Patents by Inventor Tomoki KATOU
Tomoki KATOU 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).
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Publication number: 20230286149Abstract: Provided is a robot control system which enables a user to easily understand correspondence between a program for a higher-level controller and an operation program for a robot control device. A robot control system 100 comprises a higher-level controller 20 and a robot control device 50. The higher-level controller 20 includes a control execution unit 22 that transmits, to the robot control device 50, command information indicating an operation command to a robot, position data accompanying the operation command, and name information indicating the name of the position data, according to a control program for controlling the robot. The robot control device 50 includes a program production unit 51 that produces an operation program for the robot on the basis of the received command information and position data, and a name information addition unit 52 that adds the received name to the position data in the operation program.Type: ApplicationFiled: August 16, 2021Publication date: September 14, 2023Inventor: Tomoki Katou
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Publication number: 20230219224Abstract: Provided is a robot control device that makes it possible to perform high-level operations on a robot from an external device. The robot control device for controlling a robot, includes: a digital input/output interface for transmitting/receiving digital data to/from an external device; a program generation unit which generates an action command for the robot in accordance with command identification data included in digital data inputted via the digital input/output interface; and a program execution unit which executes the generated action command.Type: ApplicationFiled: May 13, 2021Publication date: July 13, 2023Inventor: Tomoki KATOU
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Publication number: 20220251335Abstract: Described herein is a resin composition containing an inorganic filler, a thermosetting resin, and a thermosetting catalyst. The inorganic filler contains an aggregated inorganic filler; the thermosetting resin contains an epoxy resin; and the thermosetting catalyst contains two or more kinds of thermosetting catalysts having a melting point of 100° C. or higher. Also described are a resin cured product formed of the resin composition, a composite molded product including the resin cured product and a metal, and a semiconductor device including the composite molded product.Type: ApplicationFiled: April 26, 2022Publication date: August 11, 2022Applicant: Mitsubishi Chemical CorporationInventors: Akinori KIMURA, Toshiyuki TANAKA, Thi Kim Phuong DAO, Tomoki KATOU
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Publication number: 20210069911Abstract: To provide a robot controller configured to reliably receive data from a robot even when there is a shield. A robot controller receives a signal transmitted by a wireless device mounted to a robot that is a control target. The signal includes data of an operating state of the robot. The robot controller includes: a first receiving unit that receives the signal including the data from the wireless device; a transfer unit that, in a case in which the signal received by the first receiving unit is a signal from other robot not to be controlled, transfers the signal to other robot controller controlling the other robot; a second receiving unit that receives the signal transferred from the other robot controller; and a signal processing unit that processes the signal received by the first receiving unit and/or the signal received by the second receiving unit.Type: ApplicationFiled: August 12, 2020Publication date: March 11, 2021Inventor: Tomoki KATOU
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Publication number: 20200338737Abstract: A robot teaching device includes a display device, a microphone, a voice recognition section configured to perform voice recognition processing on a voice signal and output character information representative of the voice, a correspondence storage configured to store information associating each of a plurality of types of operating screens with a recognition target word according to robot teaching, a recognition target word extracting section configured to extract, from the information stored in the correspondence storage, one or more recognition target words having a predetermined relevance to a word representative of the character information, and a screen list display unit configured to generate, on the basis of the information stored in the correspondence storage, an image showing a list of one or more operating screens corresponding to one or more recognition target words thus extracted, and display the image on the display device.Type: ApplicationFiled: April 3, 2020Publication date: October 29, 2020Applicant: Fanuc CorporationInventor: Tomoki Katou
