Patents by Inventor Naoki Hiramatsu
Naoki Hiramatsu 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: 20240302310Abstract: According to one embodiment, a sensor includes a base including a first base region and a second base region, and an element section. The element section includes a fixed electrode fixed to the second base region, a first fixed member fixed to the first base region, a first intermediate member supported by the first fixed member, a first connecting member supported by the first intermediate member, a movable portion, and a first support member. The first connecting member includes a first connecting portion, a second connecting portion, and a third connecting portion. The movable portion is connected to the second connecting portion. The movable portion includes a movable electrode. A first gap is provided between the fixed electrode and the movable portion. The first support member is fixed to the base. The first support member supports the third connecting portion.Type: ApplicationFiled: July 13, 2023Publication date: September 12, 2024Applicant: KABUSHIKI KAISHA TOSHIBAInventor: Naoki HIRAMATSU
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Publication number: 20240302309Abstract: According to one embodiment, a sensor includes a base and an element section. The element section includes a fixed electrode, a first support structure, and a movable member. The first support structure includes, a first fixed member, a first intermediate member supported by the first fixed member, a first connecting member, a first support member, a first cross fixed member, a first cross intermediate member, and a first cross connecting member. The first connecting member includes a first connecting portion, a first support connecting portion, and a first intermediate connecting portion provided between the first connecting portion and the first support connecting portion. The first cross connecting member is supported by the first cross intermediate member.Type: ApplicationFiled: July 11, 2023Publication date: September 12, 2024Applicant: KABUSHIKI KAISHA TOSHIBAInventor: Naoki HIRAMATSU
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Patent number: 12078371Abstract: A temperature sensing system senses a temperature in the monitor space. The temperature sensing system includes a first detector, a second detector, and a processing unit. The first detector detects a temperature on a ceiling and outputs first information about the temperature on the ceiling. The second detector detects infrared radiation emitted from a floor and outputs second information about the infrared radiation from the floor. The processing unit calculates, based on at least the first information and the second information, a spatial temperature distribution which includes a component in a height direction with respect to the monitor space between the ceiling and the floor.Type: GrantFiled: February 17, 2020Date of Patent: September 3, 2024Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Ryota Sudo, Takanori Sugiyama, Takaaki Hiramatsu, Nobuaki Shimamoto, Hiroshi Yamanaka, Naoki Kobayashi
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Patent number: 11774393Abstract: According to one embodiment, a sensor includes a sensor element. The sensor element includes a first base body, a first fixed electrode fixed to the first base body, and a first structure body. The first structure body includes a first fixed portion fixed to the first base body, a first deformable portion supported by the first fixed portion, a first intermediate portion supported by the first deformable portion, and a first movable portion supported by the first intermediate portion. The first deformable portion includes a first deformed facing surface facing the first base body, and a first deformable surface. The first intermediate portion includes a first intermediate facing surface facing the first base body, and a first intermediate surface. The first deformable surface is possible to be deformed depending on a gas included in a space around the first structure body.Type: GrantFiled: July 12, 2022Date of Patent: October 3, 2023Assignee: Kabushiki Kaisha ToshibaInventor: Naoki Hiramatsu
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Publication number: 20230280299Abstract: According to one embodiment, a sensor includes a sensor element. The sensor element includes a first base body, a first fixed electrode fixed to the first base body, and a first structure body. The first structure body includes a first fixed portion fixed to the first base body, a first deformable portion supported by the first fixed portion, a first intermediate portion supported by the first deformable portion, and a first movable portion supported by the first intermediate portion. The first deformable portion includes a first deformed facing surface facing the first base body, and a first deformable surface. The first intermediate portion includes a first intermediate facing surface facing the first base body, and a first intermediate surface. The first deformable surface is possible to be deformed depending on a gas included in a space around the first structure body.Type: ApplicationFiled: July 12, 2022Publication date: September 7, 2023Applicant: KABUSHIKI KAISHA TOSHIBAInventor: Naoki HIRAMATSU
