Patents by Inventor Yoshinori Isoda
Yoshinori Isoda 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: 20240002997Abstract: A sputtering target includes a gallium nitride-based crystalline body composed of a plurality of gallium nitride-based monocrystalline grains whose c-axes are orientated in a direction normal to a predetermined surface. The gallium nitride-based crystalline body has a total oxygen concentration of 150 mass ppm or lower, and the gallium nitride-based monocrystalline grains have oxygen concentrations of 2×1017 cm?3 or higher measured by dynamic SIMS method.Type: ApplicationFiled: September 12, 2023Publication date: January 4, 2024Inventors: Kentaro NONAKA, Yoshinori ISODA, Katsuhiro IMAI
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Publication number: 20230047337Abstract: An analysis device includes a storage unit that stores input sentences in association with information for distinguishing users, an extraction unit that extracts the input sentences stored in the storage unit on a per-user basis for respective corresponding functions, a classification unit that classifies the input sentences into intra-user similarity groups on the per-user basis for respective corresponding functions so that the input sentences extracted by the extraction unit form the intra-user similarity group consisting of input sentences similar to each other, an aggregation unit that aggregates the intra-user similarity groups among users on the per-function basis so that the intra-user similarity groups form an inter-user similarity group consisting of intra-user similarity groups similar to each other, and an output unit that outputs an aggregation result of the aggregation unit.Type: ApplicationFiled: December 25, 2020Publication date: February 16, 2023Applicant: NTT DOCOMO, INC.Inventors: Hiroki ASAI, Hisashi KURASAWA, Yoshinori ISODA
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Publication number: 20230015324Abstract: A retrieval device 10 includes an input unit 11 configured to receive a search query from a user, a retrieval unit 12 configured to calculate a degree of fitness between the search query and each of a plurality of pieces of retrieval target data, a query expansion unit 13 configured to generate an expanded search query, and a policy determination unit 14 configured to determine which of a first process and a second process is to be executed on the basis of the degree of fitness for each piece of the retrieval data calculated by the retrieval unit 12. The first process is presenting the retrieval target data having a high degree of fitness to the user. The second process is proposing to the user that the retrieval unit is caused to calculate the degree of fitness for each piece of the retrieval target data using the expanded search query.Type: ApplicationFiled: October 27, 2020Publication date: January 19, 2023Applicant: NTT DOCOMO, INC.Inventors: Hisashi KURASAWA, Yoshinori ISODA, Itsuki SHIBATA, Eri MATSUO
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Publication number: 20230009949Abstract: A translation device includes a storage unit configured to store a plurality of pieces of learning data, a normalized sentence learning unit configured to perform learning on the plurality of pieces of learning data by combining original text for learning and a corresponding normalized sentence for learning, a translated sentence learning unit configured to perform learning on the plurality of pieces of learning data by combining the original text for learning and a corresponding translated sentence for learning, and a model generation unit configured to generate one normalization/translation model on the basis of a result of learning by the normalized sentence learning unit and the translated sentence learning unit, in which, on at least a part of the learning data, the translated sentence learning unit performs learning after the normalized sentence learning unit performs learning.Type: ApplicationFiled: December 11, 2020Publication date: January 12, 2023Applicant: NTT DOCOMO, INC.Inventors: Toshimitsu NAKAMURA, Noritaka OKAMOTO, Wataru UCHIDA, Yoshinori ISODA
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Publication number: 20220399021Abstract: An interaction assistance device 10 is configured to: calculate a first use degree representing a degree to which a function is used in accordance with the user speech in a first period for each function by referring to an interaction history DB (10a) storing an interaction history for each user including information representing a function corresponding to the user speech input by one or more users and information representing a time point at which the function was executed; determine a target function on the basis of the first use degree for each function; generate speech examples corresponding to the target function; and determine speech examples to be presented to the user from among the speech examples generated by the speech example generating unit (14).Type: ApplicationFiled: October 27, 2020Publication date: December 15, 2022Applicant: NTT DOCOMO, INC.Inventors: Hiroki ASAI, Hisashi KURASAWA, Yoshinori ISODA
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Publication number: 20220275532Abstract: A group 13 nitride crystal layer is composed of a group 13 nitride crystal selected from gallium nitride, aluminum nitride, indium nitride or the mixed crystals thereof, and the group 13 nitride crystal layer includes an upper surface and bottom surface. The group 13 nitride crystal layer includes high-luminance layers and low-luminance layers being present alternately, and the low-luminance layers have thicknesses of 3 or larger and 10 or smaller provided that 1 is assigned to a thickness of the high-luminance layer, when a cross section of the group 13 nitride crystal layer cut in a direction perpendicular to the upper surface is observed by cathode luminescence.Type: ApplicationFiled: May 18, 2022Publication date: September 1, 2022Inventors: Suguru NOGUCHI, Takayuki HIRAO, Yoshinori ISODA, Tetsuya UCHIKAWA
