Patents by Inventor Hiroyuki Taki
Hiroyuki Taki 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).
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Patent number: 8441508Abstract: An image erasing apparatus includes: a first carrying section carrying a recording medium; a second carrying section carrying the recording medium; a branching section branching a carrying path into the first carrying section and the second carrying section; a first erasing section erasing an image of the recording medium in the first carrying section; a second erasing section erasing the image of the recording medium in the second carrying section; a third carrying section carrying the recording medium passing through the first erasing section to the second carrying section; and a control section selecting the carrying path of the recording medium depending on an image erasing mode.Type: GrantFiled: June 10, 2010Date of Patent: May 14, 2013Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Hiroyuki Taki, Isao Yahata, Takahiro Kawaguchi, Hiroyuki Taguchi, Hiroyuki Tsuchihashi, Ken Iguchi
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Patent number: 8427516Abstract: 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: GrantFiled: June 17, 2010Date of Patent: April 23, 2013Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Takahiro Kawaguchi, Isao Yahata, Hiroyuki Taguchi, Ken Iguchi, Hiroyuki Tsuchihashi, Hiroyuki Taki
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Patent number: 8412091Abstract: An image erasing apparatus includes a recording medium height sensor sensing the height of recording mediums stacked on a discharge tray, a discharge tray lifting and lowering mechanism lifting and lowering the discharge tray, a shifting mechanism shifting and discharging the recording mediums, and a controller controlling a discharging operation so that the height of recording mediums on the discharge tray is equal to a desired height on the basis of the output of the recording medium height sensor.Type: GrantFiled: June 16, 2010Date of Patent: April 2, 2013Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Ken Iguchi, Isao Yahata, Takahiro Kawaguchi, Hiroyuki Taguchi, Hiroyuki Tsuchihashi, Hiroyuki Taki
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Patent number: 8405696Abstract: A printing sheet reusability determination device includes a sheet carrying path that carries a second state sheet obtained by erasing an erasable image from a first state sheet on which the erasable image is printed, an imaging portion that images the second state sheet on the sheet carrying path, an illumination portion that illuminates the second state sheet on the sheet carrying path at a first irradiation angle when images remaining on the second state sheet are photographed, and at a second irradiation angle smaller than the first irradiation angle when a projected image generated by illuminating the second state sheet is photographed, an irradiation angle changing portion that changes the first irradiation angle and the second irradiation angle, and a reusability determination portion that determines whether or not to reuse the second state sheet based on imaging information obtained by the imaging of the imaging portion at the first irradiation angle and determines whether or not to reuse the second sType: GrantFiled: March 7, 2011Date of Patent: March 26, 2013Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Isao Yahata, Hiroyuki Tsuchihashi, Ken Iguchi, Takahiro Kawaguchi, Hiroyuki Taguchi, Hiroyuki Taki
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Publication number: 20130061409Abstract: An erasing device of one embodiment includes a conveyance unit that conveys a sheet; a pair of rotating brushes is provided corresponding to both side portions in a width direction perpendicular to a sheet conveyance direction of the sheet conveyed by the conveyance unit, the rotating brushes being provided to oppose to each other, nipping the conveyed sheet, the rotating brushes rotating in the same direction as the sheet conveyance direction such that a circumferential speed of the brush tip has a higher speed than a conveyance speed of the sheet, the rotating brushes rolling and correcting a corner fold portion which occurs on the sheet conveyed by the brush tip portion while rotating; and an erasing unit is provided downstream in the sheet conveyance direction than the rotating brush, the erasing unit erasing an image which is formed on the sheet.Type: ApplicationFiled: September 4, 2012Publication date: March 14, 2013Applicants: Toshiba Tec Kabushiki Kaisha, Kabushiki Kaisha ToshibaInventors: Yoichi Yamaguchi, Ken Iguchi, Isao Yahata, Takahiro Kawaguchi, Yoshiaki Sugizaki, Kikuo Mizutani, Hiroyuki Taki, Hiroyuki Tsuchihashi, Chiaki Iizuka, Hidetoshi Yokochi, Toshiaki Oshiro, Hiroyuki Hazu, Hiroyuki Sugiyama, Yuichi Saito, Jun Ishii
