Patents by Inventor Takeshi Kojima

Takeshi Kojima 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: 11692093
    Abstract: Provided is a resin composition from which a three-dimensional molding can be produced at an appropriate speed and with high dimensional accuracy, wherein the obtained three-dimensional molding has high strength. This resin composition is used in a method for producing a three-dimensional molding composed of a cured product of a liquid resin composition by selectively irradiating the liquid resin composition with active energy rays. The resin composition includes at least: a first polymerizable compound, in a liquid state at room temperature, having radical polymerizability; a second polymerizable compound, in a liquid state at room temperature, having no radical polymerizability; and a filler, wherein the surface of the filler is covered with the second polymerizable compound.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: July 4, 2023
    Assignee: KONICA MINOLTA, INC.
    Inventor: Takeshi Kojima
  • Patent number: 11667036
    Abstract: A workpiece picking device includes a sensor that measures the workpieces, a hand that grasps the workpieces, a robot that moves the hand, and a control device thereof. The control device has a position orientation calculation part that calculates position, orientation and the like of the workpieces, a grasping orientation calculation part that calculates a grasping orientation of the workpieces by the hand, a route calculation part that calculates a route through which the hand moves to the grasping orientation, a sensor control part, a hand control part, a robot control part, a situation determination part that determines the situation of the workpieces on the basis of measurement result or the like of the three-dimensional position, and a parameter modification part that modifies at least one of a measurement parameter and various calculation parameters, when the determination result of the situations of the workpieces satisfies a predetermined condition.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: June 6, 2023
    Assignee: OMRON Corporation
    Inventors: Norikazu Tonogai, Toshihiro Moriya, Takeshi Kojima, Haruka Fujii
  • Publication number: 20230151197
    Abstract: Provided is a halogen-free resin composition including a polyolefin resin, containing a phosphorus compound in an amount of 0.05 to 2.5 mass % as a phosphorus content; a NOR-type hindered amine in an amount of 0.05 to 5 mass %; and an inorganic filler in an amount of 3 to 50 mass %, respectively, with respect to the total amount of the resin composition, wherein a DTA (Differential Thermal Analysis) curve obtained by differential thermal analysis of the inorganic filler has an endothermic portion in a temperature range of 180 to 500° C.; and in the inorganic filler, a ratio value of a number of particles having a maximum diameter of 300 ?m or more to a number of particles having a maximum diameter of 100 ?m or more is ? or less, or there are no particles having a maximum diameter of 100 ?m or more.
    Type: Application
    Filed: November 4, 2022
    Publication date: May 18, 2023
    Applicant: KONICA MINOLTA, INC.
    Inventors: Yo NAKAJIMA, Masashi MAMINO, Takeshi KOJIMA, Yuuki NAGAI
  • Publication number: 20230113796
    Abstract: A waiting time estimation device includes an acquisition unit, an estimation unit and an output unit. From captured images of queuing-up people, the acquisition unit acquires, as attribute information, at least one piece of information out of: the behaviors of the queuing-up people; the types of the belongings of the queuing-up people; the facial expressions of the queuing-up people; and information as to whether or not any groups have been formed in the queuing-up people. The estimation unit estimates, as the waiting time in the queuing-up case, a time that is obtained by modifying a standard waiting time in the queuing-up case through the use of a modification time having been set on the basis of the attribute information. The output unit outputs the estimated waiting time of the queue toward an announcement device that announces the waiting time.
    Type: Application
    Filed: March 18, 2020
    Publication date: April 13, 2023
    Applicant: NEC Corporation
    Inventors: Kazuki SEKO, Takeshi KOJIMA, Makoto KATAOKA, Toshiro YAMAMOTO
  • Publication number: 20230106798
    Abstract: In order to provide a technique capable of presenting information that is different from the image of a surveillance camera and is effective for searching for a person, this search information providing device includes, as functional units, a collation unit and an output unit. The collation unit collates a fingerprint image obtained by a fingerprint photographing device with a fingerprint image, of a search target person, given in advance. When the fingerprint image on the handrail member matches the fingerprint image of the search target person, the output unit outputs information indicating that the search target person has been detected to a predetermined reporting destination.
