Patents by Inventor Satoshi Okutani
Satoshi Okutani 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: 9431624Abstract: An organic electroluminescent element includes electrodes and organic light-emitting layers that are between the electrodes. The organic light-emitting layers contain at least three colors of luminescent materials. A first luminescent material has a maximum light emission wavelength within a range of 430 nm to 480 nm. A second luminescent material has a maximum light emission wavelength within a range of 510 nm to 610 nm. A third luminescent material has a maximum light emission wavelength within a range of 580 nm to 630 nm. An average value of average color rendering indexes in a wide angle region of 30° to 60° with respect to a front direction of a light emission surface is higher than an average color rendering index in the front direction.Type: GrantFiled: July 8, 2013Date of Patent: August 30, 2016Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Hiroya Tsuji, Satoshi Okutani, Satoshi Ohara
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Publication number: 20150207092Abstract: An organic electroluminescent element includes electrodes and organic light-emitting layers that are between the electrodes. The organic light-emitting layers contain at least three colors of luminescent materials. A first luminescent material has a maximum light emission wavelength within a range of 430 nm to 480 nm. A second luminescent material has a maximum light emission wavelength within a range of 510 nm to 610 nm. A third luminescent material has a maximum light emission wavelength within a range of 580 nm to 630 nm. An average value of average color rendering indexes in a wide angle region of 30° to 60° with respect to a front direction of a light emission surface is higher than an average color rendering index in the front direction.Type: ApplicationFiled: July 8, 2013Publication date: July 23, 2015Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Hiroya Tsuji, Satoshi Okutani, Satoshi Ohara
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Patent number: 8859243Abstract: The present invention provides a method for producing an L-amino acid by fermentation by culturing a microorganism having an L-amino acid-producing ability in a liquid medium to precipitate the L-amino acid, wherein a polymer such as a water-soluble cellulose derivative, a water-soluble polyvinyl compound, a polar organic solvent-soluble polyvinyl compound, a water-soluble starch derivative, an alginic acid salt, and a polyacrylic acid salt is added to the medium.Type: GrantFiled: April 7, 2009Date of Patent: October 14, 2014Assignee: Ajinomoto Co., Inc.Inventors: Satoshi Okutani, Shinya Fujiki, Shintaro Iwatani
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Patent number: 8513656Abstract: According to one embodiment, an organic EL device includes a first organic EL element, a second organic EL element and a third organic EL element. The first organic EL element has a first electrode, a second electrode, and a first emitting layer. The second organic EL element has a third electrode, a fourth electrode, and a second emitting layer. At least a part of the first emitting layer extends on the second emitting layer. A third organic EL element has a fifth electrode, a sixth electrode, and a third emitting layer. At least a part of the first and the second emitting layers extends on the third emitting layer. A thickness of the first emitting layer between the first and the second electrodes is thicker than a thickness of the first emitting layer extending on the second and the third emitting layers.Type: GrantFiled: January 31, 2011Date of Patent: August 20, 2013Assignee: Japan Display Central Inc.Inventors: Satoshi Okutani, Norihisa Maeda, Masashi Takahashi, Takeshi Ikeda, Masuyuki Oota
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Patent number: 8283854Abstract: An organic EL display device includes a first light emission layer which includes a first dopant material having a first absorbance peak in absorbance spectrum characteristics and a first host material having a first absorbance bottom on a shorter wavelength side than the first absorbance peak, the first light emission layer extending over the first to third organic EL elements and being disposed above pixel electrodes of the first to third organic EL elements, and a second light emission layer which includes a second dopant material having a second absorbance peak in absorbance spectrum characteristics and a second host material having a second absorbance bottom on a shorter wavelength side than the first absorbance peak and than the second absorbance peak, the second light emission layer extending over the first to third organic EL elements and being disposed above the first light emission layer.Type: GrantFiled: December 23, 2010Date of Patent: October 9, 2012Assignee: Japan Display Central Inc.Inventors: Shuhei Yokoyama, Masuyuki Oota, Satoshi Okutani, Takanobu Takenaka
