Patents by Inventor Tomoaki Sawabe
Tomoaki Sawabe 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: 9099405Abstract: According to one embodiment, a display device, includes: a display unit and a control unit. The display unit has a plurality of segments. Each of the plurality of segments includes a plurality of organic light emitting layers to emit light of mutually different colors. The plurality of segments forms one of a plurality types of images by changing the colors of the emitted light from the plurality of segments. The control unit drives each of the plurality of segments of the display unit to emit light.Type: GrantFiled: October 3, 2013Date of Patent: August 4, 2015Assignee: Kabushiki Kaisha ToshibaInventors: Tomio Ono, Keiji Sugi, Tomoaki Sawabe, Daimotsu Kato, Hayato Kakizoe, Yasushi Shinjo, Shintaro Enomoto
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Publication number: 20150188094Abstract: According to one embodiment, an organic electroluminescent element includes a first electrode, a second electrode provided opposite to the first electrode, an organic light emitting layer provided between the first electrode and the second electrode, and a protrusion. The protrusion is provided at least one of between the first electrode and the organic light emitting layer and between the organic light emitting layer and the second electrode.Type: ApplicationFiled: March 11, 2015Publication date: July 2, 2015Applicant: Kabushiki Kaisha ToshibaInventors: Tomoaki SAWABE, Tomio ONO, Toshiya YONEHARA, Shintaro ENOMOTO
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Publication number: 20150188090Abstract: According to one embodiment, an organic electroluminescent element includes a first electrode, a reflective layer, an organic light emitting layer, a second electrode, and an optical buffer layer. The reflective layer is provided to face the first electrode. The organic light emitting layer is provided between the first electrode and the reflective layer. The second electrode is provided between the organic light emitting layer and the reflective layer. The optical buffer layer is provided between the second electrode and the reflective layer. The refractive index of the optical buffer layer is lower than a refractive index of the organic light emitting layer. The optical buffer layer includes a gas filled between the second electrode and the reflective layer.Type: ApplicationFiled: March 6, 2015Publication date: July 2, 2015Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Toshiya YONEHARA, Tomio ONO, Tomoaki SAWABE, Shintaro ENOMOTO
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Publication number: 20150179982Abstract: According to one embodiment, an organic electroluminescent element includes a first electrode, a reflective layer provided opposite to the first electrode, an organic light emitting layer provided between the first electrode and the reflective layer, a second electrode provided between the organic light emitting layer and the reflective layer, an optical buffer layer provided between the second electrode and the reflective layer, and a plurality of light extraction portions. The plurality of light extraction portions are provided between the second electrode and the organic light emitting layer. The plurality of light extraction portions are projected from the side provided with the second electrode of the optical buffer layer into the optical buffer layer. The light extraction portions have a refractive index different from a refractive index of the optical buffer layer.Type: ApplicationFiled: March 4, 2015Publication date: June 25, 2015Inventors: Toshiya YONEHARA, Tomio ONO, Tomoaki SAWABE, Shintaro ENOMOTO
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Publication number: 20150179983Abstract: According to one embodiment, a light emitting element includes a first electrode, a second electrode, a light emitting layer, and a conductive section. The second electrode is provided opposite to the first electrode. The light emitting layer provided between the first electrode and the second electrode. The second electrode includes a plurality of layers. The conductive section pierces the first layer in thickness direction. The conductive section includes a conductive material. The second electrode includes a plurality of layers. Each of the plurality of layers includes at least one selected from the group consisting of Al, Al alloy, Ag, Ag alloy, alkali metals, and alkaline-earth metals and being different from one another.Type: ApplicationFiled: March 4, 2015Publication date: June 25, 2015Inventors: TOSHIYA YONEHARA, TOMIO ONO, TOMOAKI SAWABE, KEIJI SUGI, DAIMOTSU KATO, SHINTARO ENOMOTO
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Patent number: 9018620Abstract: According to one embodiment, an organic electroluminescent light emitting device includes a transparent substrate, an intermediate layer, a first electrode, an organic light emitting layer, and a second electrode. The intermediate layer includes a plurality of fine particles and a flattened layer. The fine particles are adhered to a major surface of the transparent substrate. The flattened layer covers the fine particles and has a refractive index different from a refractive index of the fine particles. The flattened layer is transparent. The first electrode is provided on the intermediate layer. The first electrode is transparent. The organic light emitting layer is provided on the first electrode. The second electrode is provided on the organic light emitting layer.Type: GrantFiled: March 6, 2012Date of Patent: April 28, 2015Assignee: Kabushiki Kaisha ToshibaInventors: Tomoaki Sawabe, Tomio Ono, Keiji Sugi, Toshiya Yonehara, Shintaro Enomoto
