Patents by Inventor Takahiro Kawaguchi

Takahiro Kawaguchi 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: 8711191
    Abstract: An image erasing apparatus includes: a paper feeding tray configured to feed a recording medium; a sensor group including a double-feed detection sensor configured to detect double feed of the recording medium and a media sensor configured to detect the thickness of the recording medium; a recording-medium collecting device, a collection box, or a discharge box configured to collect the recording medium; and a recording-medium conveying device connecting the paper feeding tray, the sensor group, and the recording-medium collecting device, the collection box, or the discharge box on a straight line.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: April 29, 2014
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Takahiro Kawaguchi, Isao Yahata, Hiroyuki Taguchi, Ken Iguchi, Hiroyuki Tsuchihashi, Hiroyuki Taki
  • Publication number: 20140110643
    Abstract: The present invention provides an electric insulating oil composition that has excellent low temperature properties, hydrogen gas absorbability and giving less adverse effect on living bodies and comprises [A] 1,1-diphenylethane in an amount of 30 to 70 percent by mass, [B] at least one or more component selected from 4 components that are (a) 1-phenyl-1-methylphenylethane, (b) 1-phenyl-1-xylylethane, (c) 1-phenyl-1-ethylphenylethane and (d) benzyltoluene in a total amount of 30 to 70 percent by mass, and [C] 1,2-diphenylethane in an amount of 0.1 to 2 percent by mass and/or diphenylmethane in an amount of 0.1 to 13 percent by mass.
    Type: Application
    Filed: May 25, 2012
    Publication date: April 24, 2014
    Applicant: JX Nippon Oil & Energy Corporation
    Inventors: Nobuhiro Kimura, Hiroyuki Hoshino, Takahiro Kawaguchi, Mikihiro Takaki, Minoru Iizuka
  • Publication number: 20140104362
    Abstract: An image processing device has an image forming portion, a heating portion and a supplying portion. The image forming portion forms an image on a sheet. The heating portion heats the sheet on which the image is formed by the image forming portion at a predetermined temperature, to thereby fix the image on the sheet. The supplying portion supplies the sheet on which an image is fixed previously. Further, the heating portion heats the sheet on which the image is fixed and which is supplied from the supplying portion at a temperature higher than the predetermined temperature to thereby remove the image.
    Type: Application
    Filed: December 17, 2013
    Publication date: April 17, 2014
    Applicants: TOSHIBA TEC KABUSHIKI KAISHA, KABUSHIKI KAISHA TOSHIBA
    Inventors: ISAO YAHATA, Ken Iguchi, Takahiro Kawaguchi, Hiroyuki Taguchi, Hiroyuki Tsuchihashi, Hiroyuki Taki
  • Patent number: 8698861
    Abstract: According to one embodiment, a transporting path transports a paper with a heat erasable image. A first color erasing unit has a first heat roller and a first press roller. A second color erasing unit, downstream of the first color erasing unit, has a second heat roller and a second press roller. A gear drive train, engages the first heat roller and the second heat roller. An opening and closing mechanism moves between an open and a closed position. While maintaining the state of the gear drive train, the open position has the first press roller separated from the first heat roller and the second press roller separated from the second heat roller. In the closed position, the first press roller is in close proximity to the first heat roller and the second press roller is in close proximity to the second heat roller.
