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).

  • Publication number: 20180349070
    Abstract: An image processing apparatus includes a reading unit, an acquiring unit, a color information extracting unit, a storage unit, an image extracting unit, and an image generating unit. The reading unit reads an image on a sheet. The acquiring unit acquires image data from the image read by the reading unit. The color information extracting unit extracts color information from the image data. The storage unit stores specific color information. The image extracting unit extracts second image data surrounded by a line with the specific color information in first image data that the acquiring unit acquires from an image on a first sheet which is read by the reading unit. The image generating unit generates third image data based on the second image data.
    Type: Application
    Filed: September 13, 2017
    Publication date: December 6, 2018
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Hiromasa TANAKA
  • Patent number: 10146485
    Abstract: An image processing apparatus includes a reading unit, an acquiring unit, a color information extracting unit, a storage unit, an image extracting unit, and an image generating unit. The reading unit reads an image on a sheet. The acquiring unit acquires image data from the image read by the reading unit. The color information extracting unit extracts color information from the image data. The storage unit stores specific color information. The image extracting unit extracts second image data surrounded by a line with the specific color information in first image data that the acquiring unit acquires from an image on a first sheet which is read by the reading unit. The image generating unit generates third image data based on the second image data.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: December 4, 2018
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventor: Hiromasa Tanaka
  • Patent number: 10114056
    Abstract: A power-supply monitoring device includes a capacitor that is connected to an insulated electric power source to execute charging/discharging. A power-supply monitoring device including this capacitor forms a charging path for detecting deterioration in an insulation resistance of an electric power source, and detects a voltage of the capacitor when being charged through this charging path. A vehicle controller specifies an abnormal part based on whether or not the voltage of the capacitor detected by the power-supply monitoring device is within a predetermined range.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: October 30, 2018
    Assignees: FUJITSU TEN LIMITED, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shota Kawanaka, Sho Tamura, Takahiro Okada, Hiromasa Tanaka, Mitsuyori Matsumura
  • Patent number: 10115549
    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: Grant
    Filed: September 9, 2014
    Date of Patent: October 30, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hiromasa Tanaka
  • Publication number: 20180296988
    Abstract: To provide a cell-trapping filter which has a high cell trapping efficiency and which is excellent in water resistance. A cell-trapping filter comprising a substrate and a cell-separating mechanism by size, wherein the substrate has, at least on its surface, a layer formed of a fluorinated polymer having units having a biocompatible group, having a fluorine atom content of from 5 to 60 mass % and having a proportion P represented by the following formula of from 0.
    Type: Application
    Filed: June 21, 2018
    Publication date: October 18, 2018
    Applicants: Asahi Glass Company, Limited, National University Corporation Nagoya University
    Inventors: Naoto KIHARA, Ryohei KOGUCHI, Hajime EGUCHI, Masaru HORI, Hiromasa TANAKA, Kenji ISHIKAWA, Yoshinobu BABA, Hiroshi YUKAWA, Daisuke ONOSHIMA, Tetsunari HASE, Daiki KUBOYAMA
  • Patent number: 10096992
    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: Grant
    Filed: November 29, 2013
    Date of Patent: October 9, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keiji Kaita, Yuji Nishi, Yukinari Tanabe, Hiromasa Tanaka, Motoi Ito
  • Patent number: 10044908
    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: February 2, 2017
    Date of Patent: August 7, 2018
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Hiromasa Tanaka
  • Patent number: 10024919
    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: Grant
    Filed: September 4, 2014
    Date of Patent: July 17, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuji Nishi, Yukinari Tanabe, Hiroyuki Kaiya, Hiromasa Tanaka
  • Patent number: 9956882
    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: Grant
    Filed: January 14, 2016
    Date of Patent: May 1, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tomoaki Iida, Hiromasa Tanaka
  • Patent number: 9954454
    Abstract: A DC/DC converter is able to step down a voltage value of a high-voltage battery, and is able to step up a voltage value of a low-voltage battery. The low-voltage battery is a battery that provides a lower voltage value than the high-voltage battery. The DC/DC converter includes a transformer, a third diode and a reactor. The transformer includes a first coil and a second coil. The first coil is connected to the low-voltage battery. The second coil is connected to the high-voltage battery. An anode of the third diode is connected to one end of the first coil. One end of the reactor is connected to a cathode of the third diode, and the other end of the reactor is connected to a positive electrode terminal of the low-voltage battery.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: April 24, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuji Nishi, Hiromasa Tanaka, Masanori Ishigaki, Shuji Tomura
  • Patent number: 9941712
    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: Grant
    Filed: November 28, 2013
    Date of Patent: April 10, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keiji Kaita, Yuji Nishi, Yukinari Tanabe, Hiromasa Tanaka, Motoi Ito
  • Patent number: 9941972
    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: Grant
    Filed: July 25, 2016
    Date of Patent: April 10, 2018
    Assignee: FUJITSU OPTICAL COMPONENTS LIMITED
    Inventor: Hiromasa Tanaka
  • Patent number: 9849793
    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: Grant
    Filed: October 1, 2014
    Date of Patent: December 26, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroki Tashiro, Hiromasa Tanaka, Yuji Nishi, Yukinari Tanabe, Hiroyuki Kaiya
  • Publication number: 20170276714
    Abstract: A power-supply monitoring device includes a capacitor that is connected to an insulated electric power source to execute charging/discharging. A power-supply monitoring device including this capacitor forms a charging path for detecting deterioration in an insulation resistance of an electric power source, and detects a voltage of the capacitor when being charged through this charging path. A vehicle controller specifies an abnormal part based on whether or not the voltage of the capacitor detected by the power-supply monitoring device is within a predetermined range.
