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: 20210182702
    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: Application
    Filed: August 17, 2018
    Publication date: June 17, 2021
    Applicant: NEC CORPORATION
    Inventors: Shinji ITO, Ryohei FUJIMAKI
  • Publication number: 20210142414
    Abstract: A measure determination system 80 determines a measure when an observed effect of the measure changes with time. An optimization unit 81 optimizes, based on the observed effect, an implementation ratio of the measure in such a manner as to maximize the effect to be multiplicatively accumulated. A reliability calculation unit 82 calculates, based on the optimized implementation ratio and the observed effect, reliability of each measure. A measure determination unit 83 determines a measure with higher reliability. An observation unit 84 observes an effect of the determined measure. The optimization unit 81 updates a past implementation ratio based on the observed effect, and the reliability calculation unit 82 updates the reliability of each measure based on the updated implementation ratio.
    Type: Application
    Filed: May 14, 2018
    Publication date: May 13, 2021
    Applicant: NEC Corporation
    Inventor: Shinji ITO
  • Publication number: 20210027109
    Abstract: A learning unit 81 generates a plurality of sample groups from samples used for learning, each of the sample groups containing at least one of samples not contained in the other sample groups, and generates a plurality of prediction models using each of the generated sample groups. An optimization unit 82 generates objective functions, represented by the sum of a plurality of functions, on the basis of explained variables predicted by the prediction models and constraints for optimization, and optimizes the generated objective functions. An evaluation unit 83 evaluates a result of the optimization for each of the objective functions.
    Type: Application
    Filed: October 29, 2018
    Publication date: January 28, 2021
    Applicant: NEC Corporation
    Inventors: Shinji ITO, Ryohei FUJIMAKI
  • Publication number: 20190311222
    Abstract: An evaluation system 80 includes an evaluation unit 81 for evaluating, when there is a prediction model estimated using data generated from the true model, the optimal solution calculated from the prediction model in consideration of bias generated between evaluation based on the prediction model and evaluation based on the true model.
    Type: Application
    Filed: October 18, 2017
    Publication date: October 10, 2019
    Applicant: NEC CORPORATION
    Inventors: Shinji ITO, Akihiro YABE, Ryohei FUJIMAKI
  • Publication number: 20190220496
    Abstract: An accepting unit 81 accepts an optimization problem that can be formulated as BQP represented by zTAz+bTz by use of an n×n square matrix A and an n-dimensional vector b. A condition storage unit 82 stores characteristic conditions representing characteristics of a positive weighted directed graph. An optimization unit 83 transforms the optimization problem based on the characteristic conditions, and solves the accepted optimization problem by solving the transformed problem as a minimum cut problem of a network flow.
    Type: Application
    Filed: May 1, 2017
    Publication date: July 18, 2019
    Applicant: NEC Corporation
    Inventors: Shinji ITO, Ryohei FUJIMAKI
  • Publication number: 20180336476
    Abstract: Provided is an information processing system which perform suitable optimization even if there are input data not observed in mathematical optimization. A learning unit 71 learns a predictive model on the basis of an explained variable and explanatory variables, the predictive model representing a relationship between explained variable and explanatory variables and being expressed by a function of the explanatory variables. A visualization unit 72 visualizes the predictive model. When receiving the operation from the user, an optimization unit 73 calculates an objective variable optimizing an objective function under constraints, the objective function using, as an argument, a predictive model visualized by the visualization unit 72.
    Type: Application
    Filed: August 29, 2016
    Publication date: November 22, 2018
    Applicant: NEC Corporation
    Inventors: Ryohei FUJIMAKI, Shinji ITO
  • Patent number: 10095084
    Abstract: A solid-state laser system may include: a solid-state laser unit configured to output first pulsed laser light with a first wavelength and second pulsed laser light with a second wavelength; a first solid-state amplifier configured to receive the first pulsed laser light, and output third pulsed laser light with the first wavelength; a wavelength converter configured to receive the third pulsed laser light, and output harmonic light with a third wavelength; a second solid-state amplifier configured to receive the second pulsed laser light, and output fourth pulsed laser light with the second wavelength; a Raman laser unit configured to receive the fourth pulsed laser light, and output Stokes light with a fourth wavelength; and a wavelength conversion system configured to receive the harmonic light and the Stokes light, and output fifth pulsed laser light with a fifth wavelength converted in wavelength from the third wavelength and the fourth wavelength.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: October 9, 2018
    Assignees: The University of Tokyo, Gigaphoton Inc.
    Inventors: Yohei Kobayashi, Shinji Ito
  • Publication number: 20180285787
    Abstract: A model input unit 84 receives a linear regression model represented by a function having an objective variable as an explanatory variable. A candidate point input unit 85 receives, for the objective variable included in the linear regression model, at least one candidate point which is a discrete candidate for a possible value of the objective variable. An optimization unit 86 calculates the objective variable that optimizes an objective function having the linear regression model as an argument.
