Patents by Inventor TOSHIKI FUKUNISHI
TOSHIKI FUKUNISHI 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: 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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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: 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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Publication number: 20200128148Abstract: A document reading device includes red, green, and blue photoelectric transducers; a reader that reads a color image of a document with the photoelectric transducers; and a converter that converts the read color image into a grayscale image. The converter determines the maximum tone value MAX(RGB) among the red, green, and blue tone values of the RGB signal (RGB) of the pixel of the red, green, and blue colors to be a grayscale value of the pixel.Type: ApplicationFiled: October 14, 2019Publication date: April 23, 2020Inventors: SHOHICHI FUKUTOME, KENJI NAKANISHI, YASUHIRO SUTOH, HISASHI YAMANAKA, TOSHIKI FUKUNISHI
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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