公开(公告)号：US20130135484A1

公开(公告)日：2013-05-30

申请号：US13687520

申请日：2012-11-28

申请人： Nobuyuki SATOH ,  Yasuyuki Suzuki ,  Masato Kobayashi ,  Suguru Yokozawa ,  Tatsuhiko Okada ,  Mamoru Yorimoto ,  Daisaku Horikawa ,  Yuichi Sakurada

发明人： Nobuyuki SATOH ,  Yasuyuki Suzuki ,  Masato Kobayashi ,  Suguru Yokozawa ,  Tatsuhiko Okada ,  Mamoru Yorimoto ,  Daisaku Horikawa ,  Yuichi Sakurada

IPC分类号： H04N1/00

CPC分类号： H04N1/6033 ,  G01J3/0208 ,  G01J3/0237 ,  G01J3/06 ,  G01J3/46 ,  G01J3/52 ,  G01J3/524 ,  G06K15/027 ,  G06K15/102 ,  G06K2215/0094 ,  G06K2215/101 ,  H04N1/00005 ,  H04N1/00015 ,  H04N1/00023 ,  H04N1/00034 ,  H04N1/00045 ,  H04N1/00047 ,  H04N1/00068 ,  H04N1/00087 ,  H04N1/00278 ,  H04N1/00323 ,  H04N1/0282 ,  H04N1/034 ,  H04N1/41 ,  H04N1/50 ,  H04N1/6008 ,  H04N1/6044 ,  H04N5/2253 ,  H04N5/2254 ,  H04N2201/0082

摘要： An image capturing unit includes a sensor unit that image-captures a predetermined area including a subject; and a reference chart unit that is arranged in the predetermined area and captured with the subject by the sensor unit.

摘要翻译： 图像拍摄单元包括：图像拍摄包括被摄体的预定区域的传感器单元; 以及参考图表单元，其布置在预定区域中并由传感器单元与被摄体一起捕获。

公开(公告)号：US09516179B2

公开(公告)日：2016-12-06

申请号：US13687520

申请日：2012-11-28

申请人： Nobuyuki Satoh ,  Yasuyuki Suzuki ,  Masato Kobayashi ,  Suguru Yokozawa ,  Tatsuhiko Okada ,  Mamoru Yorimoto ,  Daisaku Horikawa ,  Yuichi Sakurada

发明人： Nobuyuki Satoh ,  Yasuyuki Suzuki ,  Masato Kobayashi ,  Suguru Yokozawa ,  Tatsuhiko Okada ,  Mamoru Yorimoto ,  Daisaku Horikawa ,  Yuichi Sakurada

IPC分类号： H04N1/00 ,  H04N1/60 ,  H04N1/028 ,  G01J3/46 ,  G01J3/02 ,  G01J3/06 ,  G01J3/52 ,  H04N1/41 ,  H04N1/50 ,  H04N1/034

CPC分类号： H04N1/6033 ,  G01J3/0208 ,  G01J3/0237 ,  G01J3/06 ,  G01J3/46 ,  G01J3/52 ,  G01J3/524 ,  G06K15/027 ,  G06K15/102 ,  G06K2215/0094 ,  G06K2215/101 ,  H04N1/00005 ,  H04N1/00015 ,  H04N1/00023 ,  H04N1/00034 ,  H04N1/00045 ,  H04N1/00047 ,  H04N1/00068 ,  H04N1/00087 ,  H04N1/00278 ,  H04N1/00323 ,  H04N1/0282 ,  H04N1/034 ,  H04N1/41 ,  H04N1/50 ,  H04N1/6008 ,  H04N1/6044 ,  H04N5/2253 ,  H04N5/2254 ,  H04N2201/0082

摘要： An image capturing unit includes a sensor unit that image-captures a predetermined area including a subject; and a reference chart unit that is arranged in the predetermined area and captured with the subject by the sensor unit.

摘要翻译： 图像拍摄单元包括：图像拍摄包括被摄体的预定区域的传感器单元; 以及参考图表单元，其布置在预定区域中并由传感器单元与被摄体一起捕获。

公开(公告)号：US20130242319A1

公开(公告)日：2013-09-19

申请号：US13835823

申请日：2013-03-15

申请人： Yasuyuki SUZUKI ,  Nobuyuki Satoh ,  Mamoru Yorimoto ,  Suguru Yokozawa ,  Yuichi Sakurada ,  Masato Kobayashi ,  Tatsuhiko Okada ,  Tomokazu Kanzawa ,  Daisaku Horikawa ,  Hiroshi Matsumoto ,  Ryo Honda ,  Makoto Moriwaki

发明人： Yasuyuki SUZUKI ,  Nobuyuki Satoh ,  Mamoru Yorimoto ,  Suguru Yokozawa ,  Yuichi Sakurada ,  Masato Kobayashi ,  Tatsuhiko Okada ,  Tomokazu Kanzawa ,  Daisaku Horikawa ,  Hiroshi Matsumoto ,  Ryo Honda ,  Makoto Moriwaki

IPC分类号： G06K15/02

CPC分类号： G06K15/02 ,  H04N1/4076

摘要： An imaging unit includes a frame having an opening; a sensor unit that captures, via the opening, a subject located outside the frame; a reference chart unit that is arranged on the frame and is captured by the sensor unit together with the subject; and a cover member that covers the opening.

