Patents by Inventor Masashi Negishi
Masashi Negishi 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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Publication number: 20240150577Abstract: It is desirable to provide a polyarylene sulfide resin composition excellent in resistance to heat and humidity and moldability without deteriorating physical properties such as mechanical strength. More specifically, the present invention is characterized by including a polyarylene sulfide resin, glass fibers having been subjected to surface treatment with a sizing agent including an epoxy resin and a polyether resin, and a silane coupling agent having a functional group, in which the total content of the epoxy resin and the polyether resin in the sizing agent is 65% to 100% by mass, and the isothermal crystallization time is 9 seconds or shorter.Type: ApplicationFiled: December 16, 2021Publication date: May 9, 2024Applicant: DIC CorporationInventors: Kunito Kurata, Masashi Kunishige, Nobuyuki Matsumoto, Tomomichi Kanda, Hiroaki Negishi
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Publication number: 20240075737Abstract: In a state where a distance from an ejection port surface of an ejection head to a predetermined position corresponds to a first distance, a period detection unit detects a first period from when ejection of a droplet from an ejection port is started until when a droplet detection unit detects the droplet, and in a state where the distance from the ejection port surface of the ejection head to the predetermined position is changed to a second distance by a change unit, the period detection unit detects a second period from when ejection of a droplet from the ejection port is started until when the droplet detection unit detects the droplet, the second distance being different from the first distance. A calculation unit calculates an ejection speed of the droplet, based on the first distance, the second distance, the first period, and the second period.Type: ApplicationFiled: November 10, 2023Publication date: March 7, 2024Inventors: Yusuke Kiyokawa, Masashi Negishi
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Publication number: 20240025191Abstract: A roll sheet with a continuous sheet wound in a roll form is rotated in a forward direction to supply the sheet to a printing unit. A sensor whose output is changed in accordance with a distance between the sensor and the sheet is used. A rotation direction of the roll sheet is switched from an opposite direction to the forward direction on the basis of the output of the sensor during rotation of the roll sheet in the opposite direction.Type: ApplicationFiled: October 3, 2023Publication date: January 25, 2024Inventors: Masato Eiyama, Yuki Igarashi, Masashi Kamada, Masashi Negishi, Ryoya Shinjo, Ryo Kobayashi, Tomohiro Suzuki, Tsutomu Obata
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Patent number: 11840077Abstract: In a state where a distance from an ejection port surface of an ejection head to a predetermined position corresponds to a first distance, a period detection unit detects a first period from when ejection of a droplet from an ejection port is started until when a droplet detection unit detects the droplet, and in a state where the distance from the ejection port surface of the ejection head to the predetermined position is changed to a second distance by a change unit, the period detection unit detects a second period from when ejection of a droplet from the ejection port is started until when the droplet detection unit detects the droplet, the second distance being different from the first distance. A calculation unit calculates an ejection speed of the droplet, based on the first distance, the second distance, the first period, and the second period.Type: GrantFiled: May 17, 2021Date of Patent: December 12, 2023Assignee: Canon Kabushiki KaishaInventors: Yusuke Kiyokawa, Masashi Negishi
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Publication number: 20230391076Abstract: An embodiment of the present invention is a printing apparatus including: a print head including a plurality of nozzles configured to eject droplets onto a print medium; a control unit configured to control driving of each of the plurality of nozzles to eject the droplets; and an inspection unit configured to inspect whether or not each of the plurality of nozzles is able to eject the droplets normally by driving the print head by the control unit, wherein in a case where the inspection unit inspects one target nozzle among the plurality of nozzles, the control unit drives the target nozzle and one or more neighboring nozzles arranged near the target nozzle.Type: ApplicationFiled: May 24, 2023Publication date: December 7, 2023Inventors: MASASHI NEGISHI, YUSUKE KIYOKAWA