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Patent number: 8178322Abstract: A method is described for producing an L-amino acid or a nucleic acid by culturing a microorganism having an ability to produce the L-amino acid or nucleic acid in a liquid medium in a fermentation tank containing a stirring impeller, and optionally adding seed crystals to the medium as required to produce and accumulate crystals of the L-amino acid or nucleic acid in the medium, and collecting crystals of the L-amino acid or nucleic acid from the culture. The power density of the stirring impeller is controlled to be 2.4 kW/m3 or lower after either precipitation of the crystals or addition of the seed crystals.Type: GrantFiled: August 14, 2009Date of Patent: May 15, 2012Assignee: Ajinomoto Co., Inc.Inventors: Masayuki Araki, Yusuke Takahashi, Akihiro Watanabe, Fumito Ohnishi, Takahiro Asano, Kazuya Kondo, Wataru Hibino, Shintaro Iwatani, Satoshi Okutani
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Publication number: 20120081495Abstract: According to one embodiment, an organic EL device includes a substrate, a first translucent insulating film, a second translucent insulating film, a first electrode, a second electrode, and an emitting layer. The substrate has a first index of refraction. The first translucent insulating film is on the substrate, and the first insulating film has a second index of refraction higher than the first index of refraction. The second translucent insulating film is on the first insulating film, and the second insulating film has a third index of refraction lower than the second index of refraction. The first electrode is on the second insulating film, and the first electrode has a fourth index of refraction higher than the third index of refraction. The second electrode is facing the first electrode. The emitting layer is between the first electrode and the second electrode.Type: ApplicationFiled: May 31, 2011Publication date: April 5, 2012Applicant: Toshiba Mobile Display Co., Ltd.Inventors: Hirofumi Kubota, Satoshi Okutani, Masuyuki Oota
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Publication number: 20110233576Abstract: According to one embodiment, an organic EL device includes a first organic EL element, a second organic EL element and a third organic EL element. The first organic EL element has a first electrode, a second electrode, and a first emitting layer. The second organic EL element has a third electrode, a fourth electrode, and a second emitting layer. At least a part of the first emitting layer extends on the second emitting layer. A third organic EL element has a fifth electrode, a sixth electrode, and a third emitting layer. At least a part of the first and the second emitting layers extends on the third emitting layer. A thickness of the first emitting layer between the first and the second electrodes is thicker than a thickness of the first emitting layer extending on the second and the third emitting layers.Type: ApplicationFiled: January 31, 2011Publication date: September 29, 2011Applicant: Toshiba Mobile Display Co., Ltd.Inventors: Satoshi OKUTANI, Norihisa Maeda, Masashi Takahashi, Takeshi Ikeda, Masuyuki Oota
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Patent number: 7960908Abstract: An organic EL display includes an organic EL element including a pair of electrodes and an emitting layer interposed therebetween and having an optical resonator structure, and a coloring layer facing the organic EL element. A wavelength ?res of a light component with the maximum intensity that the organic EL element emits in a normal direction is shorter than a wavelength at which the coloring layer exhibits the maximum transmittance.Type: GrantFiled: July 10, 2006Date of Patent: June 14, 2011Assignee: Toshiba Matsushita Display Technology Co., Ltd.Inventors: Satoshi Okutani, Hirofumi Kubota, Tsuyoshi Uemura
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Publication number: 20110108812Abstract: According to one embodiment, an organic EL device includes an insulating substrate, switching elements arranged two-dimensionally above the insulating substrate, an insulating layer positioned above the switching elements and provided with contact holes communicating with the switching elements, respectively, pixel electrodes arranged correspondingly with the switching elements, cover members arranged correspondingly with the contact holes, an organic layer extending over the pixel electrodes, the cover members and a portion of the insulating layer positioned below a region between the pixel electrodes, and a counter electrode positioned above the organic layer. Each pixel electrode includes an electrode body positioned above the insulating layer and a contact section extending in the contact hole and electrically connects the electrode body to the switching element. Each cover member covers the contact section and is made of an insulating material.Type: ApplicationFiled: October 28, 2010Publication date: May 12, 2011Inventors: Shiro Sumita, Shuhei Yokoyama, Masuyuki Oota, Satoshi Okutani
