Patents by Inventor Hiroyuki Hazu
Hiroyuki Hazu 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: 9065948Abstract: 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: GrantFiled: May 30, 2012Date of Patent: June 23, 2015Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHAInventors: Yoshiaki Sugizaki, Hidetoshi Yokochi, Hiroyuki Tsuchihashi, Isao Yahata, Takahiro Kawaguchi, Ken Iguchi, Kikuo Mizutani, Hiroyuki Taki, Chiaki Iizuka, Toshiaki Oshiro, Hiroyuki Hazu, Yoichi Yamaguchi, Hiroyuki Sugiyama, Yuichi Saito, Jun Ishii
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Patent number: 9045307Abstract: According to an embodiment, a first discharging unit and a second discharging unit discharge a sheet. A first conveying path extends from a scanning unit to the first discharging unit. A second conveying path branches off from the first conveying path at a branch point of the first conveying path and extends to the second discharging unit. A conveying member discharges the sheet to the first discharging unit when a discharging destination of the sheet is the first discharging unit, and the conveying member makes part of the sheet project from the first conveying path to the first discharging unit, locates an upstream tip end of the sheet in a sheet conveying direction, at a position downstream in the sheet conveying direction from the branch point, and conveys the sheet to switchback to the second conveying path, when the discharging destination of the sheet is the second discharging unit.Type: GrantFiled: May 30, 2012Date of Patent: June 2, 2015Assignees: Kabushiki Kaisha Toshiba, Toshiba TEC Kabushiki KaishaInventors: Yoshiaki Sugizaki, Hiroyuki Taki, Hidetoshi Yokochi, Isao Yahata, Takahiro Kawaguchi, Ken Iguchi, Kikuo Mizutani, Hiroyuki Tsuchihashi, Chiaki Iizuka, Toshiaki Oshiro, Hiroyuki Hazu, Yoichi Yamaguchi, Hiroyuki Sugiyama, Yuichi Saito
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Patent number: 9041753Abstract: A sheet discharging device includes a first conveying path that guides a sheet to be conveyed. A second conveying path branches from the first conveying path. A sorting section sorts a sheet being conveyed on the first conveying path into either a downstream side of the branch point or the second conveying path. A first discharge tray is placed at a position downstream of the first conveying path and receives a sheet discharged from the first conveying path at a first sheet loading surface. A second discharge tray is placed at a position downstream of the second conveying path and below the first discharge tray, and receives a sheet discharged from the second conveying path at a second sheet loading surface whose distance to the first sheet loading surface increases toward a downstream side thereof in a sheet discharging direction.Type: GrantFiled: March 24, 2014Date of Patent: May 26, 2015Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHAInventors: Isao Yahata, Kikuo Mizutani, Takahiro Kawaguchi, Yoshiaki Sugizaki, Ken Iguchi, Hiroyuki Taki, Hiroyuki Tsuchihashi, Chiaki Iizuka, Hidetoshi Yokochi, Toshiaki Oshiro, Hiroyuki Hazu, Yoichi Yamaguchi, Hiroyuki Sugiyama, Yuichi Saito
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Patent number: 9039009Abstract: 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: GrantFiled: December 16, 2013Date of Patent: May 26, 2015Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHAInventors: 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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Patent number: 8943636Abstract: 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: GrantFiled: September 4, 2012Date of Patent: February 3, 2015Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: 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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Patent number: 8922609Abstract: 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: GrantFiled: August 21, 2013Date of Patent: December 30, 2014Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: 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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Patent number: 8899855Abstract: According to one embodiment, a erasing apparatus includes: a paper feeding section configured to feed a recording medium on which a erasable image is recorded to a conveying path; a conveying section configured to convey the recording medium along the conveying path; a erasing section configured to erase a color of the image on the recording medium; a sensor configured to detect the recording medium conveyed through the erasing section by the conveying section; and a control section configured to perform, if the sensor detects occurrence of a jam of the recording medium, control to convey the recording medium present in the conveying path.Type: GrantFiled: December 2, 2011Date of Patent: December 2, 2014Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Hiroyuki Taki, Ken Iguchi, Isao Yahata, Takahiro Kawaguchi, Hiroyuki Taguchi, Hiroyuki Tsuchihashi, Yoshiaki Sugizaki, Kikuo Mizutani, Chiaki Iizuka, Hidetoshi Yokochi, Toshiaki Oshiro, Hiroyuki Hazu, Yoici Yamaguchi, Hiroyuki Sugiyama, Yuichi Saito, Jun Ishii
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Patent number: 8890912Abstract: 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: GrantFiled: February 20, 2012Date of Patent: November 18, 2014Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Hiroyuki Taki, Hiroyuki Tsuchihasi, Takahiro Kawaguchi, Isao Yahata, Yoshiaki Sugizaki, Kikuo Mizutani, Ken Iguchi, Chiaki Iizuka, Hidetoshi Yokochi, Toshiaki Oshiro, Hiroyuki Hazu, Yoichi Yamaguchi, Hiroyuki Sugiyama, Yuichi Saito
