Patents by Inventor Akihiro Asai
Akihiro Asai 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: 20240105693Abstract: A power semiconductor device according to the present invention is provided with: a first circuit body constituting an upper arm of an inverter circuit for converting a DC current into an AC current; a second circuit body constituting a lower arm of the inverter circuit; and a circuit board that has therein a through-hole in which the first circuit body and the second circuit body are disposed and that has an intermediate board between the first circuit body and the second circuit body. The intermediate board has an AC wiring pattern for transmitting the AC current, and the first circuit body and the second circuit body are connected to the AC wiring pattern so as to be in surface contact with the AC wiring pattern.Type: ApplicationFiled: March 8, 2022Publication date: March 28, 2024Inventors: Ti CHEN, Akihiro NAMBA, Takeshi TOKUYAMA, Takahiro ARAKI, Kyota ASAI
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Publication number: 20230201222Abstract: The present disclosure provides methods method for alleviating liver injury using a Farnesoid X receptor (FXR) activator.Type: ApplicationFiled: May 12, 2021Publication date: June 29, 2023Applicant: CHILDREN'S HOSPITAL MEDICAL CENTERInventor: Akihiro ASAI
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Patent number: 11617868Abstract: The balloon catheter of the present invention is provided with a balloon base at a front end of a tubular catheter body having a predetermined length. The balloon base includes a cylindrical base having a larger diameter than an outer diameter of the catheter body, and a lumen having substantially the same diameter as the outer diameter of the catheter body is formed on the base over an entire length with both ends opened. A central axis of the lumen is inclined at a predetermined angle with respect to a central axis of the base concentric with a central axis of the catheter body, and an outer peripheral surface is formed in parallel with the central axis of the base. The balloon is provided on the outer peripheral surface of the parallel base to obliquely inflate with respect to the central axis of the catheter body during inflation.Type: GrantFiled: March 30, 2016Date of Patent: April 4, 2023Assignees: NATIONAL UNIVERSITY CORPORATION KOBE UNIVERSITY, FUJI SYSTEMS CORPORATIONInventors: Eisei Gu, Takumi Fukumoto, Fumikazu Watanabe, Akihiro Asai
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Publication number: 20220226011Abstract: Disclosed is an organ sucking and grasping tool capable of reducing the height of the sucking and grasping tool, capable of reserving a viewing field for an endoscope, capable of reserving space for operations, and including a suction cup responsive to the deformation of an organ and unlikely to be detached. An organ sucking and grasping tool includes a suction tube body and a plurality of suction cups for organ suction provided at a front end portion of the suction tube body. The organ sucking and grasping tool sucks, elevates, and grasps an organ using suction force generated by the suction cups. The suction cups are held by a ring-shaped holder provided at the front end portion of the tube body, and an annular flange is provided at an open end portion of each of the suction cups.Type: ApplicationFiled: April 23, 2020Publication date: July 21, 2022Applicants: KYOTO UNIVERSITY, FUJI SYSTEMS CORPORATIONInventors: Toshihiko SATO, Yusuke MURANISHI, Akihiro ASAI
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Patent number: 11370085Abstract: A shot treatment apparatus and a shot treatment method applicable to the mass production of a wide range of products. A shot treatment apparatus, comprising: a spinning table which has a first rotary shaft and which holds and rotates a workpiece; an ejection apparatus that ejects a shot media from a nozzle to the workpiece; a cabinet having a treatment chamber formed therein; and a control apparatus comprising a first control unit that controls the ejection apparatus, the nozzle being held so as to be positionable and three-dimensionally swingable with respect to the workpiece.Type: GrantFiled: October 26, 2020Date of Patent: June 28, 2022Assignee: SINTOKOGIO, LTD.Inventors: Akihiro Asai, Motoaki Ishiguro, Shuichi Kamori
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Publication number: 20210395679Abstract: The present disclosure provides methods for generating an in vitro model of cholestatic liver disease and uses of the same. In some embodiments, the methods involve an in vitro culture system for producing hepatocyte-like cells from pluripotent stem cells.Type: ApplicationFiled: November 8, 2019Publication date: December 23, 2021Inventor: Akihiro ASAI
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Publication number: 20210197338Abstract: A shot treatment apparatus and a shot treatment method applicable to the mass production of a wide range of products. A shot treatment apparatus, comprising: a spinning table which has a first rotary shaft and which holds and rotates a workpiece; an ejection apparatus that ejects a shot media from a nozzle to the workpiece; a cabinet having a treatment chamber formed therein; and a control apparatus comprising a first control unit that controls the ejection apparatus, the nozzle being held so as to be positionable and three-dimensionally swingable with respect to the workpiece.Type: ApplicationFiled: October 26, 2020Publication date: July 1, 2021Applicant: SINTOKOGIO, LTD.Inventors: Akihiro ASAI, Motoaki ISHIGURO, Shuichi KAMORI
