Patents by Inventor Shinji Ito

Shinji Ito 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: 20240192041
    Abstract: A flow rate measurement device measures the flow rate of purge gas in a purge device configured to supply the purge gas to a container including a bottom lid configured to be attached to and detached from a container body. The flow rate measurement device includes: a base on which a flow-rate measurer is mounted; an engaged part provided in the base and configured to be engaged with the bottom lid; and a flow passage through which the purge gas injected from an injection port of the bottom lid is circulated to the flow-rate measurer when the engaged part is engaged with the bottom lid.
    Type: Application
    Filed: August 13, 2021
    Publication date: June 13, 2024
    Inventors: Yasuhisa Ito, Shinji Onishi
  • Publication number: 20240185269
    Abstract: An optimization apparatus includes: a selection unit that selects, as a correction value, an element having a magnitude equal to or smaller than a predetermined value from among convex hulls of a policy set; an acquisition unit that acquires a result of execution of a second policy executed in a second round, the second round being a round a predetermined round before a first round for executing a first policy that is determined from among the policy set; a calculation unit that calculates an estimated value of a loss vector in the execution of the policy based on the result of the execution and the correction value selected in the second round; an update unit that updates a first probability distribution based on the estimated value; and a determination unit that determines a policy for a next round based on the updated first probability distribution.
    Type: Application
    Filed: December 19, 2023
    Publication date: June 6, 2024
    Applicant: NEC Corporation
    Inventor: Shinji ITO
  • Patent number: 11994529
    Abstract: The object of the invention is to avoid a decrease in dispensing accuracy of a sample, a reagent, or the like as a temperature changes. In an automatic analyzer, a dispensing nozzle sucks the sample from a sample container holding the sample and discharges the sample to a reaction container. A syringe pump controls an amount of change in a volume of water. A first pipe connects the dispensing nozzle and the syringe pump. An electromagnetic valve flows or stops the water. A second pipe connects the electromagnetic valve and the syringe pump. A branch pipe branches the water. A third pipe connects the electromagnetic valve and the branch pipe. A case accommodates at least the syringe pump, the first pipe, the electromagnetic valve, the second pipe, the branch pipe, and the third pipe. Further, the third pipe includes a heat exchange unit that performs heat exchange of the water.
    Type: Grant
    Filed: April 19, 2023
    Date of Patent: May 28, 2024
    Assignee: Hitachi High-Tech Corporation
    Inventors: Shinji Azuma, Isao Yamazaki, Masashi Fukaya, Takumi Ito
  • Publication number: 20240150309
    Abstract: An object of the present invention is to provide a compound having an anti-inflammatory activity or a pharmacologically acceptable salt thereof. The solution of the present invention is a compound of general formula (1) or a pharmacologically acceptable salt thereof. wherein the symbols in the formula are defined below: R1: e.g., a C1-C6 alkyl group; R2: a C1-C6 alkyl group; A: e.g., an oxygen atom; and R3: e.g., a C1-C6 alkyl group.
    Type: Application
    Filed: November 3, 2023
    Publication date: May 9, 2024
    Applicant: Daiichi Sankyo Company, Limited
    Inventors: Keiji Saito, Katsuyoshi Nakajima, Toru Taniguchi, Osamu Iwamoto, Satoshi Shibuya, Yasuyuki Ogawa, Kazumasa Aoki, Nobuya Kurikawa, Shinji Tanaka, Momoko Ogitani, Eriko Kioi, Kaori Ito, Natsumi Nishihama, Tsuyoshi Mikkaichi, Wataru Saitoh
  • Publication number: 20240141953
    Abstract: An internal pore of a sintered metal bearing 8 is impregnated with a lubricating fluid, and a radial dynamic pressure generation portion 8a1 is formed on an inner peripheral surface 8a. An axial dimension L is 4.8 nm or less, a thickness dimension t is 0.5 mm or more and 1.5 nm or less, and a ratio L/D2 of the axial dimension L to an outer diameter dimension D2 is 0.24 or more and 0.6 or less.
