiment includes a light-emitting module (15). The light-emitting module (15) includes a substrate (21), a plurality of light-emitting elements (45) made of semiconductor, and a plurality of sealing members (54). The light-emitting elements (45) are disposed on the substrate (21). The sealing members (54) contain, as a main component, translucent resin mixed with a phosphor. The sealing members (54) are heaped up from the bottom surfaces thereof bonded on the substrate (21) and are each formed to bury a singularity or a plurality of the light-emitting elements (45). A ratio (H/D) of a diameter D of the bottom surfaces to height H of the heaps of the sealing members (54) is set to 0.22 to 1.0.Type: ApplicationFiled: July 29, 2011Publication date: August 7, 2014Applicant: TOSHIBA LIGHTING & TECHNOLOGY CORPORATIONInventors: Seiko Kawashima, Tsuyoshi Oyaizu, Hiroki Tamai, Yumiko Hayashida, Shuhei Matsuda, Soichi Shibusawa, Masahiro Ogata, Kozo Uemura, Kiyoshi Nishimura
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Patent number: 8727568Abstract: According to one embodiment, a light-emitting apparatus includes a substrate, an attachment member, and a mechanical fixing component. The substrate has light-emitting elements mounted on one surface side thereof. The attachment member includes a concave portion in which the substrate is arranged with a gap between the substrate and a side circumference of the concave portion. The mechanical fixing component includes a pressure portion that is in contact with the one surface side of the substrate, the mechanical fixing component being configured to hold the substrate in the concave portion of the attachment member by elastic pressing force of the pressure portion acting in a direction from the one surface side toward the other surface side of the substrate.Type: GrantFiled: July 28, 2011Date of Patent: May 20, 2014Assignee: Toshiba Lighting & Technology CorporationInventors: Tsuyoshi Oyaizu, Haruki Takei, Seiko Kawashima
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Patent number: 8716943Abstract: According to one embodiment, a light-emitting device includes a substrate including an insulating surface, a plurality of light-emitting elements mounted on the surface of the substrate and electrically connected to each other, a positive power feeding conductor and a negative power feeding conductor mounted on the surface of the substrate to feed power to the light-emitting elements, lead-out terminals leading from the power feeding conductors, to the outside of an mounting area of the light-emitting elements, and an anti-noise part connected to the lead-out terminals and arranged outside the mounting area.Type: GrantFiled: February 15, 2011Date of Patent: May 6, 2014Assignee: Toshiba Lighting and Technology CorporationInventors: Tsuyoshi Oyaizu, Seiko Kawashima, Haruki Takei, Akiko Saito
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Publication number: 20140084777Abstract: According to one embodiment, there is provided a light emitting device includes a substrate; a first light emitting element mounted on one surface side of the substrate; a second light emitting element mounted on the one surface side of the substrate and having a light emitting layer positioned above a light emitting layer of the first light emitting element; and a fluorescent material layer covering the first light emitting element and containing a fluorescent material.Type: ApplicationFiled: March 14, 2013Publication date: March 27, 2014Applicant: Toshiba Lighting & Technology CorporationInventor: Tsuyoshi OYAIZU
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Patent number: 8654039Abstract: A display panel includes a face plate having a transparent substrate, a plurality of phosphor layers disposed on the transparent substrate for emitting different color lights, and a plurality of transmittance adjustment layers interposed between the transparent substrate and the plurality of phosphor layers. Each transmittance adjustment layer corresponds to each phosphor layer for adjusting the transmittances of the lights emitted from the plurality of phosphor layers, and the transmittance adjustment layers have a filtering function with an approximately constant transmittance in the visible light wavelength region. In addition, a rear plate has a plurality of display elements each corresponding to each phosphor layer, wherein the face plate and the rear plate are disposed so that the phosphor layers formed on the face plate are opposite to the display elements formed on the rear plate.Type: GrantFiled: February 13, 2012Date of Patent: February 18, 2014Assignee: Canon Kabushiki KaishaInventors: Tsuyoshi Oyaizu, Hisafumi Ebisawa, Yukio Okudo
