Patents by Inventor Hiromasa Tanaka

Hiromasa Tanaka 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: 9602693
    Abstract: In accordance with an embodiment, an image processing apparatus comprises a scanner; a designation section configured to designate a color presented in an original document as the object to be removed; extraction section configured to extract color information of the color to be removed based on image data which is obtained by reading, using the scanner, a color information extraction sheet on which an image is formed with a material of the color to be removed; and a conversion section configured to form, based on the designation of the designation section and the color information extracted by the extraction section, an image by removing the image data in the color designated to be removed from the image data of the original document.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: March 21, 2017
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Hiromasa Tanaka
  • Publication number: 20170059658
    Abstract: An electrical storage system includes an electrical storage device, a load, a line, a relay, a capacitor, a voltage sensor, a first insulation resistor, a second insulation resistor, a first current path, a second current path, and a controller. The capacitor has one end connected to the electrical storage device and the other end connected to a ground. The voltage sensor is configured to detect a voltage value of the capacitor. The first insulation resistor is provided between the electrical storage device and the ground. The second insulation resistor is disposed between the load and the ground. The first current path includes the first insulation resistor. The second current path includes the line and the second insulation resistor. The controller is configured to control ON and OFF of the relay.
    Type: Application
    Filed: May 11, 2015
    Publication date: March 2, 2017
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hiromasa TANAKA
  • Patent number: 9577458
    Abstract: An electrical storage system includes: an electrical storage device (10) including serially connected electrical storage blocks; a relay (SMR-B, SMR-G) switching a connection state between the electrical storage device and a load; a controller (30, 34) controlling the relay; and a current interruption circuit (60) interrupting energization of the electrical storage device. The current interruption circuit (60) includes an alarm circuit (63) outputting an alarm signal indicating that any one electrical storage block is overcharged or overdischarged by comparing a voltage value of each electrical storage block with a threshold; a latch circuit (64) retaining the alarm signal; and a transistor (68) causing the relay to switch from an on state to an off state upon reception of a latch circuit output signal. The controller determines an energization state of the electrical storage device after executing control for causing the alarm circuit to output the alarm signal by changing the voltage value or the threshold.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: February 21, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keiji Kaita, Yuji Nishi, Yukinari Tanabe, Hiromasa Tanaka, Motoi Ito
  • Publication number: 20170034602
    Abstract: An optical transmitter has an array of laser diodes, which output optical signals from a forward end, and controls the power of the optical signals. The optical transmitter has photodiodes detecting the optical power of optical signals from a reverse end and a LD-DRV unit that supplies to the laser diodes, bias current amplitude modulated to a predetermined frequency that differs from that of the drive signal of the laser diodes. The optical transmitter has a frequency analyzing unit that separates a signal detected by a photodiode, into an optical signal component from a target laser diode and crosstalk optical signal components received from other laser diodes; and a control unit that computes for each detected signal, a ratio of the crosstalk optical signal components to the optical signal component, and performs based on the ratio, a computation to remove the crosstalk optical signal components from the detected signal.
    Type: Application
    Filed: July 25, 2016
    Publication date: February 2, 2017
    Applicant: Fujitsu Optical Components Limited
    Inventor: Hiromasa TANAKA
  • Publication number: 20160236581
    Abstract: An electrical storage system includes a main battery, an auxiliary battery, a bidirectional DC-DC converter and a controller. The bidirectional DC-DC converter is provided between the auxiliary battery and a power supply path from the main battery to a driving motor. The bidirectional DC-DC converter steps down an output voltage from the power supply path to the auxiliary battery, and steps up an output voltage from the auxiliary battery to the power supply path. The controller controls charging and discharging of the auxiliary battery. The controller, when an allowable output power of the main battery decreases and an electric power becomes insufficient for a required vehicle output, supplies an electric power to the power supply path by discharging the auxiliary battery by using the bidirectional DC-DC converter.
