Patents by Inventor Yusuke Sugita

Yusuke Sugita 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).

  • Patent number: 12373514
    Abstract: Provided is an optimization method including executing a ground state search for an interaction model by a ground state search in a surrogate interaction model including D (D is a natural number of three or more) variable groups each having N continuous variables by using an information processing apparatus, the interaction model having a third-order or higher-order energy function including N (N is a natural number) continuous variables and discrete variables. The ground state search is executed based on simulated annealing. An interaction relation of the surrogate interaction model has a complete D-part graph structure. A coupling is set between i-th variable pairs in the respective variable groups of the surrogate interaction model. The information processing apparatus is operated to simultaneously update all variables of one variable group from among the D variable groups when performing a state transition in the surrogate interaction model.
    Type: Grant
    Filed: August 11, 2021
    Date of Patent: July 29, 2025
    Assignee: HITACHI VANTARA, LTD.
    Inventors: Yusuke Sugita, Takuya Okuyama, Masanao Yamaoka
  • Publication number: 20250238478
    Abstract: An annealing unit performs a first search for an annealing solution to lower an objective function value in the vicinity of a constraint satisfaction solution, by using a first solver. A constraint logic unit performs a second search for a constraint satisfaction solution in the vicinity of an annealing solution obtained by the annealing unit, by using a second solver, and performs iterative processing of the first search and the second search to obtain an optimum solution.
    Type: Application
    Filed: September 11, 2024
    Publication date: July 24, 2025
    Applicant: Hitachi Vantara, Ltd.
    Inventors: Kazuo ONO, Yusuke SUGITA
  • Publication number: 20250053610
    Abstract: A simulation apparatus is an apparatus that obtains a solution of a combinatorial optimization problem by SA, in which a local optimal solution of an objective function is acquired by using a local search method of changing a temperature parameter, a statistic is calculated based on the local optimal solution and a probability distribution function of a variable included in the objective function, a maximum value (temperature parameter when a standard deviation related to a state of the local optimal solution is large) and a minimum value (temperature parameter when the standard deviation is small) as a search range for the temperature parameter are obtained based on the calculated statistic (standard deviation), and a good solution is obtained by executing the simulated annealing a plurality of times in the search range having the maximum value and the minimum value for the temperature parameter.
    Type: Application
    Filed: March 4, 2024
    Publication date: February 13, 2025
    Inventor: Yusuke SUGITA
  • Publication number: 20240232290
    Abstract: An object is to efficiently solve a quadratic programming problem having a k-hot constraint (k is a positive integer) for binary variables. A preferred aspect of the invention is an optimization method for, using an information processing apparatus, solving a quadratic programming problem in which one or more independent k-hot constraints are imposed on binary variables, the information processing apparatus including a processor, a storage device, an input device, and an output device. The information processing apparatus relaxes the binary variables into continuous values by adding correction values to a nonlinear coefficients of the binary variables on which the k-hot constraints are imposed, and the information processing apparatus executes a solution search while satisfying the k-hot constraints by executing a state transition such that a sum of a set of continuous variables on which the k-hot constraint is imposed is constant.
    Type: Application
    Filed: September 15, 2023
    Publication date: July 11, 2024
    Inventors: Yusuke SUGITA, Nobuo BENIYAMA, Masanao YAMAOKA
  • Publication number: 20230153376
    Abstract: Provided are an optimization method, an information processing device, and an information processing system capable of efficiently performing a ground state search of a constrained binary quadratic model. The information processing device performs the ground state search for the constrained binary quadratic model by substituting the ground state search for the binary quadratic model in which the interaction relationship between variables has a complete bipartite graph structure. Here, this information processing device divides the variable group corresponding to the vertex set divided into two in the complete bipartite graph into a group capable of updating the state in which the constraint is satisfied. Then, this information processing device can update the group of each variable group in parallel based on the information of the energy function and the variable, and execute the process of searching the ground state.
    Type: Application
    Filed: August 25, 2022
    Publication date: May 18, 2023
    Inventors: Yusuke SUGITA, Takuya OKUYAMA
  • Publication number: 20220308837
    Abstract: Provided is an optimization method including executing a ground state search for an interaction model by a ground state search in a surrogate interaction model including D (D is a natural number of three or more) variable groups each having N continuous variables by using an information processing apparatus, the interaction model having a third-order or higher-order energy function including N (N is a natural number) continuous variables and discrete variables. The ground state search is executed based on simulated annealing. An interaction relation of the surrogate interaction model has a complete D-part graph structure. A coupling is set between i-th variable pairs in the respective variable groups of the surrogate interaction model. The information processing apparatus is operated to simultaneously update all variables of one variable group from among the D variable groups when performing a state transition in the surrogate interaction model.