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Patent number: 10639799Abstract: A robot system includes: a robot that is movable according to an external force applied thereto by a worker; a force detecting unit that is provided in the robot and that detects the magnitude of an external force acting on the robot; a warning part that vibrates the robot when an external force having a magnitude equal to or greater than a first predetermined threshold is detected by the force detecting unit; and a stop part that stops the robot when an external force having a magnitude equal to or greater than a second predetermined threshold that is greater than the first predetermined threshold is detected by the force detecting unit.Type: GrantFiled: September 19, 2018Date of Patent: May 5, 2020Assignee: FANUC CORPORATIONInventors: Tomoki Katou, Tomoyuki Yamamoto, Takeaki Aramaki
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Publication number: 20190235229Abstract: A micro electro mechanical systems (MEMS) control circuit includes a memory and a processor coupled to the memory and the processor configured to obtain an amplitude mean value of a monitor signal representing an amplitude in a direction of a horizontal axis of an MEMS device every unit time, compare the amplitude mean value with a reference value, and change a driving frequency of the MEMS device in a case where identical comparison results last consecutively a predetermined number of times.Type: ApplicationFiled: January 15, 2019Publication date: August 1, 2019Applicant: FUJITSU LIMITEDInventors: Yusuke UJIIE, Akiko FURUYA, TOMOKI KATOU, Nobuaki Kawasoe
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Patent number: 10362282Abstract: A drive circuit for supplying a drive current to light emitting elements includes an output circuit that sets a magnitude of the drive current based on an assumed value of a threshold current being a threshold value of the drive current, an acquisition circuit that acquires an optical-output monitor value indicating a magnitude of an optical output of the light emitting elements, a first calculation circuit that calculates an average value of the drive current in a predetermined period in a frame period as an average drive current value for each of the predetermined period, a second calculation circuit that calculates an average value of the optical-output monitor values in the predetermined period as an average optical-output monitor value, and an adjustment circuit that adjusts the assumed value of the threshold current value based on the average drive current value and the average optical-output monitor value.Type: GrantFiled: March 2, 2018Date of Patent: July 23, 2019Assignee: FUJITSU LIMITEDInventors: Akiko Furuya, Nobuaki Kawasoe, Tomoki Katou, Hiromi Fukino, Yusuke Ujiie, Shuhei Hatae
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Publication number: 20190091873Abstract: A robot system includes: a robot that is movable according to an external force applied thereto by a worker; a force detecting unit that is provided in the robot and that detects the magnitude of an external force acting on the robot; a warning part that vibrates the robot when an external force having a magnitude equal to or greater than a first predetermined threshold is detected by the force detecting unit; and a stop part that stops the robot when an external force having a magnitude equal to or greater than a second predetermined threshold that is greater than the first predetermined threshold is detected by the force detecting unit.Type: ApplicationFiled: September 19, 2018Publication date: March 28, 2019Inventors: Tomoki KATOU, Tomoyuki YAMAMOTO, Takeaki ARAMAKI
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Publication number: 20180288377Abstract: A drive circuit for supplying a drive current to light emitting elements includes an output circuit that sets a magnitude of the drive current based on an assumed value of a threshold current being a threshold value of the drive current, an acquisition circuit that acquires an optical-output monitor value indicating a magnitude of an optical output of the light emitting elements, a first calculation circuit that calculates an average value of the drive current in a predetermined period in a frame period as an average drive current value for each of the predetermined period, a second calculation circuit that calculates an average value of the optical-output monitor values in the predetermined period as an average optical-output monitor value, and an adjustment circuit that adjusts the assumed value of the threshold current value based on the average drive current value and the average optical-output monitor value.Type: ApplicationFiled: March 2, 2018Publication date: October 4, 2018Applicant: FUJITSU LIMITEDInventors: Akiko FURUYA, Nobuaki Kawasoe, TOMOKI KATOU, Hiromi FUKINO, Yusuke UJIIE, Shuhei HATAE
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Publication number: 20170250757Abstract: An optical transmitter includes a signal-process circuit to process a transmission signal; an optical modulator to modulate light input by the transmission signal output from the signal-process circuit, and output an optical signal; and a control circuit to output a control signal for controlling a carrier frequency of the optical signal, to the signal-process circuit, wherein the signal-process circuit comprises a phase-rotation circuit to apply phase rotation of the carrier frequency on a complex plane according to the control signal, to the transmission signal, a map-adjustment circuit to determine scale factor for a map according to an angle of the phase rotation, and a modulation-format-map circuit to map the transmission signal on the complex plane based on a modulation format and the scale factor, wherein the phase-rotation circuit is configured to rotate, on the complex plane, the phase of the carrier frequency mapped based on the scale factor.Type: ApplicationFiled: January 31, 2017Publication date: August 31, 2017Applicant: FUJITSU LIMITEDInventors: Shuhei HATAE, Masato Oota, Akiko Furuya, Tomoki Katou
