Patents by Inventor Katsuhisa Higashi

Katsuhisa Higashi 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: 20190130935
    Abstract: This magnetic head, which reads and writes magnetic information, prevents a signal from being read between the magnetic head and the write circuit during reading of magnetic information. A card reader 1 is provided with a magnetic head 6 which reads and writes magnetic information. Bidirectional diodes 54A, 54B are arranged inside of a head case 21 of the magnetic head 6. A write signal from a write circuit 72 is inputted via the bidirectional diodes 54A, 54B to a writing coil 34 wound around a core 32 of the magnetic head 6. The bidirectional diodes 54A, 54B and a demodulation IC 61 are mounted on a first board surface 62A of a control circuit board 62, and the control circuit board 62 is fixed to the head case 21 so that the bidirectional diodes 54A, 54B and the demodulation IC 61 are covered by the head case 21.
    Type: Application
    Filed: March 8, 2017
    Publication date: May 2, 2019
    Applicant: NIDEC SANKYO CORPORATION
    Inventors: Katsuhisa HIGASHI, Yohei SHIMIZU
  • Publication number: 20190005979
    Abstract: A magnetic recording medium processing device may include a magnetic recording medium insertion slot; a medium pathway connected to the magnetic recording medium insertion slot; a magnetic head arranged to face the medium pathway; and an interference magnetic field generating device structured to generate interference magnetic fields outside the magnetic recording medium insertion slot. The interference magnetic field generating device may include a coil, a capacitor, a first power line, a second power line to which a voltage different from that to the first power line is applied, multiple switches structured to switch the connections between the first power line and the second power line of the coil and the capacitor, and a switch control unit structured to control the multiple switches.
    Type: Application
    Filed: June 27, 2018
    Publication date: January 3, 2019
    Inventors: Katsuhisa HIGASHI, Ikuro KURIBAYASHI, Keiji MIYAZAWA, Yohei SHIMIZU
  • Patent number: 10083327
    Abstract: A card reader may include a magnetic sensor to detect whether magnetic data are recorded in the magnetic stripe of the card; a control section to supply electric power to the magnetic sensor and into which an output signal of the magnetic sensor is inputted; and a card insertion port into which the card is inserted and in which the magnetic sensor is disposed. The magnetic sensor may output an output signal when the electric power is supplied from the control section. The control section may supply the electric power to the magnetic sensor during a first supply time period which is shorter than a card passage time period.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: September 25, 2018
    Assignee: NIDEC SANKYO CORPORATION
    Inventors: Katsuhisa Higashi, Yukihiko Takita, Kazutoshi Ishikawa, Hiroshi Kawate, Tadashi Taguchi
  • Publication number: 20180261035
    Abstract: A card reader may include a wireless user interface; a host connecting interface structured to connect with the host device of the system; and a wireless communication interface structured to connect with the mobile terminal. The wireless user interface may be structured to communicate with the host device through the host connecting interface and with the mobile terminal through the wireless communication interface.
