Patents by Inventor Shoji Yamaguchi

Shoji Yamaguchi 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: 8444055
    Abstract: When a user who has a magnetic substance attached paper enters a gate which generates a magnetic field, steep magnetization reversal is produced in the magnetic substance by the magnetic field. As a result, pulse current flows into a detection coil provided in the gate, and a generated waveform signal indicating a characteristic transient response is output to a terminal device. The terminal device calculates correlation coefficients of this waveform and a plurality of stored reference waveforms, additionally calculates an average of the calculated correlation coefficients, and determines whether or not the average is equal to or more than a threshold. When the average is equal to or more than the threshold, the terminal device instructs an imaging device to image a user. When the average is below the threshold, the imaging device is not allowed to image the user.
    Type: Grant
    Filed: July 13, 2011
    Date of Patent: May 21, 2013
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Seigo Makida, Shoji Yamaguchi, Katsumi Sakamaki
  • Patent number: 8441664
    Abstract: A detection system includes: an acquiring unit that acquires document data representative of a document which includes a plurality of pages; a selector that selects, for each page of the document, a first printing sheet which contains a detected element or a second printing sheet which does not contain the detected element such that the first printing sheet is selected for at least one page; a supplier that supplies the first or the second printing sheet selected by the selector; a printer that sequentially prints the document acquired by the acquiring unit on the printing sheets supplied by the supplier; a detector that detects a detected element contained in a printing sheet on which the document is printed by the printer; and a reporter that reports detection of the detected element in a printing sheet by the detector.
    Type: Grant
    Filed: November 2, 2007
    Date of Patent: May 14, 2013
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Mario Fuse, Shoji Yamaguchi, Yasunori Koda, Shinji Tabata, Kunihiro Takahashi
  • Publication number: 20120295055
    Abstract: A label includes a belt-like label body having a base and an adhesion layer provided on one surface of the base, a linear magnetic material arranged in the label body along a longitudinal direction of the label body, and plural cut portions provided by cutting the label body and the magnetic material along a width direction of the label body except for a portion of the label body in the width direction, and provided at intervals in the longitudinal direction of the label body.
    Type: Application
    Filed: November 2, 2011
    Publication date: November 22, 2012
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Eizo Kurihara, Katsumi Sakamaki, Mario Fuse, Shoji Yamaguchi
  • Patent number: 8308196
    Abstract: A label sheet, includes: a label base material; a release liner; an adhesive layer which is formed between the label base material and the release liner; and wires that are disposed between the label base material and the release liner so as to be respectively placed on lines coupling at least one of two pairs of opposed sides of the label base material in a manner that both ends of each of the wires respectively locate at positions away from the corresponding sides coupled by each of the lines by 0.2 mm or more.
    Type: Grant
    Filed: May 19, 2009
    Date of Patent: November 13, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Dmitry Ivutin, Tsukasa Matsuda, Eizo Kurihara, Mario Fuse, Kunihiro Takahashi, Shoji Yamaguchi
  • Publication number: 20120276363
    Abstract: A sheet includes a pulp fiber and a linear magnetic material. The linear magnetic material has a substantially large Barkhausen effect. The linear magnetic material also has irregularities at an outer periphery of the linear magnetic material. The sheet in which the magnetic material is inhibited from being exposed at both surfaces of the sheet can be provided.
    Type: Application
    Filed: November 15, 2011
    Publication date: November 1, 2012
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Eizo KURIHARA, Katsumi SAKAMAKI, Mario FUSE, Shoji YAMAGUCHI
  • Publication number: 20120249131
    Abstract: A sheet identifying apparatus includes: an excitation coil disposed upstream in a passage through which a sheet inserted into an input port passes and wound on an outer periphery of the passage; a first output unit that detects a magnetization variation of a magnetic element due to the excited excitation coil when the sheet having the magnetic element passes through a region of the passage where the excitation coil is disposed in a state where an AC current is applied to the excitation coil and that outputs a first detection signal when the magnetization variation is detected; and a second output unit that detects that the sheet passes through a region downstream in the passage on the basis of a characteristic of the sheet without using the magnetic element and that outputs a second detection signal when detecting that the sheet passes through the region.
    Type: Application
    Filed: August 29, 2011
    Publication date: October 4, 2012
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Shoji YAMAGUCHI, Seigo MAKIDA, Katsumi SAKAMAKI
  • Publication number: 20120199646
    Abstract: When a user who has a magnetic substance attached paper enters a gate which generates a magnetic field, steep magnetization reversal is produced in the magnetic substance by the magnetic field. As a result, pulse current flows into a detection coil provided in the gate, and a generated waveform signal indicating a characteristic transient response is output to a terminal device. The terminal device calculates correlation coefficients of this waveform and a plurality of stored reference waveforms, additionally calculates an average of the calculated correlation coefficients, and determines whether or not the average is equal to or more than a threshold. When the average is equal to or more than the threshold, the terminal device instructs an imaging device to image a user. When the average is below the threshold, the imaging device is not allowed to image the user.
