Patents by Inventor Takuya TAKAYAMA

Takuya TAKAYAMA 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).

  • Publication number: 20240201323
    Abstract: A vehicle radar apparatus detects a position and a velocity of a target object. The radar apparatus selects, as a relay reflection target object, a moving body capable of relaying transmission and reception of the radar wave to and from another target object, from target objects detected. The radar apparatus sets a multipath ghost condition indicating the position and the velocity of the target object erroneously detected as a result of a stationary object to which the radar wave is relayed by the relay reflection target object, based on the position and the velocity of the relay reflection target object and the velocity of an own vehicle. The radar apparatus extracts a target object that meets the multipath ghost condition from the detected target objects, determines that the extracted target object is a multipath ghost, and restricts output of a detection result from the radar apparatus to an external apparatus.
    Type: Application
    Filed: February 28, 2024
    Publication date: June 20, 2024
    Inventors: Yasuhiro KURONO, Yutaka HASEGAWA, Takuya TAKAYAMA
  • Publication number: 20240192302
    Abstract: A radar system of one aspect of the present disclosure includes a plurality of transmitting antennas, a plurality of receiving antennas, an azimuth estimation unit, a restoration unit (S30), an error calculation unit, and a false azimuth determination unit. The azimuth estimation unit estimates an azimuth of a target based on a first received signal received by a virtual array. The restoration unit calculates a second received signal from an estimated power of the first received signal which corresponds to a signal restored from the first received signal, assuming that the transmitting azimuth is the same as an arrival azimuth. The false azimuth determination unit determines that the estimated azimuth is a false azimuth when the errors between the first received signal and the second received signal are larger than a determination threshold.
    Type: Application
    Filed: February 22, 2024
    Publication date: June 13, 2024
    Inventors: Yasuhiro KURONO, Takuya TAKAYAMA, Yutaka HASEGAWA
  • Publication number: 20240182258
    Abstract: A sheet folding apparatus includes a conveyor, a first folding roller, a second folding roller, a third folding roller, a guide, a motor, and a driving force transmission mechanism. The motor causes the second folding roller to perform either forward rotation in which the second folding roller rotates to convey a sheet on a main conveying path in a conveying direction and to convey the sheet on a reflux conveying path from a joining position toward a branching position or backward rotation in a direction opposite to the forward rotation. The driving force transmission mechanism rotates the guide toward a first posture from a second posture in conjunction with the forward rotation of the second folding roller and rotates the guide from the first posture toward the second posture in conjunction with the backward rotation of the second folding roller.
    Type: Application
    Filed: December 5, 2023
    Publication date: June 6, 2024
    Inventors: Yuusuke SHIBASAKI, Yusuke HIRONO, Atsushi SHINODA, Shuuto TOHKAISHI, Satoshi HIRATA, Shingo YOSHIZAWA, Suzuka FUJITA, Naofumi YOSHIDA, Ryota TAKAYAMA, Takahiro WATANABE, Takuya MORINAGA, Yuji SUZUKI, Wataru NOZAKI, Kanako FUJISAKI, Jun YAMADA
  • Publication number: 20240183015
    Abstract: This steel sheet for hot stamping has a predetermined chemical composition and has a microstructure in which S?+SGB, which is a total of an area ratio S? of ferrite and an area ratio SGB of a granular bainite, is 10% or more and less than 50% and SGB/S?, which is a ratio between the area ratio SGB of the granular bainite and the area ratio S? of the ferrite, is 0.30 to 0.70. In addition, a hot-stamping formed body manufactured using this steel sheet for hot stamping has a predetermined chemical composition and a microstructure in which an average grain size of prior austenite grains is 5 to 25 ?m, and a standard deviation of grain sizes of the prior austenite grains is 0.1 to 2.0 ?m, and a tensile strength of the hot-stamping formed body is 2,200 MPa or more.
    Type: Application
    Filed: May 9, 2022
    Publication date: June 6, 2024
    Applicant: NIPPON STEEL CORPORATION
    Inventors: Yuri TODA, Daisuke MAEDA, Tamaki SUZUKI, Yuma ASADA, Takuya TAKAYAMA
  • Patent number: 11994577
    Abstract: In an object tracking device, a candidate generator is configured to, given P=Kmax?Kmin+1 that defines a range of foldings of velocity by phase rotation from Kminth to Kmaxth foldings, calculate P velocity estimates for each of initial observation points. The candidate generator sets the number of foldings Kmin and the number of foldings Kmax such that Kmin<0 and |Kmin|>|Kmax| when an absolute value of an observation angle representing a direction of the observation point is equal to or less than a first threshold value, and Kmax>0 and |Kmin|<|Kmax| when the absolute value of the observation angle is greater than a second threshold. A velocity determiner is configured to, for each set of candidate targets, select one of the candidate targets belonging to the set of candidate targets, thereby determining the velocity of a target associated with the initial observation point.
