Patents by Inventor Yoshitaka Ito
Yoshitaka Ito 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: 20230066382Abstract: A projector includes a first light source that emits a first light beam from a first light-emitting region including first light-emitting elements, and a second light source that emits a second light beam from a second light-emitting region including second light-emitting elements emitting light. Projector includes optical system that aligns traveling directions of first and second light beams, optical modulation device that adjusts first and second light beams based on image information, projection optical device, and control unit. The control unit changes a light-emitting position of the first light beam in the first light-emitting region to move an illumination region on an image forming region of the optical modulation device, and changes a light-emitting position of the second light beam in the second light-emitting region to move a second illumination region on the image forming region of the optical modulation device in the same direction as the first illumination region.Type: ApplicationFiled: August 29, 2022Publication date: March 2, 2023Applicant: SEIKO EPSON CORPORATIONInventor: Yoshitaka ITO
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Publication number: 20230027011Abstract: To easily evaluate the performance of an earphone-type device used for otoacoustic authentication at low cost. A generation unit (31) generates earhole shape data indicating the three-dimensional shape of an individual's ear canal, on the basis of data on the internal structure of an individual's earhole, a center line calculation unit (32) calculates the center line of the ear canal, on the basis of the ear canal shape data, and a dividing unit (33) divides the ear canal into a plurality of layers perpendicular to the center line, and calculates, for each of the divided layers, parameters indicating the shape of the ear canal.Type: ApplicationFiled: December 13, 2019Publication date: January 26, 2023Applicant: NEC CorporationInventors: Takayuki ARAKAWA, Yoshitaka ITO
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Publication number: 20230008680Abstract: The disclosure accurately authenticates a subject, regardless of which audio device is used for the in-ear acoustic authentication. A feature extraction unit (11) applies a test signal to an ear of a subject using an audio device, and upon receiving an acoustic signal from the subject, extracts, from the acoustic signal, a first feature relating to the system consisting of the audio device and the ear of the subject; a correction unit (12) corrects the first feature to a second feature that would result if a prescribed reference device were used instead of the audio device; and an authentication unit (13) authenticates the subject by comparing the second feature with a feature indicated by pre-registered authentication information.Type: ApplicationFiled: December 26, 2019Publication date: January 12, 2023Applicant: NEC CorporationInventors: Yoshitaka Ito, Takayuki Arakawa, Kouji Oosugi
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Publication number: 20230007418Abstract: [Problem] To evaluate, easily and at low cost, the performance of an earphone device used for ear acoustic certification. [Solution] Holes are provided in a plurality of plate-shaped members (201), an artificial eardrum member (202) corresponds to the eardrum of an individual, and the holes provided in each of the plurality of plate-shaped members (201) are connected, whereby the plurality of plate-shaped members (201) are layered over the artificial eardrum member (202) so as to simulate the external auditory canal of the individual.Type: ApplicationFiled: December 13, 2019Publication date: January 5, 2023Applicant: NEC CorporationInventors: Takayuki ARAKAWA, Yoshitaka ITO
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Publication number: 20220295170Abstract: Provided is an information processing device comprising an acquisition unit configured to acquire acoustic characteristics in a frequency domain based on a sound wave propagating in a head of a user and an extracting unit configured to generate a first frequency response function having a rational polynomial equation to extract feature quantity used for biometric authentication of the user based on the first frequency response function, the rational polynomial equation including terms indicating feature of a peak of the acoustic characteristics in a denominator and terms indicating feature of a notch of the acoustic characteristics in a numerator.Type: ApplicationFiled: September 12, 2019Publication date: September 15, 2022Applicant: NEC CorporationInventors: Yoshitaka ITO, Takayuki ARAKAWA
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Publication number: 20220282413Abstract: A production method for a fiber article includes: a contact step of, while transferring a plurality of first fibers, bringing a plurality of resin particles formed of high molecules that can be fiberized into contact with the plurality of first fibers; a first processing step of applying an external force to the plurality of first fibers brought into contact with the plurality of resin particles and narrowing gaps between fibers; and a second processing step of, by relieving the external force applied to the plurality of first fibers brought into contact with the plurality of resin particles, forming second fibers from the plurality of resin particles, the second fibers each having an outer diameter that is smaller than each of the first fibers and is set to a value in a range of 30 nm or more to 1.0 ?m or less, and forming a fiber composite including the first fibers and the second fibers.Type: ApplicationFiled: August 28, 2020Publication date: September 8, 2022Applicant: DAICEL CORPORATIONInventors: Yoshitaka ITO, Masaya OMURA, Junko MAKINO, Yuki TSUKAMOTO, Fuai UEHARA, Hiroaki SHINTANI
