Patents by Inventor Yuji Shimada

Yuji Shimada 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: 20180348729
    Abstract: A control device adapted to control a robot including a robot arm provided with a force detector includes a processor that is configured to execute computer-executable instructions so as to control the robot, wherein the processor is configured to: operate the robot arm to move a screw gauge which is disposed on a tip side of the force detector of the robot arm, used for an inspection of a screw hole, and provided with an external thread, to make the external thread have contact with the screw hole; then detect force applied to the screw gauge using the force detector to perform force control in a direction perpendicular to a direction of an axis of the screw hole based on detection information of the force detector; and operate the robot arm to move the screw gauge based on the force control.
    Type: Application
    Filed: May 30, 2018
    Publication date: December 6, 2018
    Inventors: Junya UEDA, Yuji SHIMADA
  • Publication number: 20180200892
    Abstract: A robot includes a robot arm having at least one arm, from which an end effector is detachable, a force detection unit provided between the end effector and the arm, and an energizing member that energizes the end effector toward the force detection unit side. It is preferable that the energizing member is an elastic member having elasticity. Further, a connecting part that couples the robot arm and the end effector is provided, and it is preferable that the force detection unit is provided between the end effector and the connecting part.
    Type: Application
    Filed: January 5, 2018
    Publication date: July 19, 2018
    Inventors: Yuji SHIMADA, Naoki UMETSU, Tsuguya KOJIMA, Masato YOKOTA
  • Patent number: 9866345
    Abstract: A transmission device for which a work path is established in a first degree and a protection path is established in a second degree includes: a switch equipped with a plurality of optical ports; an optical signal generator, optically connected to a first optical port, and configured to generate an optical signal that is transmitted through the work path; and a monitor light generator, optically connected to a second optical port, and configured to generate monitor light by using a wavelength tunable light source. The monitor light generator controls a wavelength of the monitor light to be substantially the same as a wavelength of the optical signal. The switch guides the optical signal that arrives at the first optical port toward the first degree and guides the monitor light that arrives at the second optical port toward the second degree.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: January 9, 2018
    Assignee: FUJITSU LIMITED
    Inventors: Yuki Ban, Yuji Shimada
  • Publication number: 20170300148
    Abstract: A capacitance measurement circuit measures each of multiple electrostatic capacitances. Charger circuits respectively correspond to a sensor capacitance Cs. Each charger circuit charges the corresponding sensor capacitance Cs so as to generate a detection current Is that corresponds to a charging current ICHG. A current averaging circuit is configured to be switchable between the on state and the off state. In the on state, the current averaging circuit outputs an average current IAVE obtained by averaging the detection currents Is generated by the multiple charger circuits. In the off state, the current averaging circuit outputs an average current IAVE of zero. The capacitance measurement circuit measures each sensor capacitance Cs based on a differential current between the corresponding detection current Is and the average current IAVE.
    Type: Application
    Filed: April 13, 2017
    Publication date: October 19, 2017
    Inventor: Yuji SHIMADA
  • Publication number: 20170222747
    Abstract: A transmission device for which a work path is established in a first degree and a protection path is established in a second degree includes: a switch equipped with a plurality of optical ports; an optical signal generator, optically connected to a first optical port, and configured to generate an optical signal that is transmitted through the work path; and a monitor light generator, optically connected to a second optical port, and configured to generate monitor light by using a wavelength tunable light source. The monitor light generator controls a wavelength of the monitor light to be substantially the same as a wavelength of the optical signal. The switch guides the optical signal that arrives at the first optical port toward the first degree and guides the monitor light that arrives at the second optical port toward the second degree.
    Type: Application
    Filed: December 9, 2016
    Publication date: August 3, 2017
    Applicant: FUJITSU LIMITED
    Inventors: Yuki BAN, Yuji SHIMADA
  • Patent number: 9697998
    Abstract: A mass spectrometer includes: an ionization unit configured to ionize an analyte gas; a filter unit configured to allow passage of only a target ion which is a component of the analyte gas ionized in the ionization unit and which has a specific mass-to-charge ratio; and an ion detection unit configured to detect an ion detection value based on the target ion having passed through the filter unit, wherein the ion detection unit includes a Faraday electrode which includes an electrode portion disposed along a centerline of the filter unit and a bottom electrode provided at a position downstream of the electrode portion in a flow of the target ion, the electrode portion and the bottom electrode being connected to each other, a secondary electron multiplier provided to face the electrode portion with the centerline located therebetween, and a blocking portion connected to the bottom electrode.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: July 4, 2017
    Assignee: CANON ANELVA CORPORATION
    Inventors: Megumi Nakamura, Yoshiyuki Takizawa, Masayuki Sugiyama, Yuji Shimada, Hiroki Mita
  • Patent number: 9652104
    Abstract: A capacitance voltage conversion circuit, which converts respective capacitances of a plurality of sensor capacitors into voltages, includes: a plurality of capacitance current conversion circuits disposed in respective correspondence with the sensor capacitors, each capacitance current conversion circuit configured to generate a detection current corresponding to a capacitance of a corresponding sensor capacitor; a current average circuit configured to average a plurality of detection currents, which are respectively generated by the capacitance current conversion circuits, to generate an average current; and a plurality of current voltage conversion circuits disposed in respective correspondence with the sensor capacitors, each current voltage conversion circuit configured to convert a difference current between a corresponding detection current and the average current into a voltage.