    Type: Grant
    Filed: April 8, 2013
    Date of Patent: April 15, 2014
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventor: Takahiro Kawaguchi
  • Patent number: 8687231
    Abstract: There is provided a decoloring device including a decoloring unit, a first sheet conveying unit, a pre-decoloring reading unit, a type determining unit, a second sheet conveying unit, a post-decoloring reading unit, a decoloring success or failure determining unit, and a determination criterion setting unit. The type determining unit determines the type of image on the sheet conveyed to the decoloring unit based on the reading result in the pre-decoloring reading unit. The post-decoloring reading unit reads an image on the sheet after the decoloring, which is conveyed by the second sheet conveying unit. The decoloring success or failure determining unit determines whether or not the decoloring in the decoloring unit is successful based on the reading result in the post-decoloring reading unit. The determination criterion setting unit sets a determination criterion in the decoloring success or failure determining unit, based on the type of image, which is determined by the type determining unit.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: April 1, 2014
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Ken Iguchi, Isao Yahata, Takahiro Kawaguchi, Hiroyuki Taguchi, Hiroyuki Tsuchihashi, Hiroyuki Taki
  • Patent number: 8670012
    Abstract: According to one embodiment, an erasing apparatus includes a paper feeding unit configured to feed a sheet having an image recorded, an erasing unit including a pressing roller and a heater that has a shape following the outer circumference of the pressing roller and includes a contact area with the pressing roller, the erasing unit being configured to erase the image formed on the sheet fed to a contact section of the pressing roller and the heater from the paper feeding unit, a temperature detecting unit configured to detect the temperature of the heater, a controller configured to control the heater according to the temperature detected by the temperature detecting unit, and a paper discharge unit configured to discharge the sheet on which the image is erased by the erasing unit.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: March 11, 2014
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Kikuo Mizutani, Isao Yahata, Takahiro Kawaguchi, Yoshiaki Sugizaki, Ken Iguchi, Hiroyuki Taki, Hiroyuki Tsuchihashi, Chiaki Iizuka, Hidetoshi Yokochi, Toshiaki Oshiro, Hiroyuki Hazu, Yoichi Yamaguchi, Hiroyuki Sugiyama, Yuichi Saito, Jun Ishii
  • Patent number: 8670011
    Abstract: In general, according to an embodiment, an erasing section erases the image on the sheet. A first conveying path conveys the sheet fed from a sheet feeding section and is provided with a reading section and a discharge section downstream of the reading section in a sheet conveying direction. A second conveying path is branched from the first conveying path downstream of the reading section in the sheet conveying direction and upstream of the discharge section in the sheet conveying direction. The second conveying path merges with the first conveying path upstream of the reading section in the sheet conveying direction and is provided with the erasing section. A sorting member, which is located at a branch point at which the second conveying path is branched from the first conveying path. A recording section is located on the first conveying path and records count information indicative of an erase count.
    Type: Grant
    Filed: May 30, 2012
    Date of Patent: March 11, 2014
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Kikuo Mizutani, Isao Yahata, Takahiro Kawaguchi, Yoshiaki Sugizaki, Ken Iguchi, Hiroyuki Taki, Hiroyuki Tsuchihashi, Chiaki Iizuka, Hidetoshi Yokochi
  • Publication number: 20140049708
    Abstract: Provided is a glass substrate for a liquid crystal lens, comprising, as a glass composition in terms of mol %, 45 to 75% of SiO2, 5 to 15% of Al2O3, 0 to 15% of B2O3, 0 to 15% of MgO, and 0 to 15% of CaO, and having a thickness of 400 ?m or less.
    Type: Application
    Filed: April 19, 2012
    Publication date: February 20, 2014
    Inventors: Takashi Murata, Takahiro Kawaguchi
  • Publication number: 20140045479
    Abstract: A communication control apparatus includes an acquirer that acquires operation information of a moving object having a shielded space therein, and a controller that controls at least one of a channel between a first base station installed in a car in the moving object and a second base station installed on each floor where the car is stoppable, transmission power of the first base station and transmission power of the second base station, and location information for locating a position of a mobile terminal for each floor where the car is stoppable, on the basis of the operation information.
    Type: Application
    Filed: July 19, 2013
    Publication date: February 13, 2014
    Inventors: Yuki SHINADA, Daisuke Nitta, Yutaka Hamada, Takahiro Kawaguchi, Hiromitsu Kawai, Masanori Hashimoto
  • Publication number: 20140045685
    Abstract: According to an embodiment, a method for color erasing process includes the steps of: supplying a power to a heat source configured to heat a sheet having an image formed thereon using a color erasable material so as to cause heat generation as warming-up control; stopping the power supply to the heat source for a predetermined period of time in the warming-up control if the temperature of the heat source is increased starting from a temperature lower than a predetermined reference value that is lower than a color erasing temperature of the color erasable material and exceeds the predetermined reference value; performing maintenance control that is power supply control to maintain the temperature of the heat source at the target temperature; and performing, after the passage of the predetermined period of time, a color erasing process by the heat source.
