Patents by Inventor Hiroshi Fujimura
Hiroshi Fujimura 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: 11973369Abstract: A laminated core includes a plurality of electrical steel sheets stacked on each other, wherein, among the plurality of electrical steel sheets, both of the electrical steel sheets located on a first side in a stacking direction and the electrical steel sheets located on a second side in the stacking direction are fastened to each other but are not adhered to each other, and the electrical steel sheets located in a center in the stacking direction are adhered to each other but are not fastened to each other.Type: GrantFiled: December 17, 2019Date of Patent: April 30, 2024Assignee: NIPPON STEEL CORPORATIONInventors: Hiroshi Fujimura, Takeaki Wakisaka, Ryu Hirayama
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Patent number: 11961510Abstract: According to one embodiment, an information processing apparatus includes following units. The acquisition unit acquires first training data including a combination of a voice feature quantity and a correct phoneme label of the voice feature quantity. The training unit trains an acoustic model using the first training data in a manner to output the correct phoneme label in response to input of the voice feature quantity. The extraction unit extracts from the first training data, second training data including voice feature quantities of at least one of a keyword, a sub-word, a syllable, or a phoneme included in the keyword. The adaptation processing unit adapts the trained acoustic model using the second training data to a keyword detection model.Type: GrantFiled: February 28, 2020Date of Patent: April 16, 2024Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Ning Ding, Hiroshi Fujimura
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Publication number: 20240096531Abstract: There is provided a non-oriented electrical steel sheet having a predetermined chemical composition, in which an area fraction of a crystal structure A composed of crystal grains having a grain size of 100 ?m or more is 1% to 30% in a cross section parallel to a rolled plane of the non-oriented electrical steel sheet, an average grain size of a crystal structure B which is a crystal structure other than the crystal structure A is 40 ?m or less, and a Vickers hardness HvA of the crystal structure A and a Vickers hardness HvB of the crystal structure B satisfy Equation 1 ((HvA2+HvB2)/2?(HvA+HvB)2/4?7.0).Type: ApplicationFiled: March 28, 2022Publication date: March 21, 2024Applicant: NIPPON STEEL CORPORATIONInventors: Ichiro TANAKA, Takeaki WAKISAKA, Tesshu MURAKAWA, Yoshiaki NATORI, Hiroshi FUJIMURA
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Publication number: 20240088588Abstract: A power converter includes first and second components on which male and female fitting members of each of a plurality of pairs of fitting members are arranged, with a pair of first alignment keys formed in the first and second components as reference positions. The first and second components are coupled to each other by the female fitting member clamping an insertion portion of the male fitting member inserted between first and second clamping portions of the female fitting member arranged so as to face each other in a state where the pair of first alignment keys are positionally aligned. The first and second clamping portions are each bent so as to form one of protrusions toward one of surfaces thereof facing each other. A gap is formed in a distal end portion of each of the first and second clamping portions.Type: ApplicationFiled: November 21, 2023Publication date: March 14, 2024Inventors: Motohiko FUJIMURA, Hiroshi OGURA, Kazuhiro NISHIKAWA, Yoshihiro KAWAKITA, Hidetoshi KITAURA
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Publication number: 20240072476Abstract: An electric power converter includes a first board, a second board, and a first board-to-board connector that electrically and mechanically connects the first board and the second board. The first board-to-board connector includes a male fitting member and a female fitting member. Each of a first clamp portion and a second clamp portion of the female fitting member includes a first contact forming portion and a second contact forming portion that are curved in a protruding shape, and a first spring portion and a second spring portion that are connected to the first contact forming portion and the second contact portion, respectively, and that are curved in corrugated shapes. An insert clamped between the first contact forming portion and the second contact forming portion forms an electrical contact, and the first spring portion and the second spring portion are independently deformable.Type: ApplicationFiled: November 7, 2023Publication date: February 29, 2024Inventors: HIDETOSHI KITAURA, HIROSHI OGURA, MOTOHIKO FUJIMURA, KAZUHIRO NISHIKAWA, YOSHIHIRO KAWAKITA