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Publication number: 20110089816Abstract: An organic EL display device includes a first light emission layer which includes a first dopant material having a first absorbance peak in absorbance spectrum characteristics and a first host material having a first absorbance bottom on a shorter wavelength side than the first absorbance peak, the first light emission layer extending over the first to third organic EL elements and being disposed above pixel electrodes of the first to third organic EL elements, and a second light emission layer which includes a second dopant material having a second absorbance peak in absorbance spectrum characteristics and a second host material having a second absorbance bottom on a shorter wavelength side than the first absorbance peak and than the second absorbance peak, the second light emission layer extending over the first to third organic EL elements and being disposed above the first light emission layer.Type: ApplicationFiled: December 23, 2010Publication date: April 21, 2011Inventors: Shuhei YOKOYAMA, Masuyuki Oota, Satoshi Okutani, Takanobu Takenaka
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Patent number: 7915813Abstract: An organic EL display device includes a first light emission layer which includes a first dopant material having a first absorbance peak in absorbance spectrum characteristics and a first host material having a first absorbance bottom on a shorter wavelength side than the first absorbance peak, the first light emission layer extending over the first to third organic EL elements and being disposed above pixel electrodes of the first to third organic EL elements, and a second light emission layer which includes a second dopant material having a second absorbance peak in absorbance spectrum characteristics and a second host material having a second absorbance bottom on a shorter wavelength side than the first absorbance peak and than the second absorbance peak, the second light emission layer extending over the first to third organic EL elements and being disposed above the first light emission layer.Type: GrantFiled: March 23, 2009Date of Patent: March 29, 2011Assignee: Toshiba Matsushita Display Technology Co., Ltd.Inventors: Shuhei Yokoyama, Masuyuki Oota, Satoshi Okutani, Takanobu Takenaka
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Publication number: 20100062493Abstract: A method is described for producing an L-amino acid or a nucleic acid by culturing a microorganism having an ability to produce the L-amino acid or nucleic acid in a liquid medium in a fermentation tank containing a stirring impeller, and optionally adding seed crystals to the medium as required to produce and accumulate crystals of the L-amino acid or nucleic acid in the medium, and collecting crystals of the L-amino acid or nucleic acid from the culture. The power density of the stirring impeller is controlled to be 2.4 kW/m3 or lower after either precipitation of the crystals or addition of the seed crystals.Type: ApplicationFiled: August 14, 2009Publication date: March 11, 2010Inventors: Masayuki Araki, Yusuke Takahashi, Akihiro Watanabe, Fumito Ohnishi, Takahiro Asano, Kazuya Kondo, Wataru Hibino, Shintaro Iwatani, Satoshi Okutani
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Publication number: 20100044690Abstract: An organic EL display device includes a first organic EL element which includes a first organic layer including a first light emission layer which emits the color of light in the first wavelength range and a hole blocking layer between a pixel electrode and a counter-electrode, a second organic EL element which includes a second organic layer including a second light emission layer which emits the color of light in the first wavelength range between a pixel electrode and the counter-electrode, the second organic EL element being thinner than the first organic EL element, and a third organic EL element which includes a third organic layer including the third light emission layer which emits the color of light in the first wavelength range between a pixel electrode and the counter-electrode, the third organic EL element being thicker than the first organic EL element.Type: ApplicationFiled: August 5, 2009Publication date: February 25, 2010Inventors: Satoshi OKUTANI, Kouichi Yamashita, Norihisa Maeda, Hirofumi Kubota, Masuyuki Oota, Takeshi Ikeda
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Publication number: 20090267101Abstract: A display includes pixels each of which contains a light emitting element and which are arranged in a matrix form, a light transmitting insulating layer which includes a back surface facing the light emitting element and a front surface as a light output surface, a beam-condensing element which is arranged on a back side of the insulating layer and increases a directivity of light emitted by the light emitting element to make the light incident on the insulating layer, and a diffusing element which is arranged on a front side of the insulating layer, diffuses light from the insulating layer, and output the diffused light to an external environment.Type: ApplicationFiled: July 9, 2009Publication date: October 29, 2009Inventors: Tsuyoshi Uemura, Satoshi Okutani, Hirofumi Kubota, Naotada Okada, Junichi Tonotani