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: May 16, 2017
    Assignee: ROHM CO., LTD
    Inventors: Yukihiro Iwamoto, Yuji Shimada
  • Publication number: 20160240364
    Abstract: A mass spectrometer includes: an ionization unit configured to ionize an analyte gas; a filter unit configured to allow passage of only a target ion which is a component of the analyte gas ionized in the ionization unit and which has a specific mass-to-charge ratio; and an ion detection unit configured to detect an ion detection value based on the target ion having passed through the filter unit, wherein the ion detection unit includes a Faraday electrode which includes an electrode portion disposed along a centerline of the filter unit and a bottom electrode provided at a position downstream of the electrode portion in a flow of the target ion, the electrode portion and the bottom electrode being connected to each other, a secondary electron multiplier provided to face the electrode portion with the centerline located therebetween, and a blocking portion connected to the bottom electrode.
    Type: Application
    Filed: December 28, 2015
    Publication date: August 18, 2016
    Inventors: Megumi Nakamura, Yoshiyuki Takizawa, Masayuki Sugiyama, Yuji Shimada, Hiroki Mita
  • Publication number: 20160124552
    Abstract: A capacitance voltage conversion circuit, which converts respective capacitances of a plurality of sensor capacitors into voltages, includes: a plurality of capacitance current conversion circuits disposed in respective correspondence with the sensor capacitors, each capacitance current conversion circuit configured to generate a detection current corresponding to a capacitance of a corresponding sensor capacitor; a current average circuit configured to average a plurality of detection currents, which are respectively generated by the capacitance current conversion circuits, to generate an average current; and a plurality of current voltage conversion circuits disposed in respective correspondence with the sensor capacitors, each current voltage conversion circuit configured to convert a difference current between a corresponding detection current and the average current into a voltage.
    Type: Application
    Filed: January 12, 2016
    Publication date: May 5, 2016
    Inventors: Yukihiro IWAMOTO, Yuji SHIMADA
  • Patent number: 9261545
    Abstract: A capacitance voltage conversion circuit, which converts respective capacitances of a plurality of sensor capacitors into voltages, includes: a plurality of capacitance current conversion circuits disposed in respective correspondence with the sensor capacitors, each capacitance current conversion circuit configured to generate a detection current corresponding to a capacitance of a corresponding sensor capacitor; a current average circuit configured to average a plurality of detection currents, which are respectively generated by the capacitance current conversion circuits, to generate an average current; and a plurality of current voltage conversion circuits disposed in respective correspondence with the sensor capacitors, each current voltage conversion circuit configured to convert a difference current between a corresponding detection current and the average current into a voltage.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: February 16, 2016
    Assignee: ROHM CO., LTD.
    Inventors: Yukihiro Iwamoto, Yuji Shimada
  • Patent number: 8848738
    Abstract: There is provided an optical transmission device which includes a determiner, a convertor, and a switch. The determiner determines whether a frame includes a fixed stuff byte area or not when the frame is received from a first network, where the frame includes a payload area for storing client data and the fixed stuff byte area is for storing fixed data. When the determiner determines that the frame includes the fixed stuff byte area, a convertor to convert a fixed stuff byte area into the payload area and a switch switches a clock frequency from a first clock frequency used in the first network to a second clock frequency used in a second network when the frame including the converted fixed stuff byte area is output to the second network on the basis of the clock frequency as a reference.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: September 30, 2014
    Assignee: Fujitsu Limited
    Inventors: Ayumu Nonaka, Yuji Shimada, Syed Faruk Ahmed
  • Patent number: 8833329
    Abstract: A hybrid transaxle 200 that is a transmission is provided with a junction surface 20 that contacts a junction surface of an internal combustion engine. A bolt span portion 20a of the junction surface 20 is provided with a protrusion portion 25 that elastically deforms so that the internal combustion engine-side junction surface and the hybrid transaxle 200-side junction surface 20 closely contact each other.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: September 16, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Tomoyuki Kasuga, Takashi Shimizu, Yukinobu Nishikawa, Yota Mizuno, Yuji Shimada, Kenji Odaka
  • Patent number: 8699506
    Abstract: An optical transmission apparatus includes an extractor that extracts information indicating port allocation to each slot of a reception signal; a comparator that based on the extracted information and for a given slot among the slots, obtains a count of the slots allocated the same port as the given slot and compares the obtained count of slots and an expected value for the given slot; and a memory that stores therein for each slot, an expected value for the count of slots allocated the same port as the slot. The comparator detects a mismatch concerning the given slot, when the obtained count of slots and the expected value for the given slot differ.
