Patents by Inventor Fuminori Suzuki
Fuminori Suzuki 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: 12191717Abstract: A rotor of an electrical rotating device includes a rotor core, plural permanent magnets mounted on an outer circumference of the rotor core, a retaining sleeve that holds the permanent magnets from their outer side, a cooling fluid flow channel formed on each surface of the permanent magnets on a side of the retaining sleeve [or on each surface on a side of the rotor core], and a seal ring. The retaining sleeve is configured of plural divided sleeves divided along a direction of a rotation axis of the rotor. A seam is formed between adjacent divided sleeves in the plural divided sleeves. The seal ring covers the seam from an outer circumferential side [or an inner circumferential side].Type: GrantFiled: April 5, 2022Date of Patent: January 7, 2025Assignee: IHI CorporationInventors: Fuminori Suzuki, Naoki Seki
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Publication number: 20240413674Abstract: A stator includes: a stator core (11) including a back yoke (13) provided around an axis and surrounding a rotor (30), and teeth (14) provided at intervals in a circumferential direction of the axis and attached to the back yoke (13), and a coil (12) wound around each of the teeth (14). Each of the teeth (14) has an inner circumferential surface facing the rotor (30) and includes a tip portion (14a) projecting forward and backward in a rotational direction of the rotor (30), and a base portion (14b) facing the back yoke (13). The inner circumferential surface (14c) includes a first region (14d) and a second region (14e). An average interval between the second region (14e) and an outermost locus of the rotor (30) is larger than an average interval between the first region (14d) and the outermost locus of the rotor (30).Type: ApplicationFiled: August 22, 2024Publication date: December 12, 2024Applicants: IHI Corporation, NATIONAL UNIVERSITY CORPORATION OKAYAMA UNIVERSITYInventors: Fuminori SUZUKI, Takehiro JIKUMARU, Masatsugu TAKEMOTO
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Publication number: 20230238845Abstract: A stator includes a stator core having a plurality of slots opening toward an inner surface and a plurality of teeth formed between the slots adjacent to each other; and flat angle coils wound around the teeth respectively. Each of the teeth includes a widened portion having a width in a circumferential direction of the inner surface, closer to the inner surface and the widened portion becomes wider, in a cross-sectional view taken along a cross section perpendicular to a rotational axis of a rotor surrounded by the stator core.Type: ApplicationFiled: August 27, 2020Publication date: July 27, 2023Applicant: IHI CorporationInventors: Fuminori SUZUKI, Takehiro JIKUMARU, Koji YAMAGUCHI, Yosuke AKAMATSU, Masatsugu TAKEMOTO, Sho MANABE
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Patent number: 11549583Abstract: A current control device brings, after a target current has been changed to an upper side, a solenoid into a full-on state at a first timing that arrives in a predetermined control transition cycle shorter than an on-off cycle, determines whether an excitation current has become equal to or larger than a full-on threshold larger than the target current, brings the solenoid into a full-off state at a first timing that arrives in a predetermined energization switching cycle shorter than the on-off cycle after the excitation current has become equal to or larger than the full-on threshold, determines whether the excitation current has become equal to or smaller than a full-off threshold smaller than the target current, and causes a transition to a steady control at a first timing that arrives in the control transition cycle after the excitation current has become equal to or smaller than the full-off threshold.Type: GrantFiled: March 9, 2020Date of Patent: January 10, 2023Assignee: DENSO CORPORATIONInventors: Masashi Nakagawa, Fuminori Suzuki, Kengo Takei
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Publication number: 20220385123Abstract: Provided is a stator including a coil of a winding of a flat wire conductor, a stator core including a slot for housing a part of the coil, and a flow passage part through which a coolant flows, provided between a wall part of the slot and an outer surface of the coil facing the wall part. The extension shape of the flow passage part from an inlet to an outlet for the coolant changes along the axial direction of the stator core. The flow passage part is, for example, a concave part formed on the wall part of the slot.Type: ApplicationFiled: August 8, 2022Publication date: December 1, 2022Applicant: IHI CorporationInventors: Naoki SEKI, Fuminori SUZUKI
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Patent number: 11408344Abstract: A cooling system includes: a core casing configured to house a compressor, a combustion chamber, and a turbine; a tail cone configured to form at least part of an exhaust passage of the turbine together with the core casing; struts configured to connect the core casing with a support body of the tail cone; a housing installed in the tail cone, configured to house an electrical apparatus; and at least one primary duct configured to connect between an internal space of the housing and an outlet passage of the compressor or a discharge port of a blower installed in a gas turbine engine via at least one of the struts and a radial outside of the core casing.Type: GrantFiled: June 29, 2021Date of Patent: August 9, 2022Assignee: IHI CorporationInventors: Fuminori Suzuki, Naoki Seki, Toshikazu Kobayashi
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Publication number: 20220231559Abstract: A rotor of an electrical rotating device includes a rotor core, plural permanent magnets mounted on an outer circumference of the rotor core, a retaining sleeve that holds the permanent magnets from their outer side, a cooling fluid flow channel formed on each surface of the permanent magnets on a side of the retaining sleeve [or on each surface on a side of the rotor core], and a seal ring. The retaining sleeve is configured of plural divided sleeves divided along a direction of a rotation axis of the rotor. A seam is formed between adjacent divided sleeves in the plural divided sleeves. The seal ring covers the seam from an outer circumferential side [or an inner circumferential side].Type: ApplicationFiled: April 5, 2022Publication date: July 21, 2022Applicant: IHI CorporationInventors: Fuminori SUZUKI, Naoki SEKI