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Publication number: 20140043803Abstract: A light-emitting module according to an embodiment includes a substrate. The light-emitting module according to the embodiment includes a light-emitting elements (for example, red LEDs and blue LEDs) of different types provided on the substrate, the light emitting elements of each such type configured to emit light having a different wavelength. The light-emitting module according to the embodiment includes a first transparent member provided on the substrate and configured to partition the light-emitting elements on the substrate according to their type and allow light emitted from the light-emitting elements to be transmitted at a predetermined transmissivity.Type: ApplicationFiled: November 29, 2012Publication date: February 13, 2014Applicant: Toshiba Lighting & Technology CorporationInventors: Seiko Kawashima, Takahito Kashiwagi, Yoshiko Takahashi, Kazuo Shimokawa, Masahiro Fujita, Tsuyoshi Oyaizu
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Patent number: 8643047Abstract: A light-emitting device includes a substrate, a reflecting layer formed on the substrate, a light-emitting element placed on the reflecting layer, and a sealing resin layer that covers the reflecting layer and the light-emitting element. The oxygen permeability of the sealing resin layer is equal to or lower than 1200 cm3/(m2·day·atm), and the ratio of the area of the reflecting layer covered by the sealing resin layer to the entire area on the resin substrate covered by the sealing resin layer is between 30% and 75% inclusive.Type: GrantFiled: March 7, 2012Date of Patent: February 4, 2014Assignee: Toshiba Lighting & Technology CorporationInventors: Kozo Uemura, Soichi Shibusawa, Yumiko Hayashida, Kiyoshi Nishimura, Seiko Kawashima, Tsuyoshi Oyaizu, Masahiro Ogata, Shuhei Matsuda, Hiroki Tamai
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Patent number: 8641232Abstract: According to one embodiment, a light emitting device includes: a substrate a back face side of which is disposed on a mounting member; a plurality of light emitting elements mounted on a surface side of the substrate; and a power supply terminal provided on the surface side of the substrate and electrically connected to the light emitting elements. The power supply terminal is connected to electrical connecting units by elastic pressing force directed from the surface side of the substrate to the mounting member side. A mechanical fixing unit has a pressing portion brought into contact with the surface side of the substrate. The mechanical fixing units fix the substrate to the mounting member with use of elastic pressing force of the pressing portions directed from the surface side of the substrate to the mounting member side.Type: GrantFiled: June 17, 2011Date of Patent: February 4, 2014Assignee: Toshiba Lighting & Technology CorporationInventors: Seiko Kawashima, Yuichiro Takahara, Kazuya Kondo, Yusuke Shibahara, Hiroki Tamai, Haruki Takei, Tsuyoshi Oyaizu
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Publication number: 20130341657Abstract: A light-emitting module includes a substrate in an embodiment. The light-emitting module includes a first light-emitting element mounted on the substrate through a first connecting structure in an embodiment. The light-emitting module includes a second light-emitting element having a light-emitting efficiency that is more sensitive to a change in temperature than that of the first light-emitting element, and mounted on the substrate through a second connecting structure having a higher thermal radiation than the first connecting structure.Type: ApplicationFiled: September 12, 2012Publication date: December 26, 2013Applicant: Toshiba Lighting & Technology CorporationInventor: Tsuyoshi OYAIZU
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Patent number: 8608340Abstract: According to one embodiment, a light-emitting module includes a module substrate, a first wiring pattern provided on the module substrate and including a common wire connecting portion, a second wiring pattern provided on the module substrate and including a first wire connecting portion, a second wire connecting portion, and a middle pattern portion, a first light-emitting element group arranged between the common wire connecting portion and the first wire connecting portion and including semiconductor light-emitting elements connected in series and being electrically connected to the common wire connecting portion and the first wire connecting portion, and a second light-emitting element group arranged between the common wire connecting portion and the second wire connecting portion and including semiconductor light-emitting elements connected in series and being electrically connected to the common wire connecting portion and the second wire connecting portion.Type: GrantFiled: June 27, 2011Date of Patent: December 17, 2013Assignee: Toshiba Lighting & Technology CorporationInventors: Tsuyoshi Oyaizu, Haruki Takei, Akiko Saito, Seiko Kawashima