    Type: Application
    Filed: October 1, 2014
    Publication date: August 18, 2016
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroki TASHIRO, Hiromasa TANAKA, Yuji NISHI, Yukinari TANABE, Hiroyuki KAIYA
  • Publication number: 20160225564
    Abstract: An electrical storage system includes an electrical storage device, a load, a positive electrode line, a negative electrode line, a first relay, a second relay, a third relay, a drive circuit and a controller. The drive circuit includes a coil, a first power line, a second power line, and a sensor. The first power line includes a first switch element and a second switch element connected in series with each other. The second power line includes a second resistive element and a third switch element connected in series with each other. The drive circuit is configured to cause both the second and third relays and the first relay to operate at different timings. The controller is configured to control operation of the drive circuit. The controller is configured to output a control signal for setting each switch element to the non-energized state, and determine whether any one of the switch elements has a failure in the energized state on the basis of the output signal of the sensor.
    Type: Application
    Filed: September 9, 2014
    Publication date: August 4, 2016
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hiromasa TANAKA
  • Publication number: 20160223615
    Abstract: A system for determining fixation of a relay has an electricity storage device, an electrical apparatus, a relay, a first insulation resistor, a second insulation resistor, a detection circuit, and a controller. When the relay is controlled to OFF, the controller determines, based on the voltage value detected by the detection circuit (the detected voltage value), whether or not the relay is fixed. When the detected voltage value is a voltage value that is obtained by dividing the reference voltage value by a combined resistance value and the reference resistance value, the controller determines that the relay is fixed. When the detected voltage value is a voltage value that is obtained by dividing the reference voltage value by the first resistance value and the reference resistance value, the controller determines that the relay is not fixed.
    Type: Application
    Filed: September 4, 2014
    Publication date: August 4, 2016
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuji NISHI, Yukinari TANABE, Hiroyuki KAIYA, Hiromasa TANAKA
  • Publication number: 20160207403
    Abstract: An electric power storage system for a vehicle includes: an electric power storage device; a converter configured to perform voltage conversion between the device and the motor; a DC/DC converter configured to step down an output voltage to an auxiliary machine or an auxiliary machine battery; a charger configured to charge the device with external electric power; and first and second relays disposed on first and second connection lines connecting the device to the converter, respectively. One end of the DC/DC converter is connected to the first connection line between the first relay and the converter and the other end is connected to the second connection line between the device and the second relay. The charger is disposed on a current path capable of charging the device with the external electric power when the first relay is in an ON state and the second relay is in an OFF state.
    Type: Application
    Filed: January 14, 2016
    Publication date: July 21, 2016
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tomoaki IIDA, Hiromasa TANAKA
  • Publication number: 20160197499
    Abstract: A battery monitoring device monitoring a battery unit connecting battery blocks, the battery unit being configured by each of the battery blocks connecting battery cells, includes: a voltage detection circuit connected to each of the plurality of battery cells via a voltage detection line; a first equalization circuit as a circuit provided with at least a first switching element, the first equalization circuit being disposed for each of the battery cells and connected to the corresponding battery cell; a resistor element disposed on the voltage detection line; a second equalization circuit as a circuit provided with at least a second switching element, the second equalization circuit being disposed for each of the battery blocks and connected to the corresponding battery block; and a controller configured to control driving of the switching elements. The second equalization circuit is connected further on the battery block side than the resistor element.
    Type: Application
    Filed: December 31, 2015
    Publication date: July 7, 2016
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keiji KAITA, Hiromasa TANAKA, Takahiro OKADA
  • Publication number: 20160193940
    Abstract: A vehicle includes a generator, an engine, a main battery, an auxiliary battery, and a controller. The engine is configured to perform a load operation and a self-supported operation. The controller is configured to control charging and discharging of the auxiliary battery. When an upper limit of an allowable charging power of the main battery decreased and a command power is in a state in which the load operation and the self-supported operation are alternately switched, the controller is configured to operate a continuous charging. The continuous charging is to charge the auxiliary battery continuously for a predetermined time with a charging power. The charging power is a power which increases the command power to be equal to or larger than the threshold.
    Type: Application
    Filed: September 1, 2014
    Publication date: July 7, 2016
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroki TASHIRO, Hiromasa TANAKA
  • Publication number: 20150357856
    Abstract: [Problem] To provide a configuration for cutting off energization of an electricity storage block without interposing a controller. [Solution] The electricity storage system has: an electricity storage block including an electricity storage element (11) for performing charging and discharging; a relay (SMR-B, SMR-G) switched between an ON state in which the electric storage block is connected to a load (22, 23) and an OFF state in which a connection between the electricity storage block and the load is cut off; a controller (34) for controlling the ON state and the OFF state of the relay; and a current cutoff circuit (60) for switching the relay from the ON state to the OFF state, so as to cut off energization of the electricity storage block.