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Publication number: 20130057633Abstract: An image erasing apparatus includes: a first carrying section carrying a recording medium; a second carrying section carrying the recording medium; a branching section branching a carrying path into the first carrying section and the second carrying section; a first erasing section erasing an image of the recording medium in the first carrying section; a second erasing section erasing the image of the recording medium in the second carrying section; a third carrying section carrying the recording medium pas sing through the first erasing section to the second carrying section; and a control section selecting the carrying path of the recording medium depending on an image erasing mode.Type: ApplicationFiled: November 2, 2012Publication date: March 7, 2013Inventors: Hiroyuki Taki, Isao Yahata, Takahiro Kawaguchi, Hiroyuki Taguchi, Hiroyuki Tsuchihashi, Ken Iguchi
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Publication number: 20130015623Abstract: 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: ApplicationFiled: September 14, 2012Publication date: January 17, 2013Applicants: Toshiba Tec Kabushiki Kaisha, Kabushiki Kaisha ToshibaInventors: Ken IGUCHI, Isao YAHATA, Takahiro KAWAGUCHI, Hiroyuki TAGUCHI, Hiroyuki TSUCHIHASHI, Hiroyuki TAKI
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Publication number: 20130010046Abstract: 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: ApplicationFiled: September 14, 2012Publication date: January 10, 2013Applicants: Toshiba Tec Kabushiki Kaisha, Kabushiki Kaisha ToshibaInventors: Hiroyuki Taguchi, Isao Yahata, Ken Iguchi, Takahiro Kawaguchi, Hiroyuki Tsuchihashi, Hiroyuki Taki
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Patent number: 8350877Abstract: There is provided a print state detection device for a printed sheet surface including a sheet conveying path on which a sheet printed with an image is conveyed, a contact member that contacts with the surface of the sheet moving on the sheet conveying path, a contact state detecting part that detects a physical phenomenon occurring when the contact member contacts with the sheet, a separating part that separates the difference in the physical phenomenon occurring when the contact member comes into contact with the ground of the sheet surface and when the contact member comes into contact with an image, based on detection information obtained by the detection of the contact state detecting part, and a print state determining part that determines the print state of an image on one sheet based on separation information obtained by the separation by the separating part.Type: GrantFiled: March 7, 2011Date of Patent: January 8, 2013Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Takahiro Kawaguchi, Isao Yahata, Ken Iguchi, Hiroyuki Taguchi, Hiroyuki Tsuchihashi, Hiroyuki Taki
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Patent number: 8350878Abstract: An image erasing apparatus includes: a supply unit that supplies a recording medium; a recovery unit that recovers the recording medium supplied by the supply unit; a plurality of pairs of carrying rollers that carry the recording medium supplied by the supply unit toward the recovery unit; a detecting unit that acquires information regarding foreign matter made of metal attached to the recording medium; a heating unit that heats the recording medium to a temperature equal to or higher than a color-erasing temperature of a developer; and a carriage control unit that reduces a rotation speed of the plurality of pairs of rollers from a first speed to a second speed when the detecting unit acquires the information regarding the foreign matter made of metal.Type: GrantFiled: March 7, 2011Date of Patent: January 8, 2013Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Hiroyuki Taguchi, Isao Yahata, Ken Iguchi, Takahiro Kawaguchi, Hiroyuki Tsuchihashi, Hiroyuki Taki