    Type: Application
    Filed: March 19, 2020
    Publication date: April 6, 2023
    Applicant: NEC Corporation
    Inventors: Kazuki SEKO, Takeshi KOJIMA, Makoto KATAOKA, Toshiro YAMAMOTO
  • Patent number: 11614696
    Abstract: An image formation apparatus according to an embodiment may include: a first image formation section configured to form a first image of a developer containing a lustrous pigment; a second image formation section configured to form a second image of a dyeing developer; and a transfer section configured to transfer the first image and the second image on a medium such that the first image and the second image are stacked to each other on the medium.
    Type: Grant
    Filed: January 18, 2021
    Date of Patent: March 28, 2023
    Assignee: Oki Electric Industry Co., Ltd.
    Inventors: Shin Yamada, Takeshi Kojima
  • Patent number: 11561493
    Abstract: According to one embodiment, a temperature control device stores a fixing device temperature estimation value and a storage time obtained by WAE control in a memory at any time during operation. After an electric power supply to the temperature control device is stopped, the next time the electric power supply is started, an electric power supply stop period until the electric power supply is started is calculated. If the electric power supply stop period is shorter than a set time, the WAE control is started by using the stored fixing device temperature estimation value, and if the electric power supply stop period exceeds the set time, the WAE control is started based on an initial set value.
    Type: Grant
    Filed: January 7, 2022
    Date of Patent: January 24, 2023
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Takeshi Kojima, Yutaka Usami
  • Publication number: 20230001633
    Abstract: The present invention addresses the problem of providing: a method for manufacturing a three-dimensional modeled object, with which it is possible to fabricate a three-dimensional modeled object having high strength, using electron beam irradiation. In order to solve said problem, this method for manufacturing a three-dimensional modeled object comprises: a thin layer formation step in which a composition containing a radical polymerizable compound is applied to form a thin layer; and an electron beam irradiation step in which said thin layer is subjected to electron beam irradiation, and the radical polymerizable compound is cured to form a modeled object layer. The thin layer formation step and the electron beam irradiation step are repeated a number of times to layer the modeled object layer. The electron beam irradiation step is carried out in an atmosphere having an oxygen concentration from 50 ppm to less than 5,000 ppm.
    Type: Application
    Filed: January 31, 2020
    Publication date: January 5, 2023
    Inventors: Takeshi KOJIMA, Shigeki TAKENOUCHI
  • Publication number: 20220403134
    Abstract: A resin powder for three-dimensional laminated modeling contains an aggregate of resin particles. A volume average particle size MV of the resin particles is in the range of 1 to 200 ?m. A value of a ratio (MV/MN) of the volume average particle size MV and a number average particle size MN of the resin particles is 2.5 or more. A static bulk density is 0.30 g/cm3 or more. The resin particles contain a crystalline thermoplastic resin.
    Type: Application
    Filed: October 28, 2020
    Publication date: December 22, 2022
    Inventors: Masaharu SHIRAISHI, Kenji GOTO, Takeshi KOJIMA
  • Patent number: 11527008
    Abstract: A robot control device includes an obtaining unit that obtains, from an image sensor that captures a workpiece group to be handled by a robot, a captured image, a simulation unit that simulates operation of the robot, and a control unit that performs control such that the captured image is obtained if, in the simulation, the robot is retracted from an image capture forbidden space, in which an image is potentially captured with the workpiece group and the robot overlapping each other, and which is set based on either or both a first space being the visual field range of the image sensor, and a columnar second space obtained by taking a workpiece region including the workpiece group or each of divided regions into which the workpiece region is divided, as a bottom area, and extending the bottom area to the position of the image sensor.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: December 13, 2022
    Assignee: OMRON Corporation
    Inventors: Haruka Fujii, Toshihiro Moriya, Takeshi Kojima, Norikazu Tonogai
  • Publication number: 20220389196
    Abstract: Provided is a resin composition for injection molding including a polyolefin resin, containing: at least one selected from the group consisting of aluminum hydroxide, magnesium hydroxide and a phosphorus compound in an amount of 10 to 60 mass %; a NOR-type hindered amine compound in an amount of 0.05 to 5 mass %; and a fibrous filler having an aspect ratio of 10 or more in an amount of 1 to 20 mass %, respectively, relative to the total amount of the resin composition, wherein a phosphorous content is 5 mass % or less relative to the total amount of the resin composition.