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Patent number: 11448628Abstract: According to one embodiment, a sensor includes a base body, and a first sensor part. The first sensor part includes fixed and movable electrode members, and first and second support members. The fixed electrode member includes a fixed electrode fixed to the base body. The movable electrode member includes a movable electrode. The movable electrode member includes first and second movable portions, and a third movable portion between the first and second movable portions. The first support member is fixed to the base body and connected with the first movable portion. The second support member is fixed to the base body and connected with the second movable portion. The first and second support members support the movable electrode member to provide a first gap between the fixed and movable electrode members. The fixed electrode member includes first, second, and third fixed electrode portions facing the movable portion.Type: GrantFiled: February 23, 2021Date of Patent: September 20, 2022Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Naoki Hiramatsu, Yosuke Akimoto, Hiroaki Yamazaki, Yumi Hayashi
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Publication number: 20220018820Abstract: According to one embodiment, a sensor includes a base body, and a first sensor part. The first sensor part includes fixed and movable electrode members, and first and second support members. The fixed electrode member includes a fixed electrode fixed to the base body. The movable electrode member includes a movable electrode. The movable electrode member includes first and second movable portions, and a third movable portion between the first and second movable portions. The first support member is fixed to the base body and connected with the first movable portion. The second support member is fixed to the base body and connected with the second movable portion. The first and second support members support the movable electrode member to provide a first gap between the fixed and movable electrode members. The fixed electrode member includes first, second, and third fixed electrode portions facing the movable portion.Type: ApplicationFiled: February 23, 2021Publication date: January 20, 2022Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Naoki HIRAMATSU, Yosuke AKIMOTO, Hiroaki YAMAZAKI, Yumi HAYASHI
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Patent number: 10830109Abstract: A variable valve mechanism includes a first member and a second member which are disposed between a cam and a valve, a switch pin that is displaced to connect and disconnect the first member to and from the second member, and a displacement device. The displacement device includes a ring-shaped plate that is fitted on a camshaft of the cam so as to be co-rotatable with the camshaft and slidable in a longitudinal direction of the camshaft and that has one side surface configured to contact the switch pin and has the other side surface including a tapered surface formed so that a plate thickness increases toward a rotational direction, and a support device formed by a support pin and a moving device that moves the support pin to a position where the support pin contacts the tapered surface and a position not contacting the tapered surface.Type: GrantFiled: February 26, 2019Date of Patent: November 10, 2020Assignee: OTICS CORPORATIONInventor: Naoki Hiramatsu
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Publication number: 20190284967Abstract: A variable valve mechanism includes a first member and a second member which are disposed between a cam and a valve, a switch pin that is displaced to connect and disconnect the first member to and from the second member, and a displacement device. The displacement device includes a ring-shaped plate that is fitted on a camshaft of the cam so as to be co-rotatable with the camshaft and slidable in a longitudinal direction of the camshaft and that has one side surface configured to contact the switch pin and has the other side surface including a tapered surface formed so that a plate thickness increases toward a rotational direction, and a support device formed by a support pin and a moving device that moves the support pin to a position where the support pin contacts the tapered surface and a position not contacting the tapered surface.Type: ApplicationFiled: February 26, 2019Publication date: September 19, 2019Inventor: Naoki HIRAMATSU
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Patent number: 10247062Abstract: A variable valve mechanism includes a first cam and a second cam, a main arm that drives a valve when swinging, a first sub arm that swings when pressed by the first cam, a second sub arm that swings when pressed by the second cam, and a switch device. The switch device includes a first switch pin that moves between a first coupled position between the main arm and the first sub arm and a first uncoupled position, and a second switch pin that moves between a second coupled position between the main arm and the second sub arm and a second uncoupled position. Both switch pins are arranged so as to be displaced from each other in positions where these switch pins do not overlap at least during a base circle phase in which base circles of both cams act.Type: GrantFiled: March 24, 2017Date of Patent: April 2, 2019Assignee: OTICS CORPORATIONInventors: Masatoshi Sugiura, Naoki Hiramatsu