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Publication number: 20130003134Abstract: A sheet loading apparatus includes a loading member which loads the sheet discharged by the discharge member, a tip support member which abuts against the leading edge of the sheet discharged by the discharge member in the sheet discharge direction, a rotation member which abuts against an upper surface of the sheet discharged to the loading member, and is rotated to transport the sheet to the stopper side, and a control section which controls a transport amount of the sheet through the rotation member based on a loading amount of the sheet loaded on the loading member.Type: ApplicationFiled: June 27, 2012Publication date: January 3, 2013Applicants: Toshiba Tec Kabushiki Kaisha, Kabushiki Kaisha ToshibaInventors: Hiroyuki HAZU, Ken IGUCHI, Yuichi SAITO, Isao YAHATA, Takahiro KAWAGUCHI, Yoshiaki SUGIZAKI, Kikuo MIZUTANI, Hiroyuki TAKI, Hiroyuki TSUCHIHASHI, Chiaki IIZUKA, Hidetoshi YOKOCHI, Toshiaki OSHIRO, Yoichi YAMAGUCHI, Hiroyuki SUGIYAMA, Jun ISHII
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Publication number: 20130003138Abstract: A shading device includes: a shading member to pass a conveying path for conveying a recoding medium to plural image reading sections and reach the plural image reading sections; and a moving member to move the shading member between the plural image reading sections and a retracted position on the outside of the conveying path.Type: ApplicationFiled: May 30, 2012Publication date: January 3, 2013Applicants: Toshiba Tec Kabushiki Kaisha, Kabushiki Kaisha ToshibaInventors: Yoshiaki Sugizaki, Hidetoshi Yokochi, Hiroyuki Tsuchihashi, Isao Yahata, Takahiro Kawaguchi, Ken Iguchi, Kikuo Mizutani, Hiroyuki Taki, Chiaki Ilzuka, Toshiaki Oshiro, Hiroyuki Hazu, Yoichi Yamaguchi, Hiroyuki Sugiyama, Yuichi Saito, Jun Ishii
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Publication number: 20130001050Abstract: A sheet processing apparatus includes: a conveying member configured to convey a sheet; a first opening section including a conveyance guide section arranged on the opposite side of the conveying member across a conveying path and configured to form the conveying path and a first pivot shaft configured to pivotably support the conveyance guide section, the first opening section being configured to form the conveying path using the conveyance guide section if changing to a closed state and open the conveying path if changing to an open state; and a second opening section including a cover section configured to cover the first opening section if the first opening section changes to the closed state and a second pivot shaft configured to pivotably support the cover section, the second opening section being configured to cause, if pivoting, the first opening section to pivot following the second opening section.Type: ApplicationFiled: June 21, 2012Publication date: January 3, 2013Applicants: Toshiba Tec Kabushiki Kaisha, Kabushiki Kaisha ToshibaInventors: Toshiaki OSHIRO, Isao Yahata, Takahiro Kawaguchi, Yoshiaki Sugizaka, Kikuo Mizutani, Hiroyuki Taki, Hiroyuki Tsuchihashi, Chiaki IIzuka, Hidetoshi Yokochi, Ken Iguchi, Hiroyuki Hazu, Yoichi Yamaguchi, Hiroyuki Sugiyama, Yuichi Saito
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Publication number: 20130002782Abstract: According to one embodiment, an erasing apparatus for a sheet includes a conveying path configured to convey a sheet on which an image is formed with a coloring agent that is erased by heating, a first erasing section including, on an upstream side of the conveying path, a first heating member provided on one surface side of the sheet and a first rotating roller provided to be opposed to the first heating member, and a second erasing section including, on a downstream side of the first erasing section, a second heating member provided on the other surface side of the sheet and a second rotating roller provided to be opposed to the second heating member.Type: ApplicationFiled: May 30, 2012Publication date: January 3, 2013Applicant: Kabushiki Kaisha ToshibaInventors: Takahiro KAWAGUCHI, Yoshiaki SUGIZAKI, Hiroyuki TAKI, Isao YAHATA, Ken IGUCHI, Kikuo MIZUTANI, Hiroyuki TSUCHIHASHI, Chiaki IIZUKA, Hidetoshi YOKOCHI, Toshiaki OSHIRO, Hiroyuki HAZU, Yoichi YAMAGUCHI, Hiroyuki SUGIYAMA
