Patents by Inventor Yuichi Koike

Yuichi Koike 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: 20260307536
    Abstract: A temperature adjustment system includes: a battery; a first heat medium passage for performing heat exchange with the battery; a drive motor; a second heat medium passage for performing heat exchange with the drive motor; a refrigerant passage through which a refrigerant circulates; a third heat medium passage for performing heat exchange with the refrigerant; and one multi-way switching valve opening and closing respective inlets and outlets of the first heat medium passage, the second heat medium passage, and the third heat medium passage. An electric heater heating a heat medium is disposed at the first heat medium passage upstream of the battery. At a predetermined mixing switching position, the multi-way switching valve mixes at least the heat medium flowing through the first heat medium passage and the heat medium flowing through the second heat medium passage to mix the heat media having state quantities different from each other.
    Type: Application
    Filed: January 15, 2026
    Publication date: October 8, 2026
    Applicant: MIKUNI CORPORATION
    Inventors: Yuichi KOIKE, Kazufumi YOSHIYA, Shoichi ISHIGUCHI, Tomonori KAKIZOE
  • Publication number: 20260309240
    Abstract: A multi-way switching valve device includes: a base member having a cylindrical recess centered on a predetermined axis and a plurality of openings formed on an inner circumferential surface of the cylindrical recess within an angle range narrower than a half circumference to define an inlet and an outlet of each of a plurality of fluid passages; a columnar multi-way switching valve having a plurality of hollowed-out passage parts on an outer circumferential surface and rotatably disposed around the axis in the cylindrical recess to perform opening and closing operations of the plurality of openings; a seal member disposed between the inner circumferential surface and the outer circumferential surface corresponding to the angle range; and a spacer member disposed between the inner circumferential surface and the outer circumferential surface in a region on an opposite side of the seal member across the axis.
    Type: Application
    Filed: December 31, 2025
    Publication date: October 8, 2026
    Applicant: MIKUNI CORPORATION
    Inventors: Shoichi ISHIGUCHI, Kazufumi YOSHIYA, Yuichi KOIKE, Tomonori KAKIZOE
  • Publication number: 20260307465
    Abstract: A temperature adjustment system includes: a battery; a first heat medium passage for heat exchange with the battery; a drive motor; a second heat medium passage for heat exchange with the drive motor; a refrigerant passage; a third heat medium passage for heat exchange with a refrigerant; and a multi-way switching valve opening and closing respective inlets and outlets of the first heat medium passage to the third heat medium passage. An electric heater is disposed at the first heat medium passage. At a predetermined switching position, the multi-way switching valve causes the first heat medium passage to form a closed loop passage to heat the battery by heat generated by the electric heater, and causes the second heat medium passage and the third heat medium passage to communicate with each other to form a closed loop passage to heat the refrigerant by heat generated by the drive motor.
    Type: Application
    Filed: January 20, 2026
    Publication date: October 8, 2026
    Applicant: MIKUNI CORPORATION
    Inventors: Yuichi KOIKE, Kazufumi YOSHIYA, Shoichi ISHIGUCHI, Tomonori KAKIZOE
  • Publication number: 20260309242
    Abstract: A multi-way switching valve device includes: a base member defining a first inlet and a first outlet of a first fluid passage, a second inlet and a second outlet of a second fluid passage, a third inlet and a third outlet of a third fluid passage, and a fourth inlet and a fourth outlet of a fourth fluid passage; and a multi-way switching valve rotatably disposed on the base member and performing switching operation among switching positions to open and close the first to the fourth inlets and the first to the fourth outlets. The valve, at a mixed switching position included in the switching positions, causes fluid flowing out from the first outlet to flow into the first inlet and the second inlet, and causes fluid flowing out from the second outlet to flow into the second inlet and the first inlet.