    Type: Grant
    Filed: February 6, 2012
    Date of Patent: April 15, 2014
    Assignee: Fujitsu Limited
    Inventors: Miwa Taniguchi, Yuji Shimada, Yoshinobu Matsukawa
  • Publication number: 20130332629
    Abstract: A configuration controller configured to control configuration of a partially configurable programmable device, includes a determination unit configured to determine whether or not circuit data to be arranged in any one of a plurality of areas in the programmable device matches desired circuit data for which a desired arrangement target area is specified, before the circuit data to be arranged is written into the programmable device, and a data controller configured to control whether or not the circuit data to be arranged is to be written into the programmable device, in accordance with the determination result of the determination unit.
    Type: Application
    Filed: May 2, 2013
    Publication date: December 12, 2013
    Applicant: FUJITSU LIMITED
    Inventors: Katsuyuki OKABE, Koichi KINOSHITA, Kenichi OHYAMA, Haruhisa FUKANO, Yuji SHIMADA
  • Publication number: 20130039644
    Abstract: There is provided an optical network apparatus included in an optical network in which alarm information including a type and a position of a generated failure is transferred, the optical network apparatus including: a reception unit configured to detect alarm information from a received signal, generate alarm code information representing content of an alarm from the alarm information, and transmit a signal including the alarm code information; a transfer unit configured to switch and transfer the signal transmitted from the reception unit; and a transmission unit configured to replace the alarm information included in the signal transferred from the transfer unit, based on the alarm code information, setting information of the transmission unit and setting information of the reception unit, and to transmit the signal including the replaced alarm information.
    Type: Application
    Filed: July 30, 2012
    Publication date: February 14, 2013
    Applicant: FUJITSU LIMITED
    Inventors: Miwa TANIGUCHI, Yuji Shimada, Yoshinobu Matsukawa
  • Publication number: 20120257903
    Abstract: An optical transmission apparatus includes an extractor that extracts information indicating port allocation to each slot of a reception signal; a comparator that based on the extracted information and for a given slot among the slots, obtains a count of the slots allocated the same port as the given slot and compares the obtained count of slots and an expected value for the given slot; and a memory that stores therein for each slot, an expected value for the count of slots allocated the same port as the slot. The comparator detects a mismatch concerning the given slot, when the obtained count of slots and the expected value for the given slot differ.
    Type: Application
    Filed: February 6, 2012
    Publication date: October 11, 2012
    Applicant: FUJITSU LIMITED
    Inventors: Miwa TANIGUCHI, Yuji Shimada, Yoshinobu Matsukawa
  • Publication number: 20120200306
    Abstract: A capacitance voltage conversion circuit, which converts respective capacitances of a plurality of sensor capacitors into voltages, includes: a plurality of capacitance current conversion circuits disposed in respective correspondence with the sensor capacitors, each capacitance current conversion circuit configured to generate a detection current corresponding to a capacitance of a corresponding sensor capacitor; a current average circuit configured to average a plurality of detection currents, which are respectively generated by the capacitance current conversion circuits, to generate an average current; and a plurality of current voltage conversion circuits disposed in respective correspondence with the sensor capacitors, each current voltage conversion circuit configured to convert a difference current between a corresponding detection current and the average current into a voltage.
    Type: Application
    Filed: February 7, 2012
    Publication date: August 9, 2012
    Applicant: ROHM CO., LTD.
    Inventors: Yukihiro IWAMOTO, Yuji SHIMADA
  • Patent number: 8225690
    Abstract: A power transmission device is provided with: a first gear having a plurality of teeth that share an identical tooth profile; an intermediate gear that is engaged with the first gear; and a second gear that is engaged with the intermediate gear, and has a plurality of teeth that share an identical tooth profile, wherein the first gear and the second gear have an identical number of teeth, an identical reference diameter, and an identical reference pitch; and the tooth profile of the first gear is different from that of the second gear.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: July 24, 2012
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yuji Shimada, Katsuya Kobayashi
  • Patent number: 8160111
    Abstract: A system and method of transmitting client data encoded according to an 8B/10B encoding between a client side and an optical communication network side, including inserting padding signals in an amount corresponding to a rate difference between a clock on the client side and a clock in the optical transmission device and controlling a clock to be used as a reference in transmitting the client data to synchronize with a clock having been used as a reference in transmitting the client data on the basis of a ratio of padding signals having been inserted in the client data.
    Type: Grant
    Filed: October 17, 2008
    Date of Patent: April 17, 2012
    Assignee: Fujitsu Limited
    Inventors: Ayumu Nonaka, Yuji Shimada, Hideo Kuroda, Koji Nekoda
  • Publication number: 20120057929
    Abstract: A hybrid transaxle 200 that is a transmission is provided with a junction surface 20 that contacts a junction surface of an internal combustion engine. A bolt span portion 20a of the junction surface 20 is provided with a protrusion portion 25 that elastically deforms so that the internal combustion engine-side junction surface and the hybrid transaxle 200-side junction surface 20 closely contact each other.
    Type: Application
    Filed: March 31, 2010
    Publication date: March 8, 2012
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tomoyuki Kasuga, Takashi Shimizu, Yukinobu Nishikawa, Yota Mizuno, Yuji Shimada, Kenji Odaka