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Publication number: 20170250759Abstract: An optical transmitter includes a signal-processing circuit configured to perform signal processing on a first transmission signal and output a second transmission signal; an optical modulator configured to modulate input light with the second transmission signal and to output an optical signal; and a control circuit configured to output a control signal for controlling a carrier frequency of the optical signal to the signal-processing circuit, wherein the signal-processing circuit includes a map-adjustment circuit configured to adjust, based on the control signal and a modulation format, a map position of the second transmission signal onto a complex plane, and a phase-rotation circuit configured to apply, on the complex plane, rotation of a phase of the carrier frequency corresponding to the control signal to the second transmission signal at the adjusted map position.Type: ApplicationFiled: February 17, 2017Publication date: August 31, 2017Applicant: FUJITSU LIMITEDInventors: Shuhei HATAE, Masato OOTA, Akiko FURUYA, Tomoki KATOU
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Patent number: 9680667Abstract: A circuit includes a calculation circuit configured to calculate a noise power of a predetermined-training-sequence pattern repeatedly included in a first signal input into an adaptive equalizer, based on a second signal obtained by compensating the first signal by a compensation circuit, a channel-estimation value based on the second signal, and the predetermined-training-sequence pattern; and an average circuit configured to obtain an average value of estimation values of frequency offsets based on the predetermined-training-sequence pattern having the noise power equal to or smaller than a predetermined power, among estimation values of frequency offsets based on the predetermined-training-sequence pattern, wherein the compensation circuit is configured to compensate a frequency offset of the predetermined-training sequence pattern based on the average value and thereby obtain the second signal, and the adaptive equalizer is configured to perform adaptive-equalization processing of the first signal with aType: GrantFiled: July 6, 2016Date of Patent: June 13, 2017Assignee: FUJITSU LIMITEDInventors: Daisuke Sasaki, Kazuhiko Hatae, Tomoki Katou, Nobukazu Koizumi, Masato Oota, Yasuo Ohtomo, Manabu Yamazaki, Masashi Sato
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Patent number: 9660733Abstract: A signal processing apparatus includes: a filter; and a filter control circuit, wherein the filter control circuit is configured to: detect a power of signals output from the filter; determine one of a plurality of numerical ranges to which the power belongs; update a filter coefficient of the filter according to a determination result; count a number of the signals having the power of a first value or more; set an invalid area which becomes a target not to be determined for each of one or more boundaries between the plurality of numerical ranges when the number of the signals becomes a second value or more; and control a width of the invalid area based on the number of signals.Type: GrantFiled: September 1, 2015Date of Patent: May 23, 2017Assignee: FUJITSU LIMITEDInventors: Masashi Sato, Kazuhiko Hatae, Tomoki Katou, Nobukazu Koizumi, Masato Oota, Yasuo Ohtomo, Manabu Yamazaki, Daisuke Sasaki
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Publication number: 20170012803Abstract: A circuit includes a calculation circuit configured to calculate a noise power of a predetermined-training-sequence pattern repeatedly included in a first signal input into an adaptive equalizer, based on a second signal obtained by compensating the first signal by a compensation circuit, a channel-estimation value based on the second signal, and the predetermined-training-sequence pattern; and an average circuit configured to obtain an average value of estimation values of frequency offsets based on the predetermined-training-sequence pattern having the noise power equal to or smaller than a predetermined power, among estimation values of frequency offsets based on the predetermined-training-sequence pattern, wherein the compensation circuit is configured to compensate a frequency offset of the predetermined-training sequence pattern based on the average value and thereby obtain the second signal, and the adaptive equalizer is configured to perform adaptive-equalization processing of the first signal with aType: ApplicationFiled: July 6, 2016Publication date: January 12, 2017Applicant: FUJITSU LIMITEDInventors: Daisuke SASAKI, KAZUHIKO HATAE, TOMOKI KATOU, Nobukazu KOIZUMI, Masato OOTA, Yasuo OHTOMO, MANABU YAMAZAKI, Masashi Sato
