Patents by Inventor Masashi Yamaguchi
Masashi 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: 20240150600Abstract: A problem to be solved by the present invention is to provide an ink which can be mainly used for ink jet printing and which can produce a printed matter having excellent abrasion resistance and high color development even when the drying time after printing is short. The present invention relates to an ink including a polymer (A) having a carboxyl group and a structure derived from styrenesulfonic acid represented by general formula (1) below, and a polymer (B) different from the polymer (A) and dispersed in water (C) by the polymer (A).Type: ApplicationFiled: October 1, 2020Publication date: May 9, 2024Applicant: DIC CorporationInventors: Masashi Yamaguchi, Kumiko Iizasa
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Publication number: 20240142479Abstract: Provided are: a connection device with which it is possible to improve the degree of freedom in positioning of an analysis device that analyzes a specimen; and an automated system for inspecting a specimen, the system comprising the connection device.Type: ApplicationFiled: October 21, 2020Publication date: May 2, 2024Inventors: Shigeki YAMAGUCHI, Masashi ENDO, Taichiro YAMASHITA
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Patent number: 11971675Abstract: An image forming apparatus includes image bearers, motors, a reference position detector, and processing circuitry. The circuitry senses a density of a toner image on each bearer; forms an image pattern and senses, based on a detection result of the detector and a sensing result of the density, density unevenness in a rotation cycle and a phase of the density unevenness with respect to a rotational position reference of each bearer; calculates a target phase based on the phase sensed; calculates a relative phase difference based on a rotational position and the target phase of each bearer; selects, as a reference image bearer, an image bearer having a minimum phase correction value, based on a calculation result of the difference; and controls the rotational position of each of the other image bearers with respect to the reference image bearer to the phase correction value, with the motors being driven.Type: GrantFiled: November 29, 2022Date of Patent: April 30, 2024Assignee: Ricoh Company, Ltd.Inventors: Masashi Kasamai, Koji Kiryu, Masahiro Ashikawa, Jumpei Yamaguchi, Kanji Ubukata, Nagisa Nakamura
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Publication number: 20240085627Abstract: An optical circuit to be manufactured on a wafer has a problem that characteristics are distributed (biased) in a wafer plane due to various causes in manufacturing. The present invention is characterized in that refractive index distribution of an upper cladding is adjusted on the basis of refractive index distribution of a lower cladding and a core film, a film thickness of the core film, and in-plane distribution such as an execution refractive index of an optical waveguide (calculated from a width of a core pattern).Type: ApplicationFiled: February 26, 2021Publication date: March 14, 2024Inventors: Kenya Suzuki, Keita Yamaguchi, Ai Yanagihara, Masashi Ota
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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: 20230349016Abstract: The object of the present invention is to provide a melting/refining furnace for cold iron sources and an operation method for a melting/refining furnace that can increase the heating efficiency of the raw material without causing oxidation of the raw material, reduce the amount of power consumption required for melting the raw material, shorten the melting and refining time, improve the productivity, and reduce costs, and the present invention provides a melting/refining furnace including: one or more through-holes (21) provided to penetrate a furnace wall (2A) of an electric furnace (2); and an oxygen burner-lance (3) provided in the through-hole (21), wherein the oxygen burner-lance (3) includes at least one combustion-supporting gas supply pipe (31) and at least one fuel gas supply pipe (32) which have an opening communicating with an inside of the electric furnace (2), and wherein a high-temperature gas generator (10) is provided in any one or more of the combustion-supporting gas supply pipes (31).Type: ApplicationFiled: April 14, 2021Publication date: November 2, 2023Inventors: Masashi YAMAGUCHI, Yasuyuki YAMAMOTO, Yoshiyuki HAGIHARA
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Publication number: 20230123779Abstract: A document receiving apparatus comprises a receiving port configured to receive a document into an apparatus main body, a document stopper configured to be pivotable between a first posture in which reception of the document is suppressed and a second posture in which the reception is permitted, a holding portion configured to hold the document stopper in the first posture, and a biasing portion configured to bias the document stopper held in the first posture to be set in the second postureType: ApplicationFiled: August 30, 2022Publication date: April 20, 2023Inventors: Asako Murase, Masashi Yamaguchi, Shigeru Ikezaki
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Publication number: 20230067135Abstract: A wireless electrical power supply apparatus 100 includes a first electrical power supply unit 101, a second electrical power supply unit 104, voltage control circuits 113 and 123 configured to control a first voltage difference between a first input voltage E1 and a first output voltage E2 during forward power transmission and a second voltage difference between a second input voltage E2 and a second output voltage E1 during reverse power transmission, a second switching control circuit 121, 122 configured to turn off a second transistor Q2 during the forward power transmission and thereby cause a second diode D2 to perform rectification, and a first switching control circuit 111, 112 configured to turn off a first transistor Q1 during the reverse power transmission and thereby cause a first diode D1 to perform rectification.Type: ApplicationFiled: November 9, 2022Publication date: March 2, 2023Applicants: Nichicon Corporation, JOSHO GAKUEN EDUCATIONAL FOUNDATIONInventors: Hideki OMORI, Masahito TSUNO, Masashi YAMAGUCHI
