Patents by Inventor Hirokazu Tsubota

Hirokazu Tsubota 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: 20140365060
    Abstract: A self-propelled work apparatus includes a traveling unit, a work unit, and a user interface. The traveling unit moves in a self-propelled manner to a position near a user. The work unit performs predetermined work. The user interface adjusts a position of the traveling unit located near the user, in accordance with a motion of the user. The work unit starts the predetermined work when the user interface is activated in accordance with the user motion.
    Type: Application
    Filed: December 12, 2013
    Publication date: December 11, 2014
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Susumu YAMAMOTO, Shigeru YAMAMOTO, Yasuharu SAKURAI, Hirokazu TSUBOTA
  • Patent number: 8897650
    Abstract: A sending/receiving system includes first and second sending/receiving apparatuses. The first sending/receiving apparatus includes a first sending section that sends link establishment information via first transmission channels. The second sending/receiving apparatus includes a second sending section, link establishing sections, and a controller. The second sending section sends link establishment information to the first sending/receiving apparatus via a second transmission channel. Each of the link establishing sections is provided for a corresponding one of the first transmission channels and establishes a link in the corresponding first transmission channel on the basis of the link establishment information.
    Type: Grant
    Filed: August 20, 2012
    Date of Patent: November 25, 2014
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Hirokazu Tsubota
  • Patent number: 8634090
    Abstract: A data transfer apparatus includes a transmitting unit, a transmission controlling unit, and a generating unit. The transmitting unit transmits transmit data over a transmission channel having a plurality of lines, such that the transmit data are assigned to the plurality of lines by information unit of the transmit data, the information unit. The transmission controlling unit appends control data to transfer data to be transferred to a receiving side to compose the transmit data, the control data being for controlling transmission and reception of the transfer data. The generating unit obtains information about the number of the lines. The generating unit determines, based on the number of the lines and the number of information units of the control data, the number of information units of the transfer data that makes the number of information units of the transmit data integral multiple of the number of the lines.
    Type: Grant
    Filed: September 13, 2010
    Date of Patent: January 21, 2014
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Manabu Akamatsu, Takeshi Kamimura, Hirokazu Tsubota
  • Patent number: 8588328
    Abstract: The present invention provides a information transmission device including: a transmission section that transmits information to a first transmission path that transmit information serially; a reception section that receives information from a second transmission path; a waveform shaping section that, according to setting information, shapes at least one of a signal waveform of the information for transmission, and/or a signal waveform of the information for reception; and a controller that, when establishing communication, controls the transmission section to transmit predetermined first information that requests communication establishment, and effects control to change the first setting information and controls the transmission section to re-transmit the first setting information when the reception section has not received the first information within an interval that from the beginning of transmission of the first information until a predetermined duration required for communication establishment has elap
    Type: Grant
    Filed: March 12, 2010
    Date of Patent: November 19, 2013
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Hirokazu Tsubota
  • Publication number: 20130177324
    Abstract: A sending/receiving system includes first and second sending/receiving apparatuses. The first sending/receiving apparatus includes a first sending section that sends link establishment information via first transmission channels. The second sending/receiving apparatus includes a second sending section, link establishing sections, and a controller. The second sending section sends link establishment information to the first sending/receiving apparatus via a second transmission channel. Each of the link establishing sections is provided for a corresponding one of the first transmission channels and establishes a link in the corresponding first transmission channel on the basis of the link establishment information.
    Type: Application
    Filed: August 20, 2012
    Publication date: July 11, 2013
    Applicant: FUJI XEROX CO., LTD.
    Inventor: Hirokazu TSUBOTA
  • Patent number: 8482292
    Abstract: A status detecting device that includes a first contact member, a second contact member, an applying component, a grounding component, a detecting component, and an executing component is provided. The applying component applies a predetermined voltage to the first contact member. The grounding component grounds the second contact member. The detecting component detects at least one of a potential between the applying component and the first contact member, or a potential between the second contact member and the grounding component. The executing component executes predetermined processing, based on a detection result from the detecting component.
    Type: Grant
    Filed: August 23, 2010
    Date of Patent: July 9, 2013
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Hirokazu Tsubota
  • Patent number: 8312192
    Abstract: The present invention provides an information transmission system including: a transmission path that transmits information in serial; a first information transmission device including, a transmitting section that transmits the information in the transmission path at a predetermined transmission speed, and a controller that controls the transmitting section to transmit predetermined first information in the transmission path when establishing communication, the first information including a same value in successive plurality of bits; and a second information transmission device including, a receiving section that receives the information transmitted via the transmission path, and a communication establishing section that establishes the communication based on the first information, when the receiving section receives the first information.
