Patents by Inventor Takayuki Yamaguchi
Takayuki Yamaguchi 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: 20240154694Abstract: Provided is a concealment signal generation unit that acquires learning constellation data and identification constellation data output from a signal processing circuit for optical communication, reduces and conceals the number of pieces of data from each of the pieces of constellation data through random projection, and generates a learning concealment signal and an identification concealment signal based on each piece of constellation data after the reduction and concealment of the number of pieces of data. Provided are a sparse dictionary learning unit that learns a concealment sparse dictionary using a sparse dictionary learning algorithm based on the learning concealment signal; and an identification unit that estimates a state of the optical communication using the concealment sparse dictionary based on the identification concealment signal.Type: ApplicationFiled: March 2, 2021Publication date: May 9, 2024Inventors: Takayuki NAKACHI, Yitu WANG, Yasuhiro MOCHIDA, Takahiro YAMAGUCHI, Hideki NISHIZAWA
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Publication number: 20240130659Abstract: A state estimation device includes an information acquisition unit acquiring at least one of (i) electrode acquisition information indicating an electromagnetic time series that is a time series of an electromagnetic quantity that is an electromagnetic force, field, or energy applied to an electrode from which a signal indicating a state of a heart of an estimation target is acquirable or (ii) environment information that is information on a time series of an environmental quantity that is an amount related to one or both of a state of motion of the estimation target and an environment in which the estimation target is present; and an estimation unit using at least one of the electrode acquisition information or the environment information to determine whether an electrode event, which is an abnormality in acquisition of a signal indicating the state of the heart of the estimation target by the electrode, has occurred.Type: ApplicationFiled: March 5, 2021Publication date: April 25, 2024Inventors: Kentaro TANAKA, Shingo TSUKADA, Masumi YAMAGUCHI, Takayuki OGASAWARA, Toichiro GOTO
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Publication number: 20240080001Abstract: An electronic apparatus according to one embodiment, includes: a signal generator generating a first signal and a second signal; a first characteristic circuitry acquiring first and second distorted signals by giving first and second distortion characteristic to the first and second signals; a first time-characteristic circuitry acquiring a third distorted signal by giving a first time-characteristic to the first distorted signal and acquiring a fourth distorted signal by giving a second time-characteristic to the second distorted signal; a second characteristic circuitry acquiring a fifth distorted signal by giving a second distortion characteristic to the third distorted signal, and acquiring a sixth distorted signal by giving the second distortion characteristic to the fourth distorted signal; and a processing circuitry estimating at least one of the first distortion characteristic and the second distortion characteristic based on the first signal, the second signal, the fifth distorted signal, and the sixType: ApplicationFiled: March 7, 2023Publication date: March 7, 2024Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA INFRASTRUCTURE SYSTEMS & SOLUTIONS CORPORATIONInventors: Yoshimasa KIMOTO, Yoshimasa EGASHIRA, Keiichi YAMAGUCHI, Takayuki KATO
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Patent number: 11923897Abstract: The present disclosure has an object of proposing a method and a device for estimating the state of a transmission path or an optical transmitter capable of mechanically estimating a factor causing an error with a small amount of constellation data and a low computing amount.Type: GrantFiled: December 11, 2019Date of Patent: March 5, 2024Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Takayuki Nakachi, Yitu Wang, Tetsuro Inui, Takafumi Tanaka, Takahiro Yamaguchi, Katsuhiro Shimano
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Publication number: 20240066776Abstract: A material discharge device includes: a drive motor; a screw having a groove formation surface and configured to rotate; a barrel having a facing surface and formed with a communication hole through which a plasticized material flows; a heating unit configured to heat the material; a nozzle from which the material is injected to an outside; and a plurality of measurement units configured to measure a pressure or a temperature of the material. The measurement units are disposed at an outer periphery of a nozzle channel wall, and a thickness of the nozzle channel wall satisfies the following (1) or (2): (1) when the nozzle channel wall is made of a material containing iron as a main component, the thickness of the nozzle channel wall is 0.2 mm or more and 2.5 mm or less; and (2) when the nozzle channel wall is made of a material containing aluminum as a main component, the thickness of the nozzle channel wall is 0.2 mm or more and 4 mm or less.Type: ApplicationFiled: August 28, 2023Publication date: February 29, 2024Inventors: Masashi FUCHII, Takayuki SASAKI, Kenta ANEGAWA, Masayuki TAKAHASHI, Hidenobu MARUYAMA, Juri YAMAGUCHI
