Patents by Inventor Yoshikazu Hattori
Yoshikazu Hattori 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: 20230373497Abstract: A wheel load estimation device includes an obtaining unit obtaining angular velocities and angular accelerations of a rigid body including an element, accelerations of the rigid body in a front-rear direction and in a lateral direction, a weight of the element, and a position including a height of the element. The element fluctuates a center of gravity of the rigid body. A center-of-gravity inertia value calculation unit calculates information relevant to the center of gravity of the rigid body and an inertia value. A wheel load variation calculation unit calculates variation amounts of wheel loads that each act on a corresponding one of a plurality of wheels supporting the rigid body. A wheel load estimation unit estimates the wheel loads.Type: ApplicationFiled: July 28, 2021Publication date: November 23, 2023Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Tatsuya HATTORI, Hiroyuki YAMAGUCHI, Daiki MORI, Yoshikazu HATTORI, Noriyoshi SUZUKI
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Patent number: 11451457Abstract: A sensor delay time estimation device that includes: a memory; and a processor coupled to the memory, wherein the processor is configured to: acquire an observable required to estimate a vehicle state from a plurality of sensors that detect and output the observable, each of the plurality of sensors being different, and based on the observable for a fixed time interval acquired from each of the plurality of sensors, estimate a time delay from detection to acquisition of the observable for each of the plurality of sensors, and estimate a vehicle state for the fixed time interval.Type: GrantFiled: December 14, 2020Date of Patent: September 20, 2022Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Daiki Mori, Yoshikazu Hattori, Hideki Sugiura
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Publication number: 20220289208Abstract: A vehicle control device including a motion condition detector detecting motion conditions including a rotational motion and a longitudinal acceleration of a vehicle on which a load is to be loaded, a wheel load acquisition unit acquiring wheel loads of wheels, a loading state acquisition unit acquiring a loading state of the load loaded on the vehicle, an inertia value calculator calculating an inertia value including principal axes of inertia about a center of gravity of the vehicle with the load included, based on the acquired loading state, and a controller performing overturning prevention control that suppresses an increase in difference between the wheel loads of front and rear wheels of the vehicle, using the acquired wheel loads of the wheels, the inertia value, and detection values of the motion conditions.Type: ApplicationFiled: March 10, 2022Publication date: September 15, 2022Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Tatsuya HATTORI, Hiroyuki YAMAGUCHI, Yoshikazu HATTORI, Masateru AMANO, Noriyoshi SUZUKI
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Patent number: 11441905Abstract: An inertial navigation device that includes a processor that is configured to: assume a vertical velocity and a lateral velocity of a vehicle to be 0, and estimate a roll angle, a pitch angle and an azimuth angle, which are attitude angles of the vehicle, based on angular velocities and accelerations detected by the inertial measurement device, a longitudinal velocity detected by a vehicle velocity sensor, and an initial value of the azimuth angle of the vehicle, and assume the vertical velocity of the vehicle to be 0, and estimate a current position of the vehicle based on the estimated attitude angles, the angular velocities and the accelerations detected by the inertial measurement device, the longitudinal velocity detected by the vehicle velocity sensor, a steering angle detected by a steering angle sensor, and an initial value of a position of the vehicle.Type: GrantFiled: December 31, 2019Date of Patent: September 13, 2022Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Daiki Mori, Yoshikazu Hattori, Hideki Sugiura, Hiroyuki Yamaguchi
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Publication number: 20210398044Abstract: A production assistance system which generates steps for producing a product on the basis of an order including information which should specify the product to be produced, a quantity or count by which the product is to be produced, and a due date by which the production is to be completed is provided with an input unit for inputting the order; a schedule computation unit for generating, on the basis of the order input by the input unit, a schedule including information relating to a plurality of operation machines required to produce a product specified by the order, steps assigned to the respective operation machines, and a time required to execute each of the steps; a step division information providing unit for dividing the steps of the generated schedule into a plurality of tasks as information which can be interpreted and executed by the operation machines; and a step instruction unit for outputting instructions to the operation machines on the basis of the tasks from the step division information proviType: ApplicationFiled: October 31, 2018Publication date: December 23, 2021Applicant: MAKINO MILLING MACHINE CO., LTD.Inventors: Yoshikazu HATTORI, Shinji IGARI, Takumi KODAMA, Wataru ARAI