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Publication number: 20220275546Abstract: A fiber article includes a plurality of first fibers and a plurality of second fibers each having an outer diameter smaller than that of each of the first fibers, the plurality of second fibers being supported in a dispersed state by the first fibers. A ratio D1/D2 of an outer diameter D1 of the first fiber to an outer diameter D2 of the second fiber is set to a value in a range of 15.0 or greater to 1666.7 or less. The outer diameter D1 is set to a value in a range of 5.0 ?m or greater to 50.0 ?m or less, and the outer diameter D2 is set to a value in a range of 30.0 nm or greater to 1.0 ?m or less.Type: ApplicationFiled: August 28, 2020Publication date: September 1, 2022Applicants: DAICEL CORPORATION, DAIKIN INDUSTRIES, LTD.Inventors: Yoshitaka ITO, Masaya OMURA, Junko MAKINO, Satoshi HARA, Hiroaki SHINTANI
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Patent number: 11415647Abstract: A magnetic field generator includes a refrigerating machine, a cold head, a superconductor which is formed in a cylindrical shape, a cold head extension portion which extends from the cold head and is brought into thermal contact with the superconductor at its extended end; and a vacuum heat insulating container having an internal space in which the cold head, the cold head extension portion, and the superconductor are received. The superconductor has a room temperature bore space, which is formed on its inner peripheral side along an axial direction of the superconductor, and is spatially isolated from the internal space of the vacuum heat insulating container. The room temperature bore space has both ends communicating to an outside of the magnetic field generator.Type: GrantFiled: January 9, 2020Date of Patent: August 16, 2022Assignees: AISIN SEIKI KABUSHIKI KAISHA, JEOL Ltd.Inventors: Yosuke Yanagi, Yoshitaka Ito, Takashi Nakamura, Hiroaki Utsumi
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Publication number: 20220227809Abstract: A peptide that specifically binds to norovirus, which is useful for detection and infection control of norovirus is provided. A norovirus-binding peptide consisting of an amino acid sequence selected from the group consisting of SEQ ID NOs: 1 to 327.Type: ApplicationFiled: May 28, 2020Publication date: July 21, 2022Applicant: Kao CorporationInventors: Yoshitaka ITO, Takuya MORIMOTO, Shigefumi KUMACHI, Naoto NEMOTO
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Publication number: 20220229058Abstract: Provided is a peptide that specifically binds to norovirus, which is useful for detection and infection control of norovirus. A norovirus-binding peptide consisting of an amino acid sequence selected from the group consisting of SEQ ID NOs: 1 to 185.Type: ApplicationFiled: May 28, 2020Publication date: July 21, 2022Applicant: Kao CorporationInventors: Yoshitaka ITO, Takuya MORIMOTO, Shigefumi KUMACHI, Naoto NEMOTO
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Publication number: 20220221458Abstract: A peptide that specifically binds to norovirus, which is useful for detection and infection control of norovirus is provided. A norovirus-binding peptide consisting of an amino acid sequence selected from the group consisting of SEQ ID NOs: 1 to 269.Type: ApplicationFiled: May 28, 2020Publication date: July 14, 2022Applicant: Kao CorporationInventors: Yoshitaka ITO, Takuya MORIMOTO, Shigefumi KUMACHI, Naoto NEMOTO
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Publication number: 20220176284Abstract: Provided are an air filter medium and an air filter product that can have a long life. The air filter medium includes a filter medium layer that includes first fibers having an average fiber diameter of not less than 5 ?m and not greater than 50 ?m and second fibers disposed in gaps between the first fibers and having an average fiber diameter of not less than 30 nm and not greater than 1 ?m.Type: ApplicationFiled: February 25, 2022Publication date: June 9, 2022Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Satoshi HARA, Hiroaki SHINTANI, Yoshitaka ITO
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Patent number: 11292402Abstract: A deterioration regeneration system includes a pre-post regeneration determination part configured to determine whether or not to execute, with respect to an electric contact to which an electrical or mechanical first external action is applied during an operation of a later-stage device, a deterioration regeneration process of regenerating a connection performance that has been deteriorated due to an increase in a contact resistance of the electric contact, and a deterioration regeneration part configured to execute a process of removing a foreign object present at the electric contact by applying a second external action to the electric contact, as the deterioration regeneration process, according to the determined result from the pre-post regeneration determination part, the second external action being of the same kind as the first external action and larger than the first external action.Type: GrantFiled: October 1, 2019Date of Patent: April 5, 2022Assignee: YAZAKI CORPORATIONInventors: Jun Toyoizumi, Kenzo Tanaka, Yoshitaka Ito
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Patent number: 11169220Abstract: A deterioration degree diagnosis device includes a measurement unit and a diagnosis unit. The measurement unit measures an impedance related to a contact resistance of an electrical connection portion by measuring an AC voltage between metal members and an AC current flowing between the metal members in a state where an AC signal of a predetermined frequency is applied to an electric circuit that connects two metal members in contact via the electrical connection portion. The diagnosis unit diagnoses a deterioration degree of the electrical connection portion based on a reactance component value in the impedance measured by the measurement unit.Type: GrantFiled: June 7, 2019Date of Patent: November 9, 2021Assignees: YAZAKI CORPORATION, NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGYInventors: Jun Toyoizumi, Yoshitaka Ito, Takaya Kondo, Yasuhiro Fukuyama, Nobuhisa Kaneko