摘要翻译： 成像单元包括具有开口的框架; 传感器单元，其经由所述开口捕获位于所述框架外部的对象; 参考图表单元，其布置在所述框架上并且与所述对象一起被所述传感器单元捕获; 以及覆盖所述开口的盖构件。

公开(公告)号：US10919293B2

公开(公告)日：2021-02-16

申请号：US16526132

申请日：2019-07-30

申请人： Kohhei Yamaguchi ,  Nobuyuki Satoh ,  Suguru Yokozawa

发明人： Kohhei Yamaguchi ,  Nobuyuki Satoh ,  Suguru Yokozawa

IPC分类号： B41J2/045 ,  B41J2/15 ,  B41J2/165

摘要： A liquid discharge apparatus includes a liquid discharge head, a scanning device, a conveyance device, a reading device, control circuitry, and a detecting device. The liquid discharge head is configured to discharge liquid to a target object. The scanning device is configured to move the liquid discharge head in a main scanning direction. The conveyance device is configured to convey the target object in a direction perpendicular to the main scanning direction. The reading device is disposed at a predetermined position with respect to the liquid discharge head. The control circuitry is configured to change a detection pattern image for detecting a defective nozzle, in accordance with a feed amount of the target object in the sub-scanning direction. The detecting device is configured to identify a nozzle corresponding to a defective portion of the detection pattern image read by the reading device.

公开(公告)号：US20180147835A1

公开(公告)日：2018-05-31

申请号：US15808820

申请日：2017-11-09

申请人： Kahei Nakamura ,  Masaya Kawarada ,  Kohta Aoyagi ,  Suguru Yokozawa ,  Nobuyuki Satoh

发明人： Kahei Nakamura ,  Masaya Kawarada ,  Kohta Aoyagi ,  Suguru Yokozawa ,  Nobuyuki Satoh

IPC分类号： B41J2/045 ,  B41J29/393

CPC分类号： B41J2/04505 ,  B41J2/04586 ,  B41J2/2135 ,  B41J11/46 ,  B41J29/13 ,  B41J29/393

摘要： An image forming apparatus includes an image forming device; an imaging device; and at least one processor including a pattern forming unit to cause a recording head to form a pair of first marks, with first and second nozzles disposed at a first distance from each other in a direction of conveyance of a recording medium, while the recording head moves in a first direction and cause the recording head to form a second mark while the recording head moves in a second direction, a position detector to detect positions of the first and second marks in a captured image, a ratio calculator to calculate a ratio between a distance between the first marks in the captured image and a deviation of the second mark in the captured image, and distance calculator to calculate a distance of the deviation based on the first distance and the ratio.

公开(公告)号：US20180141359A1

公开(公告)日：2018-05-24

申请号：US15818671

申请日：2017-11-20

申请人： Masaya Kawarada ,  Nobuyuki Satoh ,  Suguru Yokozawa ,  Kohta Aoyagi ,  Kenta Sasaki

发明人： Masaya Kawarada ,  Nobuyuki Satoh ,  Suguru Yokozawa ,  Kohta Aoyagi ,  Kenta Sasaki

IPC分类号： B41J29/393 ,  B41J2/045

CPC分类号： B41J29/393 ,  B41J2/04505 ,  B41J2/0458 ,  B41J2/04581 ,  B41J2/2135 ,  B41J11/46 ,  B41J19/145 ,  B41J29/13 ,  B41J2029/3935

摘要： An imaging device includes an imaging unit to obtain a captured image of a test pattern and a reference mark to locate the test pattern and at least one processor. The test pattern includes a pair of first marks and a second mark. The processor includes a position detector configured to detect the reference mark in the captured image and locate the pair of first marks and the second mark in the captured image, and a ratio calculator configured to calculate one of a first ratio between a distance between the pair of first marks in the captured image and a deviation of the second mark in the captured image, and a second ratio between the distance between the pair of first marks in the captured image and a distance from one of the pair of first marks to the second mark in the captured image.