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Patent number: 10870354Abstract: A power reception coil is a circular coil having a hollow portion formed in a center portion of the power reception coil in a radial direction. The power reception coil, a resonant capacitor, and a magnetic member are arranged in a power reception coil unit forming a contactless power reception device. The power reception coil unit is attached to a member element serving as a frame member of a vehicle body. A hollow portion corresponding region which is a portion of the power reception coil unit corresponding to the hollow portion of the power reception coil is in contact with the member element.Type: GrantFiled: January 30, 2017Date of Patent: December 22, 2020Assignee: NISSAN MOTOR CO., LTD.Inventor: Akihiro Asai
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Patent number: 10658879Abstract: A contactless power receiving device includes: a power reception coil unit including a power reception coil configured to contactlessly receive magnetic flux sent from a power supply coil; iron bolts fixing the power reception coil unit to a vehicle body; and a magnetic shield plate configured to suppress diffusion of the magnetic flux received by the power reception coil unit to surroundings. The magnetic shield plate is arranged below all of the iron bolts.Type: GrantFiled: May 25, 2016Date of Patent: May 19, 2020Assignee: NISSAN MOTOR CO., LTD.Inventor: Akihiro Asai
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Publication number: 20200047633Abstract: A power reception coil is a circular coil having a hollow portion formed in a center portion of the power reception coil in a radial direction. The power reception coil, a resonant capacitor, and a magnetic member are arranged in a power reception coil unit forming a contactless power reception device. The power reception coil unit is attached to a member element serving as a frame member of a vehicle body. A hollow portion corresponding region which is a portion of the power reception coil unit corresponding to the hollow portion of the power reception coil is in contact with the member element.Type: ApplicationFiled: January 30, 2017Publication date: February 13, 2020Applicant: NISSAN MOTOR CO., LTD.Inventor: Akihiro ASAI
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Publication number: 20190366058Abstract: The balloon catheter of the present invention is provided with a balloon base at a front end of a tubular catheter body having a predetermined length. The balloon base includes a cylindrical base having a larger diameter than an outer diameter of the catheter body, and a lumen having substantially the same diameter as the outer diameter of the catheter body is formed on the base over an entire length with both ends opened. A central axis of the lumen is inclined at a predetermined angle with respect to a central axis of the base concentric with a central axis of the catheter body, and an outer peripheral surface is formed in parallel with the central axis of the base. The balloon is provided on the outer peripheral surface of the parallel base to obliquely inflate with respect to the central axis of the catheter body during inflation.Type: ApplicationFiled: March 30, 2016Publication date: December 5, 2019Applicants: NATIONAL UNIVERSITY CORPORATION KOBE UNIVERSITY, FUJI SYSTEMS CORPORATIONInventors: Eisei GU, Takumi FUKUMOTO, Fumikazu WATANABE, Akihiro ASAI
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Publication number: 20190341817Abstract: A contactless power receiving device includes: a power reception coil unit including a power reception coil configured to contactiessly receive magnetic flux sent from a power supply coil; iron bolts fixing the power reception coil unit to a vehicle body; and a magnetic shield plate configured to suppress diffusion of the magnetic flux received by the power reception coil unit to surroundings. The magnetic shield plate is arranged below all of the iron bolts.Type: ApplicationFiled: May 25, 2016Publication date: November 7, 2019Applicant: NISSAN MOTOR CO., LTD.Inventor: Akihiro ASAI
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Patent number: 10304616Abstract: It includes an electricity receiving coil unit having an electricity receiving coil that generates heats due to electrical conduction thererof, an electric component storage box having a rectifier, and a harness electrically connecting the electricity receiving coil unit and the electric component storage box with each other. Part of the harness is routed in a vicinity of a front end of an upper face of the electricity receiving coil unit. Flows are made turbulent when traveling air hits the harness, and thereby airflows behind the harness turn into turbulence. Even if affixes such as mud fixate on the upper face of the electricity receiving coil unit, the affixes are removed by the turbulence.Type: GrantFiled: April 8, 2015Date of Patent: May 28, 2019Assignee: NISSAN MOTOR CO., LTD.Inventor: Akihiro Asai
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Publication number: 20180351655Abstract: An output apparatus outputs an acoustic wave set with a specific frequency indicating identification information to a terminal apparatus that is to acquire the identification information from the acoustic wave. The output apparatus includes circuitry. The circuitry adjusts the specific frequency of the acoustic wave to another frequency by applying a predetermined frequency to the specific frequency, depending on a moving direction of a terminal apparatus that is to be notified of the identification information. The circuitry generates the acoustic wave of the another frequency. The circuitry outputs the generated acoustic wave of the another frequency.Type: ApplicationFiled: May 25, 2018Publication date: December 6, 2018Inventors: Takaya Ochiai, Tsutomu Kawase, Takashi Saito, Shingo Matsushita, Akihiro Asai
