Patents by Inventor Yuuki Ogata

Yuuki Ogata 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: 20240109826
    Abstract: A composition containing: a compound (2); a metal compound; and at least one selected from a compound (3) and a compound (4), the compound (3) being contained in an amount of 10000 ppm or less relative to the compound (2), the compound (4) being contained in an amount of 10000 ppm or less relative to the compound (2), the compound (2) being represented by the following formula (2): the compound (3) being represented by the following formula (3): and the compound (4) being represented by the following formula (4): wherein the various substituents of compounds (2), (3) and (4) are as defined herein.
    Type: Application
    Filed: November 9, 2023
    Publication date: April 4, 2024
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Yuuki SUZUKI, Akitoshi OGATA, Asako YOSHIYAMA, Makoto MATSUURA, Yoshichika KUROKI, Yosuke KISHIKAWA
  • Publication number: 20210382760
    Abstract: A resource adjustment device includes a memory, and a processor coupled to the memory and the processor configured to set a ranking to each of a plurality of first virtual machines according to an amount of resource used by each of the plurality of first virtual machines in operation, and allocate the resource of the first virtual machine having a highest of the ranking to a second virtual machine before starting.
    Type: Application
    Filed: March 3, 2021
    Publication date: December 9, 2021
    Applicant: FUJITSU LIMITED
    Inventors: Toru Nakayama, Yuuki Ogata
  • Patent number: 10735177
    Abstract: An optical transmitting device includes a plurality of transmitters configured to be arranged so as to correspond to a plurality of channels, the transmitters each reproducing a clock from an input data signal, and outputting the data signal identified and reproduced based on the reproduced clock to a light emitting element and a processor configured to control phase difference between the output data signals based on a result of comparison between phases of the reproduced clocks.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: August 4, 2020
    Assignee: FUJITSU LIMITED
    Inventors: Yuuki Ogata, Takashi Shiraishi
  • Patent number: 10720996
    Abstract: A frequency characteristic adjustment circuit is disclosed. The frequency characteristic adjustment circuit is disposed between an optical circuit element and a drive circuit for driving the optical circuit element. A capacitor is connected to an output of the drive circuit. A current supply circuit is controlled by a voltage generated by the drive circuit. The current supply circuit supplies a different current value depending on a voltage received from the drive circuit to the optical circuit element.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: July 21, 2020
    Assignee: FUJITSU LIMITED
    Inventors: Toshihiko Mori, Yuuki Ogata
  • Publication number: 20200028661
    Abstract: An optical transmitting device includes a plurality of transmitters configured to be arranged so as to correspond to a plurality of channels, the transmitters each reproducing a clock from an input data signal, and outputting the data signal identified and reproduced based on the reproduced clock to a light emitting element and a processor configured to control phase difference between the output data signals based on a result of comparison between phases of the reproduced clocks.
    Type: Application
    Filed: July 1, 2019
    Publication date: January 23, 2020
    Applicant: FUJITSU LIMITED
    Inventors: Yuuki Ogata, Takashi Shiraishi
  • Patent number: 10409322
    Abstract: A serial-parallel conversion circuit includes: a phase detector that outputs a first phase detection signal indicating whether a phase of a clock signal is advance or behind, a signal amplifying circuit that amplifies the first phase detection signal with a gain so as to output a second phase detection signal; a control loop that adjusts the phase of the clock signal based on the second phase detection signal; an autocorrelation circuit that generates an autocorrelation value based on the first phase detection signal and a set delay amount, and outputs an autocorrelation signal indicating the autocorrelation value; a gain adjusting circuit that adjusts the gain in such a manner that the autocorrelation value matches a target correlation value; and a delay-amount determination circuit that sets a delay amount corresponding to a peak value of an obtained autocorrelation value obtained when the autocorrelation value changes in an oscillatory manner.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: September 10, 2019
    Assignee: FUJITSU LIMITED
    Inventors: Joshua Liang, Ali Sheikholeslami, Yuuki Ogata, Hirotaka Tamura
  • Patent number: 10367583
    Abstract: There is provided a driver circuit including a variable current-source configured to include, a first current-source coupled to a first input node to which a first signal is input from an external, a second current-source coupled to a second input node to which a second signal as an inversion of the first signal is input from the external, a first bypass circuit coupled between the first current-source and the first input node, the first bypass circuit being switched according to the second signal, and a second bypass circuit coupled between the second current-source and the second input node, the second bypass circuit being switched according to the first signal, and a terminal circuit configured to be terminated for an optical device driven by a drive signal according to the first signal, the drive signal being output from an output node coupled between the terminal circuit and the variable current-source.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: July 30, 2019
