Patents by Inventor Wataru Okada

Wataru Okada 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: 12214407
    Abstract: There is provided a press brake that improves bending accuracy of a partial bending method. The press brake includes: a conveying mechanism that intermittently conveys a workpiece; a die; a punch; a crowning mechanism; a bending amount measuring device; and a control device. The control device presses an end portion of the workpiece in a conveying direction by the punch and conveys the workpiece by the conveying mechanism until the pressed portion enters into a measurement range of the bending amount measuring device. The control device drives the crowning mechanism so as to correct a crowning amount in accordance with a difference between a middle bending amount and an end bending amount measured by the bending amount measuring device.
    Type: Grant
    Filed: December 28, 2021
    Date of Patent: February 4, 2025
    Assignees: KAWASAKI JOKOGYO KABUSXIXI KAISMA, LVD COMPANY NV
    Inventors: Hideki Okada, Wataru Hirabayashi, Kristof Tyvaert, Alexander Cornelus
  • Publication number: 20250004059
    Abstract: The battery capacity of a storage battery is estimated without acquiring information on the battery capacity from the storage battery side. A battery capacity estimation device that estimates the battery capacity of a storage battery, the battery capacity estimation device including: a characteristic information acquisition unit configured to acquire the charge characteristic information of the storage battery in which at least one of a charge current, a charge voltage, or a charge power for charging the storage battery is associated with the battery capacity; and a capacity estimation unit configured to perform an estimation process of outputting power of a first output power value to the storage battery over a predetermined time necessary for estimating the battery capacity to perform first charging and estimating the battery capacity on the basis of at least the first output power value.
    Type: Application
    Filed: March 23, 2022
    Publication date: January 2, 2025
    Inventors: Chen CHEN, Shingo NAGAOKA, Takeo NISHIKAWA, Wataru OKADA, Satoru IKEMOTO, Takuya NAKAI
  • Patent number: 12176554
    Abstract: A power storage device includes: a power storage module in which a plurality of power storage cells are stacked along a stacking direction; and a case that accommodates the power storage module, wherein each of the power storage cells in the power storage module has a main surface extending in a direction substantially orthogonal to the stacking direction, and the case includes a supporting portion that supports, along the stacking direction, the power storage module accommodated in the case, and the case is provided with a recess that is provided at a position different from the supporting portion and that opens toward the main surface.
    Type: Grant
    Filed: August 16, 2021
    Date of Patent: December 24, 2024
    Assignee: Prime Planet Energy & Solutions, Inc.
    Inventors: Taijyu Morishita, Wataru Okada
  • Patent number: 12160230
    Abstract: In a switching circuit apparatus, first and second capacitors apply power supply voltages to first and second drive circuits. First and second diodes are connected such that currents flow from a DC voltage source to the first and second capacitors. A resistor and a Zener diode are connected in series between a terminal and a node, such that a reverse bias voltage is applied from the terminal to the Zener diode via the resistor. A third diode is connected such that a current flows to the first capacitor from a node (N2) between the resistor and the Zener diode.
    Type: Grant
    Filed: August 31, 2021
    Date of Patent: December 3, 2024
    Assignee: OMRON CORPORATION
    Inventors: Noriyuki Nosaka, Junya Mishima, Mamoru Sueki, Wataru Okada
  • Publication number: 20240364213
    Abstract: A switching circuit including: a switching device configured to conduct or open a state between a drain terminal and a source terminal; a drive circuit including a first switch element and a second switch element, the drive circuit being configured to open and close the first switch element and the second switch element, and output a drive voltage for driving the switching device to the gate terminal via an output end; a clamp circuit including a third switch element configured to conduct between a reference potential of the drive circuit and a connection point of a path connecting the output end of the drive circuit and the gate terminal; and a ferrite inductor provided immediately near the output end of the drive circuit, and having one end connected to the output end and the other end connected to the connection point.