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Patent number: 9496966Abstract: A receiving device that converts, to a digital signal, a signal in which signal light from an optical transmission path and local oscillation light are mixed, so as to perform digital signal processing, the optical communication receiving device comprising: a frequency offset compensation unit configured to calculate a frequency offset of the digital signal and to, based on the frequency offset, compensate for a phase of the digital signal; a carrier phase recovery unit configured to calculate a carrier phase of the digital signal whose phase is compensated for in the frequency offset compensation unit; and a residual frequency offset detection unit configured to calculate an average of differences in the carrier phase, and to output the average as a residual frequency offset, wherein the frequency offset compensation unit is configured to correct the frequency offset using the residual frequency offset output by the residual frequency offset detection unit.Type: GrantFiled: September 24, 2014Date of Patent: November 15, 2016Assignee: FUJITSU LIMITEDInventors: Kazuhiko Hatae, Nobukazu Koizumi, Koji Nakamuta, Manabu Yamazaki, Tomoki Katou, Masashi Sato, Hisao Nakashima
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Patent number: 9424683Abstract: A transposing apparatus is configured by a computer controlling a computing device having computing elements arranged into a matrix and memory devices connected to the computing elements. The computing device executes an electromagnetic field analysis process on latticed three-dimensional analysis subject data present in a three-dimensional coordinate system. The computer is configured to detect the number of lined-up lattices in a direction of a first axis, in a direction of a second axis, and in a direction of a third axis of the coordinate system, through detection on the three-dimensional analysis subject data; transpose a group of lattices of the three-dimensional analysis subject data, based on the detected numbers of lined-up lattices and on the number of lined-up computing elements in a row direction and in a column direction; and output to the computing device, the three-dimensional analysis subject data transposed.Type: GrantFiled: January 25, 2013Date of Patent: August 23, 2016Assignee: FUJITSU LIMITEDInventor: Tomoki Katou
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Patent number: 9374170Abstract: An optical receiving device includes: an adaptive equalizer that includes a position estimation unit configured to estimate, based on a first signal component and a second signal component of a reception signal generated by reception of a training sequence pattern transmitted from an optical transmitter, a symbol position of the reception signal, and generates an estimated symbol position, a delay unit configured to provide a delay difference between the first signal component and the second signal component, a control unit configured to set a plurality of symbol displacement amount candidates of displacement amounts for the estimated symbol position, causes the delay unit to generate a plurality of delay differences, and generates a channel estimation symbol position used for channel estimation, and an error rate calculation unit configured to calculate an error rate of the signal restored by an adaptive equalization unit.Type: GrantFiled: December 4, 2014Date of Patent: June 21, 2016Assignee: FUJITSU LIMITEDInventors: Masato Oota, Tomoki Katou, Kazuhiko Hatae, Hisao Nakashima, Manabu Yamazaki
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Publication number: 20160134261Abstract: A signal processing apparatus includes: a filter; and a filter control circuit, wherein the filter control circuit is configured to: detect a power of signals output from the filter; determine one of a plurality of numerical ranges to which the power belongs; update a filter coefficient of the filter according to a determination result; count a number of the signals having the power of a first value or more; set an invalid area which becomes a target not to be determined for each of one or more boundaries between the plurality of numerical ranges when the number of the signals becomes a second value or more; and control a width of the invalid area based on the number of signals.Type: ApplicationFiled: September 1, 2015Publication date: May 12, 2016Inventors: Masashi Sato, KAZUHIKO HATAE, TOMOKI KATOU, Nobukazu KOIZUMI, Masato OOTA, Yasuo OHTOMO, MANABU YAMAZAKI, Daisuke SASAKI
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Publication number: 20150180586Abstract: An optical receiving device includes: an adaptive equalizer that includes a position estimation unit configured to estimate, based on a first signal component and a second signal component of a reception signal generated by reception of a training sequence pattern transmitted from an optical transmitter, a symbol position of the reception signal, and generates an estimated symbol position, a delay unit configured to provide a delay difference between the first signal component and the second signal component, a control unit configured to set a plurality of symbol displacement amount candidates of displacement amounts for the estimated symbol position, causes the delay unit to generate a plurality of delay differences, and generates a channel estimation symbol position used for channel estimation, and an error rate calculation unit configured to calculate an error rate of the signal restored by an adaptive equalization unit.Type: ApplicationFiled: December 4, 2014Publication date: June 25, 2015Inventors: Masato OOTA, Tomoki KATOU, Kazuhiko HATAE, Hisao NAKASHIMA, Manabu YAMAZAKI