    Type: Application
    Filed: December 3, 2012
    Publication date: December 10, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yukinari TANABE, Yuji NISHI, Hiroyuki KAIYA, Hiromasa TANAKA, Keiji KAITA, Motoi ITO
  • Publication number: 20150255979
    Abstract: An electrical storage system includes an electrical storage device (10); a relay (SMR-B, SMR-G, SMR-P) switching between on/off states; a current interruption circuit (60) interrupting energization of the electrical storage device by causing the relay to switch from the on state to the off state; and a controller (30) executing drive control over the relay. The current interruption circuit includes an alarm circuit (63) outputting an alarm signal indicating overcharging/overdischarging of any one electrical storage block by comparing a voltage value of each electrical storage block with a threshold; a latch circuit (64) retaining the alarm signal; and a transistor (68) causing the relay to switch from the on state to the off state upon reception of an output signal of the latch circuit. The controller determines an energization state of the electrical storage device by executing control for turning on the relay while control for causing the alarm circuit to output the alarm signal is being executed.
    Type: Application
    Filed: November 29, 2013
    Publication date: September 10, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keiji Kaita, Yuji Nishi, Yukinari Tanabe, Hiromasa Tanaka, Motoi Ito
  • Publication number: 20150229154
    Abstract: An electrical storage system includes: an electrical storage device (10) including serially connected electrical storage blocks; a relay (SMR-B, SMR-G) switching a connection state between the electrical storage device and a load; a controller (30, 34) controlling the relay; and a current interruption circuit (60) interrupting energization of the electrical storage device. The current interruption circuit (60) includes an alarm circuit (63) outputting an alarm signal indicating that any one electrical storage block is overcharged or overdischarged by comparing a voltage value of each electrical storage block with a threshold; a latch circuit (64) retaining the alarm signal; and a transistor (68) causing the relay to switch from an on state to an off state upon reception of a latch circuit output signal. The controller determines an energization state of the electrical storage device after executing control for causing the alarm circuit to output the alarm signal by changing the voltage value or the threshold.
    Type: Application
    Filed: November 27, 2013
    Publication date: August 13, 2015
    Inventors: Keiji Kaita, Yuji Nishi, Yukinari Tanabe, Hiromasa Tanaka, Motoi Ito
  • Publication number: 20150229143
    Abstract: An electrical storage system includes a relay switching between an on state where an electrical storage device (10) is connected to a load and an off state where connection of the electrical storage device with the load is interrupted; a controller controlling an on-off state of the relay; and a current interruption circuit (60) interrupting energization of the electrical storage device. The current interruption circuit includes an alarm circuit (63) outputting an alarm signal indicating that any one electrical storage block is in an overcharged state by comparing a voltage value of each electrical storage block with a threshold; a latch circuit (64) retaining the alarm signal; a transistor (66) causing the relay to switch from the on state to the off state upon reception of an output signal of the latch circuit; and a power supply circuit (63d) generating electric power for operating the latch circuit using electric power of the electrical storage device.
    Type: Application
    Filed: November 28, 2013
    Publication date: August 13, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keiji Kaita, Yuji Nishi, Yukinari Tanabe, Hiromasa Tanaka, Motoi Ito
  • Patent number: 8948615
    Abstract: There is provided an optical receiver including a variable-ratio splitter to split an input signal light into a plurality of signal lights, based on a variable ratio, a plurality of photo detectors to receive the plurality of signal lights respectively, an operation circuit to output a reception electrical signal, based on a reception processing on one of the plurality of signal lights, a calculation circuit to calculate a total power of the plurality of signal lights received by the plurality of photo detectors, and an output unit to output a signal regarding the total power.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: February 3, 2015
    Assignee: Fujitsu Optical Components Limited
    Inventor: Hiromasa Tanaka
  • Publication number: 20150030693
    Abstract: An object of the present invention is to provide an antitumor aqueous solution and an anticancer agent, both of which can kill cancer cells while having virtually no effects on normal cells, and to provide methods for producing the antitumor aqueous solution and the anticancer agent. The method of the invention for producing an antitumor aqueous solution for killing cancer cells includes an aqueous solution preparation step of preparing an aqueous solution through addition, to water, of a solute containing at least one of disodium hydrogen phosphate (Na2HPO4), sodium hydrogen carbonate (NaHCO3), L-glutamine, L-histidine, and L-tyrosine disodium dihydrate (L-tyrosine.2Na.2H2O); and a plasma irradiation step of irradiating the aqueous solution with atmospheric pressure plasma generated in a plasma generation region by means of a plasma generator.