    Type: Application
    Filed: July 13, 2011
    Publication date: August 9, 2012
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Seigo MAKIDA, Shoji YAMAGUCHI, Katsumi SAKAMAKI
  • Publication number: 20120150457
    Abstract: A sensing device includes: a magnetic field generating coil that generates an alternating magnetic field in a sensing-target region; a signal inducing coil in which is induced an electric signal corresponding to the alternating magnetic field generated by the magnetic field generating coil; an amplifier that amplifies a third electric signal obtained from the difference between a first electric signal induced in the signal inducing coil in a state where a sensing-target magnetic body is present in the sensing-target region and a second electric signal induced in the signal inducing coil in a state where the magnetic body is not present in the sensing-target region; and a sensing unit that senses, on the basis of the third electric signal amplified by the amplifier, the magnetic body passing through the sensing-target region by sensing a change in the magnetic field resulting from magnetization reversal of the magnetic body.
    Type: Application
    Filed: April 27, 2011
    Publication date: June 14, 2012
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Seigo MAKIDA, Shoji YAMAGUCHI
  • Publication number: 20120138692
    Abstract: The invention provides a paper having a paper body which contains pulp fiber and a magnetic material having a large Barkhausen effect, and an image that is formed on at least one surface of the paper body and is simulative of the magnetic material contained in the paper body.
    Type: Application
    Filed: April 18, 2011
    Publication date: June 7, 2012
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Seigo Makida, Shoji Yamaguchi
  • Patent number: 8193285
    Abstract: It is to provide a block copolymer that can form a microphase separation structure even with a small molecular size, and that can form a microphase separation structure with a small domain size. It is a block copolymer represented by the formula A-C-B (wherein A represents a segment which is a homopolymer or random or block copolymer consisting of at least 1 kind or repeat units represented by formula (II); B represents a segment which is a homopolymer, or random or block copolymer consisting of at least 1 kind of repeat units represented by formula (III); C represents A, B or A-B; however, at least 1 segment of each A has a water-repellent group, or at least 1 segment of each B has a polar group); which block copolymer has a mass average molecular weight of 50,000 or less, and that can form a microphase separation structure.
    Type: Grant
    Filed: May 16, 2007
    Date of Patent: June 5, 2012
    Assignee: Nippon Soda Co., Ltd.
    Inventors: Eiji Takahashi, Shoji Yamaguchi
  • Patent number: 8193806
    Abstract: An object detecting apparatus that detects an object including a magnetic body including: a detection signal acquiring unit that acquires a detection signal based on a magnetic signal; a disturbance source detection signal storage unit that stores a detection signal of a disturbance source that generates a disturbance component with respect to the detection signal; a determining unit that determines whether the detection signal acquired by the detection signal acquiring unit contains the disturbance component; an amplitude correction unit that corrects an amplitude of the disturbance source detection signal and generates an amplitude-corrected disturbance source detection signal; a disturbance component suppression unit that generates a determination signal by suppressing the disturbance component contained in the detection signal; and an object determination unit that determines whether the object is the object to be detected based on the determination signal.
    Type: Grant
    Filed: September 11, 2009
    Date of Patent: June 5, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Shoji Yamaguchi, Mario Fuse, Tsukasa Matsuda, Kunihiro Takahashi, Hiroyoshi Inoue, Eizo Kurihara, Seigo Makida
  • Patent number: 8076010
    Abstract: A magnetic wire includes a magnetic metal wire material having a surface coated with a layer of an insulating material. The magnetic wire has a magnetic coercive force of 30 A/m or less and has a Barkhausen effect.
    Type: Grant
    Filed: April 3, 2007
    Date of Patent: December 13, 2011
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Mario Fuse, Shoji Yamaguchi, Tsukasa Matsuda, Eizo Kurihara, Yasunori Koda, Kunihiro Takahashi
  • Patent number: 8018321
    Abstract: A baggage management gate including an exciting coil, a detecting coil and signal processing unit. The exciting coil forms an alternating magnetic field in a passage to an area from which manages objects to be carried in or carried out. The detecting coil detects a variation in the alternating magnetic field when magnetization of a magnetic material showing a large Barkhausen effect is reversed in the alternating magnetic field. The signal processing unit determines as to whether the magnetization reversal occurs in the alternating magnetic field due to the large Barkhausen effect or not, based on a signal detected by the detecting coil. The signal processing unit includes amplifier that amplifies the signal detected by the detecting coil with plural different amplification factors and output the amplified signals with each of the plural different amplification factors.
