Patents by Inventor Isao Yahata
Isao Yahata 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: 9925817Abstract: 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: GrantFiled: June 8, 2012Date of Patent: March 27, 2018Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHAInventors: Hiroyuki Tsuchihashi, Kikuo Mizutani, Hidetoshi Yokochi, Isao Yahata, Takahiro Kawaguchi, Yoshiaki Sugizaki, Hiroyuki Taki, Ken Iguchi, Chiaki Iizuka
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Patent number: 9908357Abstract: In accordance with one embodiment, a decoloring apparatus comprises a processor, a decoloring section, a shift roller, a paper discharge section and a paper discharge roller. The processor determines whether or not to execute either a decoloring job or a non-decoloring job. The decoloring section decolors an image on paper formed with decolorable coloring agent. The shift roller moves paper for decoloring job or paper for non-decoloring job in a direction orthogonal to a paper discharge direction of the paper on a same plane for a given distance to sort it. The paper discharge section stacks discharged papers. The paper discharge roller discharges the paper sorted by the shift roller to the paper discharge section.Type: GrantFiled: December 8, 2016Date of Patent: March 6, 2018Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHAInventor: Isao Yahata
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Patent number: 9835998Abstract: In accordance with an embodiment, a sheet processing apparatus comprises a decoloring section, a stacking section, an image forming section, a sheet feed roller and a combined roller. The decoloring section carries out a decoloring processing on a sheet. The sheet subjected to the decoloring processing is discharged to the stacking section. The image forming section carries out an image forming processing on the sheet fed from the stacking section. The sheet feed roller feeds a sheet stacked in the stacking section to a conveyance path through which the sheet is fed to the image forming section. The combined roller aligns the sheets to be discharged to the stacking section at a reference position in a conveyance direction in which the sheets are conveyed to the sheet feed roller, and feeds the sheets stacked in the stacking section to the sheet feed roller along the conveyance direction.Type: GrantFiled: January 26, 2016Date of Patent: December 5, 2017Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHAInventors: Kikuo Mizutani, Ken Iguchi, Isao Yahata, Hiroyuki Sugiyama
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Patent number: 9776448Abstract: According to one embodiment, an image erasing apparatus includes a sheet supply section, a discharge tray, a first conveying path, a reader, a second conveying path, an erasing unit and a switching section. A controller controls the first conveying path, the reader, the second conveying path, the erasing unit and the switching section depending on a selected mode. When the selected mode is an erasing mode, the sheet is conveyed on the first conveying path without being read by the reader, conveyed on the second conveying path where the image is erased by the erasing unit, and then conveyed to the discharge tray. When the selected mode is a reading mode, the sheet is conveyed on the first conveying path where the surface of the sheet is read by the reader, and then conveyed to the discharge tray without being conveyed on the second conveying path.Type: GrantFiled: February 11, 2016Date of Patent: October 3, 2017Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHAInventors: Ken Iguchi, Hidetoshi Yokochi, Isao Yahata, Takahiro Kawaguchi, Yoshiaki Sugizaki, Kikuo Mizutani, Hiroyuki Taki, Hiroyuki Tsuchihashi, Chiaki Iizuka
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Publication number: 20170212460Abstract: In accordance with an embodiment, a sheet processing apparatus comprises a decoloring section, a stacking section, an image forming section, a sheet feed roller and a combined roller. The decoloring section carries out a decoloring processing on a sheet. The sheet subjected to the decoloring processing is discharged to the stacking section. The image forming section carries out an image forming processing on the sheet fed from the stacking section. The sheet feed roller feeds a sheet stacked in the stacking section to a conveyance path through which the sheet is fed to the image forming section. The combined roller aligns the sheets to be discharged to the stacking section at a reference position in a conveyance direction in which the sheets are conveyed to the sheet feed roller, and feeds the sheets stacked in the stacking section to the sheet feed roller along the conveyance direction.Type: ApplicationFiled: January 26, 2016Publication date: July 27, 2017Inventors: Kikuo Mizutani, Ken Iguchi, Isao Yahata, Hiroyuki Sugiyama