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Publication number: 20220245363Abstract: A generation device is a device that generates a translated sentence in a second language from an input sentence in a first language to be translated. The generation device includes: an acquisition unit that acquires the input sentence; a normalization unit that converts the input sentence into a normalized sentence that is a grammatically correct sentence in the first language; and a first translation unit that generates the translated sentence by translating the normalized sentence into the second language using first parallel translation data that is parallel translation data between the first language and the second language. The normalization unit generates the normalized sentence by using second parallel translation data that is parallel translation data between a third language and the first language. A data amount of the second parallel translation data is larger than a data amount of the first parallel translation data.Type: ApplicationFiled: April 17, 2020Publication date: August 4, 2022Applicant: NTT DOCOMO, INC.Inventors: Toshimitsu NAKAMURA, Noritaka OKAMOTO, Wataru UCHIDA, Yoshinori ISODA
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Patent number: 11198648Abstract: A cordierite-based sintered body according to the present invention contains cordierite as a main component and silicon nitride or silicon carbide. The cordierite-based sintered body preferably has a thermal expansion coefficient less than 2.4 ppm/° C. at 40° C. to 400° C., an open porosity of 0.5% or less, and an average grain size of 1 ?m or less.Type: GrantFiled: March 20, 2017Date of Patent: December 14, 2021Assignee: NGK Insulators, Ltd.Inventors: Yoshinori Isoda, Yoshio Suzuki, Katsuhiro Inoue, Yuji Katsuda
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Patent number: 11035055Abstract: It is provided a layer of a nitride of a group 13 element having a first main face and second main face. The layer of the nitride of the group 13 element includes a first void-depleted layer provided on the side of the first main face, a second void-depleted layer provided on the side of the second main face, and the void-distributed layer provided between the first void-depleted layer and second void-depleted layer.Type: GrantFiled: April 16, 2019Date of Patent: June 15, 2021Assignee: NGK Insulators, Ltd.Inventors: Yoshinori Isoda, Suguru Noguchi, Tetsuya Uchikawa, Takayuki Hirao, Takanao Shimodaira, Katsuhiro Imai
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Publication number: 20210056271Abstract: A machine translation control device includes: an extraction unit configured to extract one or more incomplete sentences based on predetermined extraction criteria including a semantic similarity between an input sentence to machine translation and an output sentence from the machine translation with reference to a use log in a machine translation engine that performs machine translation using a machine translation model; an acquisition unit configured to acquire one or more similar sentences which are similar to the extracted incomplete sentence and a similar translated sentence which is a translation of the similar sentence from a translation DB; and a tuning unit configured to tune the machine translation model based on the acquired similar sentence and the acquired similar translated sentence.Type: ApplicationFiled: July 18, 2019Publication date: February 25, 2021Applicant: NTT DOCOMO, INC.Inventors: Takaya ONO, Satoru MIZOGUCHI, Yoshinori ISODA
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Publication number: 20210034824Abstract: A machine translation control device includes: an extraction unit configured to extract one or more frequent sentences from input sentences to machine translation with reference to a use log in a machine translation engine that performs machine translation using a machine translation model; an acquisition unit configured to acquire one or more similar sentences which are similar to the extracted frequent sentence and a similar translated sentence which is a translation of the similar sentence from a translation DB; and a tuning unit configured to tune the machine translation model on the basis of the acquired similar sentence and the acquired similar translated sentence.Type: ApplicationFiled: July 18, 2019Publication date: February 4, 2021Applicant: NTT DOCOMO, INC.Inventors: Takaya ONO, Satoru MIZOGUCHI, Yoshinori ISODA
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Publication number: 20210012067Abstract: A sentence matching system includes an input unit configured to input a sentence, a matching determination unit configured to determine matching between the sentence input by the input unit and a preset matching sentence, wherein precision used to determine the matching in accordance with the matching sentence is set in the matching sentence, and the matching determination unit determines the matching at the precision and priority corresponding to the precision for each matching sentence.Type: ApplicationFiled: February 6, 2019Publication date: January 14, 2021Applicant: NTT DOCOMO, INC.Inventors: Go TANAKA, Kousuke KADONO, Tomoyoshi OONO, Yoshinori ISODA, Takeshi YOSHIMURA