    Type: Grant
    Filed: March 10, 2008
    Date of Patent: September 13, 2011
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Shoji Yamaguchi, Yasunori Koda, Kunihiro Takahashi, Mario Fuse, Hiroyoshi Inoue, Tsukasa Matsuda
  • Patent number: 7990748
    Abstract: In an information holding method according to the present invention, plural blocks are defined by an evenly sectioned surface of a sheet material in predefined positions, and predetermined information is expressed in the whole area of the sheet material by the presence/absence of information for each of the blocks.
    Type: Grant
    Filed: March 9, 2006
    Date of Patent: August 2, 2011
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Yasunori Koda, Kunihiro Takahashi, Shoji Yamaguchi, Mario Fuse
  • Patent number: 7951887
    Abstract: The object of the present invention is to provide a process for industrially advantageously producing a polymer having a high molecular weight and a narrow, monodispersed molecular weight distribution, and more particularly, a block copolymer of an anionic polymerizable monomer and an acrylic monomer. The object of the present invention was able to be achieved by reacting an acrylic monomer with a polymer anion, the terminal of which has been modified by a compound that forms a living carbanion capable of polymerizing an anionic polymerizable monomer by reacting with an anion, but which itself does not polymerize, in the presence of a compound represented by formula (1): (R1)nM (wherein, R1 represents a C1-C20 alkyl group or a C6-C20 aryl group, R1 may be the same or different in the case n is 2 or more, M represents an atom belonging to Group 2, 12 or 13 of the long form of the periodic table, and n represents the valency of M).
    Type: Grant
    Filed: May 26, 2004
    Date of Patent: May 31, 2011
    Assignee: Nippon Soda Co., Ltd.
    Inventors: Shoji Yamaguchi, Hideo Kubo
  • Publication number: 20110070464
    Abstract: A recording medium includes a magnetic material and a pulp-fiber, a minimum value of shortest distances between the magnetic material and an edge of the recording medium substantially parallel to the pulp-fiber orientation direction being about 1 mm or more.
    Type: Application
    Filed: November 23, 2010
    Publication date: March 24, 2011
    Inventors: Tsukasa MATSUDA, Eizo Kurihara, Shoji Yamaguchi, Kunihiro Takahashi, Mario Fuse, Tomofumi Tokiyoshi
  • Patent number: 7896251
    Abstract: An information reading apparatus has an excitation unit that applies a magnetic field to a medium provided with at least one magnetic element that generates a signal when the magnetic field is applied thereto and a pseudo element that generates no signal when the magnetic field is applied thereto; a detection unit that detects a signal when the signal is generated; and an identification unit that identifies the medium based on a result of the detection.
    Type: Grant
    Filed: November 15, 2005
    Date of Patent: March 1, 2011
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Shoji Yamaguchi, Mario Fuse, Kunihiro Takahashi
  • Patent number: 7888615
    Abstract: A flat detector includes a first flat member and a second flat member both made of a nonmagnetic nonmetal, a first conductive wiring that generates an alternating magnetic field, the first conductive wiring being disposed on a surface of the first flat member facing toward the second flat member, a first layer made of a nonmagnetic metal and disposed at least on a surface of the first flat member, a second conductive wiring that detects a signal generated by magnetization reversal of a magnetic material, the magnetization reversal being caused by the alternating magnetic field generated by the first conductive wiring, the second conductive wiring being disposed on a surface of the second flat member facing toward the first flat member, and a second layer made of a nonmagnetic metal and disposed at least on a surface of the second flat member.
    Type: Grant
    Filed: May 1, 2009
    Date of Patent: February 15, 2011
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Eizo Kurihara, Tsukasa Matsuda, Kunihiro Takahashi, Hiroyoshi Inoue, Mario Fuse, Shoji Yamaguchi
  • Patent number: 7862918
    Abstract: A recording medium includes a magnetic material and a pulp-fiber, a minimum value of shortest distances between the magnetic material and an edge of the recording medium substantially parallel to the pulp-fiber orientation direction being about 1 mm or more.
    Type: Grant
    Filed: July 19, 2007
    Date of Patent: January 4, 2011
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Tsukasa Matsuda, Eizo Kurihara, Shoji Yamaguchi, Kunihiro Takahashi, Mario Fuse, Tomofumi Tokiyoshi
  • Patent number: 7834739
    Abstract: A baggage management gate includes a first reading device and a second reading device, a detecting device, a determining unit, a first opening and closing device and a second opening and closing device. The baggage management gate manages baggage that is restricted to be carried in or out from a predetermined region. And in order away from the region in which the baggage is managed, the first reading device, the second opening and closing device, the detecting device for both the first person and the second person, the first opening and closing device, and the second reading device are arranged in an entrance direction from the passage to the management region in which the baggage is managed.
    Type: Grant
    Filed: March 17, 2008
    Date of Patent: November 16, 2010
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Shoji Yamaguchi, Mario Fuse, Yasunori Koda, Kunihiro Takahashi, Hiroyoshi Inoue, Tsukasa Matsuda