    Type: Application
    Filed: February 26, 2013
    Publication date: January 29, 2015
    Applicants: c/o NATONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY, NU ECO ENGINEEERING CO., LTD.
    Inventors: Masaru Hori, Masaaki Mizuno, Fumitaka Kikkawa, Hiroaki Kajiyama, Fumi Utsumi, Kae Nakamura, Kenji Ishikawa, Keigo Takeda, Hiromasa Tanaka, Hiroyuki Kano
  • Patent number: 8811779
    Abstract: An optical semiconductor element is held in a junction-up state at an approach start position that is isolated from a mount face of a planar lightwave circuit, and the top-face height of the optical semiconductor element and the surface height of the planar lightwave circuit are aligned by bringing the optical semiconductor element closer towards the mount face. Further, the height of the active layer of the optical semiconductor element is aligned with the height of a waveguide of the planar lightwave circuit by bringing the optical semiconductor element towards the mount face for an amount of a difference between a reference value of a distance on design from the surface of the planar lightwave circuit to the center of the waveguide and a reference value of a distance on design from the top face of the optical semiconductor element to the center of the active layer.
    Type: Grant
    Filed: March 20, 2012
    Date of Patent: August 19, 2014
    Assignee: NEC Corporation
    Inventor: Hiromasa Tanaka
  • Patent number: 8731422
    Abstract: According to one embodiment, an image forming apparatus includes: a first paper feeding unit; a second paper feeding unit; a fixing unit configured to fix a developer image transferred onto a sheet; a conveying path configured to convey sheets; a receiving unit configured to receive an execution instruction for duplex printing for continuously printing an image on one surface and on the other surface of a sheet; an acquiring unit configured to acquire, in the printing on one surface, information concerning presence or absence of an image on the other surface; and a processor configured to change, in the printing on one surface, if a result of the acquisition concerning the sheet fed from the first paper feeding unit indicates that an image is present, a paper feeding unit from the first paper feeding unit to the second paper feeding unit and performs control for re-executing the duplex printing.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: May 20, 2014
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Hiromasa Tanaka, Eiichi Yamanishi, Hiroyuki Okuyama, Tetsuya Sadowara, Yoshihito Hiroe, Yasuaki Okamoto
  • Patent number: 8319808
    Abstract: According to one embodiment, there is provided an image forming apparatus, including an accommodation unit, an image forming unit, an image reading unit, an image erasing unit, a first medium processing unit, and a second medium processing unit. The first medium processing unit forms the image on the recording medium carried from the accommodation unit and discharges the recording medium on which the image is formed, based on the setting of a first image process mode. The second medium processing unit forms a test image on the recording medium carried from the accommodation unit, reads the test image, erases the test image, and returns the recording medium to the accommodation unit, based on a setting of a second image process mode.
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: November 27, 2012
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Tetsuya Sadowara, Eiichi Yamanishi, Hiroyuki Okuyama, Yoshihito Hiroe, Hiromasa Tanaka, Yasuaki Okamoto
  • Publication number: 20120269480
    Abstract: An optical semiconductor element is held in a junction-up state at an approach start position that is isolated from a mount face of a planar lightwave circuit, and the top-face height of the optical semiconductor element and the surface height of the planar lightwave circuit are aligned by bringing the optical semiconductor element closer towards the mount face. Further, the height of the active layer of the optical semiconductor element is aligned with the height of a waveguide of the planar lightwave circuit by bringing the optical semiconductor element towards the mount face for an amount of a difference between a reference value of a distance on design from the surface of the planar lightwave circuit to the center of the waveguide and a reference value of a distance on design from the top face of the optical semiconductor element to the center of the active layer.
    Type: Application
    Filed: March 20, 2012
    Publication date: October 25, 2012
    Applicant: NEC CORPORATION
    Inventor: Hiromasa TANAKA