Patents by Inventor Atsushi Nakano
Atsushi Nakano 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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Patent number: 11965469Abstract: In an internal combustion engine having a cylinder in which an air-fuel mixture of gaseous fuel and intake air is combusted, an intake passage connected to the cylinder, and a supercharger for supercharging the intake air, in a case where backfire is generated in a set period before supercharging is performed by the supercharger, supercharging is performed at a smaller supercharging pressure than in a case where backfire is not generated in the set period.Type: GrantFiled: August 17, 2023Date of Patent: April 23, 2024Assignee: Toyota Jidosha Kabushiki KaishaInventors: Toshiaki Tamachi, Yoshito Sekiguchi, Masato Nakano, Koichi Okuda, Tatsuya Imamura, Atsushi Tabata
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Patent number: 11951829Abstract: A power transmission device is provided, which includes a main-drive-wheel drive part, and an auxiliary-drive-wheel drive part having a power extraction part which has a transfer gear set comprised of a transfer drive gear connected to the main-drive-wheel drive part and a transfer driven gear meshing with the transfer drive gear and configured to transmit power to the auxiliary drive wheels. In a power transmission path from the main-drive-wheel drive part to the transfer drive gear, an input shaft connected to the main-drive-wheel drive part and a power transmission shaft connected to the transfer drive gear are coupled to each other in a radial direction through a first spline having a first backlash. A first shear damper without backlash and a second shear damper provided with a second spline having a second backlash smaller than the first backlash are provided between the input shaft and the power transmission shaft.Type: GrantFiled: February 25, 2021Date of Patent: April 9, 2024Assignee: Mazda Motor CorporationInventors: Seiji Hidaka, Atsushi Nakano
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Patent number: 11945232Abstract: An inkjet printing apparatus is provided with a tank that stores ink, a print head that performs print operation by ejecting ink supplied from the tank, a circulation unit that establishes a circulating state to circulate ink in a circulation path if print operation is performed and establishes a stopped state to stop circulation of ink if print operation is terminated, and a deaeration unit that performs deaeration operation to deaerate ink inside the circulation path. The apparatus includes an estimation unit that estimates a dissolved gas amount in ink inside the circulation path based on dissolved gas amounts increased in the circulating state and in the stopped state, respectively, and a control unit that causes the deaeration unit to execute deaeration operation after completion of print operation if the dissolved gas amount estimated by the estimation unit exceeds a predetermined threshold.Type: GrantFiled: December 22, 2022Date of Patent: April 2, 2024Assignee: CANON KABUSHIKI KAISHAInventors: Takatoshi Nakano, Yoshinori Nakagawa, Atsushi Takahashi, Takuya Fukasawa
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Patent number: 11932137Abstract: A regenerative torque upper limit is set to a larger value when a rear-wheel distribution ratio is small than when the rear-wheel distribution ratio is large. Accordingly, when a distribution of a drive power to front wheels is large, a regenerative torque of a second rotary machine can be increased such that wheels are less likely to slip at the time of performing of regeneration control when the distribution of the drive power to the front wheels is small in comparison with a case in which the regenerative torque upper limit is set to a constant value similarly to when the distribution of the drive power to the front wheels is small. In this way, it is possible to increase the regenerative torque of the second rotary machine according to the rear-wheel distribution ratio.Type: GrantFiled: February 3, 2021Date of Patent: March 19, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Atsushi Tabata, Koichi Okuda, Masato Nakano, Yuki Makino
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Publication number: 20240084677Abstract: A perforation tool for use in a well bore is described herein. The perforation tool comprises a housing; a plurality of frames that fit inside the housing, each frame having a cylindrical shape with a central axis and a plurality of liners, each liner having an axis perpendicular to the central axis, wherein the axes of the liners of each frame are disposed in a plane perpendicular to the central axis, and the frames are axially stackable; an electrical conductor disposed along a central passage of each frame; a plurality of shaped charges secured in the liners of the frames; a bulkhead member disposed in the housing and forming a seal with the housing; and an initiator module disposed in the housing with the bulkhead member between the initiator module and the plurality of frames.Type: ApplicationFiled: November 15, 2023Publication date: March 14, 2024Inventors: Andrew Prisbell, Atsushi Nakano, Todd Busch, Erick Lowe