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Patent number: 11806995Abstract: A roll sheet with a continuous sheet wound in a roll form is rotated in a forward direction to supply the sheet to a printing unit. A sensor whose output is changed in accordance with a distance between the sensor and the sheet is used. A rotation direction of the roll sheet is switched from an opposite direction to the forward direction on the basis of the output of the sensor during rotation of the roll sheet in the opposite direction.Type: GrantFiled: January 18, 2022Date of Patent: November 7, 2023Assignee: Canon Kabushiki KaishaInventors: Masato Eiyama, Yuki Igarashi, Masashi Kamada, Masashi Negishi, Ryoya Shinjo, Ryo Kobayashi, Tomohiro Suzuki, Tsutomu Obata
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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: 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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Publication number: 20230227282Abstract: A sheet supplying apparatus, which is capable of winding a sheet tightly, includes a driving unit configured to cause a roll including a wound consecutive sheet to rotate in a first direction for feeding the sheet or a second direction opposite to the first direction, a sensor that detects a leading end portion of the sheet separated from an outer circumferential surface of the roll, and a contact body that presses the outer circumferential surface. Before the sheet is fed, in a state in which the contact body presses the outer circumferential surface, the driving unit causes the roll to continuously rotate in the second direction until a detection cycle of the leading end portion by the sensor is less than a predetermined value.Type: ApplicationFiled: January 13, 2023Publication date: July 20, 2023Inventors: Tomohiro Suzuki, Masashi Kamada, Masato Eiyama, Yuki Igarashi, Masashi Negishi, Ryoya Shinjo, Ryo Kobayashi
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Patent number: 11577927Abstract: A sheet supplying apparatus, which is capable of winding a sheet tightly, includes a driving unit configured to cause a roll including a wound consecutive sheet to rotate in a first direction for feeding the sheet or a second direction opposite to the first direction, a sensor that detects a leading end portion of the sheet separated from an outer circumferential surface of the roll, and a contact body that presses the outer circumferential surface. Before the sheet is fed, in a state in which the contact body presses the outer circumferential surface, the driving unit causes the roll to continuously rotate in the second direction until a detection cycle of the leading end portion by the sensor is less than a predetermined value.Type: GrantFiled: October 13, 2020Date of Patent: February 14, 2023Assignee: Canon Kabushiki KaishaInventors: Tomohiro Suzuki, Masashi Kamada, Masato Eiyama, Yuki Igarashi, Masashi Negishi, Ryoya Shinjo, Ryo Kobayashi
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Publication number: 20220134785Abstract: A roll sheet with a continuous sheet wound in a roll form is rotated in a forward direction to supply the sheet to a printing unit. A sensor whose output is changed in accordance with a distance between the sensor and the sheet is used. A rotation direction of the roll sheet is switched from an opposite direction to the forward direction on the basis of the output of the sensor during rotation of the roll sheet in the opposite direction.Type: ApplicationFiled: January 18, 2022Publication date: May 5, 2022Inventors: Masato Eiyama, Yuki Igarashi, Masashi Kamada, Masashi Negishi, Ryoya Shinjo, Ryo Kobayashi, Tomohiro Suzuki, Tsutomu Obata
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Patent number: 11273654Abstract: A roll sheet with a continuous sheet wound in a roll form is rotated in a forward direction to supply the sheet to a printing unit. A sensor whose output is changed in accordance with a distance between the sensor and the sheet is used. A rotation direction of the roll sheet is switched from an opposite direction to the forward direction on the basis of the output of the sensor during rotation of the roll sheet in the opposite direction.Type: GrantFiled: March 20, 2020Date of Patent: March 15, 2022Assignee: Canon Kabushiki KaishaInventors: Masato Eiyama, Yuki Igarashi, Masashi Kamada, Masashi Negishi, Ryoya Shinjo, Ryo Kobayashi, Tomohiro Suzuki, Tsutomu Obata
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Patent number: 11230125Abstract: A roll sheet with a continuous sheet wound in a roll form is rotated in a forward direction to supply the sheet to a printing unit. A sensor whose output is changed in accordance with a distance between the sensor and the sheet is used. A rotation direction of the roll sheet is switched from an opposite direction to the forward direction on the basis of the output of the sensor during rotation of the roll sheet in the opposite direction.Type: GrantFiled: March 20, 2020Date of Patent: January 25, 2022Assignee: Canon Kabushiki KaishaInventors: Masato Eiyama, Yuki Igarashi, Masashi Kamada, Masashi Negishi, Ryoya Shinjo, Ryo Kobayashi, Tomohiro Suzuki, Tsutomu Obata