    Assignee: FUJITSU LIMITED
    Inventors: Yuuki Ogata, Toshihiko Mori, Yasufumi Sakai
  • Patent number: 10256999
    Abstract: Disclosed is a frequency characteristic adjusting circuit disposed between an optical circuit element and a drive circuit driving the optical circuit element. The frequency characteristic adjusting circuit includes a capacitor, and two or more series circuits having a resistor and a switch, the two or more series circuits being connected in parallel with the capacitor, where resistance with respect to the switch that is turned on is changed according to an output voltage of the drive circuit by changing ON or OFF of the switch such that electric charge at a contact point between the optical circuit element and the capacitor is adjusted to be constant regardless of the output voltage of the drive circuit.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: April 9, 2019
    Assignee: FUJITSU LIMITED
    Inventors: Yuuki Ogata, Toshihiko Mori
  • Publication number: 20180337732
    Abstract: There is provided a driver circuit including a variable current-source configured to include, a first current-source coupled to a first input node to which a first signal is input from an external, a second current-source coupled to a second input node to which a second signal as an inversion of the first signal is input from the external, a first bypass circuit coupled between the first current-source and the first input node, the first bypass circuit being switched according to the second signal, and a second bypass circuit coupled between the second current-source and the second input node, the second bypass circuit being switched according to the first signal, and a terminal circuit configured to be terminated for an optical device driven by a drive signal according to the first signal, the drive signal being output from an output node coupled between the terminal circuit and the variable current-source.
    Type: Application
    Filed: May 3, 2018
    Publication date: November 22, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Yuuki Ogata, Toshihiko Mori, Yasufumi Sakai
  • Publication number: 20180224885
    Abstract: A serial-parallel conversion circuit includes: a phase detector that outputs a first phase detection signal indicating whether a phase of a clock signal is advance or behind, a signal amplifying circuit that amplifies the first phase detection signal with a gain so as to output a second phase detection signal; a control loop that adjusts the phase of the clock signal based on the second phase detection signal; an autocorrelation circuit that generates an autocorrelation value based on the first phase detection signal and a set delay amount, and outputs an autocorrelation signal indicating the autocorrelation value; a gain adjusting circuit that adjusts the gain in such a manner that the autocorrelation value matches a target correlation value; and a delay-amount determination circuit that sets a delay amount corresponding to a peak value of an obtained autocorrelation value obtained when the autocorrelation value changes in an oscillatory manner.
    Type: Application
    Filed: January 31, 2018
    Publication date: August 9, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Joshua Liang, Ali Sheikholeslami, Yuuki Ogata, Hirotaka TAMURA
  • Patent number: 9993901
    Abstract: A boot band for fixing a boot that is mounted to a constant velocity universal joint is clamped. The boot band and the constant velocity universal joint are aligned in phase with each other in a circumferential direction. An axial position of a clamping portion is thereafter aligned with an axial position of the boot band. Then, the boot band is clamped by the clamping portion.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: June 12, 2018
    Assignee: NTN CORPORATION
    Inventors: Hiroshi Hatano, Nao Ishiyama, Shinya Inui, Yuuki Ogata
  • Publication number: 20180054258
    Abstract: A frequency characteristic adjustment circuit is disclosed. The frequency characteristic adjustment circuit is disposed between an optical circuit element and a drive circuit for driving the optical circuit element. A capacitor is connected to an output of the drive circuit. A current supply circuit is controlled by a voltage generated by the drive circuit. The current supply circuit supplies a different current value depending on a voltage received from the drive circuit to the optical circuit element.
    Type: Application
    Filed: July 14, 2017
    Publication date: February 22, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Toshihiko Mori, Yuuki Ogata
  • Publication number: 20180054331
    Abstract: Disclosed is a frequency characteristic adjusting circuit disposed between an optical circuit element and a drive circuit driving the optical circuit element. The frequency characteristic adjusting circuit includes a capacitor, and two or more series circuits having a resistor and a switch, the two or more series circuits being connected in parallel with the capacitor, where resistance with respect to the switch that is turned on is changed according to an output voltage of the drive circuit by changing ON or OFF of the switch such that electric charge at a contact point between the optical circuit element and the capacitor is adjusted to be constant regardless of the output voltage of the drive circuit.