    Type: Grant
    Filed: March 18, 2010
    Date of Patent: November 13, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Hirokazu Tsubota
  • Patent number: 8164295
    Abstract: A stepping motor controlling device includes first and second clock signal generators, plural drivers, and a controller. The first clock signal generator generates a reference clock signal for rotationally driving of plural stepping motors. The second clock signal generator generates, on the basis of the reference clock signal, for each of the stepping motors, speed control clock signals. The plural drivers are provided respectively for the stepping motors and, on the basis of the speed control clock signals for the respective stepping motors, generate pulse excitation signals and input the pulse excitation signals to the stepping motors to rotationally drive the stepping motors. The controller controls the second clock signal generator to generate the speed control clock signals such that phases of the respective speed control clock signals for the stepping motors differ from one another.
    Type: Grant
    Filed: April 22, 2009
    Date of Patent: April 24, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Hirokazu Tsubota
  • Publication number: 20120092694
    Abstract: A communication device includes: a division unit that divides first data to be transmitted to another communication device via a transmission path including a plurality of lanes into a plurality of second data; a transmission unit that transmits the plurality of second data to the another communication device by distributing them to either one of the plurality of lanes; and an error notification reception unit that receives an error notification when an error is detected from one of the plurality of second data received by the another communication device. When the error notification reception unit receives the error notification, the division unit divides second data, in which an error is detected, into a plurality of third data, and the transmission unit retransmits the second data to the another communication device by distributing the plurality of third data to either one of the plurality of lanes.
    Type: Application
    Filed: May 26, 2011
    Publication date: April 19, 2012
    Applicant: FUJI XEROX CO., LTD.
    Inventor: Hirokazu TSUBOTA
  • Publication number: 20120069843
    Abstract: A communication system includes: a first communication device; and a second communication device; the first communication device including: an identification information addition unit that adds an identification information to identify data to the data to be transmitted to the second communication device via a transmission path; and a transmitter that transmits the data to which the identification information is added by the identification information addition unit; and the second communication device including: a receiver that receives the data, to which the identification information is added, from the first communication device via the transmission path; and a distribution unit that distributes the data received by the receiver to a processing unit that executes a given process corresponding to the identification information.
    Type: Application
    Filed: January 25, 2011
    Publication date: March 22, 2012
    Applicant: FUJI XEROX CO., LTD.
    Inventor: Hirokazu TSUBOTA
  • Patent number: 8045224
    Abstract: An image formation system includes a medium-pattern-information-read-unit that reads pattern information of a surface of a medium; a pattern-information-image-creation-unit that creates a pattern Information image based on the read pattern information; and a print unit that adds the pattern information image to a print image to be printed on the surface of the medium and prints the print image on the medium.
    Type: Grant
    Filed: June 4, 2008
    Date of Patent: October 25, 2011
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Yasuhiro Arai, Atsushi Ugajin, Hirokazu Tsubota, Satoshi Kurashima, Toshio Hisamura, Masaki Fujise, Yoshitake Matsubara, Osamu Yasui
  • Patent number: 8031377
    Abstract: An image forming apparatus includes a paper fiber reading unit that reads fiber properties of a paper sheet; an encryption unit that encrypts at least a part of an input image based on the fiber properties read by the paper fiber reading unit; and a printing unit that prints an encrypted image portion encrypted by the encryption unit and an image including information representing the fiber properties read by the paper fiber reading unit on the paper sheet whose fiber properties are read by the paper fiber reading unit.
    Type: Grant
    Filed: April 3, 2008
    Date of Patent: October 4, 2011
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Atsushi Ugajin, Toshio Hisamura, Yoshitake Matsubara, Hirokazu Tsubota, Satoshi Kurashima, Osamu Yasui, Yasuhiro Arai, Masaki Fujise
  • Publication number: 20110196910
    Abstract: A data transfer apparatus includes a transmitting unit, a transmission controlling unit, and a generating unit. The transmitting unit transmits transmit data over a transmission channel having a plurality of lines, such that the transmit data are assigned to the plurality of lines by information unit of the transmit data, the information unit. The transmission controlling unit appends control data to transfer data to be transferred to a receiving side to compose the transmit data, the control data being for controlling transmission and reception of the transfer data. The generating unit obtains information about the number of the lines. The generating unit determines, based on the number of the lines and the number of information units of the control data, the number of information units of the transfer data that makes the number of information units of the transmit data integral multiple of the number of the lines.