    Type: Application
    Filed: August 21, 2013
    Publication date: February 13, 2014
    Applicants: Toshiba Tec Kabushiki Kaisha, Kabushiki Kaisha Toshiba
    Inventors: KEN IGUCHI, Isao Yahata, Takahiro Kawaguchi, Yoshiaki Sugizaki, Kikuo Mizutani, Hiroyuki Taki, Hiroyuki Tsuchihashi, Chiaki Iizuka, Hidetoshi Yokochi, Toshiaki Oshiro, Hiroyuki Hazu, Yoichi Yamaguchi, Hiroyuki Sugiyama, Yuichi Saito
  • Patent number: 8644752
    Abstract: An image processing device has an image forming portion, a heating portion and a supplying portion. The image forming portion forms an image on a sheet. The heating portion heats the sheet on which the image is formed by the image forming portion at a predetermined temperature, to thereby fix the image on the sheet. The supplying portion supplies the sheet on which an image is fixed previously. Further, the heating portion heats the sheet on which the image is fixed and which is supplied from the supplying portion at a temperature higher than the predetermined temperature to thereby remove the image.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: February 4, 2014
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Isao Yahata, Ken Iguchi, Takahiro Kawaguchi, Hiroyuki Taguchi, Hiroyuki Tsuchihashi, Hiroyuki Taki
  • Patent number: 8636282
    Abstract: A sheet feed apparatus which includes a sheet feed tray in which a plurality of sheets is loaded in piles; a sheet feed roller which is provided at a forward position of the sheet feed tray in a sheet feed direction, and sends the loaded sheets inside thereof; and a lift detection sensor which detects, by using a movable lever, a lift of a sheet bundle which occurs when the sheet bundle, of which a rear or a side in a sheet feed direction is bound, is sent by the sheet feed roller therein, the lift detection sensor being provided at a side position of the sheet bundle in a width direction and at a backward position with respect to the center of the sheet bundle in the sheet feed direction.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: January 28, 2014
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Toshiaki Oshiro, Ken Iguchi, Isao Yahata, Kikuo Mizutani, Hiroyuki Taki, Chiaki Iizuka, Hidetoshi Yokochi, Yoshiaki Sugizaki, Takahiro Kawaguchi, Hiroyuki Tsuchihashi, Hiroyuki Hazu, Yoichi Yamaguchi, Hiroyuki Sugiyama, Yuichi Saito, Jun Ishii
  • Publication number: 20140015913
    Abstract: There is provided a device detecting curling of a sheet, the device including a first guide member carrying the sheet; a second guide member including a carriage path that is broader than the carriage path of the first guide member and accepting the curling of the sheet; and sensors with detection ranges into which a portion of the curling of the sheet enters, in the carriage path of the second guide member.
    Type: Application
    Filed: August 22, 2013
    Publication date: January 16, 2014
    Applicants: Toshiba Tec Kabushiki Kaisha, Kabushiki Kaisha Toshiba
    Inventors: Hiroyuki TSUCHIHASHI, Takahiro KAWAGUCHI, Isao YAHATA, Hiroyuki TAGUCHI, Ken IGUCHI, Hiroyuki TAKI
  • Publication number: 20130342624
    Abstract: According to one embodiment, a color erasing apparatus includes a color erasing section which erases a color of an image formed with an erasable color material on a sheet conveyed at first speed, a reading section which reads an image on the surface of the sheet conveyed at second speed higher than the first speed, a first conveying section, and a second conveying section. The first conveying section includes a first conveying roller arranged downstream in a sheet conveying direction of the color erasing section and conveys the sheet at the first speed. The second conveying section includes a second conveying roller arranged upstream in the sheet conveying direction of the reading section and in a position where the second conveying roller nips the conveyed sheet simultaneously with the first conveying roller. The second conveying section conveys the sheet to the reading section at the second speed.
    Type: Application
    Filed: August 22, 2013
    Publication date: December 26, 2013
    Applicants: Toshiba Tec Kabushiki Kaisha, Kabushiki Kaisha Toshiba
    Inventors: HIROYUKI TAKI, Hiroyuki Tsuchihashi, Takahiro Kawaguchi, Isao Yahata, Yoshiaki Sugizaki, Kikuo Mizutani, Ken Iguchi, Chiaki IIzuka, Hidetoshi Yokochi, Toshiaki Oshiro, Hiroyuki Hazu, Yoichi Yamaguchi, Hiroyuki Sugiyama, Yuichi Saito
  • Publication number: 20130334760
    Abstract: When the presence or absence of a malfunction is respectively determined in a decoloring section or a separation device, and it is determined that either the decoloring section or the separation device is malfunctioning, only the other is executable.