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Publication number: 20240042735Abstract: Provided is a liquid (e.g., ink) storage member for coating tools to reduce the consumption of plastic and the environmental impact by substituting paper base material for plastics such as polypropylene. The liquid storage member has at least three layers as follows: an inner layer made of paper base material and an intermediate layer of a paper base laminate comprising a metal layer or a silica vapor deposition layer formed on the outer surface side of the paper-based inner layer; and an outer layer made of paper base material formed on the outer surface side of the intermediate layer. The paper base laminate is wound into a spiral shape and on the outer surface side of the intermediate layer, the outer layer is also wound into a spiral shape. A polyolefin resin-containing adhesive layer lies in between the inner and intermediate layers and/or between the intermediate and outer layers.Type: ApplicationFiled: December 17, 2021Publication date: February 8, 2024Applicant: MITSUBISHI PENCIL COMPANY, LIMITEDInventors: Saki TANAKA, Takayuki YAMAGUCHI, Yuichi INAGAWA
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Publication number: 20240035187Abstract: Provided is an aluminum member including: a substrate formed of aluminum or an aluminum alloy. The aluminum member includes an anodic oxide coating that includes a barrier layer in contact with a surface of the substrate, a first porous layer in contact with a surface of the barrier layer on an opposite side to the substrate, and a second porous layer in contact with a surface of the first porous layer on an opposite side to the barrier layer and including multiple pores aligned and linearly extending from a surface in contact with the first porous layer toward an exposed surface. The first porous layer includes at least one of: multiple branching pores; or multiple pores having an average pore diameter larger than that of the second porous layer.Type: ApplicationFiled: October 14, 2021Publication date: February 1, 2024Applicant: NIPPON LIGHT METAL COMPANY, LTD.Inventors: Takayuki YAMAGUCHI, Yoshihiro TAGUCHI
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Patent number: 11864355Abstract: A thermal conductor includes a plurality of thermal conducting portions; and joint portions made of a material having flexibility and configured to join the respective thermal conducting portions with each other, having voids where neither the thermal conducting portion nor the joint portion is present, and satisfying a condition of 0.5?[(S1?S0)/S0]×100?20 when an area of the thermal conductor in a planar view in a first direction is expressed by S0 [cm2] and an area of the thermal conductor in the planar view in the first direction in a pressed state that the thermal conductor is pressed by 0.2 MPa in the first direction is expressed by S1 [cm2]. Accordingly, the thermal conductor satisfies both ensuring adhesiveness to a member in contact with the thermal conductor in use and suppressing excessive deformation of the thermal conductor in a compressed state.Type: GrantFiled: May 28, 2021Date of Patent: January 2, 2024Assignee: SHOWA MARUTSUTSU COMPANY, LTD.Inventors: Katsuhiko Kagawa, Takayuki Yamaguchi
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Publication number: 20230328929Abstract: A thermal conductor includes a plurality of thermal conducting portions; and joint portions made of a material having flexibility and configured to join the respective thermal conducting portions with each other, having voids where neither the thermal conducting portion nor the joint portion is present, and satisfying a condition of 0.5 ? [(S1 -S0)/ S0] x 100 ? 20 when an area of the thermal conductor in a planar view in a first direction is expressed by SO [cm2] and an area of the thermal conductor in the planar view in the first direction in a pressed state that the thermal conductor is pressed by 0.2 MPa in the first direction is expressed by S1 [cm2]. Accordingly, the thermal conductor satisfies both ensuring adhesiveness to a member in contact with the thermal conductor in use and suppressing excessive deformation of the thermal conductor in a compressed state.Type: ApplicationFiled: May 28, 2021Publication date: October 12, 2023Applicant: SHOWA MARUTSUTSU COMPANY, LTD.Inventors: Katsuhiko KAGAWA, Takayuki YAMAGUCHI