    Type: Application
    Filed: September 13, 2010
    Publication date: August 11, 2011
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Manabu Akamatsu, Takeshi Kamimura, Hirokazu Tsubota
  • Publication number: 20110187383
    Abstract: A status detecting device that includes a first contact member, a second contact member, an applying component, a grounding component, a detecting component, and an executing component is provided. The applying component applies a predetermined voltage to the first contact member. The grounding component grounds the second contact member. The detecting component detects at least one of a potential between the applying component and the first contact member, or a potential between the second contact member and the grounding component. The executing component executes predetermined processing, based on a detection result from the detecting component.
    Type: Application
    Filed: August 23, 2010
    Publication date: August 4, 2011
    Applicant: FUJI XEROX CO., LTD.
    Inventor: Hirokazu TSUBOTA
  • Patent number: 7920079
    Abstract: A serial signal receiving device, includes: a serial-parallel converter that converts a transmitted serial signal into a parallel signal, wherein the serialized signal is obtained by the plural signal; a storage unit that stores phase difference information indicating a phase difference among the plural signals; and a correcting unit that corrects a phase relation among the plural signals of the parallel signal output from the serial-parallel converter based on the phase difference information stored by the storage unit.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: April 5, 2011
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Hirokazu Tsubota, Toshio Hisamura, Atsushi Ugajin
  • Publication number: 20110019762
    Abstract: The present invention provides a information transmission device including: a transmission section that transmits information to a first transmission path that transmit information serially; a reception section that receives information from a second transmission path; a waveform shaping section that, according to setting information, shapes at least one of a signal waveform of the information for transmission, and/or a signal waveform of the information for reception; and a controller that, when establishing communication, controls the transmission section to transmit predetermined first information that requests communication establishment, and effects control to change the first setting information and controls the transmission section to re-transmit the first setting information when the reception section has not received the first information within an interval that from the beginning of transmission of the first information until a predetermined duration required for communication establishment has elap
    Type: Application
    Filed: March 12, 2010
    Publication date: January 27, 2011
    Applicant: FUJI XEROX CO., LTD.
    Inventor: Hirokazu TSUBOTA
  • Publication number: 20110004713
    Abstract: The present invention provides an information transmission system including: a transmission path that transmits information in serial; a first information transmission device including, a transmitting section that transmits the information in the transmission path at a predetermined transmission speed, and a controller that controls the transmitting section to transmit predetermined first information in the transmission path when establishing communication, the first information including a same value in successive plurality of bits; and a second information transmission device including, a receiving section that receives the information transmitted via the transmission path, and a communication establishing section that establishes the communication based on the first information, when the receiving section receives the first information.
    Type: Application
    Filed: March 18, 2010
    Publication date: January 6, 2011
    Applicant: FUJI XEROX CO., LTD.
    Inventor: Hirokazu Tsubota
  • Publication number: 20100141200
    Abstract: A stepping motor controlling device includes first and second clock signal generators, plural drivers, and a controller. The first clock signal generator generates a reference clock signal for rotationally driving of plural stepping motors. The second clock signal generator generates, on the basis of the reference clock signal, for each of the stepping motors, speed control clock signals. The plural drivers are provided respectively for the stepping motors and, on the basis of the speed control clock signals for the respective stepping motors, generate pulse excitation signals and input the pulse excitation signals to the stepping motors to rotationally drive the stepping motors. The controller controls the second clock signal generator to generate the speed control clock signals such that phases of the respective speed control clock signals for the stepping motors differ from one another.
    Type: Application
    Filed: April 22, 2009
    Publication date: June 10, 2010
    Applicant: FUJI XEROX CO., LTD.
    Inventor: Hirokazu TSUBOTA
  • Publication number: 20100097249
    Abstract: A serial signal receiving device, includes: a serial-parallel converter that converts a transmitted serial signal into a parallel signal, wherein the serialized signal is obtained by the plural signal; a storage unit that stores phase difference information indicating a phase difference among the plural signals; and a correcting unit that corrects a phase relation among the plural signals of the parallel signal output from the serial-parallel converter based on the phase difference information stored by the storage unit.
    Type: Application
    Filed: April 30, 2009
    Publication date: April 22, 2010
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Hirokazu TSUBOTA, Toshio HISAMURA, Atsushi UGAJIN
  • Publication number: 20090116075
    Abstract: An image formation system includes a medium-pattern-information-read-unit that reads pattern information of a surface of a medium; a pattern-information-image-creation-unit that creates a pattern Information image based on the read pattern information; and a print unit that adds the pattern information image to a print image to be printed on the surface of the medium and prints the print image on the medium.
    Type: Application
    Filed: June 4, 2008
    Publication date: May 7, 2009
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Yasuhiro ARAI, Atsushi Ugajin, Hirokazu Tsubota, Satoshi Kurashima, Toshio Hisamura, Masaki Fujise, Yoshitake Matsubara, Osamu Yasui