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Patent number: 8890913Abstract: 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: GrantFiled: August 22, 2013Date of Patent: November 18, 2014Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: 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
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Patent number: 8878884Abstract: 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: GrantFiled: May 30, 2012Date of Patent: November 4, 2014Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: 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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Patent number: 8844927Abstract: 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: GrantFiled: June 27, 2012Date of Patent: September 30, 2014Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: 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: 20140203492Abstract: A sheet discharging device includes a first conveying path that guides a sheet to be conveyed. A second conveying path branches from the first conveying path. A sorting section sorts a sheet being conveyed on the first conveying path into either a downstream side of the branch point or the second conveying path. A first discharge tray is placed at a position downstream of the first conveying path and receives a sheet discharged from the first conveying path at a first sheet loading surface. A second discharge tray is placed at a position downstream of the second conveying path and below the first discharge tray, and receives a sheet discharged from the second conveying path at a second sheet loading surface whose distance to the first sheet loading surface increases toward a downstream side thereof in a sheet discharging direction.Type: ApplicationFiled: March 24, 2014Publication date: July 24, 2014Applicants: TOSHIBA TEC KABUSHIKI KAISHA, KABUSHIKI KAISHA TOSHIBAInventors: Isao YAHATA, Kikuo MIZUTANI, Takahiro KAWAGUCHI, Yoshiaki SUGIZAKI, Ken IGUCHI, Hiroyuki TAKI, Hiroyuki TSUCHIHASHI, Chiaki IIZUKA, Hidetoshi YOKOCHI, Toshiaki OSHIRO, Hiroyuki HAZU, Yoichi YAMAGUCHI, Hiroyuki SUGIYAMA, Yuichi SAITO
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Patent number: 8777220Abstract: 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: GrantFiled: June 26, 2012Date of Patent: July 15, 2014Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: 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: 20140147136Abstract: 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: December 16, 2013Publication date: May 29, 2014Applicants: 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 Tsuchihasi, Hiroyuki Hazu, Yoichi Yamaguchi, Hiroyuki Sugiyama, Yuichi Saito, Jun Ishii
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Patent number: 8733757Abstract: 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: GrantFiled: June 21, 2012Date of Patent: May 27, 2014Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Toshiaki Oshiro, Isao Yahata, Takahiro Kawaguchi, Yoshiaki Sugizaki, Kikuo Mizutani, Hiroyuki Taki, Hiroyuki Tsuchihashi, Chiaki Iizuka, Hidetoshi Yokochi, Ken Iguchi, Hiroyuki Hazu, Yoichi Yamaguchi, Hiroyuki Sugiyama, Yuichi Saito
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Patent number: 8717396Abstract: According to an embodiment, a sheet discharging device includes: a first conveying path configured to guide a sheet to be conveyed; a second conveying path branched from the first conveying path at a branch point of the first conveying path; a sorting section configured to sort a sheet being conveyed on the first conveying path into either a downstream side of the branch point on the first conveying path or the second conveying path; a first discharge tray configured to receive a sheet discharged from the first conveying path at a first sheet loading surface; and a second discharge tray placed below the first discharge tray and configured to receive a sheet discharged from the second conveying path at a second sheet loading surface whose distance to the first sheet loading surface increases toward a downstream side thereof in a sheet discharging direction.Type: GrantFiled: May 31, 2012Date of Patent: May 6, 2014Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Isao Yahata, Kikuo Mizutani, Takahiro Kawaguchi, Yoshiaki Sugizaki, Ken Iguchi, Hiroyuki Taki, Hiroyuki Tsuchihashi, Chiaki Iizuka, Hidetoshi Yokochi, Toshiaki Oshiro, Hiroyuki Hazu, Yoichi Yamaguchi, Hiroyuki Sugiyama, Yuichi Saito
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Patent number: 8670012Abstract: 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: GrantFiled: June 20, 2012Date of Patent: March 11, 2014Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: 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: 20140045685Abstract: 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: August 21, 2013Publication date: February 13, 2014Applicants: 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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Patent number: 8636282Abstract: 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: GrantFiled: June 15, 2012Date of Patent: January 28, 2014Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: 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: 20130342624Abstract: 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: ApplicationFiled: August 22, 2013Publication date: December 26, 2013Applicants: Toshiba Tec Kabushiki Kaisha, Kabushiki Kaisha ToshibaInventors: 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