    Type: Application
    Filed: May 26, 2022
    Publication date: December 8, 2022
    Inventors: Takeshi KOJIMA, Masashi MAMINO, Yuuki NAGAI, Yo NAKAJIMA
  • Patent number: 11421119
    Abstract: The purpose of the present invention is to provide a liquid resin composition which includes polysaccharide nanofibres, and which is used in a three-dimensional moulding production method in which a moulding obtained by curing the resin composition by irradiating the resin composition with active energy rays is three-dimensionally formed, wherein unevenness in strength in the height direction is not readily produced in the formed three-dimensional moulding. The present invention relates to a liquid resin composition which is used to produce a three-dimensional moulding, and which three-dimensionally forms a moulding as a result of being cured by being selectively irradiated with active energy rays. The resin composition includes an active energy ray-curable compound and polysaccharide nanofibres. The ratio of the number of polysaccharide nanofibres having a branched structure to the total number of polysaccharide nanofibres is less than 20%.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: August 23, 2022
    Assignee: KONICA MINOLTA, INC.
    Inventor: Takeshi Kojima
  • Patent number: 11365466
    Abstract: Provided is a method for manufacturing a steel member through hot press forming using a steel sheet that contains a comparatively large amount of Si. The steel sheet includes, in mass ratio, C: 0.15% to 0.35%, Si: 1.0% to 3.0%, Mn: 1.0% to 3.0%, Al: more than 0% up to 0.10%, Ti: ([N]×48/14)% to 0.10% (where [N] denotes the amount of N in the steel sheet), B: 5 ppm to 50 ppm, P: more than 0% to less than 0.015%, S: more than 0% up to 0.010%, and N: more than 0% up to 0.010%, the balance being iron and unavoidable impurities. The average oxygen concentration from an outermost surface of the steel sheet down to a depth of 10 ?m in a sheet thickness direction is 0.70 mass % or higher.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: June 21, 2022
    Assignee: Kobe Steel, Ltd.
    Inventors: Tatsuya Asai, Naoki Mizuta, Hiroyuki Omori, Takeshi Kojima
  • Patent number: 11325599
    Abstract: A vehicle motion control system includes: a steering angle sensor for detecting a steering angle; a vehicle speed sensor for detecting a vehicle speed; a lateral acceleration sensor for detecting an actual lateral acceleration of a vehicle body; a reference lateral acceleration calculation unit configured to calculate a reference lateral acceleration from the steering angle and the vehicle speed; a required longitudinal force calculation unit configured to calculate a required longitudinal force for reducing a deviation of the actual lateral acceleration relative to the reference lateral acceleration; and a longitudinal force control unit configured to control an output of at least one of a brake and a power plant such that the required longitudinal force is generated.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: May 10, 2022
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Masahiro Hirota, Takeshi Kojima, Naoto Okubo, Hitoshi Sasaki, Shigeru Doi, Ryoma Kanda, Yuya Goto
  • Publication number: 20220032460
    Abstract: A robot control device includes: a first acquisition unit to acquire path information relating to a path of a robot and speed information relating to a speed the robot moves on the path; a second acquisition unit to acquire specification information relating to a specification of the robot; a determination unit to determine a segment where an action time of the robot is shortened even when a waypoint is added on the path; a correction unit to correct the path of the robot so as to make inertia of the robot smaller in a segment where an action time of the robot is shortened; a computation unit to compute a load acting on a joint of the robot; and an adjustment unit to adjust a control amount for controlling an acceleration of the robot joint such that the load computed by the computation unit satisfies a target load.
