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公开(公告)号：US20220094815A1
公开(公告)日：2022-03-24
申请号：US17458860
申请日：2021-08-27
申请人： Fumiyuki HEISHI , Hiroshi KUBO , Shinya KITAOKA , Satoshi SAITO , Yoshito SUZUKI , Kimiharu YANAGISAWA , Atsushi KANAYA
发明人： Fumiyuki HEISHI , Hiroshi KUBO , Shinya KITAOKA , Satoshi SAITO , Yoshito SUZUKI , Kimiharu YANAGISAWA , Atsushi KANAYA
摘要： An image reading device and an image forming apparatus. The image reading device includes an image reader to read an image of a document, and a color reference component arranged to face the image reader. In the image reading device, the image reader reads the color reference component at a prescribed timing to obtain color reference image data, and correction data generating processes are executed based on the obtained color reference image data to generate correction data used to correct data of the image read by the image reader. In the image reading device, wherein the color reference component is moved relative to the image reader in a direction orthogonal to a direction toward and away from the image reader. The image forming apparatus includes the image reading device, and an image is formed on a recording material based on data of the image read by the image reading device.
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公开(公告)号：US20240255881A1
公开(公告)日：2024-08-01
申请号：US18416398
申请日：2024-01-18
申请人： Kimiharu YANAGISAWA , Shinya TAKAI , Ryohei MORISAKI , Takehisa SHIMAZU , Hiroshi KUBO , Shinya KITAOKA
发明人： Kimiharu YANAGISAWA , Shinya TAKAI , Ryohei MORISAKI , Takehisa SHIMAZU , Hiroshi KUBO , Shinya KITAOKA
CPC分类号： G03G15/6529 , H04N1/00588
摘要： A drive transmission device includes a plurality of drive transmission units and a heat-resistant member. The drive transmission units include a plurality of drive transmission mechanisms to transmit drive force from a plurality of drive sources to a driven member. At least two drive sources of the drive sources are included in at least two drive transmission units of the drive transmission units. The at least two drive sources are disposed at substantially a same height and on a same side with respect to at least two drive transmission mechanisms of the drive transmission mechanisms that correspond to the at least two drive sources. The heat-resistant member is disposed at a position higher than the at least two drive sources in a use state. The at least two drive transmission mechanisms are shielded from the at least two drive sources by the heat-resistant member at the position.
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3.发明申请公开(公告)号：US20200252513A1
公开(公告)日：2020-08-06
申请号：US16776521
申请日：2020-01-30
申请人： Yuuki NAKADA , Hajime TSUKAHARA , Hiroki SHIRADO , Ayumu HASHIMOTO , Tomohiko ONO , Tatsuya OZAKI , Hiroshi KUBO , Yoshiaki NAGAO , Kimiharu YANAGISAWA , Masahiro ITOH
发明人： Yuuki NAKADA , Hajime TSUKAHARA , Hiroki SHIRADO , Ayumu HASHIMOTO , Tomohiko ONO , Tatsuya OZAKI , Hiroshi KUBO , Yoshiaki NAGAO , Kimiharu YANAGISAWA , Masahiro ITOH
IPC分类号： H04N1/00
摘要： An inclination detecting device includes processing circuitry. The processing circuitry is configured to detect, in image information that is an image of an object imaged by an imaging device at an imaging position where a background member forms a background, a first boundary between the background member and a shadow of the object at detection positions in at least one of main-scanning and sub-scanning directions on an outline of the object; detect a second boundary between the object and the shadow of the object at detection positions in at least one of the main-scanning and sub-scanning directions on the outline of the object in the image information; detect a boundary group including detection results of the second boundary at the detection positions; and detect an inclination of the object in the image information from detection results of the first boundary, the second boundary, and the boundary group.
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4.发明申请公开(公告)号：US20200336615A1
公开(公告)日：2020-10-22
申请号：US16841708
申请日：2020-04-07
申请人： Tomohiko ONO , Hajime TSUKAHARA , Hiroki SHIRADO , Ayumu HASHIMOTO , Yuuki NAKADA , Tatsuya OZAKI , Hiroshi KUBO , Yoshiaki NAGAO , Kimiharu YANAGISAWA , Masahiro ITOH
发明人： Tomohiko ONO , Hajime TSUKAHARA , Hiroki SHIRADO , Ayumu HASHIMOTO , Yuuki NAKADA , Tatsuya OZAKI , Hiroshi KUBO , Yoshiaki NAGAO , Kimiharu YANAGISAWA , Masahiro ITOH
摘要： An edge detecting device includes processing circuitry. The processing circuitry is configured to acquire first color information and second color information in an image including a document region and a background region outside the document region. The first color information is color information of the background region and the second color information is color information of the document region. The processing circuitry is configured to detect a boundary between the background region and the document region from a change in color information between the first color information and the second color information.
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5.发明申请公开(公告)号：US20200244837A1
公开(公告)日：2020-07-30
申请号：US16775287
申请日：2020-01-29
申请人： Hajime TSUKAHARA , Hiroki SHIRADO , Ayumu HASHIMOTO , Yuuki NAKADA , Tomohiko ONO , Tatsuya OZAKI , Hiroshi KUBO , Yoshiaki NAGAO , Kimiharu YANAGISAWA , Masahiro ITOH
发明人： Hajime TSUKAHARA , Hiroki SHIRADO , Ayumu HASHIMOTO , Yuuki NAKADA , Tomohiko ONO , Tatsuya OZAKI , Hiroshi KUBO , Yoshiaki NAGAO , Kimiharu YANAGISAWA , Masahiro ITOH
摘要： An inclination detecting device includes processing circuitry. The processing circuitry is configured to detect, in image information that is an image of an object imaged by an imaging device at an imaging position where a background member forms a background, a first boundary between the background member and a shadow of the object; detect a second boundary between the object and the shadow of the object in the image information; and detect an inclination of the object in the image information from the first boundary and the second boundary detected by the processing circuitry.
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