Patents by Inventor Kengo Tanaka
Kengo Tanaka 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: 20240151177Abstract: An opposed-piston engine includes: a cylinder having a scavenging port on one side in an axial direction and an exhaust port on another side in the axial direction, a scavenging-side piston disposed inside the cylinder on the one side in the axial direction, an exhaust-side piston disposed inside the cylinder on the other side in the axial direction; and at least one fuel injection device configured to inject fuel between the scavenging-side piston and the exhaust-side piston inside the cylinder. A top surface of the exhaust-side piston is formed in a flat shape, a top surface of the scavenging-side piston has a scavenging-side cavity with a predetermined cavity volume, and the at least one fuel injection device includes at least one scavenging-side fuel injection device having a central axis inclined to the one side in the axial direction toward an inner side in a radial direction of the cylinder.Type: ApplicationFiled: March 22, 2022Publication date: May 9, 2024Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Shintaro SHUTO, Kengo TANAKA, Keita SUZUKI
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Patent number: 11958922Abstract: The present invention provides vinyl-based resin particles capable of easily smoothing the surface of a thermosetting resin film when the particles are used as a pore-forming material for a thermosetting resin. Specifically, the present invention provides vinyl-based resin particles for use in making a thermosetting resin porous, the particles having a temperature of 230° C. or higher and lower than 300° C. at 10% mass loss when heated at a rate of 10° C./min in an air atmosphere, and the particles having a mass loss percentage of 85 to 100% after being heated at 350° C. for 5 hours in an air atmosphere.Type: GrantFiled: August 28, 2019Date of Patent: April 16, 2024Assignee: SEKISUI PLASTICS CO., LTD.Inventors: Kohei Tanaka, Kengo Nishiumi, Ryosuke Harada
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Publication number: 20240011716Abstract: A vapor chamber which enables to raise the heat transfer coefficient by improving the transport efficiency of the working fluid, and a manufacturing method thereof. A vapor chamber includes a working fluid in a sealed internal space formed by joining a first metal sheet and a second metal sheet, in which in an opposite surface of at least one metal sheet (at least opposite surface 12a in FIGS. 1A and 1B) among opposite surfaces 11a, 12a at which the first metal sheet and the second metal sheet are facing each other, main grooves extending continuously or discontinuously towards one direction (extending direction X of main groove) are formed in line at a predetermined interval, and connection grooves connecting main grooves 21a, 21b which are adjacent are formed at irregular arrangement pitches and irregular grooves widths toward a different direction than the one direction (extending direction X of main groove 21).Type: ApplicationFiled: November 26, 2021Publication date: January 11, 2024Applicant: FURUKAWA ELECTRIC CO., LTD.Inventor: Kengo TANAKA
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Patent number: 11859572Abstract: A fuel injection control device according to an embodiment is a device for controlling fuel injection performed by a fuel injection device disposed in a cylinder of a two-stroke engine, comprising: a scavenging and exhaust gas state quantity acquisition part configured to acquire a parameter related to a state quantity of scavenging and exhaust gas in the cylinder; a swirl momentum calculation part configured to calculate a momentum of swirl generated in the cylinder on the basis of the parameter; and a fuel injection pressure calculation part configured to calculate an injection pressure of fuel from the fuel injection device corresponding to the momentum of swirl calculated by the swirl momentum calculation part.Type: GrantFiled: March 17, 2021Date of Patent: January 2, 2024Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Kengo Tanaka, Takashi Ueda, Yuki Koshiba, Sigetoshi Sugata
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Patent number: 11846047Abstract: Provided are a cloth and a protective product, which allow for any color appearance and have excellent protection performance against electric arcs. The cloth has a woven fabric structure, wherein a front-surface spun yarn containing an infrared absorber- and/or electrically conductive agent-containing fiber and not containing carbon is located on a front surface, while a back-surface spun yarn containing a carbon-containing fiber is located on a back surface, and the cloth has an ATPV value of 8.0 cal/cm2 or more in Arc Resistance Test ASTM F1959-1999.Type: GrantFiled: December 10, 2019Date of Patent: December 19, 2023Assignee: TEIJIN LIMITEDInventors: Kengo Tanaka, Kenji Iwashita, Hiroki Shimada, Atsushi Kitamura
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Publication number: 20230392544Abstract: An opposed-piston engine includes: a cylinder; a one-side piston disposed inside the cylinder on one side in an axial direction; and an other-side piston disposed inside the cylinder on another side in the axial direction. Atop surface of the one-side piston has a one-side cavity recessed in a central portion. A top surface of the other-side piston has an other-side cavity recessed in a central portion. An outer peripheral edge of the one-side cavity is at least 0.1D1 away from an outer peripheral edge of the top surface of the one-side piston over the entire circumference, where D1 is a diameter of the top surface of the one-side piston. An outer peripheral edge of the other-side cavity is at least 0.1D2 away from an outer peripheral edge of the top surface of the other-side piston over the entire circumference, where D2 is a diameter of the top surface of the other-side piston.Type: ApplicationFiled: March 22, 2022Publication date: December 7, 2023Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Keita SUZUKI, Yuki KOSHIBA, Kengo TANAKA, Shintaro SHUTO, Masafumi MORI, Shigetoshi SUGATA, Takashi UEDA
