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: 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
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Patent number: 11028789Abstract: An output gear includes a fixing portion, which is joined to a surface-processed portion of an output shaft, and a connecting portion that connects between a toothed portion of the output gear and the fixing portion. A length, which is measured from a center of a boundary surface between the connecting portion and the fixing portion in an axial direction of an axis of the output shaft to one end part of a joint between the surface-processed portion and the fixing portion on a linkage mechanism side along the joint, is indicated by L1. A length, which is measured from the center of the boundary surface to an opposite end part of the joint that is opposite to the linkage mechanism in the axial direction, is indicated by L2. A relationship of L1>L2 is satisfied.Type: GrantFiled: January 7, 2020Date of Patent: June 8, 2021Assignee: DENSO CORPORATIONInventors: Daisuke Hokuto, Tetsuji Yamanaka, Kunio Namba, Atsushi Tanaka, Etsugo Yanagida, Naoaki Kono, Masashi Yamaguchi
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Publication number: 20210166960Abstract: A jig includes a base, light sources disposed on the base, the sources configured to emit light of different wavelengths, a controller disposed on the base, the controller being configured to cause the light sources to be turned on or off based on a given program, and a power source disposed on the base, the power source being configured to supply power to the light sources and the controller. The jig has a shape enabling a transfer device to transfer the jig, the transfer device being provided in a vacuum transfer module and configured to transfer a substrate.Type: ApplicationFiled: November 27, 2020Publication date: June 3, 2021Inventors: Kippei SUGITA, Masaaki MIYAGAWA, Masashi YAMAGUCHI
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Patent number: 10989124Abstract: An actuator is configured to drive a boost pressure control valve of a supercharger. The actuator includes: an electric motor; an output shaft; and a speed reducer that is configured to transmit rotation, which is outputted from the electric motor, to the output shaft after reducing a speed of the rotation outputted from the electric motor. The speed reducer has a plurality of gears that include an output gear joined to the output shaft. The plurality of gears further includes a metal gear and a resin gear of a compound gear, which are respectively formed as a large diameter gear and a small diameter gear and are integrated together in one piece. The output gear is a resin gear.Type: GrantFiled: January 7, 2020Date of Patent: April 27, 2021Assignee: DENSO CORPORATIONInventors: Masashi Yamaguchi, Etsugo Yanagida, Naoaki Kono, Tetsuji Yamanaka, Atsushi Tanaka, Kunio Namba
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Patent number: 10932961Abstract: An absorbent article has a length direction, a width direction and a thickness direction, and is provided at least with an absorbent body including water-absorbent fibers. The absorbent body includes deformation-guiding portions which extend in a predetermined direction, and base portions provided on both sides of each deformation-guiding portion. The deformation-guiding portions are provided with compressed regions which extend in said predetermined direction and in which the absorbent body has been compacted in the thickness direction, and protruding portions which extend in the predetermined direction on both sides of each compressed region and which protrude from the base portion toward the skin surface. The configuration is such that the fiber density of the protruding portions is less than the fiber density of the base portion.Type: GrantFiled: July 1, 2016Date of Patent: March 2, 2021Assignee: UNICHARM CORPORATIONInventors: Hiroki Goda, Masashi Yamaguchi
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Publication number: 20210040341Abstract: The present invention aims to provide an ink ejection stabilizer that can impart high ejection stability, for example, to an ink such as an ink-jet printing ink. The present invention relates to an ink ejection stabilizer including a polymer (A) that has, in a Kratky plot of a scattering profile determined by a small-angle X-ray scattering method using synchrotron radiation, at least one local minimum in the range where a scattering vector q is 0 nm?1 to 2 nm?1. An aqueous solution of the polymer (A) (polymer (A) concentration: 20 mass %) has a parallel light transmittance of 85% or more.Type: ApplicationFiled: February 7, 2019Publication date: February 11, 2021Applicant: DIC CorporationInventors: Kazunari Kawai, Ryota Hibino, Masashi Yamaguchi
