Patents by Inventor Yuki Kamio
Yuki Kamio 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: 11949833Abstract: An object of one embodiment of the present invention is to accurately derive an inclination of a line image sensor. One embodiment of the present invention is an image reading apparatus including: a line image sensor in which reading elements for reading an image are arrayed in a predetermined direction; a first derivation unit configured to, based on read data acquired by reading a chart on which a plurality of dot patterns is printed with the line image sensor, derive coordinates of each of the plurality of dot patterns; a second derivation unit configured to derive an inclination angle of the line image sensor based on the coordinates derived by the first derivation unit; and a first calculation unit configured to calculate a first correction value for correcting the inclination of the line image sensor based on the inclination angle derived by the second derivation unit.Type: GrantFiled: October 13, 2021Date of Patent: April 2, 2024Assignee: Canon Kabushiki KaishaInventors: Yuki Kamio, Katsutoshi Miyahara, Yuichi Sato, Takahiro Ode
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Publication number: 20230347666Abstract: A roll sheet, in which a continuous sheet is wound in a roll form, is caused to rotate in a forward direction to supply the sheet to a printing unit. First and second sensors are arranged at positions facing an outer circumferential surface of the roll sheet and deviated in an axis line direction of the roll sheet. Outputs of the first and second sensors are changed in accordance with a distance to a sheet of the roll sheet. A rotation direction of the roll sheet is switched from a forward direction to a reverse direction on the basis of the outputs of the first and second sensors while the roll sheet is being rotated in the reverse direction.Type: ApplicationFiled: July 5, 2023Publication date: November 2, 2023Inventors: Midori Yasuda, Yuki Kamio, Masashi Kamada, Masato Eiyama, Yuki Igarashi, Masashi Negishi, Ryoya Shinjo, Ryo Kobayashi, Tomohiro Suzuki
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Patent number: 11731438Abstract: A printing apparatus, comprises a first circuit board configured to control a first motor and a printing unit that performs printing to a print medium, a second circuit board configured to control a second motor, a sensor configured to output a sensor signal used to control the first motor and the second motor, and a signal line configured to input the sensor signal from the sensor to the first circuit board and the second circuit board.Type: GrantFiled: August 27, 2021Date of Patent: August 22, 2023Assignee: Canon Kabushiki KaishaInventors: Yuki Kamio, Ryo Kobayashi, Kenji Sugiyama, Waichiro Saiki, Tomohiro Suzuki, Takeshi Koda, Toshiro Sugiyama, Tomoyuki Nagase
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Patent number: 11718110Abstract: A roll sheet, in which a continuous sheet is wound in a roll form, is caused to rotate in a forward direction to supply the sheet to a printing unit. First and second sensors are arranged at positions facing an outer circumferential surface of the roll sheet and deviated in an axis line direction of the roll sheet. Outputs of the first and second sensors are changed in accordance with a distance to a sheet of the roll sheet. A rotation direction of the roll sheet is switched from a forward direction to a reverse direction on the basis of the outputs of the first and second sensors while the roll sheet is being rotated in the reverse direction.Type: GrantFiled: August 7, 2020Date of Patent: August 8, 2023Assignee: Canon Kabushiki KaishaInventors: Midori Yasuda, Yuki Kamio, Masashi Kamada, Masato Eiyama, Yuki Igarashi, Masashi Negishi, Ryoya Shinjo, Ryo Kobayashi, Tomohiro Suzuki
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Patent number: 11601568Abstract: An object of the present disclosure is to implement highly accurate image connecting processing between line sensors. One embodiment of the present invention is an image reading apparatus having: a plurality of line image sensors arrayed in a first direction; a conveyance unit configured to convey a document in a second direction intersecting with the first direction; a calculation unit configured to calculate a correction value for correcting a deviation at the time of connecting image data obtained by each of the plurality of line image sensors based on read data obtained by reading a chart with the plurality of line image sensors, on which a plurality of dot patterns is printed and which is conveyed by the conveyance unit; a measurement unit configured to measure an amount of conveyance in the first direction in a case where the document is conveyed in the second direction by the conveyance unit.Type: GrantFiled: April 14, 2022Date of Patent: March 7, 2023Assignee: Canon Kabushiki KaishaInventor: Yuki Kamio
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Publication number: 20220345586Abstract: An object of the present disclosure is to implement highly accurate image connecting processing between line sensors. One embodiment of the present invention is an image reading apparatus having: a plurality of line image sensors arrayed in a first direction; a conveyance unit configured to convey a document in a second direction intersecting with the first direction; a calculation unit configured to calculate a correction value for correcting a deviation at the time of connecting image data obtained by each of the plurality of line image sensors based on read data obtained by reading a chart with the plurality of line image sensors, on which a plurality of dot patterns is printed and which is conveyed by the conveyance unit; a measurement unit configured to measure an amount of conveyance in the first direction in a case where the document is conveyed in the second direction by the conveyance unit.Type: ApplicationFiled: April 14, 2022Publication date: October 27, 2022Inventor: Yuki Kamio
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Publication number: 20220097416Abstract: A printing apparatus, comprises a first circuit board configured to control a first motor and a printing unit that performs printing to a print medium, a second circuit board configured to control a second motor, a sensor configured to output a sensor signal used to control the first motor and the second motor, and a signal line configured to input the sensor signal from the sensor to the first circuit board and the second circuit board.Type: ApplicationFiled: August 27, 2021Publication date: March 31, 2022Inventors: Yuki Kamio, Ryo Kobayashi, Kenji Sugiyama, Waichiro Saiki, Tomohiro Suzuki, Takeshi Koda, Toshiro Sugiyama, Tomoyuki Nagase