    Type: Application
    Filed: March 29, 2022
    Publication date: October 31, 2024
    Inventors: Noriyuki NOSAKA, Mamoru SUEKI, Satoshi IWAI, Junya MISHIMA, Hironori TAUCHI, Wataru OKADA
  • Patent number: 12100986
    Abstract: A charging system includes a power transfer device and a rapid charging battery. The power transfer device includes a first power transfer unit being compatible with a first charging standard specifying that the rapid charging battery is to be charged at a predetermined current value. The rapid charging battery includes a first charging unit being compatible with the first charging standard, and a second power transfer unit being compatible with a second charging standard specifying that power is to be transferred at a predetermined current value that is lower than the predetermined current value specified by the first charging standard.
    Type: Grant
    Filed: July 19, 2021
    Date of Patent: September 24, 2024
    Assignee: PRIME PLANET ENERGY & SOLUTIONS, INC.
    Inventors: Kodai Nagano, Atsushi Sugihara, Shizuka Masuoka, Sokichi Okubo, Hiroyuki Obata, Hiroshi Temmyo, Yuki Yoshikawa, Jun Nishikawa, Wataru Okada, Iwao Nitta
  • Patent number: 12101018
    Abstract: A driving circuit for a switching element that drives a switching element of a current-driven type. The driving circuit includes a controller including a first terminal and a second terminal and that outputs a control signal to a gate terminal of the switching element. A first resistor, which regulates a current serving as the control signal, is connected to the first terminal, and a first capacitor is connected in parallel to the first resistor. A second resistor and a second capacitor are connected in parallel, and a current path extends from the first resistor and the first capacitor to the gate terminal and from a source terminal of the switching element to the second terminal of the controller. The second resistor and the second capacitor are in the current path.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: September 24, 2024
    Assignee: OMRON CORPORATION
    Inventors: Noriyuki Nosaka, Wataru Okada, Hironori Nakada, Satoshi Iwai
  • Patent number: 11984885
    Abstract: A semiconductor circuit includes: a first inductor part configured to connect in series with a source electrode of a first semiconductor element; and a second inductor part configured to connect in series with a source electrode in a second semiconductor element that is configured to connect in parallel with the first semiconductor element; the first inductor part and the second inductor part are arranged to generate an induced electromotive force in the first inductor part and the second inductor part by way of a magnetic interaction so that the currents flowing in the first inductor part and the second inductor part are reinforced in the same direction.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: May 14, 2024
    Assignee: OMRON CORPORATION
    Inventors: Noriyuki Nosaka, Chen Chen, Takanori Ishii, Wataru Okada
  • Patent number: 11848463
    Abstract: Each of a plurality of power storage cells includes an top surface provided with an electrode terminal, a bottom surface opposite to the top surface, and a side surface contiguous to the top surface and the bottom surface. A case includes a main body provided with an opening on the side surface side of the plurality of power storage cells, and a cover provided over the opening. The case has a first inner side surface and a second inner side surface each facing the side surfaces of the plurality of power storage cells. A power storage device includes biasing means for biasing the plurality of power storage cells toward the second inner side surface of the case, the biasing means being provided between the first inner side surface of the case and the plurality of power storage cells.
    Type: Grant
    Filed: October 13, 2021
    Date of Patent: December 19, 2023
    Assignee: PRIME PLANET ENERGY & SOLUTIONS, INC.
    Inventors: Taijyu Morishita, Wataru Okada
  • Publication number: 20230387912
    Abstract: A driving circuit that drives a switching element, the driving circuit includes: a controller that includes a first terminal connected to a gate terminal of the switching element and a second terminal connected to a source terminal of the switching element, and outputs a control signal from the first terminal to the gate terminal; a first capacitor and a first resistor connected in parallel; and a second capacitor and a second resistor connected in parallel, in which the first capacitor and the first resistor are connected in series to a first connecting wire for connecting the gate terminal and the first terminal on the gate terminal side of the first connecting wire, and in which the second capacitor and the second resistor are connected in series to the first connecting wire on the first terminal side of the first connecting wire.