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Publication number: 20240047105Abstract: What is provided is a non-oriented electrical steel sheet having a chemical composition in which, by mass %, C: 0.010% or less, Si: 1.50% to 4.00%, sol. Al: 0.0001% to 1.0%, S: 0.010% or less, N: 0.010% or less and one or a plurality of elements selected from the group consisting of Mn, Ni, Co, Pt, Pb, Cu and Au: 2.50% to 5.00% in total with a remainder including Fe and impurities, in which a recrystallization rate is 1% to 99% in a metallographic structure, a sheet thickness is 0.50 mm or less, and, in the case of measuring a magnetic flux density B50 after annealing the non-oriented electrical steel sheet at 800° C. for two hours, a magnetic flux density B50 in a 45° direction with respect to a rolling direction is 1.75 T or more.Type: ApplicationFiled: November 13, 2020Publication date: February 8, 2024Applicant: NIPPON STEEL CORPORATIONInventors: Tesshu MURAKAWA, Miho TOMITA, Hiroshi FUJIMURA, Satoshi KANO
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Patent number: 11881341Abstract: Disclosed is a method of manufacturing a core sheet. The core sheet has an annular core back portion and a plurality of tooth portions extending from the core back portion toward a radial center thereof. The method includes a blanking step, a rolling step and a removing step. In the removing step, an insulation coating, which is on a region of a grain-oriented magnetic steel sheet for forming a band-shaped core back portion, on a band-shaped core back portion of a sheet piece or on the core back portion of the core sheet, is at least partially removed.Type: GrantFiled: March 31, 2020Date of Patent: January 23, 2024Assignees: DENSO CORPORATION, NIPPON STEEL CORPORATIONInventors: Tetsuya Aoki, Makoto Taniguchi, Atsuo Ishizuka, Satoshi Doi, Keiichi Okazaki, Hiroshi Fujimura, Tatsuya Takase
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Publication number: 20230410747Abstract: A control method is a method of a display device including a plurality of pixel circuits. Each of the pixel circuits includes a light emitting element, a drive transistor, and a pixel capacitance. The drive transistor includes a gate and a source. A frame period includes a first subframe period and at least one second subframe period. In the first subframe period, the control method includes: (A) applying a first initialization potential to the source; (B) writing a signal into the pixel capacitance; and (C) causing the light emitting element to emit light. In each of the at least one second subframe period, the control method includes: (D) maintaining the light emitting element in a non-emission state; (E) applying a second initialization potential to the source in (D); and (F) causing the light emitting element to emit light.Type: ApplicationFiled: June 14, 2023Publication date: December 21, 2023Applicant: JOLED INC.Inventors: Hiroshi FUJIMURA, Hitoshi TSUGE
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Patent number: 11823669Abstract: According to one embodiment, an information processing apparatus include following units. The first acquisition unit acquires speech data including frames. The second acquisition unit acquires a model trained to, upon input of a feature amount extracted from the speech data, output information indicative of likelihood of each of a plurality of classes including a component of a keyword and a component of background noise. The first calculation unit calculates a keyword score indicative of occurrence probability of the component of the keyword. The second calculation unit calculates a background noise score indicative of occurrence probability of the component of the background noise. The determination unit determines whether or not the speech data includes the keyword.Type: GrantFiled: February 28, 2020Date of Patent: November 21, 2023Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Ning Ding, Hiroshi Fujimura
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Patent number: 11795518Abstract: Provided are a non-oriented electrical steel sheet with which it is possible to improve steel sheet transferability even when punching is performed successively at high speed, and a method of manufacturing a stacked core using the same. The non-oriented electrical steel sheet contains, by mass percent, Si: 2.0 to 5.0%, Mn: 0.4 to 5.0%, Al?3.0%, C: 0.0008 to 0.0100%, N?0.0030%, S?0.0030%, and Ti?0.0060%, wherein the product of the contents of Mn and C is 0.004 to 0.05 mass %2, the yield strength in rolling direction is more than or equal to 600 MPa, and the Young's modulus is more than or equal to 200 GPa. In the method of manufacturing a stacked core, when manufacturing a stacked core using a progressive die, the steel sheet transfer speed V (m/s) satisfies expression (1). V: VMIN to VMAX (1) VMAX=( 1/25)?(t2×E×YS) (2) VMIN=( 1/25)?(t2×120000) (3) t: Steel sheet thickness (mm), E: Young's ratio (GPa), YS: Yield strength (MPa).Type: GrantFiled: October 24, 2019Date of Patent: October 24, 2023Assignee: NIPPON STEEL CORPORATIONInventors: Hiroshi Fujimura, Satoshi Kano, Miho Tomita