    Type: Application
    Filed: February 15, 2017
    Publication date: September 28, 2017
    Applicants: FUJITSU TEN LIMITED, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shota KAWANAKA, Sho TAMURA, Takahiro OKADA, Hiromasa TANAKA, Mitsuyori MATSUMURA
  • Patent number: 9731619
    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: Grant
    Filed: September 1, 2014
    Date of Patent: August 15, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroki Tashiro, Hiromasa Tanaka
  • Publication number: 20170227589
    Abstract: An abnormality detection device includes a measuring unit 14c and a determining unit 14d. The measuring unit 14c measures, among a power supply, a capacitor, a load circuit, a switch connecting the power supply to the load circuit, and ground of a vehicle body, which are mounted on a vehicle, a first voltage of the capacitor charged by serially connecting the power supply, the capacitor, and the body ground in a state where the switch is controlled to be turned off. The determining unit 14d determines that the switch is not fixed in an ON state and an insulation resistance of the vehicle is normal when the first voltage measured by the measuring unit 14c is less than a first threshold.
    Type: Application
    Filed: January 9, 2017
    Publication date: August 10, 2017
    Applicants: FUJITSU TEN LIMITED, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shota KAWANAKA, Sho TAMURA, Takahiro OKADA, Hiromasa TANAKA
  • Publication number: 20170150006
    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: Application
    Filed: February 2, 2017
    Publication date: May 25, 2017
    Inventor: Hiromasa Tanaka
  • Publication number: 20170125995
    Abstract: An electricity storage system includes an electricity storage device, a positive electrode line, a negative electrode line, a capacitor, at least two diodes, and a first intermediate line. The electricity storage device is able to supply power to a load. The electricity storage device includes at least two electricity storage groups connected in series. The electricity storage group includes at least two electricity storage elements connected in series. Each electricity storage element includes a current breaker. The capacitor is connected to the positive and negative electrode lines. At least two diodes are connected in series between the positive electrode line and the negative electrode line and are respectively connected in parallel to the electricity storage groups. The first intermediate line is connected between a first connection point at which the electricity storage groups are connected together and a second connection point at which the diodes are connected together.
    Type: Application
    Filed: May 28, 2015
    Publication date: May 4, 2017
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yuji Nishi, Yukinari Tanabe, Hiromasa Tanaka, Hiroyuki Kaiya, Takahiko Hirasawa, Junta Izumi
  • Publication number: 20170110975
    Abstract: A DC/DC converter is able to step down a voltage value of a high-voltage battery, and is able to step up a voltage value of a low-voltage battery. The low-voltage battery is a battery that provides a lower voltage value than the high-voltage battery. The DC/DC converter includes a transformer, a third diode and a reactor. The transformer includes a first coil and a second coil. The first coil is connected to the low-voltage battery. The second coil is connected to the high-voltage battery. An anode of the third diode is connected to one end of the first coil. One end of the reactor is connected to a cathode of the third diode, and the other end of the reactor is connected to a positive electrode terminal of the low-voltage battery.
    Type: Application
    Filed: March 13, 2015
    Publication date: April 20, 2017
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuji NISHI, Hiromasa TANAKA, Masanori ISHIGAKI, Shuji TOMURA
  • Publication number: 20170094108
    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: Application
    Filed: September 28, 2015
    Publication date: March 30, 2017
    Inventor: Hiromasa Tanaka