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Patent number: 10233790Abstract: A variable valve mechanism of an internal combustion engine includes a cam, a transmission mechanism, a first variable device that controls the transmission mechanism to continuously change at least a maximum lift amount of a lift curve indicating a lift amount of a valve that corresponds to a rotation angle of the internal combustion engine, and a second variable device that controls the transmission mechanism to continuously change at least an operation angle of the lift curve. When the lift curve lies in any condition within a predetermined range that covers all or part of a variable range of the lift curve, an absolute value of a ratio of a maximum lift amount variation to an operation angle variation for a slight change from the condition caused by the first variable device is larger than that for a slight change from the condition caused by the second variable device.Type: GrantFiled: November 30, 2016Date of Patent: March 19, 2019Assignee: OTICS CORPORATIONInventors: Koki Yamaguchi, Naoki Hiramatsu, Masatoshi Sugiura
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Patent number: 10047647Abstract: In a variable valve mechanism of an internal combustion engine, when a slider is displaced relative to an input member and an output member in an axial direction, the output member turns relative to the input member in a swing direction, whereby a lift of a valve is increased or reduced. The variable valve mechanism is brought into a lift retaining state when the slider is placed in an idle running range located on a reducing direction side with respect to a boundary position. The lift retaining state is a state where when the slider is displaced in the axial direction, the input member and the output member are displaced together with the slider in the axial direction, so that the relative displacement of the slider and the relative turning of the output member do not occur and the lift of the valve is retained.Type: GrantFiled: June 3, 2016Date of Patent: August 14, 2018Assignees: OTICS CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Naoki Hiramatsu, Masatoshi Sugiura, Koki Yamaguchi, Motohiro Yuge
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Patent number: 10024199Abstract: The present invention provides a variable valve mechanism of an internal combustion engine, which includes an input member, an output member, a slider and a variable device. The output member has internal space formed therein and has a first cutout and a second cutout which are formed at two positions separated from each other in the swing direction so as to extend from an outer periphery of the output member to the internal space, and the input member is mounted in the internal space so as to extend through both inner sides of the first and second cutouts, and is brought into contact with inner side surfaces of the cutouts from both sides in the thrust direction, whereby relative displacement of the input member together with the slider in the thrust direction with respect to the output member is restricted at two positions by the first and second cutouts.Type: GrantFiled: January 28, 2016Date of Patent: July 17, 2018Assignees: OTICS CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Naoki Hiramatsu, Koki Yamaguchi, Masahide Sakurai, Motohiro Yuge, Masaaki Tani
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Patent number: 9879577Abstract: A variable valve mechanism of an internal combustion engine includes a plurality of swing members and a variable device that displaces a control shaft to displace a plurality of slider gears of the swing members at a time, thereby changing valve lifts of the plurality of swing members at a time by meshing of helical splines. The swing members include a first swing member for a predetermined cylinder of a plurality of cylinders and a second swing member for a cylinder other than the predetermined cylinder, and a helix angle of the helical splines varies between the first and the second swing members. The variable device displaces the control shaft to a predetermined normal position to perform a normal operation, and displaces the control shaft to a predetermined cylinder cutoff position to perform a cylinder cutoff operation in which the second swing member does not drive a valve.Type: GrantFiled: March 24, 2016Date of Patent: January 30, 2018Assignees: OTICS CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Koki Yamaguchi, Naoki Hiramatsu, Takayuki Maezako, Masatoshi Sugiura, Shinichiro Kikuoka, Masaaki Tani, Motohiro Yuge
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Publication number: 20170292416Abstract: A variable valve mechanism includes a first cam and a second cam, a main arm that drives a valve when swinging, a first sub arm that swings when pressed by the first cam, a second sub arm that swings when pressed by the second cam, and a switch device. The switch device includes a first switch pin that moves between a first coupled position between the main arm and the first sub arm and a first uncoupled position, and a second switch pin that moves between a second coupled position between the main arm and the second sub arm and a second uncoupled position. Both switch pins are arranged so as to be displaced from each other in positions where these switch pins do not overlap at least during a base circle phase in which base circles of both cams act.Type: ApplicationFiled: March 24, 2017Publication date: October 12, 2017Inventors: Masatoshi SUGIURA, Naoki Hiramatsu