    Type: Application
    Filed: August 9, 2016
    Publication date: October 4, 2018
    Applicant: NEC Corporation
    Inventors: Shinji ITO, Ryohei FUJIMAKI
  • Publication number: 20180196330
    Abstract: A solid-state laser system may include: a solid-state laser unit configured to output first pulsed laser light with a first wavelength and second pulsed laser light with a second wavelength; a first solid-state amplifier configured to receive the first pulsed laser light, and output third pulsed laser light with the first wavelength; a wavelength converter configured to receive the third pulsed laser light, and output harmonic light with a third wavelength; a second solid-state amplifier configured to receive the second pulsed laser light, and output fourth pulsed laser light with the second wavelength; a Raman laser unit configured to receive the fourth pulsed laser light, and output Stokes light with a fourth wavelength; and a wavelength conversion system configured to receive the harmonic light and the Stokes light, and output fifth pulsed laser light with a fifth wavelength converted in wavelength from the third wavelength and the fourth wavelength.
    Type: Application
    Filed: March 5, 2018
    Publication date: July 12, 2018
    Applicants: The University of Tokyo, GIGAPHOTON INC.
    Inventors: Yohei KOBAYASHI, Shinji ITO
  • Publication number: 20180179369
    Abstract: A thermoplastic resin composition of the invention contains a cellulose-containing solid material obtained after heat treatment of a botanical biomass as a raw material in a mixed solvent of water and at least one alcohol selected from aliphatic alcohols having 4 to 8 carbon atoms, and a thermoplastic resin. Accordingly, a thermoplastic resin composition can be provided, which, as compared with a case of incorporating conventional cellulose nanofibers or lignocellulose nanofibers in a resin composition, simplifies the production step, improves miscibility with a thermoplastic resin and improves thermal stability.
    Type: Application
    Filed: June 10, 2016
    Publication date: June 28, 2018
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Shinji Ito, Shinobu Yamao, Yoshihito Koyama
  • Publication number: 20180109065
    Abstract: An amplifier may include a chamber, and first and second mirrors. The chamber may include a pair of discharge electrodes opposed to each other in a first direction, a laser exciting medium, an input window allowing seed light to pass therethrough into the chamber, and an output window allowing amplified laser light to pass therethrough to outside in a second direction intersecting with the first direction. The first and second mirrors may each include a reflection region, and be opposed to each other in a third direction intersecting with the first direction with the pair of discharge electrodes in between. A projected image of the reflection region of the first mirror in the second direction and a projected image of the reflection region of the second mirror in the second direction may provide a gap of a size equal to or greater than zero in between.
    Type: Application
    Filed: December 7, 2017
    Publication date: April 19, 2018
    Applicant: GIGAPHOTON INC.
    Inventors: Youichi SASAKI, Shinji ITO, Hironori IGARASHI
  • Publication number: 20170338617
    Abstract: A solid-state laser apparatus may include a first oscillator, a laser light generator, and a plurality of stages of fiber amplifiers. The first oscillator may be configured to output seed light. The laser light generator may be configured to output a pulsed laser light beam generated on a basis of the seed light. The plurality of stages of fiber amplifiers may be disposed in series in an optical path of the pulsed laser light beam, and may include a final stage fiber amplifier. The final stage fiber amplifier may be located in a final stage in the plurality of stages of fiber amplifiers, and may include a silica fiber doped with erbium and ytterbium. A value as a result of division of a cross-sectional area of the silica fiber by a fiber length of the silica fiber may be in a range from 0.7 nm to 1.64 nm both inclusive.
    Type: Application
    Filed: August 9, 2017
    Publication date: November 23, 2017
    Applicants: The University of Tokyo, GIGAPHOTON INC.
    Inventors: Zhigang ZHAO, Yohei KOBAYASHI, Shinji ITO, Osamu WAKABAYASHI
  • Patent number: 9822867
    Abstract: A motorcycle wherein only air can be communicated between the inside and the outside of a gear case without increasing the size of the gear case. A gear case includes a gear case body and a gear case cover. The gear case body includes a breather chamber of a labyrinth structure which continues in a circumferential direction of a rear wheel and extends in an upward and downward direction. An upper end of the breather chamber is in communication with a breather path and is open to atmospheric air while a lower end of the breather chamber is in communication with a gear chamber through a slit extending in a widthwise direction of the rear wheel.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: November 21, 2017
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Shinji Ito, Masufumi Kugai
  • Patent number: 9567032
    Abstract: A brake caliper arrangement structure for a saddled vehicle, wherein a brake caliper for braking and a brake caliper for parking are provided on a swing arm. At least one or other of the brake caliper for braking and the brake caliper for parking is arranged in front of a rear axle being the axle of the rear wheel, when viewed from a side, at a position on a vehicle widthwise inside of the swing arm and overlapping the swing arm.
