Patents by Inventor Takashi Asano
Takashi Asano 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: 20190067910Abstract: A thermal radiation light source includes a laminated body including m quantum layers laminated where m is an integer of 2 or more, including an n-layer and a p-layer sandwiching the quantum layers from both sides in the laminating direction, the n-layer made of an n-type semiconductor and the p-layer made of a p-type semiconductor; a voltage applying unit for the m quantum layers is directly or indirectly connected to the n-layer and p-layer sandwiching each layer applying a voltage for moving to the n-layers or p-layers a charge; a voltage switching unit switches ON/OFF of application of the voltage to the m quantum layers; and a photonic crystal portion disposed in the laminated body or adjacent to the laminated body, so that lights of m wavelengths resonate, the lights of the m wavelengths generated in the m quantum layers corresponding to transition energy between subbands in the quantum layer.Type: ApplicationFiled: February 13, 2017Publication date: February 28, 2019Applicant: KYOTO UNIVERSITYInventors: Susumu NODA, Takuya INOUE, Anqi JI, Takashi ASANO
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Publication number: 20190064393Abstract: A thermal emission source is provided that has a structure capable of suppressing deterioration of an optical assembly over time. The thermal emission source includes an optical assembly (1) having an optical structure in which a member made of a semiconductor has a refractive index distribution so as to resonate with light of a wavelength shorter than a wavelength that corresponds to an absorption edge corresponding to a band gap of the semiconductor. The optical assembly (1) includes a coating structure (30) with a coating material that differs from the semiconductor of refractive portions (10) and through which light of a wavelength included in a wavelength range from visible light to far infrared rays can be transmitted.Type: ApplicationFiled: February 28, 2017Publication date: February 28, 2019Inventors: Masahiro Suemitsu, Tadashi Saito, Susumu Noda, Takashi Asano, Menaka De Zoysa
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Publication number: 20180323441Abstract: A membrane electrode gas diffusion layer assembly for a fuel cell includes a membrane electrode assembly including an electrolyte membrane, an anode catalyst layer, and a cathode catalyst layer, an anode diffusion layer joined to the anode catalyst layer of the membrane electrode assembly, and a cathode diffusion layer joined to the cathode catalyst layer of the membrane electrode assembly, in which at least one of the anode diffusion layer and the cathode diffusion layer includes a microporous layer that makes contact with the membrane electrode assembly, the microporous layer contains a cerium compound, and at least one of the electrolyte membrane, the anode catalyst layer, and the cathode catalyst layer comprises cerium ions.Type: ApplicationFiled: April 25, 2018Publication date: November 8, 2018Inventors: Junji Nakanishi, Tadashi Kawamoto, Yuta Ikehata, Kyoko Tsusaka, Takashi Asano, Naoki Hasegawa
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Patent number: 9972970Abstract: A thermal emission source capable of switching the intensity of light at a high response speed similarly to a photoelectric conversion element. A thermal emission source includes: a two-dimensional photonic crystal including a slab in which an n-layer made of an n-type semiconductor, a quantum well structure layer having a quantum well structure, and a p-layer made of a p-type semiconductor are stacked in the mentioned order in the thickness direction, wherein modified refractive index areas (air holes) whose refractive index differs from the refractive indices of the n-layer, the p-layer and the quantum well structure layer are cyclically arranged in the slab so as to resonate with a specific wavelength of light corresponding to a transition energy between the subbands in a quantum well in the quantum well structure layer; and a p-type electrode and an n-type electrode for applying, to the slab, a voltage which is negative on the side of the p-layer and positive on the side of the n-layer.Type: GrantFiled: February 24, 2015Date of Patent: May 15, 2018Assignee: JAPAN SCIENCE AND TECHNOLOGY AGENCYInventors: Susumu Noda, Takuya Inoue, Takashi Asano, Menaka De Zoysa
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Patent number: 9799418Abstract: Provided is a method of treating radioactive liquid waste which reduces the amount of radioactive waste to be generated and is capable of removing a radioactive nuclide from radioactive liquid waste to the extent that the concentration thereof is less than or equal to the measurement lower limit using a simple apparatus configuration. A filtration device is connected to a colloid removal device by a connection pipe. An adsorption tower positioned at the highest stream of an adsorption device is connected to the colloid removal device by a connection pipe. The colloid removal device includes an electrostatic filter. Respective adsorption towers in the adsorption device are sequentially connected by a pipe. A discharge pipe is connected to the adsorption tower positioned at the lowest stream of the adsorption device. Radioactive liquid waste, containing particles having a particle diameter of 1 ?m or greater, negatively charged colloids, and a radioactive nuclide, is supplied to the filtration device.Type: GrantFiled: July 29, 2014Date of Patent: October 24, 2017Assignee: Hitachi-GE Nuclear Energy, Ltd.Inventors: Yuuko Kani, Takashi Asano, Yusuke Kitamoto, Noriaki Takeshi, Kenji Noshita, Mamoru Kamoshida