    Type: Grant
    Filed: September 13, 2021
    Date of Patent: May 28, 2024
    Assignee: DENSO CORPORATION
    Inventors: Yusuke Akamine, Takuya Takayama
  • Publication number: 20240168150
    Abstract: A radar device for a vehicle includes a frequency analysis unit, a peak information acquisition unit, and a rainfall determination unit. The frequency analysis unit performs a two-dimensional fast Fourier transform on a beat signal, and the peak information acquisition unit extracts, from peaks of a power spectrum calculated by the two-dimensional fast Fourier transform, peaks within a predefined distance-velocity region preset as a raindrop condition, and acquire peak information. The rainfall determination unit determines whether a surrounding environment of the vehicle has rainfall, based on the peak information acquired by the peak information acquisition unit.
    Type: Application
    Filed: January 29, 2024
    Publication date: May 23, 2024
    Inventors: Yasuhiro KURONO, Takuya TAKAYAMA
  • Publication number: 20240124963
    Abstract: An objective of the present invention is to provide a steel sheet having a high strength which can provide excellent appearance quality. The steel sheet has a chemical composition including, in mass %, C: more than 0.030% to 0.145%, Si: 0% to 0.500%, Mn: 0.50% to 2.50%, P: 0% to 0.100%, S: 0% to 0.020%, Al: 0% to 1.000% or less, N: 0% to 0.0100%, and the like, wherein a metal micro-structures consisting of 70 to 95% of ferrite in volume fraction and 5 to 30% of hard phases in volume fraction, and a value X1 obtained by dividing a standard deviation of average Mn concentrations in a rolling direction at ¼ sheet-thickness positions in a sheet thickness direction by an average Mn concentration at the ¼ sheet-thickness positions is 0.025 or less.
    Type: Application
    Filed: February 25, 2022
    Publication date: April 18, 2024
    Applicant: NIPPON STEEL CORPORATION
    Inventors: Satoshi HIRONAKA, Mai NAGANO, Yasuhiro ITO, Takuya TAKAYAMA
  • Patent number: 11948823
    Abstract: A substrate treating apparatus includes a carrier platform, a transport mechanism, and a controller. The carrier platform places a carrier thereon. The carrier includes a plurality of shelves arranged in an up-down direction. The shelves are each configured to place one substrate thereon in a horizontal posture. The transport mechanism is configured to transport a substrate to a carrier placed on the carrier platform. The controller controls the transport mechanism. The transport mechanism includes a hand and a hand driving unit. The hand supports a substrate. The hand driving unit moves the hand. The controller changes a height position of the hand when the hand is inserted between two of the shelves adjacent to each other in the up-down direction, depending on a shape of a substrate taken from or placed on one of the shelves by the transport mechanism.
    Type: Grant
    Filed: October 31, 2022
    Date of Patent: April 2, 2024
    Assignee: SCREEN Holdings Co., Ltd.
    Inventors: Yuichi Takayama, Kazuhiko Nakazawa, Hiromichi Kaba, Toshihito Morioka, Takuya Sato
  • Publication number: 20240083035
    Abstract: A robot system includes a control device configured or programmed to evaluate a plurality of generated holding posture candidates based on an index including difficulty of interference of at least one of a robot arm or a hand with a surrounding object at a time at which a workpiece is held and generate a movement path.
    Type: Application
    Filed: June 18, 2021
    Publication date: March 14, 2024
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Takuya SHITAKA, Yuki TAKAYAMA, Shinpei ITO, Kippei MATSUDA, Toshiyuki HOMMA
  • Patent number: 11802952
    Abstract: The position detecting apparatus repeatedly acquires, from a radar apparatus, object information including at least an object distance as a distance between the radar apparatus and a reflecting object and a relative speed between the radar apparatus and a reflecting object. The position detecting apparatus calculates a speed ratio as a ratio between the relative speed and the travelling speed. The position detecting apparatus calculates, based on the speed ratio, a projection distance between a projected position of the reflecting object projected onto a projection plane and a position of the radar apparatus on the projection plane, the projection plane having a predetermined angle with respect to a center axis indicating a direction along which the radar waves are transmitted by the radar apparatus and including the radar apparatus. The position detection apparatus calculates the position of the reflecting object based on the calculated projection distance.