    Type: Grant
    Filed: July 22, 2013
    Date of Patent: February 14, 2017
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Ryuichi Nagai, Hirokatsu Nakaie, Hidetoshi Toyoda, Shinji Ito, Shinji Kawasaki, Yasumasa Matsui
  • Patent number: 9440705
    Abstract: A brake caliper includes: a caliper body which slidably houses a mechanically operated piston which presses a brake disc; a rotation cylinder member which is arranged alongside the mechanically operated piston, coaxially with the mechanically operated piston, and which is rotatably supported on the caliper body; a rotation arm which is fixed to the rotation cylinder member, and which rotates the rotation cylinder member by means of an operation of an operating element; a conversion mechanism which is provided between the rotation cylinder member and the mechanically operated piston, and which converts rotary motion of the rotation cylinder member into axial linear motion of the mechanically operated piston to thereby press and move the mechanically operated piston toward the brake disc side; and a return spring which biases the mechanically operated piston in a direction of moving away from the brake disc.
    Type: Grant
    Filed: May 22, 2013
    Date of Patent: September 13, 2016
    Assignee: Honda Motor Co. Ltd.
    Inventors: Ryuichi Nagai, Hirokatsu Nakaie, Shinji Ito, Hidetoshi Toyoda, Shinji Kawasaki, Yasumasa Matsui
  • Publication number: 20160216351
    Abstract: The object of the invention is to provide a method for detecting an oxidation/reduction reaction of a molecule in a lipophilic portion and visualizing the reaction. This is a method for detecting an oxidation/reduction reaction of a molecule that undergoes a free-radical reaction in a lipid environment, the method including: a step in which a magnetic resonance method is applied to a living body or sample to be examined and a proton image of the molecule that undergoes a free-radical reaction in a lipid environment is thereby obtained; and a step in which the proton image is examined for the image intensity of the living body or sample.
    Type: Application
    Filed: May 29, 2014
    Publication date: July 28, 2016
    Applicant: Kyushu University, National University Corporation
    Inventors: Hideo UTSUMI, Fuminori HYODO, Shinji Ito
  • Publication number: 20160029670
    Abstract: A silica formulation comprising cashew nut shell liquid, anacardic acid, cardol, or cardanol, and silica particles, wherein the silica particles have adsorbed therein the cashew nut shell liquid, the anacardic acid, the cardol, or the cardanol, and wherein the silica particles have an average particle diameter of 150 ?m or more.
    Type: Application
    Filed: March 11, 2014
    Publication date: February 4, 2016
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Shinji ITO, Seika OOIWA, Kyo NAGASHIMA, Masami MOCHIZUKI
  • Publication number: 20150291250
    Abstract: A brake caliper arrangement structure for a saddled vehicle, wherein a brake caliper for braking and a brake caliper for parking are provided on a swing arm. At least one or other of the brake caliper for braking and the brake caliper for parking is arranged in front of a rear axle being the axle of the rear wheel, when viewed from a side, at a position on a vehicle widthwise inside of the swing arm and overlapping the swing arm.
    Type: Application
    Filed: July 22, 2013
    Publication date: October 15, 2015
    Inventors: Ryuichi Nagai, Hirokatsu Nakaie, Hidetoshi Toyoda, Shinji Ito, Shinji Kawasaki, Yasumasa Matsui
  • Publication number: 20150203170
    Abstract: A brake caliper includes: a caliper body which slidably houses a mechanically operated piston which presses a brake disc; a rotation cylinder member which is arranged alongside the mechanically operated piston, coaxially with the mechanically operated piston, and which is rotatably supported on the caliper body; a rotation arm which is fixed to the rotation cylinder member, and which rotates the rotation cylinder member by means of an operation of an operating element; a conversion mechanism which is provided between the rotation cylinder member and the mechanically operated piston, and which converts rotary motion of the rotation cylinder member into axial linear motion of the mechanically operated piston to thereby press and move the mechanically operated piston toward the brake disc side; and a return spring which biases the mechanically operated piston in a direction of moving away from the brake disc.
    Type: Application
    Filed: May 22, 2013
    Publication date: July 23, 2015
    Inventors: Ryuichi Nagai, Hirokatsu Nakaie, Shinji Ito, Hidetoshi Toyoda, Shinji Kawasaki, Yasumasa Matsui
  • Patent number: 9068308
    Abstract: A beach cleaner for recovering relatively heavy garbage or stones while minimizing the amount of sand entering a garbage recovery unit. The beach cleaner includes a frame formed by a longitudinal member and a lateral member. A towed portion is provided at the front portion of the frame for towing by a tow vehicle. A separator is provided at the lower front portion of the frame to separate and scrape garbage from sandy ground. A recovery unit is provided behind the separator to collect garbage scraped onto the mesh member. At least one separation rod unit is provided having a plurality of longitudinal members and a lateral member for joining the rear ends of the respective longitudinal members. The front end of at least one separation rod unit is secured to the separator so as to be turnable in the up-and-down direction.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: June 30, 2015
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Shinji Ito, Tatsuo Masuda, Yasuji Hashimoto