    Type: Application
    Filed: January 21, 2026
    Publication date: October 8, 2026
    Applicant: MIKUNI CORPORATION
    Inventors: Yuichi KOIKE, Kazufumi YOSHIYA, Shoichi ISHIGUCHI, Tomonori KAKIZOE
  • Patent number: 12627559
    Abstract: A processor acquires a current change request of a network virtualization environment, and automatically rejects the current change request if a determination criterion that satisfies a value of a comparison item in the current change request is not detected in a determination criterion management database. If the determination criterion that satisfies the value of the comparison item is detected, the processor searches for a past change record that satisfies the determination criterion (execution result of the past change of the same type). If the execution result of the past change is not detected, the processor automatically rejects the current change request. If the execution result of the past change is detected, the processor automatically approves the current change request when a predetermined condition related to the execution result of the past change is satisfied, but automatically rejects the current change request when the predetermined condition is not satisfied.
    Type: Grant
    Filed: June 27, 2024
    Date of Patent: May 12, 2026
    Assignee: Rakuten Mobile, Inc.
    Inventors: Masaaki Kosugi, Yuichi Koike
  • Publication number: 20250293922
    Abstract: A processor acquires a current change request of a network virtualization environment, and automatically rejects the current change request if a determination criterion that satisfies a value of a comparison item in the current change request is not detected in a determination criterion management database. If the determination criterion that satisfies the value of the comparison item is detected, the processor searches for a past change record that satisfies the determination criterion (execution result of the past change of the same type). If the execution result of the past change is not detected, the processor automatically rejects the current change request. If the execution result of the past change is detected, the processor automatically approves the current change request when a predetermined condition related to the execution result of the past change is satisfied, but automatically rejects the current change request when the predetermined condition is not satisfied.
    Type: Application
    Filed: June 27, 2024
    Publication date: September 18, 2025
    Applicant: Rakuten Mobile, Inc.
    Inventors: Masaaki KOSUGI, Yuichi KOIKE
  • Publication number: 20210365926
    Abstract: A settlement system performs on-line settlement and off-line settlement by switching between them, while reducing risk to the business side and not causing a user making payment to be aware of the switching. A terminal device includes selection means for comparing a payment amount with a set amount read from a recording medium and for selecting between off-line processing and on-line processing, depending on a result of the comparison, off-line processing means for performing a process of subtracting the payment amount from the set amount recorded in the recording medium and a process of sending the payment amount to a server device; and on-line processing means for performing a process of sending the payment amount to the server device and a process of updating the set amount when having received an update value.
    Type: Application
    Filed: August 5, 2021
    Publication date: November 25, 2021
    Applicant: NEC Corporation
    Inventors: Yuichi KOIKE, Saburo SHIOTA
  • Patent number: 11126996
    Abstract: A terminal device includes selection means for comparing a payment amount with a set amount read from a recording medium and for selecting between off-line processing and on-line processing, depending on a result of the comparison, off-line processing means for subtracting the payment amount from the set amount recorded in the recording medium and sending the payment amount to a server device; and on-line processing means for sending the payment amount to the server device and updating the set amount when having received an update value. A server device includes server processing means for receiving the payment amount from a terminal device and subtracting the payment amount from a balance of an account corresponding to the recording medium, and in a case of the on-line processing, sending the update value to the terminal device.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: September 21, 2021
    Assignee: NEC CORPORATION
    Inventors: Yuichi Koike, Saburo Shiota
  • Publication number: 20180308089
    Abstract: A settlement system performs on-line settlement and off-line settlement by switching between them, while reducing risk to the business side and not causing a user making payment to be aware of the switching, A terminal device includes selection means for comparing a payment amount with a set amount read from a recording medium and for selecting between off-line processing and on-line processing, depending on a result of the comparison, off-line processing means for performing a process of subtracting the payment amount from the set amount recorded in the recording medium and a process of sending the payment amount to a server device; and on-line processing means for performing a process of sending the payment amount to the server device and a process of updating the set amount when having received an update value.