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Patent number: 11795867Abstract: An opposed-piston engine according to an embodiment is a first fuel injection device configured to inject fuel from a circumferential wall surface of at least one cylinder into the cylinder, and a second fuel injection device disposed to be displaced in a circumferential direction so as to be opposite to the first fuel injection device across an axial center of the cylinder. Each of the first fuel injection device and the second fuel injection device includes a plurality of injection holes having different injection directions, in a cross-section orthogonal to the axial direction. A direction directed by a first downstream injection hole is configured to pass through a second injection region, and a direction directed by a second downstream injection hole is configured to pass through a first injection region.Type: GrantFiled: January 27, 2021Date of Patent: October 24, 2023Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Masafumi Mori, Yuuki Koshiba, Kengo Tanaka, Takashi Ueda, Shigetoshi Sugata
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Patent number: 11792965Abstract: An image display device includes a circuit board disposed at a position corresponding to a portion of a back surface of a display panel at a side of a back surface of an inner plate at a side of the back surface of the display panel; and a heat insulating member provided between the circuit board and the inner plate.Type: GrantFiled: December 9, 2021Date of Patent: October 17, 2023Assignee: SHARP KABUSHIKI KAISHAInventor: Kengo Tanaka
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Publication number: 20230258416Abstract: A vapor chamber has a working fluid in an internal space formed between a first metal sheet and a second metal sheet, in which the first metal sheet includes a recessed channel and at least one projecting part. The recessed channel is provided at an inner surface of the first metal sheet; the projecting part projects from the inner surface of the first metal sheet toward the second metal sheet, and a top face of the projecting part abuts the second metal sheet. The vapor chamber includes at least one top face joining part and gap flow channel part, the top face joining part joins part of the top face of the projecting part and the second metal sheet, and the top face and the second metal sheet are separated at the gap flow channel part.Type: ApplicationFiled: June 25, 2021Publication date: August 17, 2023Applicant: FURUKAWA ELECTRIC CO., LTD.Inventor: Kengo TANAKA
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Publication number: 20230215777Abstract: A vapor chamber includes a working fluid in an internal space formed between a first metal sheet and a second metal sheet, in which the first metal sheet includes a recessed channel, at least one projecting part, and at least one flow channel groove. The recessed channel is provided at an inner surface of the first metal sheet, the projecting part projects from the inner surface of the first metal sheet toward an inner surface of the second metal sheet, and a top face of the projecting part abuts the inner surface of the second metal sheet. The flow channel groove has a bottom groove part, a side face groove part and a top face groove part. The bottom groove part is provided at a bottom face of the recessed channel, the side face groove part is provided at a side face of the projecting part, and is connected to the bottom groove part, and the top face groove part is provided at the top face of the projecting part, and is connected to the side face groove part.Type: ApplicationFiled: June 1, 2021Publication date: July 6, 2023Applicant: FURUKAWA ELECTRIC CO., LTD.Inventor: Kengo TANAKA
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Publication number: 20230044405Abstract: A fuel injection control device according to an embodiment is a device for controlling fuel injection performed by a fuel injection device disposed in a cylinder of a two-stroke engine, comprising: a scavenging and exhaust gas state quantity acquisition part configured to acquire a parameter related to a state quantity of scavenging and exhaust gas in the cylinder; a swirl momentum calculation part configured to calculate a momentum of swirl generated in the cylinder on the basis of the parameter; and a fuel injection pressure calculation part configured to calculate an injection pressure of fuel from the fuel injection device corresponding to the momentum of swirl calculated by the swirl momentum calculation part.Type: ApplicationFiled: March 17, 2021Publication date: February 9, 2023Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Kengo TANAKA, Takashi UEDA, Yuki KOSHIBA, Sigetoshi SUGATA
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Publication number: 20230019112Abstract: An engine according to an embodiment includes at least one cylinder, at least one piston disposed in the at least one cylinder, a plurality of fuel injection valves disposed on the at least one cylinder, the plurality of fuel injection valves including a first fuel injection valve having a predetermined total hole area and a second fuel injection valve having a total hole area smaller than the total hole area of the first fuel injection valve, and a control device for controlling the first fuel injection valve and the second fuel injection valve according to a load of the engine.Type: ApplicationFiled: January 27, 2021Publication date: January 19, 2023Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Yuki KOSHIBA, Masafumi MORI, Kengo TANAKA, Takashi UEDA, Shigetoshi SUGATA
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Publication number: 20230014414Abstract: An opposed-piston engine according to an embodiment is a first fuel injection device configured to inject fuel from a circumferential wall surface of at least one cylinder into the cylinder, and a second fuel injection device disposed to be displaced in a circumferential direction so as to be opposite to the first fuel injection device across an axial center of the cylinder. Each of the first fuel injection device and the second fuel injection device includes a plurality of injection holes having different injection directions, in a cross-section orthogonal to the axial direction. A direction directed by a first downstream injection hole is configured to pass through a second injection region, and a direction directed by a second downstream injection hole is configured to pass through a first injection region.Type: ApplicationFiled: January 27, 2021Publication date: January 19, 2023Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Masafumi MORI, Yuuki KOSHIBA, Kengo TANAKA, Takashi UEDA, Shigetoshi SUGATA