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Patent number: 11780258Abstract: Provided is a liquid storage member for coating tools which successfully reduces plastic consumption and reduces environmental loads, by making use of materials based on paper in place of plastics such as polypropylene that has been used for liquid (e.g., ink) storage members. A liquid storage member for coating tools having at least three layers of a paper base laminate composed of an inner layer made of paper base material, and a middle layer of a metal layer or a silica deposition layer, formed on the outer peripheral side of the inner layer; and an outer layer made of the paper base material formed on the outer peripheral side of the middle layer, wherein the paper base material of the inner layer has a density of 0.8 g/cm3 or more.Type: GrantFiled: April 10, 2020Date of Patent: October 10, 2023Assignee: MITSUBISHI PENCIL COMPANY, LIMITEDInventors: Shuji Ichikawa, Shinobu Kajiyama, Takeshi Iimori, Takayuki Yamaguchi
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Publication number: 20230176351Abstract: A light source apparatus configured to emit light includes a condenser unit configured to reflect light from a light source and to condense the light on a condensing point, a light shielding unit disposed on an optical path of the light from the condenser unit, and a reflector unit disposed between the condenser unit and the light shielding unit and configured to reflect the light from the condenser unit. The reflector unit is disposed so that reflected light is condensed by the condenser unit toward the condensing point.Type: ApplicationFiled: November 30, 2022Publication date: June 8, 2023Inventor: TAKAYUKI YAMAGUCHI
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Publication number: 20220380362Abstract: The present invention relates to a pyrimidine compound or a pharmaceutically acceptable salt thereof represented by the following formula [I] wherein each symbol is as defined in the specification and a method of therapeutically or prophylactically treating an undesirable cell proliferation, comprising administering such a compound. The compound of the present invention has superior activity in suppressing undesirable cell proliferation, particularly, an antitumor activity, and is useful as an antitumor agent for the prophylaxis or treatment of cancer, rheumatism, and the like. In addition, the compound of the present invention can be a more effective antitumor agent when used in combination with other antitumor agents such as an alkylating agent or metabolism antagonist.Type: ApplicationFiled: December 8, 2021Publication date: December 1, 2022Applicant: Japan Tobacco Inc.Inventors: Hisashi KAWASAKI, Hiroyuki ABE, Kazuhide HAYAKAWA, Tetsuya IIDA, Shinichi KIKUCHI, Takayuki YAMAGUCHI, Toyomichi NANAYAMA, Hironori KURACHI, Masahiro TAMARU, Yoshikazu HORI, Mitsuru TAKAHASHI, Takayuki YOSHIDA, Toshiyuki SAKAI
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Publication number: 20220355612Abstract: Provided is a liquid storage member for coating tools which successfully reduces plastic consumption and reduces environmental loads, by making use of materials based on paper in place of plastics such as polypropylene that has been used for liquid (e.g., ink) storage members. A liquid storage member for coating tools having at least three layers of a paper base laminate composed of an inner layer made of paper base material, and a middle layer of a metal layer or a silica deposition layer, formed on the outer peripheral side of the inner layer; and an outer layer made of the paper base material formed on the outer peripheral side of the middle layer, wherein the paper base material of the inner layer has a density of 0.8 g/cm3 or more.Type: ApplicationFiled: April 10, 2020Publication date: November 10, 2022Applicant: MITSUBISHI PENCIL COMPANY, LIMITEDInventors: Shuji Ichikawa, Shinobu Kajiyama, Takeshi Iimori, Takayuki Yamaguchi
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Publication number: 20220276011Abstract: A heat conducting sheet has an overall sheet structure with a plurality of heat conducting regions. Each heat conducting region is continuous between the two primary surfaces of the heat conducting sheet, and connecting regions connect adjacent side-walls of the plurality of heat conducting regions stacked laterally between the primary surfaces. The heat conducting regions include vacancies. The connecting regions consist of material that includes flexible resin material and unfilled layers are formed in part of the connecting regions. Some of the resin material can ingress into part of heat conducting region vacancies. This structure can achieve a highly elastic and flexible heat conducting sheet due to vacancies in the heat conducting regions and unfilled layers in the connecting region.Type: ApplicationFiled: June 25, 2020Publication date: September 1, 2022Applicant: SHOWA MARUTSUTSU COMPANY, LTD.Inventors: Eiichi TOYA, Koji MATSUI, Yuya TOYOKAWA, Kazuki SHIBATA, Katsuhiko KAGAWA, Takayuki YAMAGUCHI
