Patents Assigned to Tokyo Metropolitan University
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Publication number: 20180166077Abstract: A language storage method according to one aspect of the present invention includes vectorization steps for vectorizing language accumulated in a dialog log database using a word vector created in advance for each word; determination step for determining whether to employ the language that has been vectorized as response data; and a storage step for accumulating the language that has been determined to be employed as the response data in a response database, in which a dimension reduction step for reducing the number of dimensions of the vector of the language vectorized in the vectorization step is included between the vectorization step and the determination step, and in the determination step, it is determined which one of an employed group and an unemployed group the vector of the language whose number of dimensions has been reduced in the dimension reduction step belongs to.Type: ApplicationFiled: December 7, 2017Publication date: June 14, 2018Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, Tokyo Metropolitan UniversityInventors: Toru Yamaguchi, Eri Shimokawara, Kazuki Hirata, Tomoya Takatani
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Patent number: 9954544Abstract: A method for generating a CPT resonance, includes applying an electric current to a laser light-emitting element, to emit laser light having at least two wavelengths. The value of a direct current component of the electric current applied to the laser light-emitting element in a first period is greater than an oscillation threshold for the laser light-emitting element, and the value of the direct current component of the electric current applied to the laser light-emitting element in a second period, following the first period, is less than the value of the direct current component of the electric current in the first period. An alkali metal atom is irradiated with the laser light, the laser light generated in the first period and the laser light generated in the second period entering the alkali metal atom repeatedly a plurality of times to generate a Ramsey resonance.Type: GrantFiled: March 9, 2016Date of Patent: April 24, 2018Assignees: RICOH COMPANY, LTD., TOKYO METROPOLITAN UNIVERSITYInventors: Shigeyoshi Goka, Yuichiro Yano, Takumi Ide
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Patent number: 9935466Abstract: Three or more photovoltaic cell units connected in series include a unit holding a voltage between output terminals, a first voltage holding unit group having a voltage holding unit holding a voltage between an anode-side terminal and a cathode-side terminal for each photovoltaic cell unit set with respect to each set of the (2k+1)th and (2k+2)th photovoltaic cell units connected in series to each other counted from the anode side, and a second voltage holding unit group having a voltage holding unit holding a voltage between an anode-side terminal and a cathode-side terminal for each photovoltaic cell unit set with respect to each set of the (2k+2)th and (2k+3)th photovoltaic cell units connected in series to each other counted from the anode side.Type: GrantFiled: September 16, 2016Date of Patent: April 3, 2018Assignees: Toyota Jidosha Kabushiki Kaisha, Tokyo Metropolitan UniversityInventors: Shinichi Urabe, Toshihisa Shimizu
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Patent number: 9917592Abstract: An atomic oscillator includes an alkali metal cell encapsulating an alkali metal atom; a light source that emits laser light; a light detector that detects light which has passed through the alkali metal cell; and a polarizer arranged between the alkali metal cell and the light detector. A modulation frequency in the light source is controlled, according to a coherent population trapping resonance which is a light absorption characteristic of a quantum interference effect for two kinds of resonant lights, by modulating the light source to generate sidebands and injecting laser lights with the sidebands into the alkali metal cell. A magnetic field is applied on the alkali metal cell in a direction parallel to a propagating direction of the laser light, and the laser light entering the alkali metal cell has a linear polarization, which is not parallel to a polarization direction of the polarizer.Type: GrantFiled: August 4, 2015Date of Patent: March 13, 2018Assignees: RICOH COMPANY, LTD., Tokyo Metropolitan University, Municipal University Corp.Inventors: Yuichiro Yano, Shigeyoshi Goka
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Publication number: 20170373497Abstract: A solar power generation system includes: solar cells, or solar cells and at least one capacitor, connected in series between output terminals; an accompanying circuit provided for each of the solar cells, or each of the solar cells and each of the at least one capacitor, the accompanying circuit including an inductor and a switching device arranged in series; and a power generation operating point control device. The solar cells, or the solar cells and the at least one capacitor, are divided into units, of which adjacent units share one of the solar cells or one of the at least one capacitor. The power generation operating point control device is provided for each of the units, and is configured to control connection and disconnection of the switching device so as to optimize power generating capacity of the unit for which the power generation operating point control device is provided.Type: ApplicationFiled: June 22, 2017Publication date: December 28, 2017Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, TOKYO METROPOLITAN UNIVERSITYInventors: Shinichi URABE, Toshihisa SHIMIZU