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Patent number: 10982345Abstract: After drying the surface of a tin plating layer having a thickness of 0.4 to 3 ?m which is formed on a base material of copper or a copper alloy by electroplating at a current density of 5 to 13 A/dm2 in a tin plating solution consisting of water, tin sulfate, sulfuric acid and a surfactant, the surface of the tin plating layer is heated to melt tin, and then, cooled to cause a layer of the tin plating layer on the side of the outermost surface to be a tin layer, which has a structure obtained by solidification after melting, while causing a layer of the tin plating layer between the tin layer and the base material to be a copper-tin alloy layer, to produce a tin-plated product wherein a tin layer, which has a structure obtained by solidification after melting, is formed on a copper-tin alloy layer formed on a base material of copper or a copper alloy and wherein the tin-plated product has a glossiness of 0.3 to 0.7.Type: GrantFiled: April 18, 2017Date of Patent: April 20, 2021Assignees: Dowa Metaltech Co., Ltd., Yazaki CorporationInventors: Hirotaka Kotani, Hiroto Narieda, Akira Sugawara, Yuta Sonoda, Yoshitaka Ito
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Publication number: 20200225300Abstract: A magnetic field generator includes a refrigerating machine, a cold head, a superconductor which is formed in a cylindrical shape, a cold head extension portion which extends from the cold head and is brought into thermal contact with the superconductor at its extended end; and a vacuum heat insulating container having an internal space in which the cold head, the cold head extension portion, and the superconductor are received. The superconductor has a room temperature bore space, which is formed on its inner peripheral side along an axial direction of the superconductor, and is spatially isolated from the internal space of the vacuum heat insulating container. The room temperature bore space has both ends communicating to an outside of the magnetic field generator.Type: ApplicationFiled: January 9, 2020Publication date: July 16, 2020Applicants: AISIN SEIKI KABUSHIKI KAISHA, JEOL Ltd.Inventors: Yosuke Yanagi, Yoshitaka Ito, Takashi Nakamura, Hiroaki Utsumi
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Publication number: 20200130614Abstract: A deterioration regeneration system includes a pre-post regeneration determination part configured to determine whether or not to execute, with respect to an electric contact to which an electrical or mechanical first external action is applied during an operation of a later-stage device, a deterioration regeneration process of regenerating a connection performance that has been deteriorated due to an increase in a contact resistance of the electric contact, and a deterioration regeneration part configured to execute a process of removing a foreign object present at the electric contact by applying a second external action to the electric contact, as the deterioration regeneration process, according to the determined result from the pre-post regeneration determination part, the second external action being of the same kind as the first external action and larger than the first external action.Type: ApplicationFiled: October 1, 2019Publication date: April 30, 2020Applicant: Yazaki CorporationInventors: Jun Toyoizumi, Kenzo Tanaka, Yoshitaka Ito
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Patent number: 10557204Abstract: A plated material includes a base metal made from Cu or an alloy containing Cu as a main raw material, an underlayer made from Ni formed on the base metal, and an Ag plated layer formed on the underlayer. A thickness of the underlayer is 0.1 ?m to 1.0 ?m. A thickness of the Ag plated layer is 1.0 ?m or less.Type: GrantFiled: April 26, 2017Date of Patent: February 11, 2020Assignee: YAZAKI CORPORATIONInventor: Yoshitaka Ito
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Publication number: 20200003814Abstract: A deterioration degree diagnosis device includes a measurement unit and a diagnosis unit. The measurement unit measures an impedance related to a contact resistance of an electrical connection portion by measuring an AC voltage between metal members and an AC current flowing between the metal members in a state where an AC signal of a predetermined frequency is applied to an electric circuit that connects two metal members in contact via the electrical connection portion. The diagnosis unit diagnoses a deterioration degree of the electrical connection portion based on a reactance component value in the impedance measured by the measurement unit.Type: ApplicationFiled: June 7, 2019Publication date: January 2, 2020Applicants: Yazaki Corporation, NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGYInventors: Jun TOYOIZUMI, Yoshitaka ITO, Takaya KONDO, Yasuhiro FUKUYAMA, Nobuhisa KANEKO
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Patent number: 10446943Abstract: A crimping terminal comprises: a conductor crimping portion including a bottom plate and a pair of conductor crimping tabs, the conductor crimping tabs being extending from both sides of the bottom plate in a widthwise direction perpendicular to a lengthwise direction of the crimping terminal and being configured to crimp a conductor of an electrical cable so as to wrap the conductor, the conductor being formed by a bundle of wires and serving as a crimping subject disposed on the bottom plate along the lengthwise direction, the inner surface of the conductor crimping portion being provided with serrations including a plurality of uniformly cylindrical recesses with a diameter smaller than the diameter of the wire of the conductor, and wherein, in the plurality of recesses, the adjacent recesses deviated from each other in the widthwise direction of the crimping terminal partly overlap each other when seen from the lengthwise direction.Type: GrantFiled: February 1, 2012Date of Patent: October 15, 2019Assignee: YAZAKI CORPORATIONInventors: Takaya Kondou, Masanori Onuma, Yoshitaka Ito