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Publication number: 20220408864Abstract: The invention addresses the problem of providing a cloth and a protective product, which are excellent not only in flame retardancy but also in protection performance against electric arcs, and can further be provided with any color appearance. As a means for resolution, in a cloth including a flame-retardant fiber, a UV absorber or carbon particles are contained in the cloth, and the cloth is configured to have a lightness index L-value of 25 or more.Type: ApplicationFiled: October 20, 2020Publication date: December 29, 2022Applicant: TEIJIN LIMITEDInventor: Kengo TANAKA
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Publication number: 20220192061Abstract: An image display device includes a circuit board disposed at a position corresponding to a portion of a back surface of a display panel at a side of a back surface of an inner plate at a side of the back surface of the display panel; and a heat insulating member provided between the circuit board and the inner plate.Type: ApplicationFiled: December 9, 2021Publication date: June 16, 2022Inventor: Kengo TANAKA
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Publication number: 20220010467Abstract: Provided are a cloth and a protective product, which allow for any color appearance and have excellent protection performance against electric arcs. The cloth has a woven fabric structure, wherein a front-surface spun yarn containing an infrared absorber- and/or electrically conductive agent-containing fiber and not containing carbon is located on a front surface, while a back-surface spun yarn containing a carbon-containing fiber is located on a back surface, and the cloth has an ATPV value of 8.0 cal/cm2 or more in Arc Resistance Test ASTM F1959-1999.Type: ApplicationFiled: December 10, 2019Publication date: January 13, 2022Applicant: TEIJIN LIMITEDInventors: Kengo TANAKA, Kenji IWASHITA, Hiroki SHIMADA, Atsushi KITAMURA
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Patent number: 11125509Abstract: A heat storage system using a heat storage container having a tubular body, an adsorbent that is accommodated in the tubular body, generates heat by adsorption of an adsorbate and absorbs heat by desorption of the adsorbate, and a flow channel that penetrates the tubular body in a longitudinal direction, the heat storage system comprising a diffusion layer for transporting the adsorbate in liquid phase from the flow channel to the adsorbent, wherein the adsorbate is transported to the flow channel, the adsorbate is transported to the diffusion layer, a part of the adsorbate transported to the diffusion layer is adsorbed on the adsorbent, the adsorbent releases heat, and the remaining adsorbate is vaporized by the heat to become heat transport fluid.Type: GrantFiled: January 25, 2019Date of Patent: September 21, 2021Assignee: FURUKAWA ELECTRIC CO., LTD.Inventors: Keiko Chikazawa, Yuichi Kimura, Kengo Tanaka, Mamoru Shimada
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Patent number: 11078608Abstract: The invention addresses the problem of providing a cloth that is excellent not only in flame retardancy and antistatic properties but also in appearance quality and preferably also has protection performance against electric arcs, a method for producing the same, and a textile product. A means for resolution is a cloth including a meta-type wholly aromatic polyamide fiber and an electrically conductive fiber, wherein both the meta-type wholly aromatic polyamide fiber and the electrically conductive fiber are colored.Type: GrantFiled: October 25, 2017Date of Patent: August 3, 2021Assignee: TEIJIN LIMITEDInventors: Kengo Tanaka, Hiroki Shimada, Kenji Iwashita, Kenji Yoshihara
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Publication number: 20210064396Abstract: Provided is a remote operating system which enables to operate a device by a remote operating device in a simple and reliable manner even if the device to be operated is not equipped with a communication function, or if displayed contents on a monitor screen of the device to be operated are not recognized by the remote operating device. A remote operating system (100) includes: a screen acquisition unit (121); an image determination unit (122); a state providing unit (123); an operation reception unit (131); an operating signal output unit (132); a correct or incorrect operation determination unit (133); and a state database DB. The remote operating system (100) further includes a capture device (141) for capturing an image of a monitor X1 of a device X of interest, and a control interface (142) connected to a keyboard X2 of the object X to be controlled in a superimposed manner.Type: ApplicationFiled: November 11, 2020Publication date: March 4, 2021Inventors: Masato Owada, Kengo Tanaka
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Patent number: 10927482Abstract: The problem addressed by the present invention is to provide yarn, which includes an ultrafine filament, and that has superior handling properties, elongation and contraction properties, and with which a fabric and a fiber product of high quality can be obtained, a fabric using this yarn, and a fiber product using this yarn or fabric. The solution is imparting a binder to yarn that includes a filament A-1 with a single fiber diameter of 10 to 3000 nm and a fiber A-2 with a single fiber diameter greater than the filament A-1, and obtaining a fabric or fiber product using the yarn as necessary.Type: GrantFiled: April 7, 2017Date of Patent: February 23, 2021Assignee: TEIJIN FRONTIER CO., LTD.Inventors: Kengo Tanaka, Akira Tanaka