    Type: Application
    Filed: September 26, 2016
    Publication date: September 13, 2018
    Inventors: Kazutoshi ISHIKAWA, Katsuhisa HIGASHI, Yosuke OGUCHI, Toshiro SHIOMI
  • Patent number: 10055615
    Abstract: A card reader may include a card insertion port; a magnetoresistive (MR) sensor; and a disturbing magnetic field generator, wherein the card may include a magnetic stripe, and magnetic data recorded in the magnetic stripe may be arranged in a moving direction of the card inserted through the card insertion port. The MR sensor may include a first resistor and a second resistor separated by a distance which is less than a bit interval of magnetic data, in a case that “0” data are recorded in the magnetic stripe, in the moving direction of the card.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: August 21, 2018
    Assignee: NIDEC SANKYO CORPORATION
    Inventors: Kazutoshi Ishikawa, Katsuhisa Higashi, Yukihiko Takita, Yohei Shimizu
  • Patent number: 10043044
    Abstract: A card reader may include a card insertion port; a card passage; and a disturbing magnetic field generator. The disturbing magnetic field generator may include a first disturbing magnetic field generation part and a second disturbing magnetic field generation part which are disposed so as to interpose the card passage. The first disturbing magnetic field generation part may include a first core formed of magnetic material and a coil wound around the first core, and the second disturbing magnetic field generation part may include a second core formed of magnetic material and a coil wound around the second core.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: August 7, 2018
    Assignee: NIDEC SANKYO CORPORATION
    Inventors: Katsuhisa Higashi, Ikuro Kuribayashi, Hirotaka Sakamaki, Tomomi Takeda, Keiji Hoson, Mamoru Mizawa
  • Publication number: 20180218138
    Abstract: A card reader may include a card-inserting opening at which the card is inserted; a biometric authentication sensor arranged proximate to the card-inserting opening and structured to acquire user biometric authentication data from a user; a contact structured to read the card biometric authentication data recorded on the card; a memory structured to store the user biometric authentication data acquired by the biometric authentication sensor; and a processor configured to compare the user biometric authentication data acquired by the sensor, which is stored in the storage unit, against the card biometric authentication data recorded on the card.
    Type: Application
    Filed: June 23, 2016
    Publication date: August 2, 2018
    Applicant: NIDEC SANKYO CORPORATION
    Inventors: Kazutoshi ISHIKAWA, Katsuhisa HIGASHI, Kazunori TAKAHASHI, Toshiro SHIOMI
  • Publication number: 20180075263
    Abstract: A card reader may include a card insertion port; a magnetoresistive (MR) sensor, and a disturbing magnetic field generator, wherein the card may include a magnetic stripe, and magnetic data recorded in the magnetic stripe may be arranged in a moving direction of the card inserted through the card insertion port. The MR sensor may include a first resistor and a second resistor separated by a distance which is less than a bit interval of magnetic data, in a case that “0” data are recorded in the magnetic stripe, in the moving direction of the card.
    Type: Application
    Filed: March 29, 2016
    Publication date: March 15, 2018
    Inventors: Kazutoshi ISHIKAWA, Katsuhisa HIGASHI, Yukihiko TAKITA, Yohei SHIMIZU
  • Patent number: 9858449
    Abstract: An MR sensor structured to detect whether or not magnetic data are recorded in a magnetic stripe of a card having first and second tracks may include a first resistor and a second resistor serially-connected with each other and disposed at positions where the first track is passed; and a third resistor and a fourth resistor serially-connected with each other and disposed at positions where the second track is passed. The second resistor and the fourth resistor may be connected with a power supply, and the first resistor and the third resistor may be ground grounded. A potential difference between a first midpoint between the first resistor and the second resistor and a second midpoint between the third resistor and the fourth resistor may be an output of the MR sensor.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: January 2, 2018
    Assignee: NIDEC SANKYO CORPORATION
    Inventors: Hiroshi Kawate, Tadashi Taguchi, Katsuhisa Higashi, Yukihiko Takita, Kazutoshi Ishikawa
  • Publication number: 20170293777
    Abstract: An MR sensor structured to detect whether or not magnetic data are recorded in a magnetic stripe of a card having first and second tracks may include a first resistor and a second resistor serially-connected with each other and disposed at positions where the first track is passed; and a third resistor and a fourth resistor serially-connected with each other and disposed at positions where the second track is passed. The second resistor and the fourth resistor may be connected with a power supply, and the first resistor and the third resistor may be ground grounded. A potential difference between a first midpoint between the first resistor and the second resistor and a second midpoint between the third resistor and the fourth resistor may be an output of the MR sensor.