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Publication number: 20170299042Abstract: A case that houses a chain includes a first cover member fixed to a cylinder block and a cylinder head, and a second cover member arranged on the opposite side of the cylinder block and the cylinder head from the first cover member. In an intermediate part, which is a part of a confronting wall of the first cover member between the first flange and the second flange, a cover-side rib is provided, having a height so that a distal end of the cover-side rib is not in contact with the cylinder block.Type: ApplicationFiled: April 17, 2017Publication date: October 19, 2017Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takashi ASANO, Tatsuhiro TERADA, Kazuhiro MORI, Hiroaki MURAMATSU
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Patent number: 9682360Abstract: Granular crystalline silicotitanate (CST) is supplied from an adsorbent raw material supply apparatus into a caustic treatment apparatus. A sodium hydroxide solution of 1 Mol/L in a caustic agent supply apparatus is supplied into the caustic treatment apparatus with the granular CST supplied. After a predetermined quantity of the sodium hydroxide solution is supplied to the caustic treatment apparatus, the supply of the sodium hydroxide solution to the caustic treatment apparatus is stopped. The granular CST is left to stand for 0.5 hour in the state that it is immersed in the sodium hydroxide solution in the caustic treatment apparatus and is subjected to the caustic treatment. After that, the granular CST subjected to the caustic treatment is cleaned by cleaning water in a cleaning water supply apparatus. The respective adsorptive performances of cesium and strontium of the granular CST subjected to the caustic treatment are improved more.Type: GrantFiled: December 19, 2013Date of Patent: June 20, 2017Assignee: Hitachi-GE Nuclear Energy, Ltd.Inventors: Yuko Kani, Takashi Asano
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Publication number: 20170077675Abstract: A thermal emission source capable of switching the intensity of light at a high response speed similarly to a photoelectric conversion element. A thermal emission source includes: a two-dimensional photonic crystal including a slab in which an n-layer made of an n-type semiconductor, a quantum well structure layer having a quantum well structure, and a p-layer made of a p-type semiconductor are stacked in the mentioned order in the thickness direction, wherein modified refractive index areas (air holes) whose refractive index differs from the refractive indices of the n-layer, the p-layer and the quantum well structure layer are cyclically arranged in the slab so as to resonate with a specific wavelength of light corresponding to a transition energy between the subbands in a quantum well in the quantum well structure layer; and a p-type electrode and an n-type electrode for applying, to the slab, a voltage which is negative on the side of the p-layer and positive on the side of the n-layer.Type: ApplicationFiled: February 24, 2015Publication date: March 16, 2017Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCYInventors: Susumu NODA, Takuya INOUE, Takashi ASANO, Menaka DE ZOYSA
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Publication number: 20160211040Abstract: Provided is a method of treating radioactive liquid waste which reduces the amount of radioactive waste to be generated and is capable of removing a radioactive nuclide from radioactive liquid waste to the extent that the concentration thereof is less than or equal to the measurement lower limit using a simple apparatus configuration. A filtration device is connected to a colloid removal device by a connection pipe. An adsorption tower positioned at the highest stream of an adsorption device is connected to the colloid removal device by a connection pipe. The colloid removal device includes an electrostatic filter. Respective adsorption towers in the adsorption device are sequentially connected by a pipe. A discharge pipe is connected to the adsorption tower positioned at the lowest stream of the adsorption device. Radioactive liquid waste, containing particles having a particle diameter of 1 ?m or greater, negatively charged colloids, and a radioactive nuclide, is supplied to the filtration device.Type: ApplicationFiled: July 29, 2014Publication date: July 21, 2016Inventors: Yuko KANI, Takashi ASANO, Yusuke KITAMOTO, Noriaki TAKESHI, Kenji NOSHITA, Mamoru KAMOSHIDA