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Patent number: 8963414Abstract: According to one embodiment, an organic electroluminescent device includes first and second electrodes, an interconnection layer, an organic light emitting layer and a light scattering layer. The first electrode has includes first, second and third portions. The interconnection layer is electrically connected to the first electrode. The third portion overlays the interconnection layer when projected to the plane. The first and second portions do not overlay the interconnection layer. The second electrode overlays the second portion and does not overlay the first and the third portions. The organic light emitting layer is provided between the second portion and the second electrode. The second portion is disposed between the fourth portion of the light scattering layer and the second electrode. The fifth portion of the light scattering layer overlays the interconnection layer. The light scattering layer does not overlay the first portion when projected to the plane.Type: GrantFiled: December 12, 2012Date of Patent: February 24, 2015Assignee: Kabushiki Kaisha ToshibaInventors: Tomoaki Sawabe, Tomio Ono, Keiji Sugi, Shintaro Enomoto
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Patent number: 8902383Abstract: According to one embodiment, an organic electroluminescent device includes a first electrode, a second electrode, an organic light emitting layer and an optical layer. The first electrode has a first major surface and a second major surface opposite to the first major surface and is light transmissive. The second electrode faces a portion of the first major surface. The organic light emitting layer is provided between the first electrode and the second electrode. The organic light emitting layer and the first electrode are disposed between the optical layer and the second electrode. The optical layer is able to transit between a first state where a traveling direction of light emitted from the organic light emitting layer is changed and a second state having a smaller degree of the change in the traveling direction of the light than the first state.Type: GrantFiled: December 20, 2012Date of Patent: December 2, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Keiji Sugi, Shintaro Enomoto, Tomio Ono, Tomoaki Sawabe, Yasushi Shinjo, Yukitami Mizuno, Akio Amano, Tomoko Sugizaki, Toshiya Yonehara, Daimotsu Kato
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Patent number: 8884278Abstract: According to one embodiment, an organic electroluminescence device includes a first electrode, a second electrode, a first organic layer and a second organic layer. The second electrode includes a metal. The first organic layer is provided between the first electrode and the second electrode. The first organic layer is configured to emit light. The second organic layer is provided between the first organic layer and the second electrode. A refractive index of the second organic layer in a thickness direction for the light is lower than a refractive index of the first organic layer for the light.Type: GrantFiled: December 28, 2012Date of Patent: November 11, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Toshiya Yonehara, Tomio Ono, Tomoaki Sawabe, Keiji Sugi, Daimotsu Kato, Shintaro Enomoto
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Patent number: 8853936Abstract: According to one embodiment, an organic electroluminescent device includes a first electrode, a plurality of second electrodes and an organic light-emitting layer. The first electrode includes a first major surface and is optical transparency. The second electrodes extend in a first direction parallel to the first major surface and are separated from each other in a second direction parallel to the first major surface and perpendicular to the first direction. An optical transmittance of the second electrodes is lower than an optical transmittance of the first electrode. A distance along the second direction between a line extending in the first direction and a side surface of each of the second electrodes continuously increases and decreases along the first direction. The side surface is unparallel to the first major surface. The organic light-emitting layer is provided between the first electrode and the second electrodes.Type: GrantFiled: December 19, 2012Date of Patent: October 7, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Tomoko Sugizaki, Daimotsu Kato, Keiji Sugi, Tomio Ono, Yasushi Shinjo, Yukitami Mizuno, Akio Amano, Tomoaki Sawabe, Toshiya Yonehara, Shintaro Enomoto
