Patents by Inventor Nobuo Murofushi

Nobuo Murofushi 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: 10417467
    Abstract: In one embodiment, a radio tag reading apparatus has an antenna device, a storage device, and a controller. The controller judges what frequency band is usable or not out of a plurality of frequency bands stored in the storage device. Further the controller makes the antenna device radiate a radio wave in the judged usable frequency band at a transmission rate in accordance with a width of the judged usable frequency band.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: September 17, 2019
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Nobuo Murofushi
  • Publication number: 20190251305
    Abstract: An antenna device of a reading apparatus configured to read a wireless tag includes a housing, an antenna element bent and extending in first and second directions within the housing, a first conductor that covers a bottom surface of the antenna element, and a second conductor that covers one or more of side surfaces of the antenna element on a major angle side thereof.
    Type: Application
    Filed: February 1, 2019
    Publication date: August 15, 2019
    Inventor: Nobuo MUROFUSHI
  • Publication number: 20190213367
    Abstract: In one embodiment, a radio tag reading apparatus has an antenna device, a storage device, and a controller. The controller judges what frequency band is usable or not out of a plurality of frequency bands stored in the storage device. Further the controller makes the antenna device radiate a radio wave in the judged usable frequency band at a transmission rate in accordance with a width of the judged usable frequency band.
    Type: Application
    Filed: March 18, 2019
    Publication date: July 11, 2019
    Inventor: Nobuo MUROFUSHI
  • Publication number: 20190180062
    Abstract: A radio wave reception unit (radio wave receiving means) receives a response signal of an RFID tag (wireless tag) with respect to signals of a first frequency and a second frequency different from each other transmitted by a radio wave transmission unit (radio wave transmitting means). Then, a phase difference calculation unit (phase difference calculating means) calculates a phase difference between a plurality of response signals received by the radio wave reception unit. The information determination unit (information determining means) selects an RFID tag from which the identification number (identification information) is to be read based on the calculated phase difference. Then, the tag information reading unit (tag information reading means) reads the identification number (identification information) registered in the selected RFID tag.
    Type: Application
    Filed: December 6, 2018
    Publication date: June 13, 2019
    Inventor: Nobuo Murofushi
  • Patent number: 10275622
    Abstract: In one embodiment, a radio tag reading apparatus has an antenna device, a storage device, and a controller. The controller judges what frequency band is usable or not out of a plurality of frequency bands stored in the storage device. Further the controller makes the antenna device radiate a radio wave in the judged usable frequency band at a transmission rate in accordance with a width of the judged usable frequency band.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: April 30, 2019
    Assignee: Toshiba TEC Kabushiki Kaisha
    Inventor: Nobuo Murofushi
  • Publication number: 20190019073
    Abstract: A radio tag reading device performs wireless communication with a plurality of radio tags to acquire predetermined information from the plurality of radio tags. The radio tag reading device includes a controller configured to perform a first acquiring process and a second acquiring process. The first acquiring process includes acquiring predetermined information from a first radio tag among the plurality of radio tags by transmitting a predetermined request one or more times by wireless communication at a first transmission rate. The second acquiring process includes acquiring predetermined information from a second radio tag different from the first radio tag within the plurality of radio tags by transmitting the request one or more times by wireless communication at a second transmission rate slower than the first transmission rate after the acquisition of the predetermined information in the first acquiring process is ended.
    Type: Application
    Filed: July 6, 2018
    Publication date: January 17, 2019
    Applicant: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Nobuo MUROFUSHI
  • Patent number: 10181062
    Abstract: A reading device includes an antenna having a signal radiating surface and configured to output a linearly polarized wave from the radiating surface, a movable and rotatable stage supporting the antenna and configured to move the antenna along a first direction parallel to the radiating surface of the antenna and rotate the antenna on an axis that is normal to the radiating surface of the antenna, and a tag reader connected to the antenna and configured to supply signals to the antenna for reading information from a wireless tag and to receive signals from the antenna including information read from the wireless tag.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: January 15, 2019
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Nobuo Murofushi
  • Publication number: 20180239935
    Abstract: A reading device includes an antenna having a signal radiating surface and configured to output a linearly polarized wave from the radiating surface, a movable and rotatable stage supporting the antenna and configured to move the antenna along a first direction parallel to the radiating surface of the antenna and rotate the antenna on an axis that is normal to the radiating surface of the antenna, and a tag reader connected to the antenna and configured to supply signals to the antenna for reading information from a wireless tag and to receive signals from the antenna including information read from the wireless tag.