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Patent number: 9336914Abstract: A radioactive waste (zeolite to which Cs-137 was adsorbed) in a waste tank and a glass raw material (soda lime glass) in a glass raw material tank are supplied into a solidifying vessel. Graphite in a graphite tank is also supplied into the solidifying vessel. The solidifying vessel is filled with a mixture of the radioactive waste, glass raw material, and graphite and is then disposed in an adiabatic vessel. The radioactive waste and glass raw material in the adiabatic vessel are heated by thermal energy generated due to radiation emitted from Cs-137. The heat is transferred to the peripheral portion of the solidifying vessel through the graphite, raising the temperature of the peripheral portion. The glass raw material is melted and enters clearances among the radioactive waste, producing a vitrified radioactive waste. This radioactive waste solidification method can shorten a time taken to produce a vitrified radioactive waste.Type: GrantFiled: July 15, 2015Date of Patent: May 10, 2016Assignee: Hitachi-GE Nuclear Energy, Ltd.Inventors: Tsuyoshi Itou, Kenji Noshita, Takashi Asano
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Publication number: 20160049897Abstract: A thermal emission source that allows a wider range of material choices than those of conventional techniques, so that light having a desired peak wavelength can easily be obtained. A thermal emission source includes a thermo-optical converter composed of an optical structure in which a refractive index distribution is formed in a member made of an intrinsic semiconductor so as to resonate with light of a shorter wavelength than a wavelength corresponding to a bandgap of the intrinsic semiconductor. When heat is externally supplied to the thermo-optical converter, light having a spectrum in a band of shorter wavelengths than a cutoff wavelength is produced by interband absorption in the intrinsic semiconductor, and light of a resonant wavelength ?r in the wavelength band, the light causing resonance in the optical structure, is selectively intensified and emitted as thermal emission.Type: ApplicationFiled: February 28, 2014Publication date: February 18, 2016Inventors: Susumu NODA, Tatsuya SHIBAHARA, Menaka DE ZOYSA, Takashi ASANO, Keisuke KITANO, Katsuyoshi SUZUKI, Takuya INOUE, Kenji ISHIZAKI
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Publication number: 20160027544Abstract: A radioactive waste (zeolite to which Cs-137 was adsorbed) in a waste tank and a glass raw material (soda lime glass) in a glass raw material tank are supplied into a solidifying vessel. Graphite in a graphite tank is also supplied into the solidifying vessel. The solidifying vessel is filled with a mixture of the radioactive waste, glass raw material, and graphite and is then disposed in an adiabatic vessel. The radioactive waste and glass raw material in the adiabatic vessel are heated by thermal energy generated due to radiation emitted from Cs-137. The heat is transferred to the peripheral portion of the solidifying vessel through the graphite, raising the temperature of the peripheral portion. The glass raw material is melted and enters clearances among the radioactive waste, producing a vitrified radioactive waste. This radioactive waste solidification method can shorten a time taken to produce a vitrified radioactive waste.Type: ApplicationFiled: July 15, 2015Publication date: January 28, 2016Inventors: Tsuyoshi ITOU, Kenji NOSHITA, Takashi ASANO
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Patent number: 9097847Abstract: A Raman scattered light enhancement device including a waveguide provided in a photonic crystal (20) made of a semiconductor substrate in which holes (20a) are formed. The waveguide has resonant modes with respect to incident light at a plurality of frequencies. A difference in frequency between one resonant mode and another resonant mode is equal to a Raman shift frequency of the semiconductor substrate. A waveguide forming direction with respect to a crystal plane orientation of the semiconductor substrate is set so as to maximize a Raman transition probability which is represented by electromagnetic field distribution of the two resonant modes and a Raman tensor of the semiconductor substrate.Type: GrantFiled: March 8, 2013Date of Patent: August 4, 2015Assignee: Japan Science and Technology AgencyInventors: Yasushi Takahashi, Yoshitaka Inui, Takashi Asano, Susumu Noda, Masahiro Chihara
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Publication number: 20140355630Abstract: A Raman scattered light enhancement device including a waveguide provided in a photonic crystal (20) made of a semiconductor substrate in which holes (20a) are formed. The waveguide has resonant modes with respect to incident light at a plurality of frequencies. A difference in frequency between one resonant mode and another resonant mode is equal to a Raman shift frequency of the semiconductor substrate. A waveguide forming direction with respect to a crystal plane orientation of the semiconductor substrate is set so as to maximize a Raman transition probability which is represented by electromagnetic field distribution of the two resonant modes and a Raman tensor of the semiconductor substrate.Type: ApplicationFiled: March 8, 2013Publication date: December 4, 2014Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCYInventors: Yasushi Takahashi, Yoshitaka Inui, Takashi Asano, Susumu Noda, Masahiro Chihara