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Publication number: 20220070327Abstract: An object of one embodiment of the present invention is to accurately derive an inclination of a line image sensor. One embodiment of the present invention is an image reading apparatus including: a line image sensor in which reading elements for reading an image are arrayed in a predetermined direction; a first derivation unit configured to, based on read data acquired by reading a chart on which a plurality of dot patterns is printed with the line image sensor, derive coordinates of each of the plurality of dot patterns; a second derivation unit configured to derive an inclination angle of the line image sensor based on the coordinates derived by the first derivation unit; and a first calculation unit configured to calculate a first correction value for correcting the inclination of the line image sensor based on the inclination angle derived by the second derivation unit.Type: ApplicationFiled: October 13, 2021Publication date: March 3, 2022Inventors: Yuki KAMIO, Katsutoshi MIYAHARA, Yuichi SATO, Takahiro ODE
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Patent number: 11178304Abstract: An object of one embodiment of the present invention is to accurately derive an inclination of a line image sensor. One embodiment of the present invention is an image reading apparatus including: a line image sensor in which reading elements for reading an image are arrayed in a predetermined direction; a first derivation unit configured to, based on read data acquired by reading a chart on which a plurality of dot patterns is printed with the line image sensor, derive coordinates of each of the plurality of dot patterns; a second derivation unit configured to derive an inclination angle of the line image sensor based on the coordinates derived by the first derivation unit; and a first calculation unit configured to calculate a first correction value for correcting the inclination of the line image sensor based on the inclination angle derived by the second derivation unit.Type: GrantFiled: September 24, 2020Date of Patent: November 16, 2021Assignee: Canon Kabushiki KaishaInventors: Yuki Kamio, Katsutoshi Miyahara, Yuichi Sato, Takahiro Ode
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Publication number: 20210112174Abstract: An object of one embodiment of the present invention is to accurately derive an inclination of a line image sensor. One embodiment of the present invention is an image reading apparatus including: a line image sensor in which reading elements for reading an image are arrayed in a predetermined direction; a first derivation unit configured to, based on read data acquired by reading a chart on which a plurality of dot patterns is printed with the line image sensor, derive coordinates of each of the plurality of dot patterns; a second derivation unit configured to derive an inclination angle of the line image sensor based on the coordinates derived by the first derivation unit; and a first calculation unit configured to calculate a first correction value for correcting the inclination of the line image sensor based on the inclination angle derived by the second derivation unit.Type: ApplicationFiled: September 24, 2020Publication date: April 15, 2021Inventors: Yuki KAMIO, Katsutoshi MIYAHARA, Yuichi SATO, Takahiro ODE
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Publication number: 20200369049Abstract: A roll sheet, in which a continuous sheet is wound in a roll form, is caused to rotate in a forward direction to supply the sheet to a printing unit. First and second sensors are arranged at positions facing an outer circumferential surface of the roll sheet and deviated in an axis line direction of the roll sheet. Outputs of the first and second sensors are changed in accordance with a distance to a sheet of the roll sheet. A rotation direction of the roll sheet is switched from a forward direction to a reverse direction on the basis of the outputs of the first and second sensors while the roll sheet is being rotated in the reverse direction.Type: ApplicationFiled: August 7, 2020Publication date: November 26, 2020Inventors: Midori Yasuda, Yuki Kamio, Masashi Kamada, Masato Eiyama, Yuki Igarashi, Masashi Negishi, Ryoya Shinjo, Ryo Kobayashi, Tomohiro Suzuki
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Patent number: 10766279Abstract: A roll sheet, in which a continuous sheet is wound in a roll form, is caused to rotate in a forward direction to supply the sheet to a printing unit. First and second sensors are arranged at positions facing an outer circumferential surface of the roll sheet and deviated in an axis line direction of the roll sheet. Outputs of the first and second sensors are changed in accordance with a distance to a sheet of the roll sheet. A rotation direction of the roll sheet is switched from a forward direction to a reverse direction on the basis of the outputs of the first and second sensors while the roll sheet is being rotated in the reverse direction.Type: GrantFiled: March 6, 2018Date of Patent: September 8, 2020Assignee: Canon Kabushiki KaishaInventors: Midori Yasuda, Yuki Kamio, Masashi Kamada, Masato Eiyama, Yuki Igarashi, Masashi Negishi, Ryoya Shinjo, Ryo Kobayashi, Tomohiro Suzuki
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Publication number: 20180257403Abstract: A roll sheet in which a continuous sheet is wound in a roll form is caused to rotate in a forward direction to supply the sheet to a printing unit. First and second sensors are arranged at positions facing an outer circumferential surface of the roll sheet and deviated in an axis line direction of the roll sheet. Outputs of the first and second sensors are changed in accordance with a distance to the sheet of the roll sheet. A rotation direction of the roll sheet is switched from a forward direction to a reverse direction on the basis of the outputs of the first and second sensors while the roll sheet is being rotated in the reverse direction.Type: ApplicationFiled: March 6, 2018Publication date: September 13, 2018Inventors: Midori Yasuda, Yuki Kamio, Masashi Kamada, Masato Eiyama, Yuki Igarashi, Masashi Negishi, Ryoya Shinjo, Ryo Kobayashi, Tomohiro Suzuki