Patents by Inventor Hironori Ogasawara
Hironori Ogasawara 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: 11945673Abstract: A document feeder includes a document placing tray on which a document is placed; a document discharging tray on which a document discharged from a document discharging port in a discharging direction is stacked; and a light source that radiates light to the document discharging tray. The document discharging tray is disposed below the document placing tray. The document discharging tray has a protruding portion protruding upward from the surrounding area. The light source is disposed within a region having a width that is the same as a document having a maximum size in the width direction.Type: GrantFiled: February 15, 2023Date of Patent: April 2, 2024Assignee: SHARP KABUSHIKI KAISHAInventors: Shohichi Fukutome, Kenji Kuroda, Hironori Ogasawara, Hisashi Yamanaka, Toshiki Fukunishi
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Patent number: 11760594Abstract: A document feeder includes a device body, and an opening and closing cover which is provided to be openable and closable with respect to the device body, and including a paper feed roller and a paper feed roller drive shaft on the device body. The document feeder includes a guide member, which is mounted rotatably to the paper feed roller drive shaft on an outer side of the paper feed roller in a roller axis direction thereof. The guide member guides a document being conveyed, in a state where the opening and closing cover is closed, by being opposed to the paper feed roller drive shaft in a predetermined orientation.Type: GrantFiled: August 27, 2021Date of Patent: September 19, 2023Assignee: SHARP KABUSHIKI KAISHAInventor: Hironori Ogasawara
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Patent number: 11702305Abstract: A sheet feeding device includes a pickup roller, a lifting/lowering mechanism, and a driver device. The lifting/lowering mechanism includes a restricting member that releasably restricts the pickup roller from being lowered from a lifted position of the pickup roller at the lifted position. In the sheet feeding device, the driver device drives the lifting/lowering mechanism so that the pickup roller is lowered from the lifted position of the pickup roller, and a drive suspend operation is performed in which the driving of the lifting/lowering mechanism by driver device is suspended after a predetermined time during which the pickup roller does not contact a sheet loading tray or a sheet on the sheet loading tray elapses from a time point when the pickup roller is released from being restricted by the restricting member at the lifted position.Type: GrantFiled: December 29, 2020Date of Patent: July 18, 2023Assignee: SHARP KABUSHIKI KAISHAInventors: Kenji Kuroda, Hironori Ogasawara, Yasumasa Morimoto, Toshiki Fukunishi
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Publication number: 20230192433Abstract: A document feeder includes a document placing tray on which a document is placed; a document discharging tray on which a document discharged from a document discharging port in a discharging direction is stacked; and a light source that radiates light to the document discharging tray. The document discharging tray is disposed below the document placing tray. The document discharging tray has a protruding portion protruding upward from the surrounding area. The light source is disposed within a region having a width that is the same as a document having a maximum size in the width direction.Type: ApplicationFiled: February 15, 2023Publication date: June 22, 2023Inventors: SHOHICHI FUKUTOME, KENJI KURODA, HIRONORI OGASAWARA, HISASHI YAMANAKA, TOSHIKI FUKUNISHI
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Patent number: 11608241Abstract: A document feeder includes a document placing tray on which a document is placed; a document discharging tray on which a document discharged from a document discharging port in a discharging direction is stacked; and a light source that radiates light to the document discharging tray. The document discharging tray is disposed below the document placing tray. The document discharging tray has a protruding portion protruding upward from the surrounding area. The light source is disposed within a region having a width that is the same as a document having a maximum size in the width direction.Type: GrantFiled: March 30, 2022Date of Patent: March 21, 2023Assignee: SHARP KABUSHIKI KAISHAInventors: Shohichi Fukutome, Kenji Kuroda, Hironori Ogasawara, Hisashi Yamanaka, Toshiki Fukunishi
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Patent number: 11509786Abstract: A document feeder includes an apparatus body to which a document feed unit is attached, a sheet feed tray that moves up and down toward the document feed unit, an open/close cover attached openably and closably to the apparatus body and opens the document transport path and the document feed unit when opened, and a unit pressing arm attached to the open/close cover. When the open/close cover is closed, the unit pressing arm presses the document feed unit toward the sheet feed tray.Type: GrantFiled: June 18, 2021Date of Patent: November 22, 2022Assignee: SHARP KABUSHIKI KAISHAInventors: Yasumasa Morimoto, Hironori Ogasawara
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Publication number: 20220219933Abstract: A document feeder includes a document placing tray on which a document is placed; a document discharging tray on which a document discharged from a document discharging port in a discharging direction is stacked; and a light source that radiates light to the document discharging tray. The document discharging tray is disposed below the document placing tray. The document discharging tray has a protruding portion protruding upward from the surrounding area. The light source is disposed within a region having a width that is the same as a document having a maximum size in the width direction.Type: ApplicationFiled: March 30, 2022Publication date: July 14, 2022Inventors: SHOHICHI FUKUTOME, KENJI KURODA, HIRONORI OGASAWARA, HISASHI YAMANAKA, TOSHIKI FUKUNISHI