公开(公告)号：US10889127B2

公开(公告)日：2021-01-12

申请号：US16294510

申请日：2019-03-06

申请人： Suguru Yokozawa ,  Takayuki Ito ,  Nobuyuki Satoh ,  Kohtaroh Ikegami ,  Kenta Sasaki

发明人： Suguru Yokozawa ,  Takayuki Ito ,  Nobuyuki Satoh ,  Kohtaroh Ikegami ,  Kenta Sasaki

IPC分类号： B41J29/38 ,  B41J2/21 ,  G06T7/00 ,  B41J29/393 ,  B41J2/15 ,  B41J2/165

摘要： A liquid discharge apparatus includes a liquid discharge head having at least one nozzle array including a plurality of nozzles lined in a nozzle array direction; a two-dimensional image sensor to capture an image formed by the liquid discharge head; and circuitry. The circuitry is configured to divide the nozzles into a plurality of nozzle units; form a pattern including a plurality of unit patterns with liquid discharged from the nozzle units, respectively; and detect a defective nozzle based on a captured image of each of the unit patterns. The unit patterns are arranged in a staggered manner. Each unit pattern is smaller in size than an image capture range of the two-dimensional image sensor. Each unit pattern includes a number of columns of lines extending in a direction perpendicular to the nozzle array direction, and the number of columns is not smaller than twice the number of nozzle arrays.

公开(公告)号：US20180141329A1

公开(公告)日：2018-05-24

申请号：US15808813

申请日：2017-11-09

申请人： Kohta Aoyagi ,  Suguru Yokozawa ,  Masaya Kawarada ,  Nobuyuki Satoh

发明人： Kohta Aoyagi ,  Suguru Yokozawa ,  Masaya Kawarada ,  Nobuyuki Satoh

IPC分类号： B41J2/045 ,  B41J29/393

CPC分类号： B41J2/04505 ,  B41J2/04586 ,  B41J2/2135 ,  B41J11/46 ,  B41J19/145 ,  B41J29/02 ,  B41J29/13 ,  B41J29/393

摘要： An image forming apparatus includes a conveyor to convey a recording medium; an image forming device including a recording head to form a test pattern including a first mark and a pair of second marks; an imaging device; and a processor. The processor includes a pattern forming unit to cause the image forming device to form one of the first and second marks and form the other after the conveyor conveys the recording medium by a predetermined conveyance amount, a position detector to detect positions of the first and second marks in the captured image, a ratio calculator to calculate a ratio between a distance between the second marks and deviation of the first mark in the captured image, and a distance calculator to calculate an actual distance of the deviation based on a theoretical distance between the second marks and the ratio.

公开(公告)号：US10207495B2

公开(公告)日：2019-02-19

申请号：US15808813

申请日：2017-11-09

申请人： Kohta Aoyagi ,  Suguru Yokozawa ,  Masaya Kawarada ,  Nobuyuki Satoh

发明人： Kohta Aoyagi ,  Suguru Yokozawa ,  Masaya Kawarada ,  Nobuyuki Satoh

IPC分类号： B41J2/045 ,  B41J29/393 ,  B41J2/21 ,  B41J11/46 ,  B41J19/14 ,  B41J29/02 ,  B41J29/13

摘要： An image forming apparatus includes a conveyor to convey a recording medium; an image forming device including a recording head to form a test pattern including a first mark and a pair of second marks; an imaging device; and a processor. The processor includes a pattern forming unit to cause the image forming device to form one of the first and second marks and form the other after the conveyor conveys the recording medium by a predetermined conveyance amount, a position detector to detect positions of the first and second marks in the captured image, a ratio calculator to calculate a ratio between a distance between the second marks and deviation of the first mark in the captured image, and a distance calculator to calculate an actual distance of the deviation based on a theoretical distance between the second marks and the ratio.

公开(公告)号：US20200039211A1

公开(公告)日：2020-02-06

申请号：US16526132

申请日：2019-07-30

申请人： Kohhei YAMAGUCHI ,  Nobuyuki Satoh ,  Suguru Yokozawa

发明人： Kohhei YAMAGUCHI ,  Nobuyuki Satoh ,  Suguru Yokozawa

IPC分类号： B41J2/045

摘要： A liquid discharge apparatus includes a liquid discharge head, a scanning device, a conveyance device, a reading device, control circuitry, and a detecting device. The liquid discharge head is configured to discharge liquid to a target object. The scanning device is configured to move the liquid discharge head in a main scanning direction. The conveyance device is configured to convey the target object in a direction perpendicular to the main scanning direction. The reading device is disposed at a predetermined position with respect to the liquid discharge head. The control circuitry is configured to change a detection pattern image for detecting a defective nozzle, in accordance with a feed amount of the target object in the sub-scanning direction. The detecting device is configured to identify a nozzle corresponding to a defective portion of the detection pattern image read by the reading device.