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Publication number: 20210300382Abstract: A tire state estimating device includes an electronic control unit. The electronic control unit is configured to acquire generated force of a tire. The electronic control unit is configured to acquire a friction coefficient between the tire and a road surface. The electronic control unit is configured to derive a grip margin of the tire. The electronic control unit is configured to estimate a contact length of the tire in an uncontrolled drive state. The electronic control unit is configured to estimate a cornering power of the tire, based on the contact length of the tire that is estimated and the generated force of the tire that is acquired.Type: ApplicationFiled: March 29, 2021Publication date: September 30, 2021Applicant: JTEKT CORPORATIONInventors: Hiroyuki YAMAGUCHI, Hideki SUGIURA, Motohiro FUJIYOSHI, Yoshikazu HATTORI, Yuya INOUE, Yoichiro SANKAI, Mahito SHIBA, Takuya HONJYOU
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Publication number: 20210300183Abstract: An in-vehicle display apparatus includes: an image generating unit, an emitting unit, and a reflecting unit. The image generating unit generates, for display information that is presented to a user, an image that includes a right-eye image and a left-eye image with a parallax. The emitting unit emits a projection light that is a light flux that contains the image. The reflecting unit reflects the projection light and forms a stereoscopic image that is superimposed on an outside view. The image generating unit generates the image in which a fusion distance of the stereoscopic image of the display information is changed, within a predetermined period of time, from a current visual distance to a target distance at which the display information is to be ultimately displayed.Type: ApplicationFiled: March 26, 2021Publication date: September 30, 2021Inventors: Toshiyuki KONDO, Fumihiko MURASE, Masaaki HIROSE, Kazunori HIGUCHI, Yuji MURAGISHI, Toshiyuki TAGUCHI, Yoshikazu HATTORI
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Publication number: 20210300112Abstract: An upright includes an axle hub, a hub carrier, and a hub tilt detector configured to detect a tilt of the axle hub with respect to the hub carrier. The hub carrier includes a hub support that supports the axle hub, a carrier body which holds the hub support and to which the sensor of the hub tilt detector is fixed, and a deformation member interposed between the hub support and the carrier body and made of a material having a lower Young's modulus than the carrier body.Type: ApplicationFiled: March 24, 2021Publication date: September 30, 2021Applicant: JTEKT CORPORATIONInventors: Motohiro FUJIYOSHI, Hideki SUGIURA, Hiroyuki YAMAGUCHI, Yoshikazu HATTORI, Yuya INOUE, Yoichiro SANKAI, Mahito SHIBA, Takuya HONJYOU
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Publication number: 20210306243Abstract: A sensor delay time estimation device that includes: a memory; and a processor coupled to the memory, wherein the processor is configured to: acquire an observable required to estimate a vehicle state from a plurality of sensors that detect and output the observable, each of the plurality of sensors being different, and based on the observable for a fixed time interval acquired from each of the plurality of sensors, estimate a time delay from detection to acquisition of the observable for each of the plurality of sensors, and estimate a vehicle state for the fixed time interval.Type: ApplicationFiled: December 14, 2020Publication date: September 30, 2021Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Daiki MORI, Yoshikazu HATTORI, Hideki SUGIURA
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Patent number: 10949996Abstract: A self-position estimation apparatus includes an image capturing unit capturing driving images and reference images at a plurality of positions along a predetermined driving route, a detection unit detecting feature points on each of the driving images and feature points on each of the reference images, a storage unit storing map information which includes the feature points on each of the reference images and a position and a posture of the image capturing unit at a time each of the reference images is captured by the image capturing unit, and an estimation unit selecting a similar image similar to one of the driving images from the reference images to correlate the feature points on the one of the driving images and feature points on the similar image, the estimation unit estimating a position and a posture of an own vehicle a predetermined driving route based on a correlation result.Type: GrantFiled: January 15, 2019Date of Patent: March 16, 2021Assignee: AISIN SEIKI KABUSHIKI KAISHAInventors: Shoji Asai, Shu Asami, Yoshikazu Hattori, Hiroshi Ishiguro, Kazutaka Hayakawa, Takashi Suzuki