    Type: Application
    Filed: November 27, 2019
    Publication date: February 3, 2022
    Applicant: OMRON Corporation
    Inventors: Shinichi Hosomi, Akane Nakashima, Akihiro Suzumura, Ryoichi Kuratani, Takeshi Kojima
  • Publication number: 20220032459
    Abstract: When occurrence of an obstruction has been detected during action of a robot, a path generation section acquires environment information at a periphery of the robot after obstruction occurred, robot specification information, and safe pose information representing a recovery-pose for the robot, and generates a path of the robot from a pose after obstruction occurred to a safe pose based on the acquired information.
    Type: Application
    Filed: March 15, 2019
    Publication date: February 3, 2022
    Applicant: OMRON Corporation
    Inventor: Takeshi Kojima
  • Publication number: 20220008600
    Abstract: A shielding structure of an object sterilized by radiation. The object is a housing that accommodates an accommodated object therein and is formed of a shielding material that shields the radiation and secondary radiation that has a higher transparency than the radiation and is secondarily generated by the radiation, an exterior of the housing is sterilized by the radiation, and the radiation and the secondary radiation do not penetrate through the accommodated object.
    Type: Application
    Filed: September 24, 2021
    Publication date: January 13, 2022
    Applicant: JGC JAPAN CORPORATION
    Inventors: Takeshi KOBAYASHI, Takeshi KOJIMA
  • Patent number: 11208144
    Abstract: A vehicle behavior stabilization system includes a yaw moment applying device configured to apply a yaw moment to the vehicle, a vehicle behavior stabilization control unit configured to selectively control the yaw moment applying device in such a way to stabilize a vehicle behavior according to a computed rear wheel slip angle in relation to a start threshold value and an end threshold value, and a threshold value correcting unit configured to correct the start threshold value and the end threshold value according to a change rate of the computed rear wheel slip angle and/or a change rate of a computed vehicle body slip angle.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: December 28, 2021
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Hitoshi Sasaki, Masahiro Hirota, Takeshi Kojima, Naoto Okubo
  • Patent number: 11207780
    Abstract: A path planning apparatus is provided with a path planning unit that generates a path of a robot using a plurality of different path planning methods that respectively correspond to a plurality of different constraints determined from the posture of the robot and the characteristics of one or more obstacles that obstruct movement of the robot, an acquisition unit that acquires posture information indicating an initial posture of a robot for which a path is to be generated and a target posture of the robot, and obstacle information indicating a target obstacle that obstructs movement of the robot from the initial posture to the target posture, and a controller that controls the path planning unit so as to generate a path of the robot using a path planning method corresponding to a constraint determined from the posture information and the obstacle information acquired by the acquisition unit.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: December 28, 2021
    Assignee: OMRON Corporation
    Inventors: Toshihiro Moriya, Kennosuke Hayashi, Akane Nakashima, Takeshi Kojima, Haruka Fujii
  • Publication number: 20210317292
    Abstract: Provided is a thermoplastic resin composition containing a thermoplastic resin A, a hard filler B and a compatibilizer C, wherein the hard filler B contains a hard filler B1 having an average particle diameter in the range of 0.7 to 40 ?m and a hard filler B2 having an average particle diameter in the range of 0.01 to 0.5 ?m, the compatibilizer C at least adheres to a surface of the hard filler B1, and a ratio WB1/WB2 is 1.5 or more, when WB1 and WB2 are adhesion masses of the compatibilizer C adhered to the surfaces of the hard filler B1 and the hard filler B2, respectively, and WB1 and WB2 each are measured per unit cross-sectional area.
    Type: Application
    Filed: March 15, 2021
    Publication date: October 14, 2021
    Inventors: Yo NAKAJIMA, Yuuki NAGAI, Masashi MAMINO, Takeshi KOJIMA