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Publication number: 20240083313Abstract: A seat comprises a seat cushion pad (20) including an air flow passage (21), and a blower connected to the air flow passage (21). The seat cushion pad (20) comprises a pad body (100), and a cover member (200) disposed on an upper surface of the pad body (100) to form the air flow passage (21) between the pad body (100) and the cover member (200). The cover member (200) comprises a first cover member (210) disposed on the upper surface of the pad body (100), and a second cover member (220) disposed on an upper surface of the first cover member (210). The first cover member (210) is fixed to the pad body (100), and the second cover member (220) is fixed to the first cover member (210) and to the pad body (100).Type: ApplicationFiled: November 8, 2023Publication date: March 14, 2024Inventors: Atsushi OKIMURA, Tatsumi KONNO, Wataru NISHII, Yuji NAKANO, Hiroshi IZAWA, Hiromi TANIGUCHI
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Patent number: 11927165Abstract: The electronic control unit performs a retarding process of retarding the ignition timing when the fuel pressure decreases, and lowers the peak of the combustion pressure in the cylinder, thereby suppressing the inflow of the combustion gas to the injector. Further, the electronic control unit performs an increasing process of increasing the injection amount of the hydrogen gas together with the retarding process, thereby suppressing the torque decrease of the engine due to the retard of the ignition timing.Type: GrantFiled: April 20, 2023Date of Patent: March 12, 2024Assignee: Toyota Jidosha Kabushiki KaishaInventors: Atsushi Yui, Tomohiro Nakano
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Patent number: 11919318Abstract: Ink is circulated through a circulation flow path between a print head and an ink tank. Detection operation for detecting an ink ejection state in an ejection opening in the print head is performed. The ink circulation and the detection operation are simultaneously performed by performing the detection operation in response to a start of the ink circulation.Type: GrantFiled: September 10, 2021Date of Patent: March 5, 2024Assignee: Canon Kabushiki KaishaInventors: Takuya Fukasawa, Yuhei Oikawa, Takatoshi Nakano, Yoshinori Nakagawa, Atsushi Takahashi
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Publication number: 20240068420Abstract: In an internal combustion engine having a cylinder in which an air-fuel mixture of gaseous fuel and intake air is combusted, an intake passage connected to the cylinder, and a supercharger for supercharging the intake air, in a case where backfire is generated in a set period before supercharging is performed by the supercharger, supercharging is performed at a smaller supercharging pressure than in a case where backfire is not generated in the set period.Type: ApplicationFiled: August 17, 2023Publication date: February 29, 2024Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Toshiaki TAMACHI, Yoshito SEKIGUCHI, Masato NAKANO, Koichi OKUDA, Tatsuya IMAMURA, Atsushi TABATA
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Publication number: 20240067158Abstract: A vehicle including an internal combustion engine and an automatic transmission capable of transmitting and receiving torque to and from an output shaft of the internal combustion engine is controlled. During operation of the internal combustion engine, a process that calculates a diluted water amount based on an operation state of the internal combustion engine is executed. The diluted water amount is the amount of water contained in lubricating oil in the internal combustion engine. Further, a process that controls the automatic transmission such that torque per unit period in the internal combustion engine becomes smaller when the diluted water amount is relatively large compared to when the diluted water amount is relatively small, while continuing the operation of the internal combustion engine, is executed.Type: ApplicationFiled: August 16, 2023Publication date: February 29, 2024Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Atsushi TABATA, Koichi OKUDA, Masato NAKANO, Nobuhiko SATAKE, Yoshito SEKIGUCHI
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Patent number: 11913766Abstract: A charge canister for a perforation tool has a cylindrical body with an expansion portion extending along a radius of the cylindrical body, the expansion portion having a narrow portion at a first end of the expansion portion and a wide portion at a second end of the expansion portion opposite from the first end. An explosive material is disposed within the expansion portion in direct contact with an interior surface thereof.Type: GrantFiled: March 10, 2022Date of Patent: February 27, 2024Assignee: Schlumberger Technology CorporationInventors: Andrew Prisbell, Atsushi Nakano, Terry Butler
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Patent number: 11906080Abstract: An integrated block 1 serving as a fluid device includes: a flow port 13 open to form one end of a passage P; an annular groove 14 arranged along an outer circumferential edge of the flow port 13, the annular groove 14 being open so as to insert the gasket 2 therein; a first tapered portion 17 arranged on a radially-inner side interior wall 14b of the annular groove 14 and sloped radially outward from an open end of the annular groove 14 in a depth direction of the annular groove 14; and a guide 18 arranged on a radially-outer side interior wall 14a of the annular groove 14, extending throughout a predetermined range D from the open end of the annular groove 14 in the depth direction, and having a larger diameter than an outer circumferential surface 22a of a second sealing portion 22 of the gasket 2.Type: GrantFiled: March 12, 2019Date of Patent: February 20, 2024Assignee: NIPPON PILLAR PACKING CO., LTD.Inventors: Tomohiro Adachi, Tomoyuki Koike, Atsushi Nakano, Toshihide Iida