    Type: Application
    Filed: September 7, 2021
    Publication date: November 30, 2023
    Inventors: Noriyuki NOSAKA, Hironori TAUCHI, Takuro HASHIMOTO, Wataru OKADA, Mamoru SUEKI, Satoshi IWAI
  • Publication number: 20230327664
    Abstract: In a switching circuit apparatus, first and second capacitors apply power supply voltages to first and second drive circuits. First and second diodes are connected such that currents flow from a DC voltage source to the first and second capacitors. A resistor and a Zener diode are connected in series between a terminal and a node, such that a reverse bias voltage is applied from the terminal to the Zener diode via the resistor. A third diode is connected such that a current flows to the first capacitor from a node (N2) between the resistor and the Zener diode.
    Type: Application
    Filed: August 31, 2021
    Publication date: October 12, 2023
    Inventors: Noriyuki NOSAKA, Junya MISHIMA, Mamoru SUEKI, Wataru OKADA
  • Patent number: 11777169
    Abstract: A method of manufacturing a power storage module includes: stacking a plurality of power storage cells along a first direction; compressing the plurality of power storage cells along the first direction; aligning the plurality of power storage cells in a second direction orthogonal to the first direction after relieving pressing force of the compressing; compressing the plurality of power storage cells along the first direction after aligning the plurality of power storage cells in the second direction; disposing a restraint portion on both sides in the first direction with respect to the plurality of power storage cells under application of pressing force of the compressing; and restraining the plurality of power storage cells by the restraint portion along the first direction by relieving, after disposing the restraint portion, the pressing force of the compressing.
    Type: Grant
    Filed: February 15, 2022
    Date of Patent: October 3, 2023
    Assignee: PRIME PLANET ENERGY & SOLUTIONS, INC.
    Inventors: Wataru Okada, Seiichi Sakuramoto
  • Patent number: 11616261
    Abstract: A power supply device includes battery cells each having a rectangular external shape, a separator disposed between the battery cells, a pair of end plates that are disposed on respective ends of a battery assembly in which the separator and the battery cells are stacked, and a bind bar that binds the pair of end plates. The separator has insulating rib parts that protrude from both surfaces of the separator, and the insulating rib parts of the separator stacked on each surface of the battery cell are stacked on each other on a bottom surface of the battery cell. The insulating rib parts are stacked on each other on the bottom surface of the battery cell by inserting an insertion rib provided in one of the stacked insulating rib parts into an insertion groove provided in the other of the stacked insulating rib parts.
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: March 28, 2023
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Wataru Okada, Kosho Abe, Yusuke Fujii, Takeshi Nagane, Sho Ojima
  • Patent number: 11606021
    Abstract: A power converter apparatus includes a switching circuit generating an AC voltage by switching a DC voltage at a predetermined switching frequency, and a filter circuit converting the AC voltage from the switching circuit into the DC voltage by low-pass filtering the AC voltage. The filter circuit includes first and second bypass capacitors, and an inductor. The first bypass capacitor bypasses noise of a first frequency component of the AC voltage from the switching circuit, and the second bypass capacitor bypasses noise of a second frequency component of the AC voltage from the switching circuit, which is lower than the first frequency component. The inductor is between the first and second bypass capacitors, and the inductance thereof is set so that a resonance frequency of the filter circuit is lower than multiple times the switching frequency by insertion of the inductor, thereby reducing the switching noise flowing to the load.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: March 14, 2023
    Assignee: OMRON CORPORATION
    Inventors: Noriyuki Nosaka, Takeo Nishikawa, Wataru Okada, Satoshi Iwai, Takanori Ishii, Gun Eto
  • Publication number: 20230043841
    Abstract: A semiconductor circuit includes: a first inductor part configured to connect in series with a source electrode of a first semiconductor element; and a second inductor part configured to connect in series with a source electrode in a second semiconductor element that is configured to connect in parallel with the first semiconductor element; the first inductor part and the second inductor part are arranged to generate an induced electromotive force in the first inductor part and the second inductor part by way of a magnetic interaction so that the currents flowing in the first inductor part and the second inductor part are reinforced in the same direction.