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Patent number: 11541690Abstract: At a run-flat tire, given that an average radius of curvature of a case line between an intersection point (0.1SHp) and an intersection point (0.2SHp) when viewed in a cross-section along a tire rotation axis is radius R1, and that an average radius of curvature of the case line between an intersection point (0.4SHp) and an intersection point (0.6SHp) when viewed in the cross-section along the tire rotation axis is radius R2, ratio R2/R1 is set to be greater than 0.3.Type: GrantFiled: June 17, 2019Date of Patent: January 3, 2023Assignee: BRIDGESTONE CORPORATIONInventors: Masashi Yamaguchi, Keita Yumii
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Publication number: 20220412443Abstract: A gear of a speed reducer of an actuator includes: an insert component; a center portion; an outer peripheral portion; a connecting portion; a gate mark; a weld-line portion; and a rib-shaped portion. The center portion surrounds the insert component. The outer peripheral portion includes a toothed portion and a toothless portion. The weld-line portion is formed in at least one of the center portion, the connecting portion and the outer peripheral portion at a location which is on a radially inner side of the toothless portion. The rib-shaped portion is formed in at least one of the center portion, the connecting portion and the outer peripheral portion at a location which includes the weld-line portion. The rib-shaped portion has a wall thickness that is larger than a wall thickness of another circumferential portion.Type: ApplicationFiled: August 30, 2022Publication date: December 29, 2022Inventors: Naoaki KOUNO, Tetsuji YAMANAKA, Masashi YAMAGUCHI
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Publication number: 20220403772Abstract: An actuator includes an electric motor, an output shaft and a speed reducer. The speed reducer includes at least one metal gear which has a plurality of teeth made of metal. The speed reducer is configured to transmit rotation, which is outputted from the electric motor, to the output shaft after reducing a rotational speed of the rotation. The actuator includes a housing that receives the electric motor and the speed reducer. The actuator includes a plate member that is configured to limit scattering of a scattering object, which is generated in response to an operation of the speed reducer and is scattered from the at least one metal gear.Type: ApplicationFiled: August 23, 2022Publication date: December 22, 2022Inventors: Tomoyuki ISHIDUKA, Tetsuji YAMANAKA, Masashi YAMAGUCHI, Naoaki KOUNO
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Patent number: 11527915Abstract: A wireless electrical power supply apparatus 100 includes a first electrical power supply unit 101, a second electrical power supply unit 104, voltage control circuits 113 and 123 configured to control a first voltage difference between a first input voltage E1 and a first output voltage E2 during forward power transmission and a second voltage difference between a second input voltage E2 and a second output voltage E1 during reverse power transmission, a second switching control circuit 121, 122 configured to turn off a second transistor Q2 during the forward power transmission and thereby cause a second diode D2 to perform rectification, and a first switching control circuit 111, 112 configured to turn off a first transistor Q1 during the reverse power transmission and thereby cause a first diode D1 to perform rectification.Type: GrantFiled: November 1, 2019Date of Patent: December 13, 2022Assignees: Nichicon Corporation, Josho Gakuen Educational FoundationInventors: Hideki Omori, Masahito Tsuno, Masashi Yamaguchi
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Publication number: 20220341666Abstract: One object of the present invention is to provide a burner for producing inorganic spheroidized particles which can efficiently melt and spheroidize even organic powder with a large particle size distribution.Type: ApplicationFiled: September 11, 2020Publication date: October 27, 2022Inventors: Yasuyuki YAMAMOTO, Yoshiyuki HAGIHARA, Masashi YAMAGUCHI
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Publication number: 20220341589Abstract: The object of the present invention is to provide a high-temperature oxygen generation device and a high-temperature oxygen generation method which can efficiently supply preheated high-temperature oxygen gas regardless of pressure conditions from normal pressure to high pressure, without requiring upsizing or expansion of the equipment, and the present invention provides a high-temperature oxygen generation device (10) in which a high-temperature gas (G4) and an oxygen gas (G3) to be heated are mixed to generate a high-temperature oxygen gas (G5), wherein the high-temperature oxygen generation device (10) includes a burner (1) which generates the high-temperature gas (G4), and a preheating chamber (7) which is provided on the downstream side of the burner (1) and mixes the high-temperature gas (G4) and the oxygen gas (G3) to be heated, and the burner (1) includes a combustion chamber (5) which forms a flame by a fuel gas (G1) and an oxygen gas (G2) for combustion, a fuel flow path (2) which supplies the fuelType: ApplicationFiled: September 11, 2020Publication date: October 27, 2022Inventors: Masashi YAMAGUCHI, Yasuyuki YAMAMOTO, Yoshiyuki HAGIHARA