    Type: Application
    Filed: August 11, 2021
    Publication date: September 29, 2022
    Inventors: Yusuke SUGITA, Takuya OKUYAMA, Masanao YAMAOKA
  • Patent number: 10093162
    Abstract: A suspension system for an engine includes an engine mount and an electronic control unit. The engine mount has spring characteristics that are switchable between first spring characteristics and second spring characteristics. The electronic control unit is configured to switch the spring characteristics of the engine mount to the first spring characteristics when the rotational speed of the engine is lower than a predetermined rotational speed, and torque of the engine is equal to or larger than a predetermined torque. The electronic control unit is configured to switch the spring characteristics of the engine mount to the second spring characteristics when the rotational speed of the engine is lower than the predetermined rotational speed, and the torque of the engine is smaller than the predetermined torque.
    Type: Grant
    Filed: February 10, 2016
    Date of Patent: October 9, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yusuke Sugita, Hideki Murata, Nobuya Yoshida, Hiroshi Miya
  • Patent number: 9554035
    Abstract: There is provided an image pickup device including: a composition detection unit configured to calculate a time at which an object that is specified by a user and is included in a captured image achieves a composition specified by the user; a time calculation unit configured to calculate a time after start instruction of image pickup operation is issued but before an image is captured; and an image pickup control unit configured to start image pickup processing of the image in response to the start instruction of the image pickup operation. The composition detection unit issues the start instruction of the image pickup operation to the image pickup control unit the time calculated by the time calculation unit before the time at which the composition specified by the user is achieved.
    Type: Grant
    Filed: January 22, 2014
    Date of Patent: January 24, 2017
    Assignee: SONY CORPORATION
    Inventor: Yusuke Sugita
  • Publication number: 20160236560
    Abstract: A suspension system for an engine includes an engine mount and an electronic control unit. The engine mount has spring characteristics that are switchable between first spring characteristics and second spring characteristics. The electronic control unit is configured to switch the spring characteristics of the engine mount to the first spring characteristics when the rotational speed of the engine is lower than a predetermined rotational speed, and torque of the engine is equal to or larger than a predetermined torque. The electronic control unit is configured to switch the spring characteristics of the engine mount to the second spring characteristics when the rotational speed of the engine is lower than the predetermined rotational speed, and the torque of the engine is smaller than the predetermined torque.
    Type: Application
    Filed: February 10, 2016
    Publication date: August 18, 2016
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yusuke SUGITA, Hideki MURATA, Nobuya YOSHIDA, Hiroshi MIYA
  • Publication number: 20150373260
    Abstract: There is provided an image pickup device including: a composition detection unit configured to calculate a time at which an object that is specified by a user and is included in a captured image achieves a composition specified by the user; a time calculation unit configured to calculate a time after start instruction of image pickup operation is issued but before an image is captured; and an image pickup control unit configured to start image pickup processing of the image in response to the start instruction of the image pickup operation. The composition detection unit issues the start instruction of the image pickup operation to the image pickup control unit the time calculated by the time calculation unit before the time at which the composition specified by the user is achieved.
    Type: Application
    Filed: January 22, 2014
    Publication date: December 24, 2015
    Applicant: SONY CORPORATION
    Inventor: Yusuke SUGITA
  • Patent number: 8768063
    Abstract: An image processing apparatus includes: face detection means for detecting a subject face contained in each of images continuously captured by capturing means and extracting attribute information on each detected face; score determination means for determining a score for each of the continuously captured images on the basis of the attribute information on the detected face extracted by the face detection means; and representative image selection means for selecting a representative image from the continuously captured images on the basis of the score determined by the score determination means.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: July 1, 2014
    Assignee: Sony Corporation
    Inventor: Yusuke Sugita
  • Publication number: 20100189356
    Abstract: An image processing apparatus includes: face detection means for detecting a subject face contained in each of images continuously captured by capturing means and extracting attribute information on each detected face; score determination means for determining a score for each of the continuously captured images on the basis of the attribute information on the detected face extracted by the face detection means; and representative image selection means for selecting a representative image from the continuously captured images on the basis of the score determined by the score determination means.
    Type: Application
    Filed: December 18, 2009
    Publication date: July 29, 2010
    Applicant: SONY CORPORATION
    Inventor: Yusuke SUGITA
  • Publication number: 20040091632
    Abstract: The present invention relates to a process for coating a polyolefin or metal substrate by coating a polyolefin or metal substrate with a composition containing urethane (meth)acrylic resin [A] obtained by reacting a diisocyanate trimer (a1) and (meth)acrylate containing a hydroxyl group (a2) and exposing radiation to cure the coated surface, in which the composition containing urethane (meth)acrylic resin [A] contains a compound having a carboxyl group. Also, the present invention relates to a laminate having a layer structure of a top coat layer, a layer of a composition containing urethane (meth)acrylic resin [A], obtained by reacting a diisocyanate trimer (a1) and (meth)acrylate containing a hydroxyl group (a2), and a polyolefin layer.
    Type: Application
    Filed: September 25, 2003
    Publication date: May 13, 2004
    Inventors: Hitoshi Matsunami, Yusuke Sugita, Mamoru Akiyama