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Publication number: 20170176911Abstract: An image processing apparatus comprises a first sheet supply mounted on a side wall and comprising a bottom extending upwards in the vertical direction at a predetermined angle from the side wall and a wall member vertically arranged on the bottom and forming a space with the bottom, and configured to house a sheet; a second sheet supply different from the first sheet supply and configured to store sheet flatly; a conveyance section configured to convey the sheet supplied from the first sheet supply or the second sheet supply to a processing section; and a controller to convey the sheet from the first sheet supply to the processing device if each of the first sheet supply and the second sheet supply houses the sheet.Type: ApplicationFiled: July 26, 2016Publication date: June 22, 2017Inventors: Ken Iguchi, Isao Yahata
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Publication number: 20170120656Abstract: An image forming apparatus according to an embodiment includes a feeder unit that stores a sheet on which no image is formed. A printer device forms an image on the sheet stored by the feeder unit. An erasing apparatus is connectably and detachably attached to the image forming apparatus. The erasing apparatus includes a first sheet stack that stores an unerased sheet on which an image is formed and an erasing device that erases the image formed on the unerased sheet.Type: ApplicationFiled: January 16, 2017Publication date: May 4, 2017Inventors: Isao YAHATA, Ken Iguchi, Naofumi Soga
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Publication number: 20170087913Abstract: In accordance with one embodiment, a decoloring apparatus comprises a processor, a decoloring section, a shift roller, a paper discharge section and a paper discharge roller. The processor determines whether or not to execute either a decoloring job or a non-decoloring job. The decoloring section decolors an image on paper formed with decolorable coloring agent. The shift roller moves paper for decoloring job or paper for non-decoloring job in a direction orthogonal to a paper discharge direction of the paper on a same plane for a given distance to sort it. The paper discharge section stacks discharged papers. The paper discharge roller discharges the paper sorted by the shift roller to the paper discharge section.Type: ApplicationFiled: December 8, 2016Publication date: March 30, 2017Inventor: Isao Yahata
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Publication number: 20170080736Abstract: An image erasing apparatus according to an embodiment includes a sheet supply portion that supplies a sheet and an ejector. A first conveying path conveys the sheet from the sheet supply portion toward the ejector. A reader arranged on the first conveying path reads an image on the sheet. A second conveying path branches from the first conveying path at a downstream of the reader on the first conveying path and merges with the first conveying path at an upstream of the reader on the first conveying path. An erasing unit is arranged on the second conveying path. A conveying path changing portion is arranged at a branching portion. An operating portion receives a setup of the processing to the sheet. A controller changes a conveying path of the sheet in accordance with the setup received by the operating portion before the sheet is supplied from the sheet supply portion.Type: ApplicationFiled: November 30, 2016Publication date: March 23, 2017Inventors: Ken IGUCHI, Hidetoshi YOKOCHI, Isao YAHATA, Takahiro KAWAGUCHI, Yoshiaki SUGIZAKI, Kikuo MIZUTANI, Hiroyuki TAKI, Hiroyuki TSUCHIHASHI, Chiaki IIZUKA
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Patent number: 9599402Abstract: According to one embodiment, a system for a decoloring information management of a decoloring apparatus includes an decoloring processing unit, a sheet conveying unit, a sheet reading unit, a user ID reading unit, a storing unit configured to store a predetermined information, and a control unit. A sheet on which an image is formed with an decolorable colorant is subject to decoloring processing. The sheet conveying unit conveys the sheet and causes the sheet to pass through the decoloring processing unit. The sheet reading unit is arranged further on an upstream side than the decoloring processing unit. The user ID reading unit reads ID information of a user. The storing unit stores predetermined information. The control unit controls the storage unit to correlate the user ID and the read information by the sheet reading unit.Type: GrantFiled: October 17, 2014Date of Patent: March 21, 2017Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHAInventors: Ken Iguchi, Hiroyuki Taki, Takahiro Kawaguchi, Isao Yahata, Hiroyuki Taguchi, Hiroyuki Tsuchihashi