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Publication number: 20210362493Abstract: In a state where a distance from an ejection port surface of an ejection head to a predetermined position corresponds to a first distance, a period detection unit detects a first period from when ejection of a droplet from an ejection port is started until when a droplet detection unit detects the droplet, and in a state where the distance from the ejection port surface of the ejection head to the predetermined position is changed to a second distance by a change unit, the period detection unit detects a second period from when ejection of a droplet from the ejection port is started until when the droplet detection unit detects the droplet, the second distance being different from the first distance. A calculation unit calculates an ejection speed of the droplet, based on the first distance, the second distance, the first period, and the second period.Type: ApplicationFiled: May 17, 2021Publication date: November 25, 2021Inventors: Yusuke Kiyokawa, Masashi Negishi
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Publication number: 20210024315Abstract: A sheet supplying apparatus, which is capable of winding a sheet tightly, includes a driving unit configured to cause a roll including a wound consecutive sheet to rotate in a first direction for feeding the sheet or a second direction opposite to the first direction, a sensor that detects a leading end portion of the sheet separated from an outer circumferential surface of the roll, and a contact body that presses the outer circumferential surface. Before the sheet is fed, in a state in which the contact body presses the outer circumferential surface, the driving unit causes the roll to continuously rotate in the second direction until a detection cycle of the leading end portion by the sensor is less than a predetermined value.Type: ApplicationFiled: October 13, 2020Publication date: January 28, 2021Inventors: Tomohiro Suzuki, Masashi Kamada, Masato Eiyama, Yuki Igarashi, Masashi Negishi, Ryoya Shinjo, Ryo Kobayashi
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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: 10829329Abstract: A sheet supplying apparatus, which is capable of winding a sheet tightly, includes a driving unit configured to cause a roll including a wound consecutive sheet to rotate in a first direction for feeding the sheet or a second direction opposite to the first direction, a sensor that detects a leading end portion of the sheet separated from an outer circumferential surface of the roll, and a contact body that presses the outer circumferential surface. Before the sheet is fed, in a state in which the contact body presses the outer circumferential surface, the driving unit causes the roll to continuously rotate in the second direction until a detection cycle of the leading end portion by the sensor is less than a predetermined value.Type: GrantFiled: March 2, 2018Date of Patent: November 10, 2020Assignee: Canon Kabushiki KaishaInventors: Tomohiro Suzuki, Masashi Kamada, Masato Eiyama, Yuki Igarashi, Masashi Negishi, Ryoya Shinjo, Ryo Kobayashi
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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: 20200215832Abstract: A roll sheet with a continuous sheet wound in a roll form is rotated in a forward direction to supply the sheet to a printing unit. A sensor whose output is changed in accordance with a distance between the sensor and the sheet is used. A rotation direction of the roll sheet is switched from an opposite direction to the forward direction on the basis of the output of the sensor during rotation of the roll sheet in the opposite direction.Type: ApplicationFiled: March 20, 2020Publication date: July 9, 2020Inventors: Masato Eiyama, Yuki Igarashi, Masashi Kamada, Masashi Negishi, Ryoya Shinjo, Ryo Kobayashi, Tomohiro Suzuki, Tsutomu Obata
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Patent number: 10703117Abstract: A roll sheet with a continuous sheet wound in a roll form is rotated in a forward direction to supply the sheet to a printing unit. A sensor whose output is changed in accordance with a distance between the sensor and the sheet is used. A rotation direction of the roll sheet is switched from an opposite direction to the forward direction on the basis of the output of the sensor during rotation of the roll sheet in the opposite direction.Type: GrantFiled: February 27, 2018Date of Patent: July 7, 2020Assignee: Canon Kabushiki KaishaInventors: Masato Eiyama, Yuki Igarashi, Masashi Kamada, Masashi Negishi, Ryoya Shinjo, Ryo Kobayashi, Tomohiro Suzuki, Tsutomu Obata