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Publication number: 20130320870Abstract: A light-emitting module includes a first light-emitting element group which includes first light-emitting elements and in which the plural first light-emitting elements are connected in series. Besides, the light-emitting module includes a second light-emitting element group which includes second light-emitting elements whose rate of change of light-emitting efficiency and rate of change of voltage with respect to a temperature change are large as compared with the first light-emitting elements, in which the plural second light-emitting elements are connected in series, and which is connected in parallel to the first light-emitting element group.Type: ApplicationFiled: August 28, 2012Publication date: December 5, 2013Applicant: Toshiba Lighting & Technology CorporationInventor: Tsuyoshi OYAIZU
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Patent number: 8569786Abstract: According to one embodiment, a light emitting device includes a substrate, a light emitting element and connectors. The substrate has a surface and a back face, and power supply terminals are formed on the surface. The light emitting element is mounted on the surface of the substrate. The connector includes a contact portion coming into contact with the power supply terminal on the surface side of the substrate and a connector terminal having a wire connection portion projecting on the back face side of the substrate, and a power supply wire is connected to the wire connection portion of the connector terminal.Type: GrantFiled: May 11, 2011Date of Patent: October 29, 2013Assignee: Toshiba Lighting & Technology CorporationInventors: Haruki Takei, Seiko Kawashima, Masahiro Izumi, Akiko Saito, Yusuke Shibahara, Tsuyoshi Oyaizu
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Publication number: 20130249411Abstract: A light emitting module includes a toric sealing unit which seals blue LEDs arranged in a toric shape on a substrate from above, and a sealing unit which seals red LEDs arranged in the vicinity of a center of the toric shape of the blue LEDs. The sealing unit is formed to fill the inside of the toric shape of the toric sealing unit. The sealing unit has a refractive index of light higher than that of the toric sealing unit. The light which are emitted from the blue LEDs and the red LEDs, are refracted on the interface between the sealing unit and sealed gas, and proceed to the direction of the sealed gas, thereby being composed appropriately.Type: ApplicationFiled: March 7, 2013Publication date: September 26, 2013Applicant: TOSHIBA LIGHTING & TECHNOLOGY CORPORATIONInventors: Yoshiko Takahashi, Seiko Kawashima, Tsuyoshi Oyaizu, Takahito Kashiwagi
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Publication number: 20130135869Abstract: According to one embodiment, a luminaire includes an envelope including a light transmission section, a rectangular substrate provided in the envelope, and a pair of supporting sections. On one surface of the substrate, plural light-emitting elements are mounted side by side on a line shifted to one side in the width direction of the substrate from a center line extending along the longitudinal direction of the substrate. Electronic components are mounted in positions deviating to the other side in the width direction of the substrate from the line. The pair of supporting sections are provided on the inner surface of the envelope and support both the end sides of the substrate, which are along the longitudinal direction of the substrate.Type: ApplicationFiled: August 23, 2012Publication date: May 30, 2013Applicant: Toshiba Lighting & Technology CorporationInventor: Tsuyoshi OYAIZU
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Patent number: 8408724Abstract: A light source module includes a module substrate, a metal conductor, a plurality of semiconductor light emitting elements, a white diffuse reflection layer, and translucent sealing members. The metal conductor is provided in a predetermined pattern on a front surface of the module substrate. The semiconductor light emitting elements are electrically connected to the metal conductor and mounted on the front surface of the module substrate. The white diffuse reflection layer includes a plurality of holes in which the semiconductor light emitting elements are located, is thinner than the semiconductor light emitting elements, and is laminated to the front surface of the module substrate. The translucent sealing members bury the semiconductor light emitting elements, project below the diffuse reflection layer, and are mixed with a phosphor.Type: GrantFiled: December 18, 2009Date of Patent: April 2, 2013Assignee: Toshiba Lighting & Technology CorporationInventors: Kozo Ogawa, Yusuke Shibahara, Kiyoshi Nishimura, Seiko Kawashima, Tsuyoshi Oyaizu, Haruki Takei