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Patent number: 9579917Abstract: In one embodiment, an erasing apparatus stores a first feeder unit and an erasing device. A casing of the erasing apparatus supports the first sheet stack and the erasing device slidably in a direction perpendicular to a direction of supplying a sheet from the first sheet stack to the erasing device. The first sheet stack and the erasing device are movable into and out of the casing.Type: GrantFiled: November 16, 2015Date of Patent: February 28, 2017Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHAInventors: Isao Yahata, Ken Iguchi, Naofumi Soga
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Patent number: 9566815Abstract: According to one embodiment, a first conveying path to form a conveying path from the sheet supply portion toward the ejector, a reader arranged on the first conveying path to read an image on a surface of the sheet, an erasure to erase the image on the sheet formed with image erasable material, a switching portion arranged on the first conveying path at a downstream side of the reader in a sheet conveying direction to switch the sheet conveying direction to a direction of the ejector or a direction of the erasure, and a second conveying path having the erasure which, at a position where the switching portion is arranged, branches from the first conveying path at the downstream side of the reader and merges with the first conveying path at a meeting point between the sheet supply portion and the reader.Type: GrantFiled: May 30, 2014Date of Patent: February 14, 2017Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHAInventors: Ken Iguchi, Hidetoshi Yokochi, Isao Yahata, Takahiro Kawaguchi, Yoshiaki Sugizaki, Kikuo Mizutani, Hiroyuki Taki, Hiroyuki Tsuchihashi, Chiaki Iizuka
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Patent number: 9545809Abstract: In accordance with one embodiment, a decoloring apparatus comprises a processor, a decoloring section, a shift roller, a paper discharge section and a paper discharge roller. The processor determines whether or not to execute either a decoloring job or a non-decoloring job. The decoloring section decolors an image on paper formed with decolorable coloring agent. The shift roller moves paper for decoloring job or paper for non-decoloring job in a direction orthogonal to a paper discharge direction of the paper on a same plane for a given distance to sort it. The paper discharge section stacks discharged papers. The paper discharge roller discharges the paper sorted by the shift roller to the paper discharge section.Type: GrantFiled: March 12, 2015Date of Patent: January 17, 2017Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHAInventor: Isao Yahata
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Patent number: 9539842Abstract: An image erasing method, according to an embodiment, includes the steps of supplying a sheet from a sheet supply section and conveying the sheet from the sheet supply section on a first conveying path. The method further includes controlling, based on a selected mode, the first conveying path, a reader, a second conveying path, an erasing unit, and a switching section. When the selected mode is an erasing mode, the sheet is conveyed on the first conveying path without being read by the reader, conveyed on the second conveying path where the image is erased by the erasing unit, and then conveyed to a discharge tray. When the selected mode is a reading mode, the sheet is conveyed on the first conveying path where the surface of the sheet is read by the reader, and then conveyed to the discharge tray without being conveyed on the second conveying path.Type: GrantFiled: February 11, 2016Date of Patent: January 10, 2017Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHAInventors: Ken Iguchi, Hidetoshi Yokochi, Isao Yahata, Takahiro Kawaguchi, Yoshiaki Sugizaki, Kikuo Mizutani, Hiroyuki Taki, Hiroyuki Tsuchihashi, Chiaki Iizuka
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Patent number: 9505257Abstract: An erasing apparatus includes a sheet feeding unit from which a sheet is fed into the erasing apparatus, an erasing unit configured to perform an erasing processing on both surfaces of the sheet, a scanning unit configured to scan and generate image data of a bottom surface and a top surface of the sheet, a first storing unit, a second storing unit, and a controller. The controller is configured to determine, based on the image data, whether the bottom surface of the sheet is reusable and whether the top surface of the sheet is reusable. Further, the controller is configured to cause, if both the bottom and top surfaces have been subject to the erasing processing and are determined to be reusable, the sheet to be conveyed to one of the first and second storing units based on a both-sides-erased criteria.Type: GrantFiled: December 9, 2015Date of Patent: November 29, 2016Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHAInventor: Isao Yahata