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Publication number: 20190242029Abstract: It is provided a layer of a nitride of a group 13 element having a first main face and second main face. The layer of the nitride of the group 13 element includes a first void-depleted layer provided on the side of the first main face, a second void-depleted layer provided on the side of the second main face, and the void-distributed layer provided between the first void-depleted layer and second void-depleted layer.Type: ApplicationFiled: April 16, 2019Publication date: August 8, 2019Applicant: NGK INSULATORS, LTD.Inventors: Yoshinori ISODA, Suguru NOGUCHI, Tetsuya UCHIKAWA, Takayuki HIRAO, Takanao SHIMODAIRA, Katsuhiro IMAI
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Patent number: 9981876Abstract: A mullite-containing sintered body according to the present invention contains mullite and at least one selected from the group consisting of silicon nitride, silicon oxynitride, and sialon. It is preferable that the mullite-containing sintered body have a thermal expansion coefficient of less than 4.3 ppm/° C. at 40° C. to 400° C., an open porosity of 0.5% or less, and an average grain size of 1.5 ?m or less.Type: GrantFiled: March 9, 2017Date of Patent: May 29, 2018Assignee: NGK Insulators, Ltd.Inventors: Yoshinori Isoda, Yoshio Suzuki, Katsuhiro Inoue, Yuji Katsuda
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Patent number: 9892950Abstract: A ceramic member 30 according to the present invention includes a ceramic base 32, which contains a solid solution Mg(Al)O(N) in which Al and N components are dissolved in magnesium oxide as the main phase, and an electrode 34 disposed on a portion of the ceramic base 32 and containing at least one of nitrides, carbides, carbonitrides, and metals as an electrode component. The ceramic base 32 may have an XRD peak of a (111), (200), or (220) plane of Mg(Al)O(N) measured using a CuK? ray at 2?=36.9 to 39, 42.9 to 44.8, or 62.3 to 65.2 degrees, respectively, between a magnesium oxide cubic crystal peak and an aluminum nitride cubic crystal peak.Type: GrantFiled: April 7, 2014Date of Patent: February 13, 2018Assignee: NGK Insulators, Ltd.Inventors: Morimichi Watanabe, Asumi Jindo, Yuji Katsuda, Yosuke Sato, Yoshinori Isoda, Atsushi Watanabe
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Patent number: 9776924Abstract: A mullite sintered body according to the present invention has an impurity element content of 1% by mass or less and contains sintered mullite grains having an average grain size of 8 ?m or less. When a surface of the mullite sintered body is finished by polishing, pores in the surface have an average largest pore length of 0.4 ?m or less. The surface preferably has a center line average surface roughness (Ra) of 3 nm or less. The surface preferably has a maximum peak height (Rp) of 30 nm or less. The number of pores in the surface is preferably 10 or less per unit area of 4 ?m×4 ?m.Type: GrantFiled: March 9, 2016Date of Patent: October 3, 2017Assignee: NGK Insulators, Ltd.Inventors: Yoshinori Isoda, Yosuke Sato, Yuji Katsuda
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Publication number: 20170275206Abstract: A mullite-containing sintered body according to the present invention contains mullite and at least one selected from the group consisting of silicon nitride, silicon oxynitride, and sialon. It is preferable that the mullite-containing sintered body have a thermal expansion coefficient of less than 4.3 ppm/° C. at 40° C. to 400° C., an open porosity of 0.5% or less, and an average grain size of 1.5 ?m or less.Type: ApplicationFiled: March 9, 2017Publication date: September 28, 2017Applicant: NGK INSULATORS, LTD.Inventors: Yoshinori ISODA, Yoshio SUZUKI, Katsuhiro INOUE, Yuji KATSUDA
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Publication number: 20170275207Abstract: A cordierite-based sintered body according to the present invention contains cordierite as a main component and silicon nitride or silicon carbide. The cordierite-based sintered body preferably has a thermal expansion coefficient less than 2.4 ppm; ° C. at 40° C. to 400° C., an open porosity of 0.5% or less, and an average grain size of 1 ?m or less.Type: ApplicationFiled: March 20, 2017Publication date: September 28, 2017Applicant: NGK INSULATORS, LTD.Inventors: Yoshinori ISODA, Yoshio SUZUKI, Katsuhiro INOUE, Yuji KATSUDA
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Patent number: 9771303Abstract: In an X-ray diffraction diagram of a cordierite sintered body of the present invention, the ratio of the total of the maximum peak intensities of components other than cordierite components to the peak top intensity of the (110) plane of cordierite is 0.0025 or less. Since having a significantly small amount of different phases other than the cordierite components, this cordierite sintered body has a high surface flatness when the surface thereof is mirror-polished.Type: GrantFiled: May 20, 2016Date of Patent: September 26, 2017Assignee: NGK Insulators, Ltd.Inventors: Yoshinori Isoda, Yosuke Sato, Yuji Katsuda
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Patent number: 9475733Abstract: The present invention provides a ceramic material comprising magnesium, gallium, lithium, and oxygen as main components, wherein a crystal phase of a solid solution attained by dissolving gallium oxide and lithium oxide in magnesium oxide is a main phase. An XRD peak of a (200) plane of the solid solution with CuK? rays preferably appears at 2?=42.91° or more which is larger than an angle at which a peak of a Cubic crystal of magnesium oxide appears, more preferably appears at 2?=42.91° to 43.28°, and further preferably appears at 2?=42.91° to 43.02°. In the ceramic material, a molar ratio Li/Ga of Li to Ga is preferably 0.80 or more and 1.20 or less.Type: GrantFiled: April 22, 2015Date of Patent: October 25, 2016Assignee: NGK Insulators, Ltd.Inventors: Yosuke Sato, Yoshinori Isoda, Yuji Katsuda