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Patent number: 9732641Abstract: The present invention provides a variable valve mechanism of an internal combustion engine, which includes a rocker arm that includes a roller arm including a roller that rotatably abuts against a cam and a side arm provided at a side of the roller arm and that drives a valve, and a switching device that includes a switching pin and a hydraulic chamber provided inside the rocker arm and that switches a drive state of the valve by displacing the switching pin between a coupling position at which the switching pin extends between the roller arm and the side arm and a non-coupling position at which the switching pin does not extend between the roller arm and the side arm based on variations in hydraulic pressure in the hydraulic chamber. The switching pin is provided on an axis of the roller, and the hydraulic chamber is provided inside the roller arm.Type: GrantFiled: September 16, 2015Date of Patent: August 15, 2017Assignee: OTICS CORPORATIONInventors: Masatoshi Sugiura, Koki Yamaguchi, Naoki Hiramatsu
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Publication number: 20170218795Abstract: A variable valve mechanism of an internal combustion engine includes a cam, a transmission mechanism, a first variable device that controls the transmission mechanism to continuously change at least a maximum lift amount of a lift curve indicating a lift amount of a valve that corresponds to a rotation angle of the internal combustion engine, and a second variable device that controls the transmission mechanism to continuously change at least an operation angle of the lift curve. When the lift curve lies in any condition within a predetermined range that covers all or part of a variable range of the lift curve, an absolute value of a ratio of a maximum lift amount variation to an operation angle variation for a slight change from the condition caused by the first variable device is larger than that for a slight change from the condition caused by the second variable device.Type: ApplicationFiled: November 30, 2016Publication date: August 3, 2017Inventors: Koki YAMAGUCHI, Naoki HIRAMATSU, Masatoshi SUGIURA
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Patent number: 9556762Abstract: The present invention provides a variable valve mechanism of an internal combustion engine, which includes a rocker arm that is swingably supported by a single pivot, and a switching device that operates the rocker arm to switch a drive state of the valve, in which the rocker arm is configured such that at least in a predetermined drive state, a pressing force of the cam is applied disproportionately to one side of the rocker arm in a width direction with respect to a center line when the cam presses a portion of the rocker arm located away from the center line in the width direction. The variable valve mechanism further includes a swing guide that abuts against the rocker arm so that the rocker arm is guided in a swing direction so as not to be tilted in the width direction.Type: GrantFiled: March 19, 2015Date of Patent: January 31, 2017Assignee: OTICS CORPORATIONInventors: Masatoshi Sugiura, Naoki Hiramatsu, Koki Yamaguchi
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Publication number: 20170016361Abstract: In a variable valve mechanism of an internal combustion engine, when a slider is displaced relative to an input member and an output member in an axial direction, the output member turns relative to the input member in a swing direction, whereby a lift of a valve is increased or reduced. The variable valve mechanism is brought into a lift retaining state when the slider is placed in an idle running range located on a reducing direction side with respect to a boundary position. The lift retaining state is a state where when the slider is displaced in the axial direction, the input member and the output member are displaced together with the slider in the axial direction, so that the relative displacement of the slider and the relative turning of the output member do not occur and the lift of the valve is retained.Type: ApplicationFiled: June 3, 2016Publication date: January 19, 2017Inventors: Naoki HIRAMATSU, Masatoshi SUGIURA, Koki YAMAGUCHI, Motohiro YUGE
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Patent number: 9540969Abstract: The present invention provides a variable valve mechanism, which includes a rocker arm including an input member and an output member; a switching device that switches a drive state of the valve by displacing the switching pin between a coupling position at which the switching pin extends between the first pinhole in the input member and the second pin hole in the output member and a non-coupling position at which the switching pin does not extend; and a lost motion spring. A displacement clearance is formed between an inner peripheral surface of the first or second pin hole and an outer peripheral surface of the switching pin to permit the relative displacement in a range of the displacement clearance at a coupled time so that a tappet clearance is not formed with the input member urged toward the cam by the lost motion spring.Type: GrantFiled: September 16, 2015Date of Patent: January 10, 2017Assignee: OTICS CORPORATIONInventors: Koki Yamaguchi, Masatoshi Sugiura, Naoki Hiramatsu