    Type: Application
    Filed: June 29, 2018
    Publication date: October 25, 2018
    Inventors: Yuichi KOIKE, Saburo SHIOTA
  • Patent number: 10050979
    Abstract: The validity/invalidity of a credit card, an IC card storing electronic money, or the like is appropriately determined based on a blacklist. A terminal device includes a list storage means and an invalidity recording means. The list storage means stores an identifier, validity information indicating validity or invalidity, and a blacklist that relates the identifier to an invalidity count specification value for a recording medium storing a set value. The invalidity recording means reads from the blacklist, the invalidity count specification value related to the identifier read from the recording medium, and compares the invalidity count specification value with the set value read from the recording medium. The invalidity recording means executes predetermined processing based on the validity information for the recording medium when the set value is equal to the invalidity count specification value.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: August 14, 2018
    Assignee: NEC CORPORATION
    Inventors: Saburo Shiota, Yuichi Koike
  • Patent number: 10032158
    Abstract: A settlement system includes a server device and a terminal device. The terminal device is configured to compare a payment amount with a set amount stored in a recording medium; if the payment amount is equal to or less than the set amount, perform an off-line process; and if the payment amount is larger than the set amount, perform an on-line process. In the off-line process, the terminal device rewrites the set amount stored in the recording medium by subtracting the payment amount from the set amount; and sends the payment amount to the server device for further processing. In the on-line process, the terminal device sends the payment amount to the server device; determines whether an update value is received from the server device; and when the update value is received, rewrites the set amount stored in the recording medium to be the update value.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: July 24, 2018
    Assignee: NEC Corporation
    Inventors: Yuichi Koike, Saburo Shiota
  • Publication number: 20160210619
    Abstract: A blacklist updating technique capable of efficiently preventing illegal use is provided. A terminal device includes a list storage means for storing a blacklist including invalidated identifiers, a processing means for checking, when an amount of money and the identifier are inputted, whether the input identifier is included in the blacklist in the list storage means and, when not included, executing a predetermined process using the amount of money and accumulating a predetermined value to obtain a cumulative value, and a list updating means for receiving update data from a server device to update the blacklist in the list storage means when the cumulative value is larger than a predetermined threshold.
    Type: Application
    Filed: August 21, 2014
    Publication date: July 21, 2016
    Applicant: NEC Corporation
    Inventors: SABURO SHIOTA, YUICHI KOIKE
  • Publication number: 20160210625
    Abstract: A terminal device for making it easy to reuse an IC card 3 on which validity information indicating invalid has been written by being once invalidated is provided. The terminal device includes a list storage means and a recording means. The list storage means stores a whitelist associating an invalid count identifying value of a recording medium that stores an identifier, validity information indicating valid or invalid, and a setting value with the identifier. The recording means reads out, from the whitelist, the invalid count identifying value corresponding to the identifier read out from the recording medium, compares the invalid count identifying value with the setting value read out from the recording medium, and executes a validation process that stores the validity information indicating valid on the recording medium and a predetermined process when the setting value is equal to the invalid count identifying value.
    Type: Application
    Filed: August 21, 2014
    Publication date: July 21, 2016
    Inventors: Saburo Shiota, Yuichi Koike
  • Publication number: 20160171485
    Abstract: A settlement system performs on-line settlement and off-line settlement by switching between them, while reducing risk to the business side and not causing a user making payment to be aware of the switching. A terminal device includes selection means for comparing a payment amount with a set amount read from a recording medium and for selecting between off-line processing and on-line processing, depending on a result of the comparison, off-line processing means for performing a process of subtracting the payment amount from the set amount recorded in the recording medium and a process of sending the payment amount to a server device; and on-line processing means for performing a process of sending the payment amount to the server device and a process of updating the set amount when having received an update value.