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Patent number: 10144300Abstract: A power receiving portion is installed in a middle in a vehicle width direction at a front portion on a lower surface of a floor panel close to steered front wheels. Therefore, the power receiving portion can be accurately aligned with a power supply portion on the road surface side so as to face each other with a sense of steering in such a manner as to align the center of a vehicle with the power supply portion when the vehicle advances to a predetermined stop position in a parking space. Moreover, a high-current system wire harness for transmitting electric power from a battery located on the lower surface of the floor panel to a motor unit in a front compartment passes above the power receiving portion so as to improve the safety of the wire harness.Type: GrantFiled: March 20, 2014Date of Patent: December 4, 2018Assignee: NISSAN MOTOR CO., LTD.Inventor: Akihiro Asai
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Publication number: 20180082779Abstract: It includes an electricity receiving coil unit having an electricity receiving coil that generates heats due to electrical conduction thererof, an electric component storage box having a rectifier, and a harness electrically connecting the electricity receiving coil unit and the electric component storage box with each other. Part of the harness is routed in a vicinity of a front end of an upper face of the electricity receiving coil unit. Flows are made turbulent when traveling air hits the harness, and thereby airflows behind the harness turn into turbulence. Even if affixes such as mud fixate on the upper face of the electricity receiving coil unit, the affixes are removed by the turbulence.Type: ApplicationFiled: April 8, 2015Publication date: March 22, 2018Applicant: NISSAM MOTOR CO., LTD.Inventor: Akihiro ASAI
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Patent number: 9827864Abstract: A power reception-side coil is mounted on the bottom surface of a vehicle body and contactlessly receives power transmitted from a power feeding-side coil disposed on the ground. The power reception-side coil is of a solenoid type such that an electric wire is wound with the vehicle longitudinal direction as a coil axis. A shield member that is a plate-shaped magnetic shield is disposed between the bottom surface of the vehicle body and the power reception-side coil. The shield member has a forward-inclined surface serving as a first wall part protruding downward of the vehicle, the forward-inclined surface being raised and provided at the vehicle front side in a direction of the coil axis with respect to the power reception-side coil.Type: GrantFiled: September 27, 2013Date of Patent: November 28, 2017Assignee: NISSAN MOTOR CO., LTD.Inventors: Akihiro Asai, Kengo Maikawa
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Patent number: 9725004Abstract: In this vehicle mounting structure of a contactless power reception device, a power reception-side coil that configured to be mounted on a bottom surface of a vehicle body and that has an electrically conductive wire wound with the vehicle longitudinal direction as the coil axis is attached to the vehicle body by means of a fastening member made of a magnetic body. The fastening member is disposed to the outside of the power reception-side coil in a direction perpendicular to the coil axis.Type: GrantFiled: August 12, 2014Date of Patent: August 8, 2017Assignee: NISSAN MOTOR CO., LTD.Inventors: Akihiro Asai, Shigeyuki Yoshida, Kengo Maikawa
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Patent number: 9539908Abstract: A power receiving coil (22) is installed at a front portion on a lower surface of a floor panel (40) close to steered front wheels (W) and elongated across a lower open portion of a tunnel portion (42) located in the center of a vehicle (1). Therefore, the power receiving coil (22) can be accurately aligned with a power transmission coil (12) on the load surface side to face each other with a sense of steering in such a manner as to align the center of the vehicle with the power transmission coil (12) when the vehicle (1) advances to a predetermined stop position in a parking space (2).Type: GrantFiled: March 20, 2014Date of Patent: January 10, 2017Assignee: NISSAN MOTOR CO., LTD.Inventors: Akihiro Asai, Shigeyuki Yoshida
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Publication number: 20160243948Abstract: In this vehicle mounting structure of a contactless power reception device, a power reception-side coil that configured to be mounted on a bottom surface of a vehicle body and that has an electrically conductive wire wound with the vehicle longitudinal direction as the coil axis is attached to the vehicle body by means of a fastening member made of a magnetic body. The fastening member is disposed to the outside of the power reception-side coil in a direction perpendicular to the coil axis.Type: ApplicationFiled: August 12, 2014Publication date: August 25, 2016Applicant: NISSAN MOTOR CO., LTD.Inventors: Akihiro ASAI, Shigeyuki YOSHIDA, Kengo MAIKAWA