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Publication number: 20200318971Abstract: An inertial navigation device that includes a processor that is configured to: assume a vertical velocity and a lateral velocity of a vehicle to be 0, and estimate a roll angle, a pitch angle and an azimuth angle, which are attitude angles of the vehicle, based on angular velocities and accelerations detected by the inertial measurement device, a longitudinal velocity detected by a vehicle velocity sensor, and an initial value of the azimuth angle of the vehicle, and assume the vertical velocity of the vehicle to be 0, and estimate a current position of the vehicle based on the estimated attitude angles, the angular velocities and the accelerations detected by the inertial measurement device, the longitudinal velocity detected by the vehicle velocity sensor, a steering angle detected by a steering angle sensor, and an initial value of a position of the vehicle.Type: ApplicationFiled: December 31, 2019Publication date: October 8, 2020Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Daiki MORI, Yoshikazu HATTORI, Hideki SUGIURA, Hiroyuki YAMAGUCHI
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Publication number: 20190220997Abstract: A self-position estimation apparatus includes an image capturing unit capturing driving images and reference images at a plurality of positions along a predetermined driving route, a detection unit detecting feature points on each of the driving images and feature points on each of the reference images, a storage unit storing map information which includes the feature points on each of the reference images and a position and a posture of the image capturing unit at a time each of the reference images is captured by the image capturing unit, and an estimation unit selecting a similar image similar to one of the driving images from the reference images to correlate the feature points on the one of the driving images and feature points on the similar image, the estimation unit estimating a position and a posture of an own vehicle a predetermined driving route based on a correlation result.Type: ApplicationFiled: January 15, 2019Publication date: July 18, 2019Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Shoji ASAI, Shu ASAMI, Yoshikazu HATTORI, Hiroshi ISHIGURO, Kazutaka HAYAKAWA, Takashi SUZUKI
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Patent number: 10180675Abstract: A machine tool for machining a workpiece includes a control device for moving a rotating tool relative to the workpiece. The device includes an input information-reading unit and a path-setting unit. The input information-reading unit reads input information, which relates to a path along the contour of the workpiece or the tool path of a first rotating tool that follows the external form of the workpiece. The path-setting unit converts the input information read by the input information-reading unit to generate a tool path for performing the machining using the end cutting edge of a second rotating tool.Type: GrantFiled: October 31, 2012Date of Patent: January 15, 2019Assignee: MAKINO MILLING MACHINE CO., LTD.Inventors: Junichi Maeda, Yasunori Masumiya, Yoshikazu Hattori
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Publication number: 20150293519Abstract: A control device for a machine tool for machining a workpiece while moving a rotating tool relative to the workpiece, the device being provided with: an input information-reading unit for reading input information, which comprises a path along the contour of the workpiece or the tool path of a first rotating tool that follows the external form of the workpiece; and a path-setting unit for converting the input information read by the input information-reading unit to generate a tool path for performing the machining using the end cutting edge of a second rotating tool.Type: ApplicationFiled: October 31, 2012Publication date: October 15, 2015Applicant: MAKINO MILLING MACHINE CO., LTD.Inventors: Junichi MAEDA, Yasunori MASUMIYA, Yoshikazu HATTORI
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Patent number: 8757899Abstract: An optical connector assembly includes: an optical connector having a connection portion at a top end thereof, the connection portion being connected to an optical module, the optical connector having a latch and a lever disposed on a side surface thereof, the latch securing connection between the optical connector and the optical module, the lever releasing the latch; a housing having a through-hole that incorporates the optical connector therein and an opening that is formed at a position at which part of the lever of the optical connector protrudes through the opening, the opening communicating with the through-hole; and a cover having the housing disposed therein, the cover having a plate-like protruding portion on an inner wall thereof, the protruding portion protruding toward the housing; wherein when the protruding portion is located at a position of the opening, the protruding portion presses the lever.Type: GrantFiled: September 9, 2011Date of Patent: June 24, 2014Assignee: Fujitsu LimitedInventor: Yoshikazu Hattori