    Type: Application
    Filed: July 7, 2017
    Publication date: February 22, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Yuuki Ogata, Toshihiko Mori
  • Patent number: 9813188
    Abstract: A transmitting circuit includes: a multiplexer configured to output a third digital signal obtained by alternately synthesizing a first digital signal of a predetermined cycle length and a predetermined data rate with a second digital signal of the predetermined cycle length and the predetermined data rate; a first selector configured to output the first digital signal in a first state and output the third digital signal in a second state that is different from the first state; a second selector configured to output the second digital signal in the first state and output the third digital signal in the second state; a first driver circuit configured to output a signal corresponding to a signal output from the first selector; and a second driver circuit configured to output a signal corresponding to a signal output from the second selector.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: November 7, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Yuuki Ogata, Yoichi Koyanagi
  • Patent number: 9755663
    Abstract: A parallel-serial conversion circuit including a data transmission unit to output first data and second data of a prescribed pattern in accordance with a second clock obtained by dividing a first clock, a first flip flop to receive the first data so as to output the first data in accordance with the first clock, a second flip flop to receive the second data so as to output the second data in accordance with the first clock, a selector to select one of the first data and the second data so as to output the selected data in accordance with the first clock, and an adjustment unit to compare the second data to be received by the second flip flop and the first data output from the first flip flop so as to adjust, based on a comparison result, a timing for the first flip flop to receive the first data.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: September 5, 2017
    Assignee: FUJITSU LIMITED
    Inventor: Yuuki Ogata
  • Publication number: 20170244426
    Abstract: A parallel-serial conversion circuit including a data transmission unit to output first data and second data of a prescribed pattern in accordance with a second clock obtained by dividing a first clock, a first flip flop to receive the first data so as to output the first data in accordance with the first clock, a second flip flop to receive the second data so as to output the second data in accordance with the first clock, a selector to select one of the first data and the second data so as to output the selected data in accordance with the first clock, and an adjustment unit to compare the second data to be received by the second flip flop and the first data output from the first flip flop so as to adjust, based on a comparison result, a timing for the first flip flop to receive the first data.
    Type: Application
    Filed: December 20, 2016
    Publication date: August 24, 2017
    Applicant: FUJITSU LIMITED
    Inventor: Yuuki Ogata
  • Patent number: 9684332
    Abstract: A timing control circuit includes a first variable-delay circuit, a multiplexer, a second variable-delay circuit, a decision circuit, and a control circuit. The first variable-delay circuit receives first data having a first communication speed and delays the first data by a variable delay. The multiplexer receives a first variable-delay circuit output and converts, based on a first control signal, the first data into second data having a second communication speed different from the first communication speed. The second variable-delay circuit receives third data having the first communication speed, and delays the third data by another variable-delay corresponding to the variable-delay of the first variable-delay circuit. The decision circuit compares a second variable-delay circuit output phase and a first control signal phase.
    Type: Grant
    Filed: February 11, 2014
    Date of Patent: June 20, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Yuuki Ogata, Yoichi Koyanagi
  • Patent number: 9683915
    Abstract: Provided is an inspection device, including: pressurizing means for pressurizing an outer member of a rolling bearing toward an inner member of the rolling bearing, the rolling bearing including the outer member and the inner member rotatable relative to each other through intermediation of balls; rotary drive means for rotating the inner member about an axial center of the inner member under a state in which the outer member is pressurized toward the inner member; detecting means for detecting vibration generated along with the rotation of the inner member so that whether or not the rolling bearing is an accepted product is determined based on values obtained through the detection; and vibration control means to be interposed between the outer member and the pressurizing means, the vibration control means including a holding portion configured to hold the detecting means in a fixed manner.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: June 20, 2017
    Assignee: NTN CORPORATION
    Inventor: Yuuki Ogata
  • Patent number: 9512883
    Abstract: A method for manufacturing a wheel bearing apparatus by measuring a distance Ho, Hi and Hh. A difference ?H=(Hi+Hh?Ho) is compared with a reference value of a model article. Rolling elements are selected with each having an optimum diameter to correct the difference ?H between the measured values and the reference values.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: December 6, 2016
    Assignee: NTN Corporation
    Inventors: Yuuki Ogata, Tomoaki Sawada, Masami Ishiyama, Shinya Okada
  • Publication number: 20160325389
    Abstract: A boot band for fixing a boot that is mounted to a constant velocity universal joint is clamped. The boot band and the constant velocity universal joint are aligned in phase with each other in a circumferential direction. An axial position of a clamping portion is thereafter aligned with an axial position of the boot band. Then, the boot band is clamped by the clamping portion.
    Type: Application
    Filed: July 22, 2016
    Publication date: November 10, 2016
    Applicant: NTN Corporation
    Inventors: Hiroshi HATANO, Nao ISHIYAMA, Shinya INUI, Yuuki OGATA