    Type: Application
    Filed: April 20, 2018
    Publication date: August 23, 2018
    Inventor: Nobuo MUROFUSHI
  • Publication number: 20180173911
    Abstract: In one embodiment, a radio tag reading apparatus has an antenna device, a storage device, and a controller. The controller judges what frequency band is usable or not out of a plurality of frequency bands stored in the storage device. Further the controller makes the antenna device radiate a radio wave in the judged usable frequency band at a transmission rate in accordance with a width of the judged usable frequency band.
    Type: Application
    Filed: December 12, 2017
    Publication date: June 21, 2018
    Inventor: Nobuo MUROFUSHI
  • Patent number: 9977934
    Abstract: A reading device includes an antenna having a signal radiating surface and configured to output a linearly polarized wave from the radiating surface, a movable and rotatable stage supporting the antenna and configured to move the antenna along a first direction parallel to the radiating surface of the antenna and rotate the antenna on an axis that is normal to the radiating surface of the antenna, and a tag reader connected to the antenna and configured to supply signals to the antenna for reading information from a wireless tag and to receive signals from the antenna including information read from the wireless tag.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: May 22, 2018
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Nobuo Murofushi
  • Publication number: 20180053022
    Abstract: A reading device includes an antenna having a signal radiating surface and configured to output a linearly polarized wave from the radiating surface, a movable and rotatable stage supporting the antenna and configured to move the antenna along a first direction parallel to the radiating surface of the antenna and rotate the antenna on an axis that is normal to the radiating surface of the antenna, and a tag reader connected to the antenna and configured to supply signals to the antenna for reading information from a wireless tag and to receive signals from the antenna including information read from the wireless tag.
    Type: Application
    Filed: July 5, 2017
    Publication date: February 22, 2018
    Inventor: Nobuo MUROFUSHI
  • Publication number: 20180039967
    Abstract: An electronic tag reading device includes an antenna for transmitting wireless signals to an electronic tag for reading information stored in the electronic tag, an electronic tag reader electrically coupled to the antenna, the electronic tag reader supplying signals to the antenna and receiving signals from the antenna for reading information stored in the electronic tag, and a movable stage connected to the antenna and configured to move the antenna when the antenna is transmitting wireless signals during a tag reading process of the electronic tag reader and stop moving the antenna when the antenna is not transmitting wireless signals during the tag reading process.
    Type: Application
    Filed: July 5, 2017
    Publication date: February 8, 2018
    Inventor: Nobuo MUROFUSHI
  • Patent number: 9087244
    Abstract: According to one embodiment, an RFID tag position detection apparatus includes a transmission antenna, at least four reception antennas, and a measurement unit. The transmission antenna transmits a command to an RFID tag. At least four reception antennas receive a response from the RFID tag and output a reception signal. The measurement unit measures time differences between timings at which the reception signals are output from the respective reception antennas and calculates relative coordinates of the RFID tag with respect to a position of the RFID tag position detection apparatus based on the respective measured time differences.
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: July 21, 2015
    Assignee: Toshiba Tec Kabushiki Kaisha
    Inventor: Nobuo Murofushi
  • Publication number: 20150178527
    Abstract: An RFID tag issuing device includes a guide member extending in a first plane along which an RFID tag is guided, an antenna substrate having a surface forming a second plane that is not parallel to the first plane and an antenna disposed on the surface to emit a signal towards the RFID tag, and a signal processor configured to generate the signal to be emitted from the antenna.
    Type: Application
    Filed: December 23, 2014
    Publication date: June 25, 2015
    Inventors: Nobuo MUROFUSHI, Wataru SAKURAI
  • Patent number: 8643338
    Abstract: A power supply circuit uses a rechargeable battery that if a connection switching unit changes to a circuit connected state, a current starts to be supplied from the rechargeable battery to an over-discharge protection circuit, a logic circuit, and a power supply control circuit, and if the connection switching unit changes to a circuit non-connected state during this current supply, the current supplied to the over-discharge protection circuit, the logic circuit, and the power supply control circuit is maintained, and a current supplied from the rechargeable battery to the load circuit is started by supplying the current from the power supply control circuit to the load circuit, and if a voltage of the rechargeable battery drops while the current is supplied to the load circuit, and the over-discharge protection circuit stops the current supplied from the rechargeable battery to the load circuit, the over-discharge protection circuit maintains the stopped state.