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Patent number: 11360381Abstract: Provided are: a support frame for pellicle that has both low dust generation property and high light resistance, and further has an ion elution amount which is reduced to the utmost limit to an extent that haze is not generated even when a short wavelength laser is used for exposure light source, a pellicle using the support frame for pellicle, and a method for efficiently manufacturing the support frame for pellicle, support frame for pellicle which comprises a frame member comprising aluminum or aluminum alloy and an inorganic coating layer formed on the surface of the frame member, wherein the main chain of the inorganic coating layer is constituted by a —Si—O—Si—O— bond. An anodized film is preferably formed between the frame member and the inorganic coating layer.Type: GrantFiled: August 29, 2017Date of Patent: June 14, 2022Assignee: NIPPON LIGHT METAL COMPANY, LTD.Inventor: Takayuki Yamaguchi
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Patent number: 11183329Abstract: An art includes a core part 10 provided with central leg parts 13A, 13B and right and left leg parts 11A, 11B, 12A, 12B arranged on both sides of the central leg parts 13A, 13B; a coil part 20 formed by winding a conducting wire around a circumference of the central leg parts 13A, 13B; and a heat transfer sheet 30 for dissipating heat in the coil part 20 to outside, in which the coil part 20 is configured in such a manner that a rectangular wire is wound around the circumference of the central leg parts by edgewise winding and a circumference of the coil part 20 wound therearound is abutted on the heat transfer sheet 30.Type: GrantFiled: November 28, 2017Date of Patent: November 23, 2021Assignee: SUMIDA CORPORATIONInventors: Takayuki Yamaguchi, Toshio Uchibori
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Patent number: 10948816Abstract: The present invention provides a pellicle frame which can effectively inhibit deformation of an exposure master plate (8) caused by affixing the pellicle (1), and which does not have a complex shape, and a pellicle which uses said pellicle frame are provided. The pellicle frame with an anodized film on a surface of an aluminum alloy frame is characterized in that: the aluminum alloy frame comprises an aluminum alloy which contains Ca: 5.0 to 10.0% by weight with the remainder aluminum and unavoidable impurities are contained, and has an area (volume) ratio of an Al4Ca phase, which is a dispersed phase, is greater than or equal to 25%, and a crystal structure of a part of the Al4Ca phase is monoclinic; wherein the anodized film contains Al4Ca particles.Type: GrantFiled: June 30, 2017Date of Patent: March 16, 2021Assignee: NIPPON LIGHT METAL COMPANY, LTD.Inventors: Yoshihiro Taguchi, Takayuki Yamaguchi, Jun Yu, Yasuo Ishiwata
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Publication number: 20210011371Abstract: Provided are: a support frame for pellicle that has both low dust generation property and high light resistance, and further has an ion elution amount which is reduced to the utmost limit to an extent that haze is not generated even when a short wavelength laser is used for exposure light source, a pellicle using the support frame for pellicle, and a method for efficiently manufacturing the support frame for pellicle, support frame for pellicle which comprises a frame member comprising aluminum or aluminum alloy and an inorganic coating layer formed on the surface of the frame member, wherein the main chain of the inorganic coating layer is constituted by a —Si—O—Si—O— bond. An anodized film is preferably formed between the frame member and the inorganic coating layer.Type: ApplicationFiled: August 29, 2017Publication date: January 14, 2021Inventor: Takayuki YAMAGUCHI
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Patent number: 10858976Abstract: An NH3 supply amount controller reduces and adjusts a supply amount of NH3 to an SCR catalyst by an NH3 supplier, when an exhaust gas flowing into an NOx catalyst has a rich air-fuel ratio and NOx occluded by the NOx catalyst is reduced to N2. A reduction amount of the supply amount of the NH3 controlled by the NH3 supply amount controller is set larger when s flow amount of the exhaust gas detected or estimated by an exhaust-gas flow amount detector is larger.Type: GrantFiled: October 13, 2017Date of Patent: December 8, 2020Assignee: MAZDA MOTOR CORPORATIONInventors: Goro Tsuboi, Takayuki Yamaguchi, Daishi Ikeda, Yoshiaki Tomita, Chikara Ishihara
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Patent number: 10858978Abstract: An NH3 supply amount controller reduces and adjusts a supply amount of NH3 to an SCR catalyst by an NH3 supplier, when an exhaust gas flowing into an NOX catalyst has a rich air-fuel ratio and NOX occluded by the NOX catalyst is reduced to N2. A reduction amount of the supply amount of the NH3 controlled by the NH3 supply amount controller is set larger when an amount of reducing agent detected or estimated by a reducing agent amount detector is larger.Type: GrantFiled: October 13, 2017Date of Patent: December 8, 2020Assignee: MAZDA MOTOR CORPORATIONInventors: Goro Tsuboi, Takayuki Yamaguchi, Daishi Ikeda, Yoshiaki Tomita, Chikara Ishihara