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Patent number: 10895039Abstract: Provided is a process for recovering pulp fiber from used sanitary goods which contain both pulp fiber and a superabsorbent polymer and producing a recycled pulp which contains little ash and which is reusable for sanitary goods. This process comprises: a calcium treatment step for treating used sanitary goods with a water-soluble calcium compound and thereby conducting the dehydration of a superabsorbent polymer contained in the used sanitary goods; a disintegration step for applying a physical force to the used sanitary goods to disintegrate the used sanitary goods into pulp fiber and other materials; a separation step for separating the pulp fiber from a pulp fiber/other materials mixture which has been formed in the disintegration step; a disinfecting step using a disinfectant; and a citric acid treatment step for subjecting the separated pulp fiber to treatment with an aqueous citric acid solution at an acidic pH.Type: GrantFiled: March 14, 2019Date of Patent: January 19, 2021Assignee: UNICHARM CORPORATIONInventors: Masashi Yamaguchi, Takayoshi Konishi
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Patent number: 10889318Abstract: A steering device includes a rolling-element bearing that rotationally supports a rotating member in a housing. The rolling-element bearing includes an inner ring, an outer ring, first rolling elements, and second rolling elements. The first rolling elements and second rolling elements are disposed in parallel in the axial direction between the inner ring and the outer ring. The inner ring includes a first split race having a first inner peripheral track surface and a second split race having a second inner peripheral track surface. The steering device further includes a fixing structure configured to fix the rolling-element bearing to the outer periphery of the rotating member in a state where a load is applied to the first split race, the first rolling element, the outer ring, the second rolling element, and the second split race.Type: GrantFiled: October 29, 2018Date of Patent: January 12, 2021Assignee: JTEKT CORPORATIONInventors: Yoshio Kondo, Masashi Yamaguchi
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Patent number: 10851720Abstract: An actuator is provided for driving a turbocharging pressure control valve of a turbocharger. The actuator comprises a motor, an output shaft and a speed reduction mechanism for transmitting rotation of the motor to the output shaft by reducing a rotation speed. The speed reduction mechanism includes at least one gear having a shaft hole, a support shaft inserted into the shaft hole and holding the gear rotatably, and wall portions provided at both ends of the support shaft in a manner sandwiching the gear. The speed reduction mechanism further includes a wear powder holding portion provided radially outside an outer periphery of the support shaft and in at least one of two end portions of the shaft hole and the wall portions in a manner to hold wear powder or foreign substance without scattering.Type: GrantFiled: January 7, 2020Date of Patent: December 1, 2020Assignee: DENSO CORPORATIONInventors: Naoaki Kono, Etsugo Yanagida, Masashi Yamaguchi, Tetsuji Yamanaka, Atsushi Tanaka, Kunio Namba
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Patent number: 10850764Abstract: In a ball screw device, an inner peripheral rolling groove of a nut includes, between openings of mounting holes, a constant pitch circle diameter region where a pitch circle diameter is constant and gradually-changing pitch circle diameter regions where the pitch circle diameter gradually increases, in the ranges from opposite ends of the constant pitch circle diameter region to the respective openings. At least the constant pitch circle diameter region has a surface hardness greater than or equal to a predetermined value, among the constant pitch circle diameter region and the gradually-changing pitch circle diameter regions excluding edges at the boundaries between the respective openings and the inner peripheral rolling groove, and the edges at the boundaries between the respective openings and the inner peripheral rolling groove have a surface hardness less than the predetermined value.Type: GrantFiled: August 21, 2018Date of Patent: December 1, 2020Assignee: JTEKT CORPORATIONInventor: Masashi Yamaguchi