    Type: Grant
    Filed: December 3, 2020
    Date of Patent: October 31, 2023
    Assignees: SOKEN, INC., DENSO CORPORATION
    Inventors: Katsuhiko Kondo, Takuya Takayama
  • Publication number: 20230305105
    Abstract: A signal processing apparatus is mounted in a moving body and performs a process for measuring an object present in a vicinity of the moving body. The apparatus sets an intensity threshold corresponding to an intensity distribution based on at least one measurement signal periodically generated, and extracts at least one target peak that is a peak that is greater than the intensity threshold in the intensity distribution, using an upper limit number set in advance as an upper limit. The apparatus stores, in a storage unit, the number of extracted peaks that is the number of the at least one target peak extracted, and sets the intensity threshold so as to suppress the number of the at least one target peak in a new intensity distribution from exceeding the upper limit number, based on the number of extracted peaks in a previous intensity distribution stored in the storage unit.
    Type: Application
    Filed: May 17, 2023
    Publication date: September 28, 2023
    Inventors: Yusuke AKAMINE, Takuya TAKAYAMA
  • Publication number: 20230258773
    Abstract: A radar apparatus, mounted to a vehicle, includes: a transmitting unit that transmits a transmission signal at a set repetition cycle; and a receiving unit that receives a reflection signal reflected by at least one object. The radar apparatus calculates a velocity residual of each of at least one target object, which is a difference between a velocity prediction value and a velocity measurement value. Based on a magnitude of variation in the velocity residual in time series of each of at least one target object, the radar apparatus calculates an evaluation value of each of at least one target object, which corresponds to a probability of each of at least one target object being a folding ghost. Based on the evaluation value of each of at least one target object, the radar apparatus determines whether each of at least one target object is a folding ghost.
    Type: Application
    Filed: April 17, 2023
    Publication date: August 17, 2023
    Inventors: Yusuke AKAMINE, Takuya TAKAYAMA
  • Publication number: 20230176186
    Abstract: An axial misalignment estimation apparatus calculates a first estimated speed ratio that is an estimated speed ratio calculated using an orientation angle that is corrected based on an axial misalignment angle estimated in measurement cycles up to a previous measurement cycle, and calculates at least one second estimated speed ratio that is the first estimated speed ratio presuming aliasing is present at the orientation angle. The axial misalignment estimation apparatus determines, for each stationary reflection point, whether aliasing is present at the orientation angle of the stationary reflection point based on the first estimated speed ratio and the at least one second estimated speed ratio, and corrects the orientation angle of the stationary reflection point in which aliasing is determined to be present, and estimates the axial misalignment angle based on the corrected orientation angle for the stationary reflection point of which the orientation angle is corrected.
    Type: Application
    Filed: February 2, 2023
    Publication date: June 8, 2023
    Inventors: Katsuhiko KONDO, Takuya TAKAYAMA
  • Publication number: 20230131287
    Abstract: A radar device according to one aspect of the present disclosure includes a transmitting antenna, a receiving antenna, a signal acquisition unit, an interference removing unit, a spectrum acquisition unit, a target extraction unit, and a first threshold calculation unit. The interference removing unit is configured to remove an interference signal from the amplitude signal acquired. The interference signal has an amplitude value exceeding a first threshold. The target extraction unit is configured to extract at least one target component exceeding a set second threshold from a frequency spectrum. The first threshold calculation unit is configured to calculate the first threshold using the at least one target component extracted.
    Type: Application
    Filed: December 22, 2022
    Publication date: April 27, 2023
    Inventor: Takuya TAKAYAMA
  • Publication number: 20230008853
    Abstract: An axis deviation angle estimation device estimates a vertical axis deviation angle of a radar device based on roadside object information including information on a plurality of reflection points on a roadside object and road surface information including information on a plurality of reflection points on a road surface. The vertical axis deviation angle is an angle of deviation of an actual mounting direction from a reference mounting direction in a vertical direction. The actual mounting direction is an actual direction of the radar device, and the reference mounting direction is a direction of the radar device when the radar device is mounted in a reference state.