    Type: Application
    Filed: July 10, 2013
    Publication date: June 16, 2016
    Inventors: Yuichi KOIKE, Saburo SHIOTA
  • Publication number: 20160142421
    Abstract: The validity/invalidity of a credit card, an IC card storing electronic money, or the like is appropriately determined based on a blacklist. A terminal device includes a list storage means and an invalidity recording means. The list storage means stores an identifier, validity information indicating validity or invalidity, and a blacklist that relates the identifier to an invalidity count specification value for a recording medium storing a set value. The invalidity recording means reads from the blacklist, the invalidity count specification value related to the identifier read from the recording medium, and compares the invalidity count specification value with the set value read from the recording medium. The invalidity recording means executes predetermined processing based on the validity information for the recording medium when the set value is equal to the invalidity count specification value.
    Type: Application
    Filed: June 17, 2014
    Publication date: May 19, 2016
    Inventors: Saburo SHIOTA, Yuichi KOIKE
  • Patent number: 8762240
    Abstract: An electronic value exchange system which includes first and second terminals (1d), (1e) which at least execute electronic value exchange with each other, and an authentication device (110), each of the first and second terminals has a value storage unit (13) which stores the electronic value; an exchange contract data storage unit (17) which stores exchange contract data representing contents of the electronic value exchange; an exchange state storage unit (16) which represents a state of the electronic value exchange; a commit order storage unit (14) which stores a commit order which indicates that which of the first terminal and the second terminal is the first to execute; an identification information storage unit (15) which stores identification information assigned to every process of transmission/reception of the exchange contract data; and a first exchange execution unit (12) which executes transmission/reception of the exchange contract data with respect to each of the first and second terminals and
    Type: Grant
    Filed: November 18, 2008
    Date of Patent: June 24, 2014
    Assignee: NEC Corporation
    Inventors: Takushi Sogo, Yuichi Koike
  • Patent number: 8519657
    Abstract: A motor system includes detecting a duration of idle stop by an idle stop end state detection unit when the idle stop mode of the fuel cell ends; estimating recovery time taken for total voltage of the fuel cell to reach voltage at the idle operation by a fuel cell stack total voltage recovery time estimation unit based on the detected duration; and correcting and reducing a changing rate of the drive motor request torque by the drive motor request torque reduction correction unit based on the estimated recovery time.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: August 27, 2013
    Assignee: Nissan Motor Co., Ltd.
    Inventor: Yuichi Koike
  • Publication number: 20120143424
    Abstract: A motor system includes detecting a duration of idle stop by an idle stop end state detection unit when the idle stop mode of the fuel cell ends; estimating recovery time taken for total voltage of the fuel cell to reach voltage at the idle operation by a fuel cell stack total voltage recovery time estimation unit based on the detected duration; and correcting and reducing a changing rate of the drive motor request torque by the drive motor request torque reduction correction unit based on the estimated recovery time.
    Type: Application
    Filed: February 13, 2012
    Publication date: June 7, 2012
    Inventor: Yuichi KOIKE
  • Patent number: 8134320
    Abstract: A motor system includes a drive motor configured to generate a drive force using power supplied from a fuel cell; an idle control unit configured to operate the fuel cell intermittently between an idle operation mode and an idle stop mode; a state detection unit configured to detect a state of the fuel cell when the idle stop mode of the fuel cell ends; a recovery time estimation unit configured to estimate a recovery time taken for total voltage of the fuel cell to reach voltage at the idle operation based on the state of the fuel cell detected by the state detection unit; and a control unit configured to perform a correction control for torque of the drive motor based on the recovery time estimated by the recovery time estimation unit.
    Type: Grant
    Filed: August 10, 2007
    Date of Patent: March 13, 2012
    Assignee: Nissan Motor Co., Ltd.
    Inventor: Yuichi Koike
  • Publication number: 20110307022
    Abstract: [Problem to be Solved] A compact and light weight, and inexpensive blood oxidation inhibiting apparatus which uses fluid activating bodies, being capable of inhibiting oxidative stress on the blood of a human body is provided.
    Type: Application
    Filed: June 10, 2011
    Publication date: December 15, 2011
    Inventors: Katsuyuki Kumano, Naomasa Yamamoto, Norifumi Yonehara, Yuichi Koike