    Type: Application
    Filed: February 21, 2022
    Publication date: May 2, 2024
    Inventors: Shinji KOMATSUBARA, Fuyuki ITO, Toshiaki NIWA
  • Publication number: 20240144303
    Abstract: An optimization apparatus includes: a selection unit that selects, as a correction value, an element having a magnitude equal to or smaller than a predetermined value from among convex hulls of a policy set; an acquisition unit that acquires a result of execution of a second policy executed in a second round, the second round being a round a predetermined round before a first round for executing a first policy that is determined from among the policy set; a calculation unit that calculates an estimated value of a loss vector in the execution of the policy based on the result of the execution and the correction value selected in the second round; an update unit that updates a first probability distribution based on the estimated value; and a determination unit that determines a policy for a next round based on the updated first probability distribution.
    Type: Application
    Filed: December 19, 2023
    Publication date: May 2, 2024
    Applicant: NEC Corporation
    Inventor: Shinji ITO
  • Patent number: 11973272
    Abstract: A spacecraft includes: a main-reflection unit configured to reflect and emit a radio wave outside, a sub-reflection unit configured to face the main-reflection unit, a radiator arranged to face the sub-reflection unit and configured to radiate the radio wave in a direction of the sub-reflection unit, a main body configured to be able to accommodate at least one part of the sub-reflection unit therein, and a delivery device connected to the sub-reflection unit and configured to deliver the sub-reflection unit, at least one part of which is accommodated in the main body, to a position where the sub-reflection unit is able to reflect the radio wave radiated from the radiator to the main-reflection unit and cause the main-reflection unit to radiate the radio wave outside.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: April 30, 2024
    Assignee: Institute for Q-shu Pioneers of Space, Inc.
    Inventors: Shunsuke Onishi, Tetsuo Yasaka, Kazuo Kuno, Masahiko Uetsuhara, Yohei Koga, Shinji Ito, Yonosuke Ichiki, Kazuo Kiso, Mutsuhito Tobo
  • Publication number: 20240135394
    Abstract: An optimization apparatus includes: a selection unit that selects, as a correction value, an element having a magnitude equal to or smaller than a predetermined value from among convex hulls of a policy set; an acquisition unit that acquires a result of execution of a second policy executed in a second round, the second round being a round a predetermined round before a first round for executing a first policy that is determined from among the policy set; a calculation unit that calculates an estimated value of a loss vector in the execution of the policy based on the result of the execution and the correction value selected in the second round; an update unit that updates a first probability distribution based on the estimated value; and a determination unit that determines a policy for a next round based on the updated first probability distribution.
    Type: Application
    Filed: December 19, 2023
    Publication date: April 25, 2024
    Applicant: NEC Corporation
    Inventor: Shinji ITO
  • Patent number: 11967763
    Abstract: Spacecraft and antenna apparatus that can be more easily deployed from a stored state can include: a main-reflection unit including a plurality of ribs formed to be deployable in a stored state in which the ribs are folded and a sheet body provided between a plurality of the ribs and configured to be capable of reflecting a radio wave radiated from a radiator and emitting the radio wave outside, and a restriction member configured to restrict deployment of the plurality of ribs in the stored state, and release the restriction by operation of a restriction release member different from the main-reflection unit.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: April 23, 2024
    Assignee: Institute for Q-shu Pioneers of Space, Inc.
    Inventors: Shunsuke Onishi, Tetsuo Yasaka, Kazuo Kuno, Masahiko Uetsuhara, Yohei Koga, Shinji Ito, Yonosuke Ichiki, Kazuo Kiso, Mutsuhito Tobo
  • Publication number: 20240119894
    Abstract: A display apparatus includes: a display; a display driver that drives the display such that the display displays in accordance with display data; and a host controller that transfers update display data of one screen to the display driver. The display driver includes a light-emission controller that causes a self-luminous elements to emit light, and a memory that stores the update display data of the one screen. The display driver reads the update display data on the memory after an elapse of a predetermined period of time from a drive end time at which the display controller finishes driving in accordance with the update display data and drives the screen by using the read update display data. The display driver drives the self-luminous elements once or more at a timing when the update display data from the host controller to the display driver is not updated.