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Patent number: 11319180Abstract: A document feeder includes a document placing tray on which a document is placed; a document discharging tray on which a document discharged from a document discharging port in a discharging direction is stacked; and a light source that radiates light to the document discharging tray. The document discharging tray is disposed below the document placing tray. The document discharging tray has a protruding portion protruding upward from the surrounding area. The light source is disposed within a region having a width that is the same as a document having a maximum size in the width direction.Type: GrantFiled: October 14, 2019Date of Patent: May 3, 2022Assignee: SHARP KABUSHIKI KAISHAInventors: Shohichi Fukutome, Kenji Kuroda, Hironori Ogasawara, Hisashi Yamanaka, Toshiki Fukunishi
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Publication number: 20220063940Abstract: A document feeder includes a device body, and an opening and closing cover which is provided to be openable and closable with respect to the device body, and including a paper feed roller and a paper feed roller drive shaft on the device body. The document feeder includes a guide member, which is mounted rotatably to the paper feed roller drive shaft on an outer side of the paper feed roller in a roller axis direction thereof. The guide member guides a document being conveyed, in a state where the opening and closing cover is closed, by being opposed to the paper feed roller drive shaft in a predetermined orientation.Type: ApplicationFiled: August 27, 2021Publication date: March 3, 2022Inventor: HIRONORI OGASAWARA
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Publication number: 20220021778Abstract: A document feeder includes an apparatus body to which a document feed unit is attached, a sheet feed tray that moves up and down toward the document feed unit, an open/close cover attached openably and closably to the apparatus body and opens the document transport path and the document feed unit when opened, and a unit pressing arm attached to the open/close cover. When the open/close cover is closed, the unit pressing arm presses the document feed unit toward the sheet feed tray.Type: ApplicationFiled: June 18, 2021Publication date: January 20, 2022Inventors: YASUMASA MORIMOTO, HIRONORI OGASAWARA
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Publication number: 20210221633Abstract: A sheet feeding device includes a pickup roller, a lifting/lowering mechanism, and a driver device. The lifting/lowering mechanism includes a restricting member that releasably restricts the pickup roller from being lowered from a lifted position of the pickup roller at the lifted position. In the sheet feeding device, the driver device drives the lifting/lowering mechanism so that the pickup roller is lowered from the lifted position of the pickup roller, and a drive suspend operation is performed in which the driving of the lifting/lowering mechanism by driver device is suspended after a predetermined time during which the pickup roller does not contact a sheet loading tray or a sheet on the sheet loading tray elapses from a time point when the pickup roller is released from being restricted by the restricting member at the lifted position.Type: ApplicationFiled: December 29, 2020Publication date: July 22, 2021Inventors: KENJI KURODA, HIRONORI OGASAWARA, YASUMASA MORIMOTO, TOSHIKI FUKUNISHI
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Patent number: 10893159Abstract: A document feeder includes an input tray (part of a document placing portion) on which a document is placed, an output tray on which the document output from a document output port in an output direction is stacked, and a substrate including a light source that emits light to the output tray. The output tray is disposed below the input tray. The substrate is fixed to the document placing portion at an oblique angle relative to a horizontal reference of the document feeder such that the optical axis of the light source extends toward the document output port.Type: GrantFiled: October 15, 2019Date of Patent: January 12, 2021Assignee: SHARP KABUSHIKI KAISHAInventors: Kenji Kuroda, Shohichi Fukutome, Hironori Ogasawara, Hisashi Yamanaka, Toshiki Fukunishi
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Patent number: 10815084Abstract: A sheet feed apparatus includes a sheet separation unit, and the sheet separation unit includes a separation roller that is provided so as to be brought into contact to an outer peripheral surface of a sheet feed roller, and separates a sheet fed by the sheet feed roller into one. The sheet separation unit comprises a hook for rotatably supporting the sheet separation unit in a main body casing of the sheet feed apparatus and an engaging claw that makes the sheet separation unit engage with the main body casing. Therefore, the sheet separation unit is held in the main body casing detachably.Type: GrantFiled: September 21, 2019Date of Patent: October 27, 2020Assignee: Sharp Kabushiki KaishaInventors: Yasuhiro Suto, Yasumasa Morimoto, Hironori Ogasawara, Toshiki Ohgita