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Patent number: 8841656Abstract: According to one embodiment, an organic electroluminescent element includes: a first electrode having a first and a second major surfaces; a second electrode opposed to part of the first major surface; an organic luminescent layer provided between the first and the second electrodes; an optical layer having a third major surface opposed to the second major surface and a fourth major surface on opposite side from the third major surface. The fourth major surface includes a first region overlapping the second electrode, and a second region not overlapping the second electrode. The fourth major surface includes a first concave-convex provided in the first region and a second concave-convex provided in the second region. A planarization layer is provided on the second region and burying the second concave-convex.Type: GrantFiled: September 13, 2012Date of Patent: September 23, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Tomoko Sugizaki, Shintaro Enomoto, Akio Amano, Tomio Ono, Yasushi Shinjo, Yukitami Mizuno, Keiji Sugi, Tomoaki Sawabe, Toshiya Yonehara, Daimotsu Kato
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Patent number: 8810128Abstract: According to one embodiment, an organic electroluminescent device includes a transparent electrode, a metal electrode, an organic light emitting layer and an intermediate layer. The transparent electrode is transmissive with respect to visible light. The metal electrode is reflective with respect to the visible light. The organic light emitting layer is provided between the transparent electrode and the metal electrode and is configured to emit light including a wavelength component of the visible light. The intermediate layer contacts the metal electrode and the organic light emitting layer between the organic light emitting layer and the metal electrode and is transmissive with respect to the visible light. A thickness of the intermediate layer is 60 nanometers or more and less than 200 nanometers. A refractive index of the organic light emitting layer to the visible light is higher than a refractive index of the intermediate layer to the visible light.Type: GrantFiled: February 13, 2014Date of Patent: August 19, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Toshiya Yonehara, Keiji Sugi, Daimotsu Kato, Tomoaki Sawabe, Tomio Ono, Shintaro Enomoto
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Publication number: 20140159568Abstract: According to one embodiment, an organic electroluminescent device includes a transparent electrode, a metal electrode, an organic light emitting layer and an intermediate layer. The transparent electrode is transmissive with respect to visible light. The metal electrode is reflective with respect to the visible light. The organic light emitting layer is provided between the transparent electrode and the metal electrode and is configured to emit light including a wavelength component of the visible light. The intermediate layer contacts the metal electrode and the organic light emitting layer between the organic light emitting layer and the metal electrode and is transmissive with respect to the visible light. A thickness of the intermediate layer is 60 nanometers or more and less than 200 nanometers. A refractive index of the organic light emitting layer to the visible light is higher than a refractive index of the intermediate layer to the visible light.Type: ApplicationFiled: February 13, 2014Publication date: June 12, 2014Inventors: Toshiya Yonehara, Keiji Sugi, Daimotsu Kato, Tomoaki Sawabe, Tomio Ono, Shintaro Enomoto
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Publication number: 20140159029Abstract: According to one embodiment, an organic electroluminescent light emitting device includes a transparent substrate, an intermediate layer, a first electrode, an organic light emitting layer, and a second electrode. The intermediate layer includes a plurality of fine particles and a flattened layer. The fine particles are adhered to a major surface of the transparent substrate. The flattened layer covers the fine particles and has a refractive index different from a refractive index of the fine particles. The flattened layer is transparent. The first electrode is provided on the intermediate layer. The first electrode is transparent. The organic light emitting layer is provided on the first electrode. The second electrode is provided on the organic light emitting layer.Type: ApplicationFiled: February 12, 2014Publication date: June 12, 2014Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Tomoaki SAWABE, Tomio Ono, Keiji Sugi, Toshiya Yonehara, Shintaro Enomoto
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Publication number: 20140139104Abstract: In general, according to one embodiment, an illumination device includes a light emitting unit, a connection unit, a containing unit, and a second sealing unit. The light emitting unit includes a first substrate, a second substrate, an organic electroluminescent element, and a first sealing unit. The organic electroluminescent element is provided between the first substrate and the second substrate. The first sealing unit seals circumferential edge portions between the first substrate and the second substrate. The connection unit supplies power to the organic electroluminescent element. The containing unit has a space being airtight in an interior of the containing unit. The containing unit contains the light emitting unit inside the space. The second sealing unit is provided in the containing unit. The second sealing unit seals between a portion of the unit extending outside the containing unit and the containing unit.Type: ApplicationFiled: October 7, 2013Publication date: May 22, 2014Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Daimotsu KATO, Hayato Kakizoe, Tomoko Sugizaki, Tomoaki Sawabe, Keiji Sugi, Akio Amano, Yasushi Shinjo, Tomio Ono, Shintaro Enomoto