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Patent number: 11885444Abstract: A sleeve, a cylindrical member for connecting a tube to a tubular body of a fitting, includes a first peripheral wall end portion facing a peripheral wall end portion of the tubular body, and a second peripheral wall end portion pressed into an open end of the tube. The first peripheral wall end portion includes either an annular protrusion or groove. The annular protrusion is pressed into an annular groove in the peripheral wall end portion of the tubular body. The annular groove allows an annular protrusion axially projecting from the peripheral wall end portion of the tubular body to be pressed thereinto. The second peripheral wall end portion includes a bulge portion to expand the diameter of the open end of the tube. An outer periphery of the first peripheral wall end portion includes a flange to axially face the peripheral wall end portion of the tubular body.Type: GrantFiled: May 14, 2019Date of Patent: January 30, 2024Assignee: NIPPON PILLAR PACKING CO., LTD.Inventors: Kiyotaka Ohmae, Masashi Katanaya, Atsushi Nakano
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Publication number: 20240026053Abstract: A transparent article is obtained by molding a cyclic olefin copolymer or a resin composition containing the cyclic olefin copolymer. The cyclic olefin copolymer is obtained by a process that at least includes a step of preparing a norbornene monomer and ethylene as monomers in a polymerization vessel and a step of polymerizing the monomers in the polymerization vessel in the presence of a metal-containing catalyst. The metal-containing catalyst satisfies predetermined conditions.Type: ApplicationFiled: September 3, 2021Publication date: January 25, 2024Applicant: Polyplastics Co., Ltd.Inventors: Tomoyuki Tada, Naoyuki Wakitani, Atsushi Nakano
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Publication number: 20240018852Abstract: Downhole tools with propulsion units are described herein. Perforation assemblies described herein have a perforation tool and a propulsion unit coupled to the perforation tool, the propulsion unit comprising an impeller and a protective structure disposed around the impeller.Type: ApplicationFiled: September 27, 2023Publication date: January 18, 2024Inventors: Andrew Prisbell, Atsushi Nakano, Hari Prakash Kalakonda
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Patent number: 11834934Abstract: A perforation tool for use in a well bore is described herein. The perforation tool comprises a housing; a plurality of frames that fit inside the housing, each frame having a cylindrical shape with a central axis and a plurality of liners, each liner having an axis perpendicular to the central axis, wherein the axes of the liners of each frame are disposed in a plane perpendicular to the central axis, and the frames are axially stackable; an electrical conductor disposed along a central passage of each frame; a plurality of shaped charges secured in the liners of the frames; a bulkhead member disposed in the housing and forming a seal with the housing; and an initiator module disposed in the housing with the bulkhead member between the initiator module and the plurality of frames.Type: GrantFiled: May 14, 2020Date of Patent: December 5, 2023Assignee: Schlumberger Technology CorporationInventors: Andrew Prisbell, Atsushi Nakano, Todd Busch, Erick Lowe
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Publication number: 20230349271Abstract: A switch for a downhole tool features a circuit board having a plurality of push connectors and a container for enclosing the circuit board, the circuit board making electrical connection in the container by pushing the circuit board into the container, or by pushing electrical connectors into the container.Type: ApplicationFiled: August 30, 2021Publication date: November 2, 2023Inventors: Andrew Prisbell, Todd Busch, Atsushi Nakano, Hari Prakash Kalakonda, Steven Hernandez
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Patent number: 11781403Abstract: A perforation assembly includes a perforation tool and a propulsion unit coupled to the perforation tool, the propulsion unit comprising an impeller and a protective structure disposed around the impeller.Type: GrantFiled: March 14, 2022Date of Patent: October 10, 2023Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Andrew Prisbell, Atsushi Nakano, Hari Prakash Kalakonda
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Patent number: D997310Type: GrantFiled: May 26, 2021Date of Patent: August 29, 2023Assignee: NIPPON PILLAR PACKING CO., LTD.Inventors: Atsushi Nakano, Kiyotaka Ohmae, Kazukiyo Teshima
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Patent number: D1016958Type: GrantFiled: September 11, 2020Date of Patent: March 5, 2024Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Andrew Prisbell, Todd Busch, Atsushi Nakano, Erick Lowe