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Publication number: 20200363059Abstract: An object of the present invention is to provide an oxygen-enriched burner which can change any oscillation period and uniformly heat an object to be heated with an excellent heat transfer efficiency when heating the object to be heated while moving the flame with self-induced oscillation, and a method for heating using an oxygen enriched burner, and the present invention provides an oxygen-enriched burner including a center fluid ejection outlet and a peripheral fluid ejection outlet provided around the center fluid ejection outlet, a pair of openings are provided at opposite positions on side walls of a fluid ejection flow path of the center fluid ejection outlet, a pair of the openings are communicated with each other by a communication portion, an interval between a pair of side walls downstream of the openings in the fluid ejection flow path is gradually expanded toward the downstream side, and the communication portion includes a first communication pipe and the second communication pipe each having a fType: ApplicationFiled: July 26, 2018Publication date: November 19, 2020Inventors: Takeshi SAITO, Yasuyuki YAMAMOTO, Masashi YAMAGUCHI, Yoshiyuki HAGIHARA, Naoki SEINO
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Patent number: 10815091Abstract: An apparatus includes a housing provided with a conveyance path, a conveyance unit which conveys a sheet along the conveyance path, a discharge port from which the sheet conveyed along the conveyance path is discharged, a discharge tray on which the sheet discharged from the discharge port is stacked, and an attitude change unit which changes an attitude of the discharge tray. The discharge tray includes a first sheet receiving surface which is a portion facing the discharge port in a discharge direction of the sheet and on which a leading edge of the sheet lands, and a second sheet receiving surface which is formed at a predetermined inclination with respect to the first sheet receiving surface. The attitude change unit changes the attitude of the discharge tray so that the first sheet receiving surface of the discharge tray is inclined toward the discharge port.Type: GrantFiled: April 11, 2019Date of Patent: October 27, 2020Assignee: Canon Denshi Kabushiki KaishaInventors: Sadayuki Kaneko, Misato Nakayama, Asako Chiba, Ayumi Machida, Tetsurou Ishikawa, Yoshinori Kanaya, Yoshihiro Taniike, Masashi Yamaguchi
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Publication number: 20200248846Abstract: 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: ApplicationFiled: February 7, 2018Publication date: August 6, 2020Inventors: Fuminori OBA, Ukyo KAMAZUKA, Junjie SHEN, Masashi YAMAGUCHI
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Patent number: 10730545Abstract: A rack housing and a reduction drive housing accommodate a ball screw mechanism and a reduction drive. Within the rack housing and the reduction drive housing, a gap is provided between the left end of a nut and the rack housing, and a gap is provided between the right end of the nut and the rack housing. A groove serving as a communication path in communication with the gaps on both axial sides of the nut is provided in the outer circumferential surface of the nut. The groove is provided so as to avoid a recirculation path provided in the nut. The groove is provided axially and rectilinearly from the end of the nut that is located on the side opposite to a flange, to the flange and is provided along the flange.Type: GrantFiled: November 27, 2015Date of Patent: August 4, 2020Assignee: JTEKT CORPORATIONInventors: Tetsuya Kaneko, Masayoshi Asakura, Satoshi Fujita, Ryuji Shibata, Masashi Yamaguchi
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Publication number: 20200232401Abstract: An actuator drives a boost pressure control valve of a supercharger of an engine and includes an electric motor, an output shaft, a speed reducer, a rotational angle sensor and a housing. The speed reducer includes three pairs of metal gears and is configured to reduce a speed of rotation outputted from the electric motor and transmit the rotation to the output shaft. The rotational angle sensor includes a magnetic circuit device and a sensing device and senses a rotational angle of the output shaft. The housing receives the metal gears and the magnetic circuit device in a common space and supports the output shaft. In an installed state of the actuator where the actuator is installed to the engine, a meshing portion of the metal gears is located on a lower side of a magnetic circuit lowest point in the gravity direction.Type: ApplicationFiled: April 7, 2020Publication date: July 23, 2020Inventors: Masashi YAMAGUCHI, Tetsuji YAMANAKA, Kunio NAMBA, Naoaki KONO, Atsushi TANAKA