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Patent number: 9477186Abstract: An image processing device has a first supplying portion that supplies a sheet on which an image is fixed previously. A removing portion removes the image formed on the sheet. A first storing portion stores the sheet from which the image is removed by the removing portion. The first supplying portion and the first storing portion are integrally formed as a unit capable of detaching from the main body of the image processing device.Type: GrantFiled: November 16, 2015Date of Patent: October 25, 2016Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHAInventors: Isao Yahata, Ken Iguchi, Takahiro Kawaguchi, Hiroyuki Taguchi, Hiroyuki Tsuchihashi, Hiroyuki Taki
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Publication number: 20160263924Abstract: In accordance with one embodiment, a decoloring apparatus comprises a processor, a decoloring section, a shift roller, a paper discharge section and a paper discharge roller. The processor determines whether or not to execute either a decoloring job or a non-decoloring job. The decoloring section decolors an image on paper formed with decolorable coloring agent. The shift roller moves paper for decoloring job or paper for non-decoloring job in a direction orthogonal to a paper discharge direction of the paper on a same plane for a given distance to sort it. The paper discharge section stacks discharged papers. The paper discharge roller discharges the paper sorted by the shift roller to the paper discharge section.Type: ApplicationFiled: March 12, 2015Publication date: September 15, 2016Inventor: Isao Yahata
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Publication number: 20160159129Abstract: According to one embodiment, an image erasing apparatus includes a sheet supply section, a discharge tray, a first conveying path, a reader, a second conveying path, an erasing unit and a switching section. A controller controls the first conveying path, the reader, the second conveying path, the erasing unit and the switching section depending on a selected mode. When the selected mode is an erasing mode, the sheet is conveyed on the first conveying path without being read by the reader, conveyed on the second conveying path where the image is erased by the erasing unit, and then conveyed to the discharge tray. When the selected mode is a reading mode, the sheet is conveyed on the first conveying path where the surface of the sheet is read by the reader, and then conveyed to the discharge tray without being conveyed on the second conveying path.Type: ApplicationFiled: February 11, 2016Publication date: June 9, 2016Inventors: Ken Iguchi, Hidetoshi Yokochi, Isao Yahata, Takahiro Kawaguchi, Yoshiaki Sugizaki, Kikuo Mizutani, Hiroyuki Taki, Hiroyuki Tsuchihashi, Chiaki IIzuka
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Publication number: 20160159130Abstract: An image erasing method, according to an embodiment, includes the steps of supplying a sheet from a sheet supply section and conveying the sheet from the sheet supply section on a first conveying path. The method further includes controlling, based on a selected mode, the first conveying path, a reader, a second conveying path, an erasing unit, and a switching section. When the selected mode is an erasing mode, the sheet is conveyed on the first conveying path without being read by the reader, conveyed on the second conveying path where the image is erased by the erasing unit, and then conveyed to a discharge tray. When the selected mode is a reading mode, the sheet is conveyed on the first conveying path where the surface of the sheet is read by the reader, and then conveyed to the discharge tray without being conveyed on the second conveying path.Type: ApplicationFiled: February 11, 2016Publication date: June 9, 2016Inventors: Ken Iguchi, Hidetoshi Yokochi, Isao Yahata, Takahiro Kawaguchi, Yoshiaki Sugizaki, Kikuo Mizutani, Hiroyuki Taki, Hiroyuki Tsuchihashi, Chiaki IIzuka
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Publication number: 20160136987Abstract: In one embodiment, an erasing apparatus stores a first feeder unit and an erasing device. A casing of the erasing apparatus supports the first sheet stack and the erasing device slidably in a direction perpendicular to a direction of supplying a sheet from the first sheet stack to the erasing device. The first sheet stack and the erasing device are movable into and out of the casing.Type: ApplicationFiled: November 16, 2015Publication date: May 19, 2016Inventors: Isao YAHATA, Ken IGUCHI, Naofumi SOGA