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Patent number: 11378175Abstract: An actuator includes an electric motor, an output shaft and a speed reducer. The speed reducer is configured to transmit rotation, which is outputted from the motor, to the output shaft after reducing a speed of the rotation outputted from the motor. The speed reducer includes an output gear joined to the output shaft and a compound gear. The compound gear includes a large diameter gear, which has a plurality of large gear teeth, and a small diameter gear, which has a plurality of small gear teeth. One of the large diameter gear and the small diameter gear is a metal gear, which is made of a metal member, while another one of the large diameter gear and the small diameter gear is a resin gear, which is made of a resin member, and the resin gear is integrally molded together with the metal gear in one piece.Type: GrantFiled: January 7, 2020Date of Patent: July 5, 2022Assignee: DENSO CORPORATIONInventors: Masashi Yamaguchi, Etsugo Yanagida, Tetsuji Yamanaka, Atsushi Tanaka, Naoaki Kono, Kunio Namba
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Patent number: 11333353Abstract: The object of the present invention is to provide a burner which is capable of decreasing the amount of NOx emission and heating the object to be heated uniformly with excellent heat transfer efficiency when heating the object to be heated while oscillating the flame by self-induced oscillation, and a method for heating using a burner, and the present invention provides a burner including a center fluid ejection outlet 2 having a sectional fan shape in which an interval between a pair of side walls 63a and 63b gradually expands toward a downstream side, a pair of openings 62a and 62b provided on side walls 61 of a fluid ejection flow path 6 on an upstream side of the central fluid ejection port 2 and communicated by a communication pipe 7, a first peripheral fluid ejection outlet arranged around the center fluid ejection outlet, a second peripheral fluid ejection outlet is arranged at a position at which a distance between a center thereof and a center of the center fluid ejection outlet is larger than a distType: GrantFiled: July 10, 2018Date of Patent: May 17, 2022Assignee: TAIYO NIPPON SANSO CORPORATIONInventors: Takeshi Saito, Yasuyuki Yamamoto, Masashi Yamaguchi, Yoshiyuki Hagihara, Naoki Seino
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Patent number: 11262006Abstract: A piping joint connects a resin tube to a connection pipe having a protrusion formed on an outer peripheral surface of a distal end portion of the connection pipe. The piping joint includes a housing press-fitted into the resin tube and an elastically extendable and contractible seal member into which the connection pipe is inserted such that sealing is performed between the connection pipe and the seal member. The housing has a first housing portion positioned in one end portion and having an outer peripheral surface side press-fitted into the resin tube and a second housing portion positioned in the other end portion. The seal member has a first seal portion inserted on an inner peripheral surface side of the second housing portion.Type: GrantFiled: February 7, 2018Date of Patent: March 1, 2022Inventors: Fuminori Oba, Ukyo Kamazuka, Junjie Shen, Masashi Yamaguchi
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Publication number: 20220037926Abstract: A wireless electrical power supply apparatus 100 includes a first electrical power supply unit 101, a second electrical power supply unit 104, voltage control circuits 113 and 123 configured to control a first voltage difference between a first input voltage E1 and a first output voltage E2 during forward power transmission and a second voltage difference between a second input voltage E2 and a second output voltage E1 during reverse power transmission, a second switching control circuit 121, 122 configured to turn off a second transistor Q2 during the forward power transmission and thereby cause a second diode D2 to perform rectification, and a first switching control circuit 111, 112 configured to turn off a first transistor Q1 during the reverse power transmission and thereby cause a first diode D1 to perform rectification.Type: ApplicationFiled: November 1, 2019Publication date: February 3, 2022Applicants: Nichicon Corporation, JOSHO GAKUEN EDUCATIONAL FOUNDATIONInventors: Hideki OMORI, Masahito TSUNO, Masashi YAMAGUCHI
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Publication number: 20210252913Abstract: At a run-flat tire, given that an average radius of curvature of a case line between an intersection point (0.1 SHp) and an intersection point (0.2 SHp) when viewed in a cross-section along a tire rotation axis is radius R1, and that an average radius of curvature of the case line between an intersection point (0.4 SHp) and an intersection point (0.6 SHp) when viewed in the cross-section along the tire rotation axis is radius R2, ratio R2/R1 is set to be greater than 0.3.Type: ApplicationFiled: June 17, 2019Publication date: August 19, 2021Inventors: Masashi YAMAGUCHI, Keita YUMII
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Publication number: 20210222018Abstract: A problem to be solved by the present invention is to provide an ink capable of producing a printed matter having excellent abrasion resistance even in the case of a very short drying time after printing and having high color development in the case of printing on plain paper. The inventors solved the problem by an ink containing a wax, a pigment, a pigment dispersing resin, an aqueous medium, and if required, a binder resin, wherein the content of the wax is within a range of 0.5% by mass to 2% by mass relative to the total amount of the ink and the content of the binder resin is 0% by mass to 2% by mass relative to the total amount of the ink.Type: ApplicationFiled: June 4, 2019Publication date: July 22, 2021Applicant: DIC CorporationInventors: Sumitra Cheawchan, Kouhei Hayakawa, Masashi Yamaguchi