    Type: Application
    Filed: December 15, 2023
    Publication date: April 11, 2024
    Inventors: YUICHI SATO, KENJI MAEDA, SHINJI YAMAMOTO, TAKUYA OKAMOTO, FUMITAKA SEKI, MASAFUMI ITO, YOHICHI TAKAZANE
  • Patent number: 11949809
    Abstract: An optimization apparatus (100) includes a setting unit (110) that sets a predetermined non-linear objective function, a policy determination unit (120) that determines a policy to be executed in online optimization in a bandit problem, based on the non-linear objective function, a policy execution unit (130) that acquires a reward as an execution result of the determined policy, an update rate determination unit (140) that determines an update rate of the non-linear objective function by a multiplicative weight update method, based on the acquired reward and the non-linear objective function, and an update unit (150) that updates the non-linear objective function, based on the update rate.
    Type: Grant
    Filed: October 7, 2019
    Date of Patent: April 2, 2024
    Assignee: NEC CORPORATION
    Inventor: Shinji Ito
  • Patent number: 11945560
    Abstract: A non-transitory computer-readable storage medium storing a navigation monitoring program that causes at least one computer to execute a process, the process includes acquiring direction information that indicates a direction of a vessel and position information that indicates a position of the vessel; and predicting whether or not the vessel navigates along a course by inputting the acquired direction information and the acquired position information to a prediction model generated by machine learning by using direction information and position information for each of a plurality of vessels that has navigated in the past and a correct answer label that indicates whether or not each of the plurality of vessels navigates along a course.
    Type: Grant
    Filed: June 27, 2022
    Date of Patent: April 2, 2024
    Assignee: FUJITSU LIMITED
    Inventors: Isamu Watanabe, Shinji Ito, Hiraku Fujimoto, Ryusei Ikeda, Kenta Usui
  • Publication number: 20240103812
    Abstract: To enable selection of useful vector sequence a1,a2, . . . ,aT in a bandit linear optimization algorithm for which a fixed strategy is ineffective, an information processing apparatus (1) includes a vector selection unit (11) that selects a vector at in each round t?[T] (T is any natural number) from a subset A of a d-dimensional vector space Rd (d is any natural number). The vector selection unit (11) uses l1,l2, . . . ,lT?Rd as loss vectors to select the vector at in each round t such that an asymptotic behavior of an expected value of tracking regret R(u)=?t?[T]ltTat??t?[T]ltTut with respect to any comparative vector sequence u1,u2, . . . ,uT?A or an asymptotic behavior ignoring logarithmic factors of the expected value of the tracking regret R(u) is constrained from above by a preset function A(d,T,P), where P is a natural number not less than 1 given by P=|{t?[T?1]|ut?ut+1}|.
    Type: Application
    Filed: February 3, 2021
    Publication date: March 28, 2024
    Applicant: NEC Corporation
    Inventor: Shinji Ito
  • Publication number: 20240095610
    Abstract: A purpose of the present invention is to achieve highly accurate optimization for a submodular function when a policy is optimized without preparing data for machine learning. An optimization apparatus (100) according to the present invention includes a determination unit (110) that determines one or more execution policies from a predetermined policy in an objective function having diminishing marginal utility and convexity, a reward acquisition unit (120) that acquires reward, which is an execution result in the objective function for the determined execution policy, a calculation unit (130) that calculates an update rate of the policy based on the reward, and an update unit (140) that updates the policy based on the update rate.
    Type: Application
    Filed: October 24, 2019
    Publication date: March 21, 2024
    Applicant: NEC Corporation
    Inventor: Shinji ITO
  • Publication number: 20240037177
    Abstract: In an optimization device, an acquisition means acquires a reward obtained by executing a certain policy. An updating means updates a probability distribution of the policy based on the obtained reward. Here, the updating means uses a weighted sum of the probability distributions updated in a past as a constraint. A determination means determines the policy to be executed, based on the updated probability distributions.