    Type: Application
    Filed: September 15, 2022
    Publication date: January 12, 2023
    Inventors: Katsuhiko KONDO, Takuya TAKAYAMA
  • Patent number: 11448723
    Abstract: A transmission antenna unit includes transmission antennas arranged in a row along a predetermined array direction at a predetermined first interval. A reception antenna unit includes reception antennas arranged in a row along the array direction at a second interval set to differ from the first interval. The transmission antennas and the reception antennas form a virtual array in which virtual reception antennas are arranged in a row along the array direction. The first interval is equal to a multiplication value of a minimum interval being a minimum value of an arrangement interval of the virtual reception antennas and a first multiple being an integer of 2 or greater. The second interval is equal to a multiplication value of the minimum interval and a second multiple being an integer of 2 or greater and set to differ from the first multiple. The first and second multiples are coprime.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: September 20, 2022
    Assignee: DENSO CORPORATION
    Inventors: Takayuki Kitamura, Takuya Takayama, Kazuhiro Aoki
  • Patent number: 11400513
    Abstract: A continuous casting facility used for thin slab casting has a mold for casting molten steel, an immersion nozzle that supplies the molten steel into the mold, and an electromagnetic stirring device capable of providing a swirl flow at a molten steel surface in the mold, and a thickness DCu (mm) of a copper plate of a long side wall, a thickness T (mm) of a steel piece, a frequency f (Hz) of the electromagnetic stirring device, electric conductivity ? (S/m) of the molten steel, and electric conductivity ?Cu (S/m) of the copper plate of the long side wall are adjusted to satisfy the following formulae (1)-a and (1)-b: DCu<?(2/?Cu??)??(1)-a ?(1/2???)<T??(1)-b, where ?=2?f: angular velocity (rad/sec), and ?=4?×10?7: magnetic permeability in vacuum (N/A2).
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: August 2, 2022
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Hiroshi Harada, Kanoko Yamamoto, Takuya Takayama, Keita Ikeda, Yui Ito
  • Publication number: 20220236398
    Abstract: An object tracking apparatus acquires detection information from a sensor mounted to a moving body, detects an object, and calculates a distance, a relative velocity, and an orientation thereof. For the initially detected object, the apparatus calculates aliased velocities of which aliasing from the relative velocity is assumed, and generates target candidates corresponding to the aliased velocities. For each target candidate, the apparatus estimates a current state of the target candidate from a past state thereof and observation information, and selects the target candidate estimated to be a true target from the target candidates for the same object. The apparatus calculates, as a reference velocity, an aliased velocity of the relative velocity that is equal to or greater than a velocity lower-limit value and is most negative or smallest in magnitude. The apparatus calculates the aliased velocities being the reference velocity aliased 0 to n times in a positive direction.
    Type: Application
    Filed: April 13, 2022
    Publication date: July 28, 2022
    Inventors: Yusuke AKAMINE, Takuya TAKAYAMA
  • Publication number: 20220228862
    Abstract: This axial deviation estimating device estimates an axial deviation angle of a radar device mounted on a mobile body, and includes an acquiring unit, an extracting unit, a device-system coordinates unit, and an estimating unit. The estimating unit estimates an axial deviation angle using a relational expression. The relational expression is an expression that holds between at least one unknown parameter, which includes an axial deviation angle of a coordinate axis of the radar device about a target axis which is at least one of a horizontal axis and a traveling direction axis constituting the coordinate axes of the mobile body, and at least one element included in the device-system coordinates of a road surface reflection point.
    Type: Application
    Filed: April 7, 2022
    Publication date: July 21, 2022
    Inventors: Katsuhiko KONDO, Takuya TAKAYAMA
  • Publication number: 20220229168
    Abstract: An axial misalignment estimation apparatus, mounted in a moving body, acquires reflection point information for each of reflection points detected by a radar apparatus, extracts, from the reflection points, at least a single road-surface reflection point detected by reflection on a road surface, based on the reflection point information. Based on the reflection point information, the axial misalignment estimation apparatus identifies, for each road-surface reflection point, apparatus system coordinates based on coordinate axes of the radar apparatus, and estimates an axial misalignment angle and a height of the radar apparatus using a relational expression established between at least two unknown parameters and at least two elements included in the apparatus system coordinates of the road-surface reflection point. The unknown parameters include the axial misalignment angle being a misalignment angle of a coordinate axis of the radar apparatus around a target axis, and a mounting height of the radar apparatus.
    Type: Application
    Filed: April 7, 2022
    Publication date: July 21, 2022
    Inventors: Katsuhiko KONDO, Akiyoshi MIZUTANI, Takuya TAKAYAMA