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Patent number: 11783129Abstract: An interactive control system according to an embodiment includes one or more hardware processors configured to function as a detection unit, a conversion unit, first and second estimation units, and an attribute determination unit. The detection unit detects an input keyword from input information. The conversion unit converts the input information into information including the input keyword and the input-keyword-excluded context information. The first estimation unit estimates, from the context information, at least a first estimate information piece in which the input keyword's first attribute is associated with a first likelihood of the first attribute. The second estimation unit estimates, from the input keyword, at least a second estimate information piece in which the input keyword's second attribute is associated with a second likelihood of the second attribute. The attribute determination unit determines the input keyword's attribute based on the first and second estimate information.Type: GrantFiled: February 24, 2020Date of Patent: October 10, 2023Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Yuka Kobayashi, Hiroshi Fujimura, Kenji Iwata, Takami Yoshida
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Publication number: 20230252344Abstract: According to one embodiment, a machine learning apparatus includes a processing circuit. The processing circuit generates a training sample in a VQA format regarding a VQA task based on a sample in a non-VQA format. The training sample in the VQA format includes a combination of an object, a question text regarding the object and an answer text in response to the question text as elements, and the sample in the non-VQA format includes a combination of an object and a label related to the object as elements. The processing circuit trains a statistical model of the VQA task based on the generated training sample in the VQA format.Type: ApplicationFiled: August 26, 2022Publication date: August 10, 2023Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Nao MISHIMA, Quoc Viet PHAM, Yusuke HOSOYA, Hiroshi FUJIMURA
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Patent number: 11705122Abstract: According to one embodiment, the interface-providing apparatus comprises an identifying unit and a generating unit. The identifying unit identifies a keyword from dialogue data including a question text to request information, and a response text in reply thereto. The generating unit generates display information to display a user interface for receiving feedback input relating to a degree of usefulness of a keyword when searching for the requested information.Type: GrantFiled: August 31, 2020Date of Patent: July 18, 2023Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Kenji Iwata, Hiroshi Fujimura, Takami Yoshida
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Data generation apparatus and data generation method that generate recognition text from speech data
Patent number: 11694028Abstract: According to one embodiment, the data generation apparatus includes a speech synthesis unit, a speech recognition unit, a matching processing unit, and a dataset generation unit. The speech synthesis unit generates speech data from an original text. The speech recognition unit generates a recognition text by speech recognition from the speech data. The matching processing unit performs matching between the original text and the recognition text. The dataset generation unit generates a dataset in such a manner where the speech data, from which the recognition text satisfying a certain condition for a matching degree relative to the original text is generated, is associated with the original text, based on a matching result.Type: GrantFiled: August 31, 2020Date of Patent: July 4, 2023Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Hiroshi Fujimura, Kenji Iwata, Hui Di, Pengfei Chen -
Patent number: 11680302Abstract: A grain-oriented electrical steel sheet includes: a chemical composition represented by, in mass %, Si: 2.0% to 5.0%, Mn: 0.03% to 0.12%, Cu: 0.10% to 1.00%, sb or Sn, or both thereof: 0.000% to 0.3% in total, Cr: 0% to 0.3%, P: 0% to 0.5%, Ni: 0% to 1%, and the balance: Fe and impurities, in which an L-direction average diameter of crystal grains observed on a surface of the steel sheet in an L direction parallel to a rolling direction is equal to or more than 3.0 times a C-direction average diameter in a C direction vertical to the rolling direction.Type: GrantFiled: September 28, 2016Date of Patent: June 20, 2023Assignee: NIPPON STEEL CORPORATIONInventors: Hiroshi Fujimura, Fumiaki Takahashi, Takashi Kataoka