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Publication number: 20130002783Abstract: 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: ApplicationFiled: June 20, 2012Publication date: January 3, 2013Applicants: Toshiba Tec Kabushiki Kaisha, Kabushiki Kaisha ToshibaInventors: 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
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Publication number: 20130002784Abstract: 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: ApplicationFiled: June 27, 2012Publication date: January 3, 2013Applicants: Toshiba Tec Kabushiki Kaisha, Kabushiki Kaisha ToshibaInventors: 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
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Publication number: 20130001860Abstract: In general, in a sheet feeding device of embodiments, a shaft connects through an one-way clutch structure to a conveying roller, rotates in a first direction and a second direction opposite to the first direction, transmits the torque to the conveying roller to cause the conveying roller to rotate in the first direction if the shaft rotates in the first direction. The shaft does not transmit the torque to the conveying roller if the shaft rotates in the second direction. The shaft limits the rotation of the conveying roller in the second direction while the shaft is in a rotation-stop state. A controller has a second mode in which the shaft is rotated in a second direction to allow rotation of the conveying roller in the second direction.Type: ApplicationFiled: June 26, 2012Publication date: January 3, 2013Applicants: Toshiba Tec Kabushiki Kaisha, Kabushiki Kaisha ToshibaInventors: Toshiaki OSHIRO, Yoichi Yamaguchi, Isao Yahata, Takahiro Kawaguchi, Yoshiaki Sugizaki, Kikuo Mizutani, Hiroyuki Taki, Hiroyuki Tsuchihashi, Chiaki Iizuka, Hidetoshi Yokochi, Ken Iguchi, Hiroyuki Hazu, Hiroyuki Sugiyama
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Publication number: 20120319348Abstract: 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: ApplicationFiled: June 15, 2012Publication date: December 20, 2012Applicants: Toshiba Tec Kabushiki Kaisha, Kabushiki Kaisha ToshibaInventors: 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
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Publication number: 20120315591Abstract: An erasing apparatus of embodiments has a color erasing device, the color erasing device has: a first heating member; a second heating member provided at a position facing the first heating member so as to form a nip portion therebetween through which the sheet is passed; a halogen lamp configured to heat the second heating member from outside thereof; and a reflector provided at a position opposite to the second heating member with the halogen lamp interposed therebetween and having a reflective surface configured to reflect heat received from the halogen lamp toward the second heating member, the reflector forming a guiding section configured to be in sliding contact with the sheet being conveyed so as to guide the sheet to the nip portion, the guiding section being heated by the halogen lamp.Type: ApplicationFiled: June 8, 2012Publication date: December 13, 2012Applicants: Toshiba Tec Kabushiki Kaisha, Kabushiki Kaisha ToshibaInventors: Hiroyuki TSUCHIHASHI, Kikuo Mizutani, Hidetoshi Yokochi, Isao Yahata, Takahiro Kawaguchi, Yoshiaki Sugizaki, Hiroyuki Taki, Ken Iguchi, Chiaki Iizuka
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Patent number: 8328186Abstract: A post-processing method involves using a standby tray to receive a paper sheet to be supplied from a digital copier, a processing tray to receive a paper sheet dropped from a standby tray, a feed member which guides the rear end of a paper sheet received in a standby tray in the feeding direction to a processing tray, and scrapes and sends the rear end of a paper sheet dropped onto a processing tray to a stopper, a press member which clamps the rear end of a paper sheet received in a standby tray by cooperating with two feed members, and a stapler to staple the aligned rear ends of paper sheets. When a first paper sheet is supplied to the standby tray, the press member presses the rear end of the first paper sheet, to receive a second paper.Type: GrantFiled: June 10, 2010Date of Patent: December 11, 2012Assignee: Toshiba Tec Kabushiki KaishaInventors: Yasunobu Terao, Mikio Yamamoto, Yoshiaki Sugizaki, Hajime Yamamoto, Hiroyuki Taki