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Publication number: 20140178282Abstract: Granular crystalline silicotitanate (CST) is supplied from an adsorbent raw material supply apparatus into a caustic treatment apparatus. A sodium hydroxide solution of 1 Mol/L in a caustic agent supply apparatus is supplied into the caustic treatment apparatus with the granular CST supplied. After a predetermined quantity of the sodium hydroxide solution is supplied to the caustic treatment apparatus, the supply of the sodium hydroxide solution to the caustic treatment apparatus is stopped. The granular CST is left to stand for 0.5 hour in the state that it is immersed in the sodium hydroxide solution in the caustic treatment apparatus and is subjected to the caustic treatment. After that, the granular CST subjected to the caustic treatment is cleaned by cleaning water in a cleaning water supply apparatus. The respective adsorptive performances of cesium and strontium of the granular CST subjected to the caustic treatment are improved more.Type: ApplicationFiled: December 19, 2013Publication date: June 26, 2014Applicant: Hitachi-GE Nuclear Energy, Ltd.Inventors: Yuko KANI, Takashi ASANO
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Patent number: 8704253Abstract: In conventional organic EL light-emitting devices, the ITO used for a transparent electrode has a refractive index of about 2.0 larger than the refractive index of 1.5 of a transparent glass substrate. As a result, the mode of most of light traveling from the transparent electrode toward the glass substrate is the transparent electrode guided mode, and no light is emitted from the transparent electrode toward the glass substrate. According to the invention, the light extraction efficiency of conventional light-emitting devices such as organic EL light-emitting devices is improved by using mode conversion means so as to solve the problem that conventional light-emitting devices such as organic EL light-emitting devices have low light extraction efficiencies. A light-emitting device of the invention comprises a light-emitting layer on a substrate and mode conversion means for converting the mode from the guided mode into an emission mode.Type: GrantFiled: March 19, 2004Date of Patent: April 22, 2014Assignee: Rohm Co., Ltd.Inventors: Susumu Noda, Takashi Asano, Masayuki Fujita, Hiroshi Ohata
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Publication number: 20140104883Abstract: An electronic apparatus according to an embodiment includes a case, a display panel, a back light, a middle support, a heat diffuser, and a shield. The back light includes a light guiding plate and a plurality of light emitting elements. The middle support behined the back light includes a connecting window on a side close to the light emitting elements. The heat diffuser is thermally connected to the light emitting elements, crosses over the connecting window, and extends toward a center area between the light guiding plate and the middle support. The shield is disposed at a back of the middle support, and is thermally connected to the heat diffuser through the connecting window.Type: ApplicationFiled: August 27, 2013Publication date: April 17, 2014Applicant: KABUSHIKI KAISHA TOSHIBAInventor: Takashi Asano
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Patent number: 8587958Abstract: According to one embodiment, a display is provided with a rib structure on the inner surface of rear-side casing, and a fixing tool to be fitted with the rib structure. The rib structure includes a push plate configured to push the fixing tool toward the inner surface of the casing, and the fixing tool includes a projection configured to come into contact with the push plate. The position where the push plate pushes the projection is horizontally aligned with the position where the fixing tool is fastened and fixed using an attachment hole of the casing.Type: GrantFiled: March 27, 2012Date of Patent: November 19, 2013Assignee: Kabushiki Kaisha ToshibaInventor: Takashi Asano
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Patent number: 8360945Abstract: An automatic tool storing mechanism which has a plurality of magazines, a transporting device, and a tool exchanging part. Each magazine holds a number of pots each provided with tools. The transporting device transports tool-mounted pots one by one between the position close to the magazine and the waiting position close to the main spindle. The tool exchanging arm takes out an unused tool from the pot which is waiting at the waiting position and attaches it to the main spindle and also removes the used tool from the main spindle and places it in the pot. (FIG.Type: GrantFiled: April 20, 2010Date of Patent: January 29, 2013Assignee: Kitamura Machinery Co., Ltd.Inventors: Akihiro Kitamura, Kosaku Kitamura, Takashi Asano
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Patent number: D716351Type: GrantFiled: March 11, 2014Date of Patent: October 28, 2014Assignee: Kitamura Machinery Co., Ltd.Inventors: Akihiro Kitamura, Kosaku Kitamura, Takashi Asano, Takayuki Yamazaki