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Patent number: 11620981Abstract: According to one embodiment, a speech recognition error correction apparatus includes a correction network memory and an error correction circuitry. The error correction circuitry calculates a difference between a speech recognition result string of an error correction target, which is a result of performing speech recognition on a new series of speech data, and a correction network, where a speech recognition result string and a correction result by a user for the speech recognition result string are associated, and when a value indicating the difference is equal to or less than a threshold, perform error correction on a speech recognition error portion in the speech recognition result string of the error correction target by using the correction network to generate a speech recognition error correction result string.Type: GrantFiled: September 4, 2020Date of Patent: April 4, 2023Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Taira Ashikawa, Hiroshi Fujimura, Kenji Iwata
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Patent number: 11615126Abstract: An analyzing apparatus according to an embodiment includes a memory and a hardware processor coupled to the memory. The hardware processor is configured to: calculate a first similarity between a first word representing a category and a second word; apply, to one or more template sentences, each of one or more second words having the first similarity higher than a first threshold; analyze the one or more template sentences each including the second word and classify the second word into one or more first categories; and display, for each of the first categories, the second word used in the classification into the first categories on a display device.Type: GrantFiled: February 27, 2020Date of Patent: March 28, 2023Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Yuka Kobayashi, Hiroshi Fujimura, Kenji Iwata, Takami Yoshida
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Patent number: 11538475Abstract: According to one embodiment, an information processing apparatus includes an acquisition unit, a conversion unit, and a display controller. The acquisition unit acquires multimedia data associated with an item of record data having a plurality of items. The conversion unit performs a conversion process from the multimedia data to first display data showing a content of the multimedia data. The display controller displays the first display data when the conversion process is completed, and displays second display data showing a progress status of the conversion process when the conversion process is incomplete in association with the item of the record data.Type: GrantFiled: August 31, 2020Date of Patent: December 27, 2022Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Nayuko Watanabe, Hiroshi Fujimura, Toshiaki Nakasu
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Publication number: 20220396846Abstract: A method for manufacturing a non-oriented electrical steel sheet includes a step of performing hot rolling on a steel material having a predetermined chemical composition, a step of performing first cold rolling, a step of performing process annealing, a step of performing second cold rolling, and a step of performing any one or both of final annealing and stress relief annealing. A final pass of finish rolling is performed in a temperature range equal to or higher than an Ar1 temperature, the steel sheet is held for 2 hours or less in a temperature range lower than an Ac1 temperature in the final annealing, and the steel sheet is held for 1200 sec or more in a temperature range equal to or higher than 600° C. and lower than the Ac1 temperature in the stress relief annealing.Type: ApplicationFiled: November 13, 2020Publication date: December 15, 2022Applicant: NIPPON STEEL CORPORATIONInventors: Tesshu MURAKAWA, Hiroshi FUJIMURA
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Publication number: 20220356549Abstract: What is provided is a non-oriented electrical steel sheet having a chemical composition in which, by mass %, C: 0.010% or less, Si: 1.50% to 4.00%, sol. Al: 0.0001% to 1.0%, S: 0.010% or less, N: 0.010% or less, one or a plurality of elements selected from the group consisting of Mn, Ni, Co, Pt, Pb, Cu and Au: 2.50% to 5.00% in total are contained and a remainder includes Fe and impurities, in which a sheet thickness is 0.50 mm or less, and, in an arbitrary cross section, when an area ratio of {100} crystal grains is indicated by Sac, an area ratio of {110} crystal grains is indicated by Sag, and an area ratio of the {100} crystal grains in a region of up to 20% from a side where a KAM value is high is indicated by Sbc, Sac>Sbc>Sag and 0.05>Sag are satisfied.Type: ApplicationFiled: November 13, 2020Publication date: November 10, 2022Applicant: NIPPON STEEL CORPORATIONInventors: Tesshu MURAKAWA, Miho TOMITA, Hiroshi FUJIMURA, Satoshi KANO