    Type: Application
    Filed: August 16, 2013
    Publication date: December 19, 2013
    Applicants: TOSHIBA TEC KABUSHIKI KAISHA, KABUSHIKI KAISHA TOSHIBA
    Inventors: Ken IGUCHI, Takahiro KAWAGUCHI, Isao YAHATA, Hiroyuki TAGUCHI, Hiroyuki TSUCHIHASHI, Hiroyuki TAKI
  • Patent number: 8608166
    Abstract: A sheet conveyance control method in an apparatus including a first conveying path for leading a sheet from a feeing port to a discharge port, a second sheet conveying path for leading the sheet to another conveyance destination, and a decoloring processing section configured to decolor an image formed on the sheet includes: detecting the length of the sheet further on a downstream side than the feeding port and further on an upstream side than a branching point of the first and second sheet conveying paths in a sheet conveying direction of the first sheet conveying path; and changing, if the trailing end of the sheet is not detected in a period after the leading end of the sheet is detected and before the leading end of the sheet reaches the branching point, a first flapper to a state in which the sheet is conveyed to the discharge port.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: December 17, 2013
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Ken Iguchi, Hiroyuki Tsuchihashi, Isao Yahata, Takahiro Kawaguchi, Hiroyuki Taguchi, Hiroyuki Taki
  • Patent number: 8564631
    Abstract: An image erasing apparatus includes: a supply unit which supplies a recording medium; a collection unit which collects the recording medium supplied by the supply unit; plural carrying roller pairs which carry the recording medium supplied by the supply unit, toward the collection unit; a detection unit which acquires information about a metallic foreign matter adhering to the recording medium; a heating unit which heats the recording medium to a color erasing temperature of a developer or higher; and a carrying control unit which decelerates a rotation speed of the plural carrying roller pairs from a first speed to a second speed when the information about the metallic foreign matter is acquired by the detection unit.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: October 22, 2013
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Hiroyuki Taguchi, Isao Yahata, Ken Iguchi, Takahiro Kawaguchi, Hiroyuki Tsuchihashi, Hiroyuki Taki
  • Publication number: 20130267412
    Abstract: According to one embodiment, a transporting path transports a paper with a heat erasable image. A first color erasing unit has a first heat roller and a first press roller. A second color erasing unit, downstream of the first color erasing unit, has a second heat roller and a second press roller. A gear drive train, engages the first heat roller and the second heat roller. An opening and closing mechanism moves between an open and a closed position. While maintaining the state of the gear drive train, the open position has the first press roller separated from the first heat roller and the second press roller separated from the second heat roller. In the closed position, the first press roller is in close proximity to the first heat roller and the second press roller is in close proximity to the second heat roller.
    Type: Application
    Filed: April 8, 2013
    Publication date: October 10, 2013
    Applicant: Toshiba Tec Kabushiki Kaisha
    Inventor: Takahiro KAWAGUCHI
  • Patent number: 8550448
    Abstract: According to one embodiment, a decolorizing device includes a first stacker to stack sheets to be decolorized images on the sheets, a second stacker arranged adjacent to the first stacker, wherein the sheets stacked on the first stacker is kept waiting on the second stacker in order to be decolorized the images, a pressing unit to urge the sheets stacked on the second stacker downward and keep the sheets stacked on the second stacker flat, an image decolorizing unit to decolorize the images on the sheets, and a sheet feed unit positioned on an upper surface of the pressing unit to convey the sheets pressed on the pressing unit from the second stacker to the image decolorizing unit.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: October 8, 2013
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Ken Iguchi, Isao Yahata, Takahiro Kawaguchi, Hiroyuki Taguchi, Hiroyuki Tsuchihashi, Hiroyuki Taki
  • Publication number: 20130258027
    Abstract: An image erasing apparatus comprising: a scanning unit; a memory unit; a erasing unit; a first conveying unit includes a first conveying direction as a conveying direction of the sheet; a storage unit that stores the sheet which is scanned by the scanning unit and is not conveyed to the erasing unit by the first conveyance unit; a second conveyance unit that once conveys the sheet from the first conveying unit to the storage unit, then return the sheet to the first conveyance unit; and an interface unit that displays the image data stored in the memory unit and receives an instruction from a user, when the instruction for erasure is received, the interface unit operates the first conveyance unit and the second conveyance unit so as to conveys to the erasing unit, the sheet stored in the storage unit.
    Type: Application
    Filed: May 24, 2013
    Publication date: October 3, 2013
    Applicants: Toshiba Tec Kabushiki Kaisha, Kabushiki Kaisha Toshiba
    Inventors: Isao Yahata, Ken Iguchi, Takahiro Kawaguchi, Hiroyuki Taguchi, Hiroyuki Tsuchihashi, Hiroyuki Taki