    Type: Application
    Filed: September 29, 2020
    Publication date: February 1, 2024
    Applicant: NEC Corporation
    Inventor: Shinji Ito
  • Publication number: 20240020351
    Abstract: In order to enable derivation of useful subsets X1, X2, . . . , XT also for an online submodular optimization problem for which a fixed strategy is not effective, an information processing apparatus (1) includes: an objective function setting unit (11) that sets, as an objective function ft in each round t?[T], a submodular function on a power set 2S of a set S consisting of n elements; and a subset sequence derivation unit (12) that derives a subset sequence X1, X2, . . . , XT?2S in which an expected value of regret ?t?[T]ft(Xt)??t?[T]ft(Xt*) with respect to any benchmark X1*, X2*, . . . , Xt*?2S satisfying ?t?[T?1]dH(Xt*, Xt+1*) is not more than an upper limit Max (n,T,V).
    Type: Application
    Filed: October 14, 2020
    Publication date: January 18, 2024
    Applicant: NEC Corporation
    Inventors: Shinji ITO, Tatsuya MATSUOKA, Naoto OHSAKA
  • Publication number: 20230214855
    Abstract: An optimization apparatus includes: a selection unit that selects, as a correction value, an element having a magnitude equal to or smaller than a predetermined value from among convex hulls of a policy set; an acquisition unit that acquires a result of execution of a second policy executed in a second round, the second round being a round a predetermined round before a first round for executing a first policy that is determined from among the policy set; a calculation unit that calculates an estimated value of a loss vector in the execution of the policy based on the result of the execution and the correction value selected in the second round; an update unit that updates a first probability distribution based on the estimated value; and a determination unit that determines a policy for a next round based on the updated first probability distribution.
    Type: Application
    Filed: May 29, 2020
    Publication date: July 6, 2023
    Applicant: NEC Corporation
    Inventor: Shinji Ito
  • Publication number: 20230119566
    Abstract: A non-transitory computer-readable storage medium storing a navigation monitoring program that causes at least one computer to execute a process, the process includes acquiring direction information that indicates a direction of a vessel and position information that indicates a position of the vessel; and predicting whether or not the vessel navigates along a course by inputting the acquired direction information and the acquired position information to a prediction model generated by machine learning by using direction information and position information for each of a plurality of vessels that has navigated in the past and a correct answer label that indicates whether or not each of the plurality of vessels navigates along a course.
    Type: Application
    Filed: June 27, 2022
    Publication date: April 20, 2023
    Applicant: FUJITSU LIMITED
    Inventors: Isamu Watanabe, Shinji Ito, Hiraku FUJIMOTO, Ryusei IKEDA, Kenta Usui
  • Patent number: 11586951
    Abstract: A learning unit 81 generates a plurality of sample groups from samples to be used for learning, and generates a plurality of prediction models while inhibiting overlapping of a sample group to be used for learning among the generated sample groups. An optimization unit 82 generates an objective function based on an explained variable predicted by the prediction model and based on a constraint condition for optimization, and optimizes a generated objective function. An evaluation unit 83 evaluates an optimization result by using a sample group that has not been used in learning of a prediction model used for generating an objective function targeted for the optimization.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: February 21, 2023
    Assignee: NEC CORPORATION
    Inventors: Shinji Ito, Ryohei Fujimaki
  • Publication number: 20230009019
    Abstract: An optimization apparatus (100) includes a setting unit (110) that sets a predetermined non-linear objective function, a policy determination unit (120) that determines a policy to be executed in online optimization in a bandit problem, based on the non-linear objective function, a policy execution unit (130) that acquires a reward as an execution result of the determined policy, an update rate determination unit (140) that determines an update rate of the non-linear objective function by a multiplicative weight update method, based on the acquired reward and the non-linear objective function, and an update unit (150) that updates the non-linear objective function, based on the update rate.
    Type: Application
    Filed: October 7, 2019
    Publication date: January 12, 2023
    Inventor: Shinji ITO