    Type: Grant
    Filed: September 1, 2011
    Date of Patent: February 4, 2014
    Assignee: Toshiba Tec Kabushiki Kaisha
    Inventor: Nobuo Murofushi
  • Publication number: 20130029612
    Abstract: According to one embodiment, a wireless communication system comprises a leaky coaxial cable configured to send and receive electric wave to and from a wireless communication terminal and a retainer member configured to vertically arrange the leaky coaxial cable on a given setting surface.
    Type: Application
    Filed: July 20, 2012
    Publication date: January 31, 2013
    Applicant: TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Hiroki Mochizuki, Nobuo Murofushi, Hirotaka Ichiba, Katsumi Gocho, Koji Terahara, Kaoru Matsuhisa, Wataru Sakurai, Chikashi Gotou, Tomonori Sugiyama, Mamoru Nomura, Shigeru Sato, Kazuhiro Odoko, Kanya Hiroi
  • Patent number: 8224262
    Abstract: An identification information reader includes an antenna commonly used for transmission of a radio wave to a radio frequency identification tag and reception of a radio wave that has been modulated with at least identification information and transmitted from a radio frequency identification tag, a transmitter which outputs a radio wave to be transmitted from the antenna, a receiver which demodulates a radio wave received by the antenna to acquire at least the identification information, a directional coupler which is connected between the transmitter and the receiver, guides the radio wave output from the transmitter to the antenna and guides the radio wave received by the antenna to the receiver, and an attenuator which is connected between the antenna and the directional coupler and attenuates the radio wave guided to the receiver to reduce saturation of the receiver due to an increase in voltage standing wave ratio of the antenna.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: July 17, 2012
    Assignee: Toshiba Tec Kabushiki Kaisha
    Inventors: Sadatoshi Oishi, Nobuo Murofushi
  • Patent number: 8218688
    Abstract: A quadrature demodulator generates an I-signal from a modulated reception signal and a local signal, generates a Q-signal from the local signal and the local signal having a phase shifted through 90 degrees. Capacitors remove DC components from the I- and Q-signals. Low-pass filters remove frequency components higher than the frequencies of the I- and Q-signals. An I-signal squaring section squares the I-signal having passed through the low-pass filters. A Q-signal squaring section squares the Q-signal having passed through the low-pass filters. An adding section adds the squared I-signal and the squared Q-signal together. A comparator then compares the level of an S1 signal resulting from the addition with a threshold to obtain an S2 signal. A data generating section of a digital signal processing section executes a process of inverting the signal level of the S2 signal at every rising edge of the S2 signal to demodulate reception data.
    Type: Grant
    Filed: June 25, 2008
    Date of Patent: July 10, 2012
    Assignee: Toshiba Tec Kabushiki Kaisha
    Inventors: Nobuo Murofushi, Sadatoshi Oishi
  • Publication number: 20120133487
    Abstract: According to one embodiment, an RFID tag position detection apparatus includes a transmission antenna, at least four reception antennas, and a measurement unit. The transmission antenna transmits a command to an RFID tag. At least four reception antennas receive a response from the RFID tag and output a reception signal. The measurement unit measures time differences between timings at which the reception signals are output from the respective reception antennas and calculates relative coordinates of the RFID tag with respect to a position of the RFID tag position detection apparatus based on the respective measured time differences.
    Type: Application
    Filed: November 23, 2011
    Publication date: May 31, 2012
    Applicant: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Nobuo Murofushi
  • Patent number: RE44631
    Abstract: A mount sheet having a plurality of radio tags attached at an interval to it is run over a radio communicating section. The radio communicating section has a metal member providing a conveying surface with a slit formed therein. A dielectric member is arranged on a lower surface of the metal member with a projecting section inserted into the slit and, by doing so, the top surface of the projecting section is set flush with the top surface of the metal member. An antenna of the radio communicating section is located beneath the projecting section of the dielectric member and this antenna is held within the metal case. When any radio tag being an object of a radio communication is located over the slit, the radio communicating section positively makes radio communication with the radio tag through the antenna.
    Type: Grant
    Filed: October 15, 2010
    Date of Patent: December 10, 2013
    Assignee: Toshiba Tec Kabushiki Kaisha
    Inventors: Nobuo Murofushi, Kouichi Sano, Yasuo Matsumoto, Yasuhito Kiji