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Patent number: 9852241Abstract: A method for precisely predicting phase equilibrium from existing phase equilibrium data on the basis of a wide range of phase equilibrium data including binary vapor-liquid equilibrium data; a method or apparatus for designing or controlling a component separator or a refiner using the prediction method; and a program for designing this design or control apparatus. Binary phase equilibrium measurement data is used to calculate an index of proximity ratio to critical points and infinite dilution pressure gradients. The obtained index is correlated with the infinite dilution pressure gradients to newly calculate infinite dilution activity coefficients from the respective index to infinite dilution pressure gradients correlations. The obtained infinite dilution activity coefficients values are used to predict phase equilibrium. Thus, the obtained values are used to design or control a component separator or a refiner, such as a distillation column.Type: GrantFiled: September 25, 2012Date of Patent: December 26, 2017Assignee: TOKYO METROPOLITAN UNIVERSITYInventor: Satoru Kato
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Patent number: 9839932Abstract: A surface chemical treatment apparatus provided with: a first conduit having an opening at one end and communicating with a liquid supply means at the other end; a second conduit having at one end an opening that surrounds the opening of the first conduit and communicating with a liquid suction means at the other end; and a moving mechanism for moving the openings of the first and second conduits relative to the solid phase surface, so as to make a surface chemical treatment possible in a fine pattern by allowing the patterning solution to be dispensed through the opening of the first conduit while allowing the solution to be suctioned up together with the surrounding liquid phase or gas phase medium through the opening of the second conduit that surrounds the opening of the first conduit and, thus, preventing seepage of the solution in all directions.Type: GrantFiled: February 14, 2013Date of Patent: December 12, 2017Assignees: SHIMADZU CORPORATION, TOKYO METROPOLITAN UNIVERSITY, WASEDA UNIVERSITYInventors: Katsumi Uchiyama, Hizuru Nakajima, Ming Yang, Hulie Zeng, Yoshiyuki Sugahara, Takahiro Nishimoto
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Publication number: 20170279101Abstract: Provided is a separator which can make the electric field on the surface of a negative electrode for a metal secondary battery homogeneous to thereby prevent the formation of dendrites. A porous separator for metal secondary batteries, which has a polymer electrolyte layer formed on the surface layer of at least one main surface of a porous polyimide film. It is preferred that the polymer electrolyte layer is composed of both a polymer electrolyte material which is supported on at least one main surface of the porous polyimide film and a polymer electrolyte material which is supported in voids in a layered region that extends from the main surface.Type: ApplicationFiled: August 27, 2015Publication date: September 28, 2017Applicants: TOKYO OHKO KOGYO CO., LTD., TOKYO METROPOLITAN UNIVERSITY, 3DOM INC.Inventors: Hiroyoshi SAGO, Kiyoshi KANAMURA, Hirokazu MUNAKATA, Kazuhiro IMAZAWA
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Patent number: 9672965Abstract: A reactor includes a laminated core formed by laminating soft-magnetic ribbons in a lamination direction. The laminated core has a gap formed across a magnetic path direction in the laminated core. The laminated core also has a flat facing surface that faces the gap and a pair of flat side surfaces that are respectively on opposite sides of the facing surface in the lamination direction. The laminated core further has a pair of first corner curved surfaces that are formed between the facing surface and the pair of side surfaces. Each of the first corner curved surfaces has a width in the lamination direction greater than the thickness of each of the soft-magnetic ribbons. For each of the first corner curved surfaces, a length of the first corner curved surface in the magnetic path direction is greater than the width of the first corner curved surface in the lamination direction.Type: GrantFiled: May 14, 2015Date of Patent: June 6, 2017Assignees: DENSO CORPORATION, TOKYO METROPOLITAN UNIVERSITYInventors: Takahiro Tera, Hiroshi Taki, Toshihisa Shimizu
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Application architecture design method, application architecture design system, and recording medium