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Publication number: 20200217256Abstract: An output gear includes a fixing portion, which is joined to a surface-processed portion of an output shaft, and a connecting portion that connects between a toothed portion of the output gear and the fixing portion. A length, which is measured from a center of a boundary surface between the connecting portion and the fixing portion in an axial direction of an axis of the output shaft to one end part of a joint between the surface-processed portion and the fixing portion on a linkage mechanism side along the joint, is indicated by L1. A length, which is measured from the center of the boundary surface to an opposite end part of the joint that is opposite to the linkage mechanism in the axial direction, is indicated by L2. A relationship of L1>L2 is satisfied.Type: ApplicationFiled: January 7, 2020Publication date: July 9, 2020Inventors: Daisuke HOKUTO, Tetsuji YAMANAKA, Kunio NAMBA, Atsushi TANAKA, Etsugo YANAGIDA, Naoaki KONO, Masashi YAMAGUCHI
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Publication number: 20200217254Abstract: An actuator is provided for driving a turbocharging pressure control valve of a turbocharger. The actuator comprises a motor, an output shaft and a speed reduction mechanism for transmitting rotation of the motor to the output shaft by reducing a rotation speed. The speed reduction mechanism includes at least one gear having a shaft hole, a support shaft inserted into the shaft hole and holding the gear rotatably, and wall portions provided at both ends of the support shaft in a manner sandwiching the gear. The speed reduction mechanism further includes a wear powder holding portion provided radially outside an outer periphery of the support shaft and in at least one of two end portions of the shaft hole and the wall portions in a manner to hold wear powder or foreign substance without scattering.Type: ApplicationFiled: January 7, 2020Publication date: July 9, 2020Inventors: Naoaki KONO, Etsugo YANAGIDA, Masashi YAMAGUCHI, Tetsuji YAMANAKA, Atsushi TANAKA, Kunio NAMBA
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Publication number: 20200217255Abstract: An actuator is configured to drive a boost pressure control valve of a supercharger. The actuator includes: an electric motor; an output shaft; and a speed reducer that is configured to transmit rotation, which is outputted from the electric motor, to the output shaft after reducing a speed of the rotation outputted from the electric motor. The speed reducer has a plurality of gears that include an output gear joined to the output shaft. The plurality of gears further includes a metal gear and a resin gear of a compound gear, which are respectively formed as a large diameter gear and a small diameter gear and are integrated together in one piece. The output gear is a resin gear.Type: ApplicationFiled: January 7, 2020Publication date: July 9, 2020Inventors: Masashi YAMAGUCHI, Etsugo YANAGIDA, Naoaki KONO, Tetsuji YAMANAKA, Atsushi TANAKA, Kunio NAMBA
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Publication number: 20200217410Abstract: 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: ApplicationFiled: January 7, 2020Publication date: July 9, 2020Inventors: Masashi YAMAGUCHI, Etsugo YANAGIDA, Tetsuji YAMANAKA, Atsushi TANAKA, Naoaki KONO, Kunio NAMBA
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Patent number: 10683031Abstract: A rack-parallel steering system that prevents entry of abrasion powder into a rolling bearing is provided. A steering system includes a steered shaft, a rolling element screw portion, a rolling element nut, and a ball screw device. The steering system includes: a motor including an output shaft offset from the steered shaft; a drive force transfer mechanism including a toothed drive pulley, a toothed driven pulley, and a toothed belt; and a rolling bearing supporting a ball screw nut to be rotatable relative to a housing. A first seal member that contacts an outer ring and an inner ring is provided on a side surface of the rolling bearing on the driven pulley side. A second seal member that does not contact the inner ring is provided on a side surface of the ball bearing on the side opposite to the side surface on the driven pulley side.Type: GrantFiled: October 24, 2017Date of Patent: June 16, 2020Assignee: JTEKT CORPORATIONInventors: Yoshio Kondo, Masashi Yamaguchi