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Publication number: 20210324799Abstract: A cooling system includes: a core casing configured to house a compressor, a combustion chamber, and a turbine; a tail cone configured to form at least part of an exhaust passage of the turbine together with the core casing; struts configured to connect the core casing with a support body of the tail cone; a housing installed in the tail cone, configured to house an electrical apparatus; and at least one primary duct configured to connect between an internal space of the housing and an outlet passage of the compressor or a discharge port of a blower installed in a gas turbine engine via at least one of the struts and a radial outside of the core casing.Type: ApplicationFiled: June 29, 2021Publication date: October 21, 2021Applicant: IHI CorporationInventors: Fuminori SUZUKI, Naoki SEKI, Toshikazu KOBAYASHI
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Publication number: 20200362980Abstract: A current controller for controlling a current of a solenoid includes a drive unit configured to energize the solenoid with a predetermined energization period according to a drive signal, a signal output unit configured to generate and output the drive signal based on a target current for the solenoid, and a target setting unit that applies a dither amplitude to the target current such that the target current changes periodically with a dither period longer than the energization period. The target setting unit is configured to set the target current according to a positional relationship between a hydraulic pressure gentle curve region of the solenoid and a target stroke of the valve element corresponding to a target output hydraulic pressure.Type: ApplicationFiled: July 24, 2020Publication date: November 19, 2020Inventors: Fuminori SUZUKI, Kazuhiro SASAO
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Publication number: 20200357552Abstract: A current controller for controlling a current of a solenoid is applied to a solenoid valve with a self-regulating pressure function from a feedback force according to an output hydraulic pressure. The current controller includes a current detector configured to detect an actual current of the solenoid, a drive unit configured to energize the solenoid with a predetermined energization period according to a drive signal, a signal output unit that sets a duty ratio of the drive signal such that the actual current follows a target current, the signal output unit being configured to generate and output the drive signal, a target setting unit that applies a dither amplitude with a dither period longer than the energization period, and an oscillation determination unit that determines, based on a behavior of the actual current, whether excessive oscillation is occurring or is trending toward excessive oscillation.Type: ApplicationFiled: July 29, 2020Publication date: November 12, 2020Inventors: Fuminori SUZUKI, Yuta MIZUNO
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Publication number: 20200208739Abstract: A current control device brings, after a target current has been changed to an upper side, a solenoid into a full-on state at a first timing that arrives in a predetermined control transition cycle shorter than an on-off cycle, determines whether an excitation current has become equal to or larger than a full-on threshold larger than the target current, brings the solenoid into a full-off state at a first timing that arrives in a predetermined energization switching cycle shorter than the on-off cycle after the excitation current has become equal to or larger than the full-on threshold, determines whether the excitation current has become equal to or smaller than a full-off threshold smaller than the target current, and causes a transition to a steady control at a first timing that arrives in the control transition cycle after the excitation current has become equal to or smaller than the full-off threshold.Type: ApplicationFiled: March 9, 2020Publication date: July 2, 2020Inventors: Masashi NAKAGAWA, Fuminori SUZUKI, Kengo TAKEI
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Patent number: 10575128Abstract: A determination unit refers to position information of a terminal device registered in a given base station device to determine ease of connection to another base station device. A generator generates, for the terminal device, guidance information to prompt the terminal device to move to a position where a likelihood of connection to the other base station device is increased, based on a result of determination in the determination unit. A transmitter transmits the guidance information generated in the generator to the terminal device.Type: GrantFiled: February 20, 2018Date of Patent: February 25, 2020Assignee: JVC KENWOOD CORPORATIONInventors: Fuminori Suzuki, Ichiro Shishido, Tomonori Nagahama
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Patent number: 10262445Abstract: An imaging unit captures an image. A communication unit communicates with a base station device and acquires ease information related to ease of communication with at least one base station device and associated with positional information. A display unit displays an image captured by the imaging unit, and displays the ease information in the image, associating the positional information in the ease information with coordinates in the image.Type: GrantFiled: February 8, 2017Date of Patent: April 16, 2019Assignee: JVC KENWOOD CorporationInventors: Fuminori Suzuki, Ichiro Shishido