Patent number: 9626156Abstract: Provided is an application architecture design method in which an information processing device is used, the method including the steps of: inputting information about dependency relations and design aspects, which are design items regarding modules for running functions, virtual machines for running the modules, and physical machines for running the virtual machines; and executing processing of adapting architecture properly by switching the input information about the dependency relations and the design aspects in matrices in a DSM format, and thereby rearranging allocation of the modules, allocation of the virtual machines, and allocation of the physical machines in stages in the DSM format. As a result, an excellent design solution for architecture suitable for a virtualized environment, a cloud environment deriving, or a similar environment can be derived.Type: GrantFiled: April 19, 2012Date of Patent: April 18, 2017Assignees: NEC Corporation, Tokyo Metropolitan University, The University of TokyoInventors: Shigeru Hosono, Koji Kimita, Fumiya Akasaka, Tatsunori Hara, Yoshiki Shimomura, Tamio Arai -
Patent number: 9602049Abstract: In a circuit device controlling an operating point of each of two or more series-connected photovoltaic cells or other power supply cells in a module, the output voltage of the module can be boosted without reducing the generated electric power. The operating point control circuit device includes capacitors connected in parallel to the respective series-connected cells, switching elements connected in parallel to the respective series-connected cells through an inductor, an additional capacitor connected in series to the capacitor row, and an additional switching element connected in series to the switching element row. The switching elements are controlled to shut off electrical conduction between the corresponding terminals connected thereto in the same predetermined cycle and in mutually different periods so as to always establish a condition that one switching element is in the non-conductive state and the others are is in the conductive state.Type: GrantFiled: April 27, 2016Date of Patent: March 21, 2017Assignees: Toyota Jidosha Kabushiki Kaisha, Tokyo Metropolitan UniversityInventors: Shinichi Urabe, Toshihisa Shimizu
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Patent number: 9533285Abstract: A gold cluster catalyst is capable of promoting/controlling a chemical reaction with high catalytic activity and selectivity. The gold cluster catalyst has a carrier supporting clusters, each of which is an aggregate of a plurality of gold atoms, which can be obtained by providing the carrier supporting a plurality of gold cluster compounds and then processing the gold cluster compounds on the carrier, in which each of the gold cluster compounds is stabilized by an organic ligand and including a predetermined number of gold atoms. In the gold cluster catalyst, each of the clusters may have a particle diameter of 10 nm or less and be formed substantially only of gold atoms.Type: GrantFiled: June 7, 2013Date of Patent: January 3, 2017Assignee: TOKYO METROPOLITAN UNIVERSITYInventors: Masatake Haruta, Yue Yu, Jiahui Huang, Ayako Taketoshi, Tamao Ishida, Tomoki Akita, Atsushi Ogata, Hyun-Ha Kim
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Patent number: 9520335Abstract: An object is to provide a method for manufacturing a wavelength selective heat radiation material in which a surface roughness of an upper portion of a cavity wall defining each microcavity is suppressed or in which microcavities each having an aspect ratio larger than 3.0 are formed. For the wavelength selective heat radiation material, a base material having a mask having predetermined openings tightly adhered to a surface thereof, or a base material in which depressions are previously formed on one surface thereof by pressing a die having projections arrayed so as to correspond to positions of microcavities thereagainst, is subjected to anisotropic etching, thereby providing a wavelength selective heat radiation material in which the surface roughness of the upper portion of the cavity wall defining each of the microcavities is suppressed or a wavelength selective heat radiation material having microcavities whose each aspect ratio is larger than 3.0.Type: GrantFiled: April 2, 2015Date of Patent: December 13, 2016Assignees: TOKYO METROPOLITAN UNIVERSITY, OKITSUMO INCORPORATEDInventors: Hideki Masuda, Toshiaki Kondo, Takashi Toyonaga, Naoshi Kimura, Fumitaka Yoshioka
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Publication number: 20160322931Abstract: In a circuit device controlling an operating point of each of two or more series-connected photovoltaic cells or other power supply cells in a module, the output voltage of the module can be boosted without reducing the generated electric power. The operating point control circuit device includes capacitors connected in parallel to the respective series-connected cells, switching elements connected in parallel to the respective series-connected cells through an inductor, an additional capacitor connected in series to the capacitor row, and an additional switching element connected in series to the switching element row. The switching elements are controlled to shut off electrical conduction between the corresponding terminals connected thereto in the same predetermined cycle and in mutually different periods so as to always establish a condition that one switching element is in the non-conductive state and the others are is in the conductive state.Type: ApplicationFiled: April 27, 2016Publication date: November 3, 2016Applicants: Toyota Jidosha Kabushiki Kaisha, Tokyo Metropolitan UniversityInventors: Shinichi Urabe, Toshihisa Shimizu