    Type: Application
    Filed: August 20, 2015
    Publication date: October 12, 2017
    Inventors: Hiroshi KAWATE, Tadashi TAGUCHI, Katsuhisa HIGASHI, Yukihiko TAKITA, Kazutoshi ISHIKAWA
  • Publication number: 20170286728
    Abstract: A card reader may include a magnetic sensor to detect whether magnetic data are recorded in the magnetic stripe of the card; a control section to supply electric power to the magnetic sensor and into which an output signal of the magnetic sensor is inputted; and a card insertion port into which the card is inserted and in which the magnetic sensor is disposed. The magnetic sensor may output an output signal when the electric power is supplied from the control section. The control section may supply the electric power to the magnetic sensor during a first supply time period which is shorter than a card passage time period.
    Type: Application
    Filed: August 21, 2015
    Publication date: October 5, 2017
    Inventors: Katsuhisa HIGASHI, Yukihiko TAKITA, Kazutoshi ISHIKAWA, Hiroshi KAWATE, Tadashi TAGUCHI
  • Publication number: 20170249485
    Abstract: A card reader may include a card insertion port; a card passage; and a disturbing magnetic field generator. The disturbing magnetic field generator may include a first disturbing magnetic field generation part and a second disturbing magnetic field generation part which are disposed so as to interpose the card passage. The first disturbing magnetic field generation part may include a first core formed of magnetic material and a coil wound around the first core, and the second disturbing magnetic field generation part may include a second core formed of magnetic material and a coil wound around the second core.
    Type: Application
    Filed: February 10, 2015
    Publication date: August 31, 2017
    Inventors: Katsuhisa HIGASHI, Ikuro KURIBAYASHI, Hirotaka SAKAMAKI, Tomomi TAKEDA, Keiji HOSON, Mamoru MIZAWA
  • Patent number: 9734363
    Abstract: A card reader may include a card passage where a card inserted into an insertion port for the card is passed, a shutter member for closing the card passage, a magnetic head disposed on a rear side relative to the shutter member and structured to perform reading of magnetic data recorded in a magnetic stripe of the card and/or recording of magnetic data to the magnetic stripe, and a foreign matter detection mechanism which is structured to detect a foreign matter attached to the card passage. The foreign matter detection mechanism is disposed on a rear side relative to the shutter member and is disposed at a position in the width direction of the card where the magnetic stripe is passed. The foreign matter detection mechanism may be structured of an electrostatic capacitance sensor.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: August 15, 2017
    Assignee: NIDEC SANKYO CORPORATION
    Inventors: Shigeki Ozawa, Kazutoshi Ishikawa, Katsuhisa Higashi, Kazunori Takahashi
  • Patent number: 9552501
    Abstract: The present invention is to provide a card reader that can prevent the illegal acquisition of magnetic information recorded on a magnetic stripe, based on an output signal from a pre-head. More specifically described, in a card reader having a card insertion slot for guiding a magnetic card having a magnetic stripe to a transport passage and a pre-head arranged in the vicinity of the card insertion slot for detecting the presence of the magnetic stripe, the pre-head is equipped with a head portion having at least one pair of magnetic cores arranged to be opposite from each other having a magnetic gap between them and coils wound around a pair of the magnetic cores; and a signal different from that of the magnetic information recorded on the magnetic stripe is output from the pre-head.
    Type: Grant
    Filed: July 28, 2014
    Date of Patent: January 24, 2017
    Assignee: NIDEC SANKYO CORPORATION
    Inventors: Takaaki Miyabe, Yoshihito Komatsu, Kazutoshi Ishikawa, Katsuhisa Higashi
  • Patent number: 9367716
    Abstract: An information reproduction device for use with a magnetic recording medium storing information may include an analog/digital (AD) converter structured to convert an analog signal, which is reproduced from the information recorded in the magnetic recording medium, into a digital signal; a peak detecting unit structured to detect a peak point of the reproduced signal, from the digital signal, according to a threshold as a judgment level in accordance with an output of the AD converter; and an information generating unit for generating structured to generate a rectangular waveform signal of the reproduced signal, waveform-shaped according to interval information of peak points detected by the peak detecting unit.