    Type: Application
    Filed: December 16, 2020
    Publication date: February 9, 2023
    Inventors: Noriyuki NOSAKA, Chen CHEN, Takanori ISHII, Wataru OKADA
  • Patent number: 11552550
    Abstract: A voltage balance circuit including first and second semiconductor devices connected in series with each other is provided with a first transformer having a primary winding and a secondary winding, a second transformer having a primary winding and a secondary winding. A pair of capacitors connected in series with each other and connected between the output terminals of the plurality of semiconductor devices. A first control signal is applied to the control electrode of the first semiconductor device via the primary winding of the first transformer. A second control signal is applied to the control electrode of the second semiconductor device via the primary winding of the second transformer, with one end of each secondary winding connected to each other.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: January 10, 2023
    Assignee: OMRON CORPORATION
    Inventors: Noriyuki Nosaka, Wataru Okada, Chen Chen, Takanori Ishii
  • Patent number: 11496125
    Abstract: A driver circuit controls a first switch element. A first resistor is connected between the driver circuit and the first switch element. A second switch element is connected to the first switch element. An overcurrent detector circuit controls the second switch element based on an overcurrent current flowing through the first switch element. A second resistor is connected between the overcurrent detector circuit and the second switch element. The first and second resistor is set such that a turn-off time of the first switch element when the second switch element is turned on by the overcurrent detector circuit is longer than a turn-off time of the first switch element when the first switch element is turned off by the driver circuit.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: November 8, 2022
    Assignee: OMRON CORPORATION
    Inventors: Wataru Okada, Satoshi Iwai, Noriyuki Nosaka, Takeo Nishikawa, Kenji Kobayashi, Keiji Shiraishi
  • Publication number: 20220294041
    Abstract: An exterior package, a main body portion, and a detection unit are provided. The main body portion is disposed inside the exterior package. The detection unit detects a state of a power storage cell and performs wireless communication, at least a portion of the detection unit being disposed inside the exterior package.
    Type: Application
    Filed: February 25, 2022
    Publication date: September 15, 2022
    Applicant: PRIME PLANET ENERGY & SOLUTIONS, INC.
    Inventors: Naotake YOSHIDA, Yusuke FUJII, Mitsutoshi TAJIMA, Wataru OKADA, Satoru MATSUYAMA, Kensaku FUKUMOTO, Junya YANO
  • Publication number: 20220263182
    Abstract: A method of manufacturing a power storage module includes: stacking a plurality of power storage cells along a first direction; compressing the plurality of power storage cells along the first direction; aligning the plurality of power storage cells in a second direction orthogonal to the first direction after relieving pressing force of the compressing; compressing the plurality of power storage cells along the first direction after aligning the plurality of power storage cells in the second direction; disposing a restraint portion on both sides in the first direction with respect to the plurality of power storage cells under application of pressing force of the compressing; and restraining the plurality of power storage cells by the restraint portion along the first direction by relieving, after disposing the restraint portion, the pressing force of the compressing.
    Type: Application
    Filed: February 15, 2022
    Publication date: August 18, 2022
    Inventors: Wataru OKADA, Seiichi SAKURAMOTO
  • Publication number: 20220255203
    Abstract: A first conductor is provided on a bottom portion and is electrically connected to a power storage module. A second conductor is provided on the bottom portion side of a cover portion and can be brought into contact with and separated from the first conductor. When the first conductor and the second conductor are brought into contact with each other to close the opening/closing mechanism in a state in which the cover portion is attached to the bottom portion, power is supplied from the power storage module through the power supply path. When the first conductor and the second conductor are separated from each other to open the opening/closing mechanism in a state in which the cover portion is detached from the bottom portion, the supply of power from the power storage module through the power supply path is interrupted.
    Type: Application
    Filed: February 7, 2022
    Publication date: August 11, 2022
    Inventors: Satoru MATSUYAMA, Naotake YOSHIDA, Wataru OKADA