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Publication number: 20200128138Abstract: A document feeder includes an input tray (part of a document placing portion) on which a document is placed, an output tray on which the document output from a document output port in an output direction is stacked, and a substrate including a light source that emits light to the output tray. The output tray is disposed below the input tray. The substrate is fixed to the document placing portion at an oblique angle relative to a horizontal reference of the document feeder such that the optical axis of the light source extends toward the document output port.Type: ApplicationFiled: October 15, 2019Publication date: April 23, 2020Inventors: KENJI KURODA, SHOHICHI FUKUTOME, HIRONORI OGASAWARA, HISASHI YAMANAKA, TOSHIKI FUKUNISHI
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Publication number: 20200122944Abstract: A document feeder includes a document placing tray on which a document is placed; a document discharging tray on which a document discharged from a document discharging port in a discharging direction is stacked; and a light source that radiates light to the document discharging tray. The document discharging tray is disposed below the document placing tray. The document discharging tray has a protruding portion protruding upward from the surrounding area. The light source is disposed within a region having a width that is the same as a document having a maximum size in the width direction.Type: ApplicationFiled: October 14, 2019Publication date: April 23, 2020Inventors: SHOHICHI FUKUTOME, KENJI KURODA, HIRONORI OGASAWARA, HISASHI YAMANAKA, TOSHIKI FUKUNISHI
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Publication number: 20200017323Abstract: A sheet feed apparatus includes a sheet separation unit, and the sheet separation unit includes a separation roller that is provided so as to be brought into contact to an outer peripheral surface of a sheet feed roller, and separates a sheet fed by the sheet feed roller into one. The sheet separation unit comprises a hook for rotatably supporting the sheet separation unit in a main body casing of the sheet feed apparatus and an engaging claw that makes the sheet separation unit engage with the main body casing. Therefore, the sheet separation unit is held in the main body casing detachably.Type: ApplicationFiled: September 21, 2019Publication date: January 16, 2020Inventors: Yasuhiro SUTO, Yasumasa MORIMOTO, Hironori OGASAWARA, Toshiki OHGITA
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Patent number: 10450155Abstract: A sheet feed apparatus includes a sheet separation unit, and the sheet separation unit includes a separation roller that is provided so as to be brought into contact to an outer peripheral surface of a sheet feed roller, and separates a sheet fed by the sheet feed roller into one. The sheet separation unit comprises a hook for rotatably supporting the sheet separation unit in a main body casing of the sheet feed apparatus and an engaging claw that makes the sheet separation unit engage with the main body casing. Therefore, the sheet separation unit is held in the main body casing detachably.Type: GrantFiled: June 1, 2018Date of Patent: October 22, 2019Assignee: Sharp Kabushiki KaishaInventors: Yasuhiro Suto, Yasumasa Morimoto, Hironori Ogasawara, Toshiki Ohgita
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Publication number: 20180273318Abstract: A sheet feed apparatus includes a sheet separation unit, and the sheet separation unit includes a separation roller that is provided so as to be brought into contact to an outer peripheral surface of a sheet feed roller, and separates a sheet fed by the sheet feed roller into one. The sheet separation unit comprises a hook for rotatably supporting the sheet separation unit in a main body casing of the sheet feed apparatus and an engaging claw that makes the sheet separation unit engage with the main body casing. Therefore, the sheet separation unit is held in the main body casing detachably.Type: ApplicationFiled: June 1, 2018Publication date: September 27, 2018Inventors: Yasuhiro SUTO, Yasumasa MORIMOTO, Hironori OGASAWARA, Toshiki OHGITA
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Patent number: 10011445Abstract: A sheet feed apparatus includes a sheet separation unit, and the sheet separation unit includes a separation roller that is provided so as to be brought into contact to an outer peripheral surface of a sheet feed roller, and separates a sheet fed by the sheet feed roller into one. The sheet separation unit comprises a hook for rotatably supporting the sheet separation unit in a main body casing of the sheet feed apparatus and an engaging claw that makes the sheet separation unit engage with the main body casing. Therefore, the sheet separation unit is held in the main body casing detachably.Type: GrantFiled: October 11, 2016Date of Patent: July 3, 2018Assignee: SHARP KABUSHIKI KAISHAInventors: Yasuhiro Suto, Yasumasa Morimoto, Hironori Ogasawara, Toshiki Ohgita
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Patent number: 9969582Abstract: A sheet conveyance device includes a pair of separable contact rollers configured to convey a sheet, a contact/separation mechanism configured to support the pair of separable contact rollers in such a manner that the pair of separable contact rollers are able to come into separable contact with each other, and a solenoid configured to operate the contact/separation mechanism. The solenoid is driven so that the contact/separation mechanism causes the pair of separable contact rollers to come into pressure contact with each other, and driving of the solenoid is cancelled so that the contact/separation mechanism causes the pair of separable contact rollers to be separated from each other. Pulse width modulation duty control is performed on the solenoid while the pair of separable contact rollers are in pressure contact with each other when a plurality of the sheets are conveyed one by one at an interval.Type: GrantFiled: October 13, 2016Date of Patent: May 15, 2018Assignee: Sharp Kabushiki KaishaInventors: Yasumasa Morimoto, Hironori Ogasawara