    Type: Grant
    Filed: March 27, 2013
    Date of Patent: June 14, 2016
    Assignee: NIDEC SANKYO CORPORATION
    Inventors: Shigeo Nakajima, Yoichi Isono, Katsuhisa Higashi
  • Publication number: 20160162712
    Abstract: A card reader may include a card passage where a card inserted into an insertion port for the card is passed, a shutter member for closing the card passage, a magnetic head disposed on a rear side relative to the shutter member and structured to perform reading of magnetic data recorded in a magnetic stripe of the card and/or recording of magnetic data to the magnetic stripe, and a foreign matter detection mechanism which is structured to detect a foreign matter attached to the card passage. The foreign matter detection mechanism is disposed on a rear side relative to the shutter member and is disposed at a position in the width direction of the card where the magnetic stripe is passed. The foreign matter detection mechanism may be structured of an electrostatic capacitance sensor.
    Type: Application
    Filed: December 7, 2015
    Publication date: June 9, 2016
    Inventors: Shigeki OZAWA, Kazutoshi ISHIKAWA, Katsuhisa HIGASHI, Kazunori TAKAHASHI
  • Patent number: 9218846
    Abstract: A demodulation method of magnetic data may include a first data creating step which creates a preliminary data string for creating the demodulation data on a basis of an interval that is a time interval between peaks of a read signal of an analog-shaped magnetic data, and a second data creating step which creates a demodulation data creating data for creating the demodulation data on a basis of the preliminary data string created in the first data creating step. When a peak of the read signal is not detected for a predetermined time, a pseudo-peak is generated and a pseudo-interval is stored in a data storage section, and steps similar to the first data creating step and the second data creating step are executed, and the pseudo-peak is generated until the demodulation data creating data corresponding to a final interval is created.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: December 22, 2015
    Assignee: NIDEC SANKYO CORPORATION
    Inventors: Shigeo Nakajima, Katsuhisa Higashi, Yoichi Isono
  • Publication number: 20150279417
    Abstract: A demodulation method of magnetic data may include a first data creating step which creates a preliminary data string for creating the demodulation data on a basis of an interval that is a time interval between peaks of a read signal of an analog-shaped magnetic data, and a second data creating step which creates a demodulation data creating data for creating the demodulation data on a basis of the preliminary data string created in the first data creating step. When a peak of the read signal is not detected for a predetermined time, a pseudo-peak is generated and a pseudo-interval is stored in a data storage section, and steps similar to the first data creating step and the second data creating step are executed, and the pseudo-peak is generated until the demodulation data creating data corresponding to a final interval is created.
    Type: Application
    Filed: March 26, 2015
    Publication date: October 1, 2015
    Inventors: Shigeo NAKAJIMA, Katsuhisa HIGASHI, Yoichi ISONO
  • Patent number: 9129645
    Abstract: A data demodulation method may include converting an analog signal into a digital signal; detecting a peak point of a reproduced signal; creating a plurality of preliminary data rows for creating demodulated data; and creating demodulated data. The preliminary data rows may include the first individual data to be identified on the basis of the interval, and are formed of the first individual data of plural bits. Creating a plurality of preliminary data rows may use a template listing part of, or all of, a plurality of bit patterns being formed of second individual data.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: September 8, 2015
    Assignee: NIDEC SANKYO CORPORATION
    Inventors: Shigeo Nakajima, Yoichi Isono, Katsuhisa Higashi
  • Publication number: 20150170705
    Abstract: A data demodulation method may include converting an analog signal into a digital signal; detecting a peak point of a reproduced signal; creating a plurality of preliminary data rows for creating demodulated data; and creating demodulated data. The preliminary data rows may include the first individual data to be identified on the basis of the interval, and are formed of the first individual data of plural bits. Creating a plurality of preliminary data rows may use a template listing part of, or all of, a plurality of bit patterns being formed of second individual data.
    Type: Application
    Filed: August 26, 2013
    Publication date: June 18, 2015
    Inventors: Shigeo Nakajima, Yoichi Isono, Katsuhisa Higashi