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Patent number: 10176618Abstract: A positioning unit identifies first positional information of a mobile terminal device. A communication unit acquires second positional information identified in the other mobile terminal device. An imaging unit captures an image of a surrounding environment. An acquisition unit acquires information related to a status dependent on an environment surrounding the other mobile terminal device. A display unit displays, in a captured image, another device icon indicating another positioning unit, and displays the acquired information in association with the other device icon.Type: GrantFiled: February 8, 2017Date of Patent: January 8, 2019Assignee: JVC KENWOOD CorporationInventors: Fuminori Suzuki, Ichiro Shishido
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Publication number: 20180242110Abstract: A determination unit refers to position information of a terminal device registered in a given base station device to determine ease of connection to another base station device. A generator generates, for the terminal device, guidance information to prompt the terminal device to move to a position where a likelihood of connection to the other base station device is increased, based on a result of determination in the determination unit. A transmitter transmits the guidance information generated in the generator to the terminal device.Type: ApplicationFiled: February 20, 2018Publication date: August 23, 2018Inventors: Fuminori SUZUKI, Ichiro SHISHIDO, Tomonori NAGAHAMA
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Patent number: 9762122Abstract: A load drive controlling device includes a dulling controller, a dulling adjuster, and a Proportional Integral (PI) controller. The dulling adjuster sets a first electric current value for a dulling adjustment operation according to a change trend of a target electric current value in an inductive load. The dulling adjuster performs the dulling adjustment operation on the first electric current and limits a dulled value based on a guard value. The PI controller performs a PI control based on a deviation between the dulled value and an actual value of the electric current. The dulling controller sets the first electric current value and the guard value according to a change trend of the target electric current value. In such a configuration, the load drive controlling device improves an electric current response while preventing an over-accumulation of an integration value.Type: GrantFiled: September 19, 2014Date of Patent: September 12, 2017Assignee: DENSO CORPORATIONInventors: Yuuta Mizuno, Fumihiko Nakane, Fuminori Suzuki, Hiromitsu Nagata
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Patent number: 9759316Abstract: A normal oil passage that supplies hydraulic pressure to a friction engagement element through a hydraulic control valve, and a bypass oil passage that supplies hydraulic pressure to the friction engagement element while bypassing the hydraulic control valve, are provided. By switching an operative position of a manual valve, a hydraulic pressure supply route to the friction engagement element is switched between the normal oil passage and the bypass oil passage. By switching to the bypass oil passage, the hydraulic pressure supplied to the friction engagement element is not affected by operation of the hydraulic control valve, and a cleaning control may be performed to cause the hydraulic control valve to perform a cleaning operation. Accordingly, even if an operation amount of the cleaning control for the hydraulic control valve is increased, malfunctions by the friction engagement element will not occur.Type: GrantFiled: November 25, 2015Date of Patent: September 12, 2017Assignee: DENSO CORPORATIONInventor: Fuminori Suzuki
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Patent number: 9746072Abstract: An oil pressure control device controls a supply pressure of oil supplied to an oil pressure chamber of a friction element having a first engagement board and a second engagement board engaged with or disengaged from each other between a non-engagement state and a non-sliding engagement state via a sliding engagement state. The oil pressure control device includes: an electromagnetic valve that controls the supply pressure using a spool which reciprocates according to an energizing amount; and a control part that defines a first oscillatory wave part in which the energizing amount is controlled by making a first waveform with a first frequency to superimpose on a second waveform with a second frequency higher than the first frequency during a first period while the sliding engagement state and an instruction value of the supply pressure are kept constant.Type: GrantFiled: May 9, 2016Date of Patent: August 29, 2017Assignee: DENSO CORPORATIONInventors: Akira Sakai, Fuminori Suzuki
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Publication number: 20170228912Abstract: A positioning unit identifies first positional information of a mobile terminal device. A communication unit acquires second positional information identified in the other mobile terminal device. An imaging unit captures an image of a surrounding environment. An acquisition unit acquires information related to a status dependent on an environment surrounding the other mobile terminal device. A display unit displays, in a captured image, another device icon indicating another positioning unit, and displays the acquired information in association with the other device icon.Type: ApplicationFiled: February 8, 2017Publication date: August 10, 2017Applicant: JVC KENWOOD CorporationInventors: Fuminori SUZUKI, Ichiro SHISHIDO
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Publication number: 20170228906Abstract: An imaging unit captures an image. A communication unit communicates with a base station device and acquires ease information related to ease of communication with at least one base station device and associated with positional information. A display unit displays an image captured by the imaging unit, and displays the ease information in the image, associating the positional information in the ease information with coordinates in the image.Type: ApplicationFiled: February 8, 2017Publication date: August 10, 2017Applicant: JVC KENWOOD CorporationInventors: Fuminori SUZUKI, Ichiro SHISHIDO