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LIQUID CONTAINER, CONTAINER ILLUMINATION DEVICE, CONTAINER MEMBER, AND CONTAINER ILLUMINATION SYSTEM
Publication number: 20140140047Abstract: According to one embodiment, a liquid container includes a tank unit and a light emitting unit. The tank unit is capable of storing a liquid in an interior of the tank unit. At least one portion of the tank unit is light-transmissive. The light emitting unit contacts the at least one portion. The light emitting unit includes a first electrode opposing an outer surface of the at least one portion, a second electrode provided between the first electrode and the at least one portion, the second electrode being light-transmissive, and an organic light emitting layer provided between the first electrode and the second electrode.Type: ApplicationFiled: November 12, 2013Publication date: May 22, 2014Applicant: Kabushiki Kaisha ToshibaInventors: Tomoaki SAWABE, Yasushi SHINJO, Shintaro Enomoto -
Publication number: 20140138648Abstract: According to one embodiment, a display device, includes: a display unit and a control unit. The display unit has a plurality of segments. Each of the plurality of segments includes a plurality of organic light emitting layers to emit light of mutually different colors. The plurality of segments forms one of a plurality types of images by changing the colors of the emitted light from the plurality of segments. The control unit drives each of the plurality of segments of the display unit to emit light.Type: ApplicationFiled: October 3, 2013Publication date: May 22, 2014Applicant: Kabushiki Kaisha ToshibaInventors: Tomio Ono, Keiji Sugi, Tomoaki Sawabe, Daimotsu Kato, Hayato Kakizoe, Yasushi Shinjo, Shintaro Enomoto
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Patent number: 8698390Abstract: According to one embodiment, an organic electroluminescent device includes a transparent electrode, a metal electrode, an organic light emitting layer and an intermediate layer. The transparent electrode is transmissive with respect to visible light. The metal electrode is reflective with respect to the visible light. The organic light emitting layer is provided between the transparent electrode and the metal electrode and is configured to emit light including a wavelength component of the visible light. The intermediate layer contacts the metal electrode and the organic light emitting layer between the organic light emitting layer and the metal electrode and is transmissive with respect to the visible light. A thickness of the intermediate layer is 60 nanometers or more and less than 200 nanometers. A refractive index of the organic light emitting layer to the visible light is higher than a refractive index of the intermediate layer to the visible light.Type: GrantFiled: September 2, 2011Date of Patent: April 15, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Toshiya Yonehara, Keiji Sugi, Daimotsu Kato, Tomoaki Sawabe, Tomio Ono, Shintaro Enomoto
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Patent number: 8679646Abstract: According to one embodiment, there is provided an organic light-emitting diode including an anode and a cathode arranged apart from each other, and an emissive layer interposed between the anode and the cathode and including a host material and an emitting dopant. The emitting dopant includes a copper complex represented by the formula (1): where Cu+ represents a copper ion, the ligand A represents a pyridine derivative having nitrogen as a coordinate element and may have a substituent, PR1R2R3 is a phosphine compound coordinating with Cu+, where R1, R2 and R3 may be the same or different, and represent a linear, branched or cyclic alkyl group having 6 or less carbon atoms or an aromatic cyclic group which may have a substituent, and X? represents a counter ion (counterion) where X represents F, Cl, Br, I, BF4, PF6, CH3CO2, CF3CO2, CF3SO3 or ClO4.Type: GrantFiled: September 3, 2010Date of Patent: March 25, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Atsushi Wada, Yukitami Mizuno, Tomoaki Sawabe, Isao Takasu, Tomoko Sugizaki, Shintaro Enomoto, Isao Amemiya
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Publication number: 20140077169Abstract: According to one embodiment, an organic electroluminescence device includes a first electrode, a second electrode, a first organic layer and a second organic layer. The second electrode includes a metal. The first organic layer is provided between the first electrode and the second electrode. The first organic layer is configured to emit light. The second organic layer is provided between the first organic layer and the second electrode. A refractive index of the second organic layer in a thickness direction for the light is lower than a refractive index of the first organic layer for the light.Type: ApplicationFiled: December 28, 2012Publication date: March 20, 2014Inventors: Toshiya Yonehara, Tomio Ono, Tomoaki Sawabe, Keiji Sugi, Daimotsu Kato, Shintaro Enomoto