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Patent number: 8738234Abstract: A vehicle control device includes travel condition detection devices configured to detect conditions around a vehicle and performs travel control of the vehicle according to the conditions around the vehicle by controlling a plurality of actuators according to information detected by the travel condition detection devices. The vehicle control device has a plurality of the travel condition detection devices. A control amount of at least one of the actuators, from among the plurality of actuators, is restricted according to reliability of a plurality of pieces of the information detected by the plurality of travel condition detection devices.Type: GrantFiled: February 25, 2011Date of Patent: May 27, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Yoshiaki Irie, Yoshiko Kojima, Junichi Meguro, Kojiro Takeyama, Yoshikazu Hattori
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Patent number: 8509277Abstract: A multiwavelength optical device includes a substrate; a first mirror section including a plurality of first mirror layers stacked on the substrate; an active layer stacked on the first mirror section, the active layer including a light emission portion; a second mirror section including a plurality of second mirror layers stacked on the active layer; a first electrode disposed between the active layer and the second mirror section; and a second electrode disposed between the first mirror section and the active layer.Type: GrantFiled: February 23, 2010Date of Patent: August 13, 2013Assignee: Fujitsu LimitedInventor: Yoshikazu Hattori
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Publication number: 20120323473Abstract: A vehicle control device includes travel condition detection means for detecting conditions around a vehicle and performs travel control of the vehicle according to the conditions around the vehicle by controlling a plurality of actuators according to information detected by the travel condition detection means. The vehicle control device has a plurality of the travel condition detection means. A control amount of at least one of the actuators, from among the plurality of actuators, is restricted according to reliability of a plurality of pieces of the information detected by the plurality of travel condition detection means.Type: ApplicationFiled: February 25, 2011Publication date: December 20, 2012Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yoshiaki Irie, Yoshiko Kojima, Junichi Meguro, Kojiro Takeyama, Yoshikazu Hattori
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Patent number: 8301353Abstract: A vehicle motion control device and method computes a size of a using friction circle in each of wheels by multiplying a size of an each wheel friction circle indicating a maximum generating force in each of the wheel tires by a previously computed each wheel using percentage, computes the each wheel tire generating force and the each wheel using percentage indicating a rate with respect to an upper limit value of a ?-using efficiency in each of the wheels, and controls a vehicle motion in such a manner that the computed each wheel tire generating force is obtained on the basis of the computed each wheel tire generating force, thereby minimizing an upper limit of the ?-using efficiency in each of the wheels.Type: GrantFiled: March 29, 2007Date of Patent: October 30, 2012Assignees: Kabushiki Kaisha Toyota Chuo Kenkyusho, Toyota Jidosha Kabushiki Kaisha, JTEKT CorporationInventors: Eiichi Ono, Yoshikazu Hattori
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Publication number: 20120076463Abstract: An optical connector assembly includes: an optical connector having a connection portion at a top end thereof, the connection portion being connected to an optical module, the optical connector having a latch and a lever disposed on a side surface thereof, the latch securing connection between the optical connector and the optical module, the lever releasing the latch; a housing having a through-hole that incorporates the optical connector therein and an opening that is formed at a position at which part of the lever of the optical connector protrudes through the opening, the opening communicating with the through-hole; and a cover having the housing disposed therein, the cover having a plate-like protruding portion on an inner wall thereof, the protruding portion protruding toward the housing; wherein when the protruding portion is located at a position of the opening, the protruding portion presses the lever.Type: ApplicationFiled: September 9, 2011Publication date: March 29, 2012Applicant: FUJITSU LIMITEDInventor: Yoshikazu HATTORI