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Publication number: 20160316225Abstract: There is provided an image processing apparatus which includes a division unit dividing an image into a plurality of images in a bit depth direction, and an encoding unit encoding respectively some or all of the plurality of images acquired by dividing the image in the bit depth direction by the division unit.Type: ApplicationFiled: July 1, 2016Publication date: October 27, 2016Applicants: Sony Corporation, Tokyo Metropolitan UniversityInventors: Takahiro FUKUHARA, Hitoshi KIYA
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Publication number: 20160269037Abstract: A method for generating a CPT resonance, includes applying an electric current to a laser light-emitting element, to emit laser light having at least two wavelengths. The value of a direct current component of the electric current applied to the laser light-emitting element in a first period is greater than an oscillation threshold for the laser light-emitting element, and the value of the direct current component of the electric current applied to the laser light-emitting element in a second period, following the first period, is less than the value of the direct current component of the electric current in the first period. An alkali metal atom is irradiated with the laser light, the laser light generated in the first period and the laser light generated in the second period entering the alkali metal atom repeatedly a plurality of times to generate a Ramsey resonance.Type: ApplicationFiled: March 9, 2016Publication date: September 15, 2016Applicants: RICOH COMPANY, LTD., Tokyo Metropolitan UniversityInventors: Shigeyoshi GOKA, Yuichiro YANO, Takumi IDE
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Patent number: 9444476Abstract: An atomic oscillator includes an alkali-metal cell in which alkali-metal atoms are enclosed, a light source which irradiates the atoms in the alkali-metal cell with laser beams, a photodetector which detects a light amount of the laser beams passing through the alkali-metal cell to enter the photodetector, and a controller which generates sidebands including a pair of laser beams with different wavelengths by performing frequency modulation of a carrier on the light source, causes the pair of laser beams with the different wavelengths to enter the alkali-metal cell, and controls a modulation frequency according to optical absorption characteristics of the atoms by quantum interference effects of a pair of resonance laser beams, wherein the side bands include second-order or higher-order sidebands.Type: GrantFiled: August 28, 2013Date of Patent: September 13, 2016Assignees: RICOH COMPANY, LTD., Tokyo Metropolitan UniversityInventors: Shigeyoshi Goka, Yuichiro Yano
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Publication number: 20160260649Abstract: An object is to provide a method for manufacturing a wavelength selective heat radiation material in which a surface roughness of an upper portion of a cavity wall defining each microcavity is suppressed or in which microcavities each having an aspect ratio larger than 3.0 are formed. For the wavelength selective heat radiation material, a base material having a mask having predetermined openings tightly adhered to a surface thereof, or a base material in which depressions are previously formed on one surface thereof by pressing a die having projections arrayed so as to correspond to positions of microcavities thereagainst, is subjected to anisotropic etching, thereby providing a wavelength selective heat radiation material in which the surface roughness of the upper portion of the cavity wall defining each of the microcavities is suppressed or a wavelength selective heat radiation material having microcavities whose each aspect ratio is larger than 3.0.Type: ApplicationFiled: April 2, 2015Publication date: September 8, 2016Applicants: Tokyo Metropolitan University, Okitsumo IncorporatedInventors: Hideki MASUDA, Toshiaki KONDO, Takashi TOYONAGA, Naoshi KIMURA, Fumitaka YOSHIOKA
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Patent number: 9414068Abstract: There is provided an image processing apparatus which includes a division unit dividing an image into a plurality of images in a bit depth direction, and an encoding unit encoding respectively some or all of the plurality of images acquired by dividing the image in the bit depth direction by the division unit.Type: GrantFiled: July 1, 2014Date of Patent: August 9, 2016Assignees: SONY CORPORATION, TOKYO METROPOLITAN UNIVERSITYInventors: Takahiro Fukuhara, Hitoshi Kiya
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Patent number: 9367755Abstract: There is provided an image processing apparatus including a quantization unit that quantizes an image subjected to logarithmic conversion such that a quantization error is focused on a luminance region in which expansion of an error caused due to logarithmic inverse-conversion which is inverse conversion of the logarithmic conversion is relatively small or a luminance region in which no expansion of the error occurs; and an encoding unit that encodes an index image obtained through the quantization by the quantization unit.Type: GrantFiled: September 12, 2014Date of Patent: June 14, 2016Assignees: SONY CORPORATION, TOKYO METROPOLITAN UNIVERSITYInventors: Takahiro Fukuhara, Hitoshi Kiya