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Publication number: 20090243466Abstract: An organic EL display device includes a first light emission layer which includes a first dopant material having a first absorbance peak in absorbance spectrum characteristics and a first host material having a first absorbance bottom on a shorter wavelength side than the first absorbance peak, the first light emission layer extending over the first to third organic EL elements and being disposed above pixel electrodes of the first to third organic EL elements, and a second light emission layer which includes a second dopant material having a second absorbance peak in absorbance spectrum characteristics and a second host material having a second absorbance bottom on a shorter wavelength side than the first absorbance peak and than the second absorbance peak, the second light emission layer extending over the first to third organic EL elements and being disposed above the first light emission layer.Type: ApplicationFiled: March 23, 2009Publication date: October 1, 2009Inventors: Shuhei Yokoyama, Masuyuki Oota, Satoshi Okutani, Takanobu Takenaka
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Publication number: 20090239268Abstract: The present invention provides a method for producing an L-amino acid by fermentation by culturing a microorganism having an L-amino acid-producing ability in a liquid medium to precipitate the L-amino acid, wherein a polymer such as a water-soluble cellulose derivative, a water-soluble polyvinyl compound, a polar organic solvent-soluble polyvinyl compound, a water-soluble starch derivative, an alginic acid salt, and a polyacrylic acid salt is added to the medium.Type: ApplicationFiled: April 7, 2009Publication date: September 24, 2009Inventors: Satoshi Okutani, Shinya Fujiki, Shintaro Iwatani
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Patent number: 7573193Abstract: An optical device includes a first waveguide layer in which multiple-beam interference occurs, a second waveguide layer which includes a back surface facing the first waveguide layer and a front surface as a light output surface, and a diffraction grating which is arranged on a back side of the second waveguide layer and faces the first waveguide layer, wherein a grating constant of the diffraction grating is defined such that a first-order diffracted light emerges from the second waveguide layer, the first-order diffracted light being generated when a light component having a highest intensity of light which propagates in an in-plane direction while causing multiple reflection in the first waveguide layer enters the diffraction grating.Type: GrantFiled: November 10, 2005Date of Patent: August 11, 2009Assignees: Toshiba Matsushita Display Technology Co., Ltd., Kabushiki Kaisha ToshibaInventors: Satoshi Okutani, Tsuyoshi Uemura, Hirofumi Kubota, Naotada Okada, Junichi Tonotani, Keiji Suzuki, Hideki Ookawa
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Patent number: 7535166Abstract: An organic EL display includes an organic EL element which includes first and second electrodes and an active layer interposed therebetween and including an emitting layer, and an outcoupling layer facing the first electrode. The organic EL element forms a waveguide layer which includes the first electrode and the active layer and in which light components from the emitting layer propagate in an in-plane direction while causing multiple-beam interference. A distance between the outcoupling layer and the waveguide layer is shorter than a wavelength of light from the organic EL element. A guide length x, a number of reflection m, an absorption coefficient ?, and an outcoupling efficiency ? satisfy a relationship represented by an inequality: ? ? ? M = 1 m ? ( 1 - ? ) M - 1 exp ? { ? ? ( 2 ? M - 1 ) ? x } > 0.1 .Type: GrantFiled: February 1, 2007Date of Patent: May 19, 2009Assignee: Toshiba Matsushita Display Technology Co., Ltd.Inventor: Satoshi Okutani
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Patent number: 7402939Abstract: An organic EL display includes an insulating layer with light-transmission property, an organic EL element located on a back side of the insulating layer, a diffraction grating located on the back side of the insulating layer, and an optical film disposed on a front side of the insulating layer and including optically isotropic first portions and optically anisotropic second portions, the first and second portions forming boundaries inclined with respect to a main surface of the optical film.Type: GrantFiled: September 26, 2005Date of Patent: July 22, 2008Assignee: Toshiba Matsushita Display Technology Co., Ltd.Inventors: Hirofumi Kubota, Satoshi Okutani, Tsuyoshi Uemura