Patents by Inventor Shigeyasu Nagoshi
Shigeyasu Nagoshi 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: 8955959Abstract: A first reading unit that reads a pattern or an image formed on a sheet by a print unit for recognizing a print unit state, a second reading unit that reads a cut mark formed on the sheet on a downstream thereof, a cutter that cuts the sheet on a downstream thereof, and a reverse unit that reverses the sheet fed to the print unit again are provided. In duplex printing, the sheet where images are sequentially printed on a first surface is led to the reverse unit, the front and rear faces are reversed, and the sheet is fed to the print unit again. The sheet where images and cut marks are sequentially printed on a second surface is cut by the cutter for each piece and discharged. The sheet is cut on the basis of a reading of the cut mark by the second reading unit.Type: GrantFiled: November 30, 2010Date of Patent: February 17, 2015Assignee: Canon Kabushiki KaishaInventors: Minoru Teshigawara, Shigeyasu Nagoshi, Yoshiaki Murayama, Susumu Hirosawa, Takeshi Murase, Yutaka Kano, Satoshi Azuma, Kentarou Muro, Masao Kato, Minako Kato
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Patent number: 8950845Abstract: A printing apparatus conducts inspection associated with printing by changing a relative positional relationship between a line print head and a sheet feeding position for a sheet in a direction perpendicular to a direction in which the sheet is fed, forming an image on the sheet using the line print head a plurality of times, and reading the formed images using a reading unit.Type: GrantFiled: April 30, 2013Date of Patent: February 10, 2015Assignee: Canon Kabushiki KaishaInventors: Shigeyasu Nagoshi, Makoto Torigoe, Yoshiaki Murayama, Satoshi Azuma, Kei Kosaka
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Patent number: 8919906Abstract: The present invention provides a recording apparatus including recording heads each including a plurality of nozzle arrays that are arranged so as to overlap, wherein the width with which the overlapping portions of the recording heads for colors that are simultaneously used with a relatively high frequency overlap in an intersecting direction that intersects an array direction of nozzles is smaller than the width with which the overlapping portions of the recording heads for colors that are simultaneously used with a relatively low frequency overlap in the intersecting direction.Type: GrantFiled: September 27, 2013Date of Patent: December 30, 2014Assignee: Canon Kabushiki KaishaInventors: Shigeyasu Nagoshi, Satoshi Azuma, Yoshiaki Murayama, Minoru Teshigawara, Susumu Hirosawa, Yutaka Kano, Takeshi Murase, Kentarou Muro, Masao Kato, Minako Kato
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Publication number: 20140247307Abstract: A printing method is performed on a plurality of inkjet print heads to which humidified air is supplied to retain the humidity in the print heads. Ink colors for the plurality of heads are arranged in a sequence corresponding to ink characteristics. The plurality of print heads is divided into groups, with one of the groups being subjected to preliminary ejection on a sheet. The other print head group not subjected to preliminary ejection is located in a more upstream area with respect to a conveyance direction of the sheet.Type: ApplicationFiled: May 8, 2014Publication date: September 4, 2014Applicant: CANON KABUSHIKI KAISHAInventors: Satoshi Azuma, Shigeyasu Nagoshi, Minoru Teshigawara, Yoshiaki Murayama, Susumu Hirosawa, Yutaka Kano, Takeshi Murase, Kentarou Muro, Masao Kato, Minako Kato
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Patent number: 8757754Abstract: A printing apparatus includes a plurality of inkjet print heads to which humidified air is supplied to retain the humidity in the print heads. Ink colors for the plurality of heads are arranged in a sequence corresponding to ink characteristics. The plurality of print heads are arranged in a sequence such that a print head configured to eject ink characterized by having a larger amount of volatile components evaporated within a predetermined time is located in a more upstream area.Type: GrantFiled: December 9, 2010Date of Patent: June 24, 2014Assignee: Canon Kabushiki KaishaInventors: Satoshi Azuma, Shigeyasu Nagoshi, Minoru Teshigawara, Yoshiaki Murayama, Susumu Hirosawa, Yutaka Kano, Takeshi Murase, Kentarou Muro, Masao Kato, Minako Kato
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Publication number: 20140092164Abstract: A process of detecting a defective recording element and a process of correcting the defective recording element are performed with appropriate processing loads. When the detection process and the correction processes are performed with small loads, for example, at a time of recording, a resolution used for reading an inspection pattern is set lower than that set in a case where the processes can be performed with small loads, for example, at down time before recording. The reading resolution to be set may be determined by an apparatus in accordance with a processing load or may be arbitrarily determined by a user.Type: ApplicationFiled: December 5, 2013Publication date: April 3, 2014Applicant: CANON KABUSHIKI KAISHAInventors: Takeshi Murase, Masao Kato, Shigeyasu Nagoshi, Minako Kato, Minoru Teshigawara, Yoshiaki Murayama, Susumu Hirosawa, Yutaka Kano, Satoshi Azuma, Kentarou Muro
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Patent number: 8675250Abstract: A waiting time Ts is decided on the basis of ink type information and ink feed amount information, referring to waiting time table A (Step 6). Along with this, a dried printing paper is carried to and stopped in a waiting area 9 (Step 7), a time period T is measured after stopping, and measurement processing in the next step is delayed until the time period T reaches the waiting time Ts. Then, when the time period T reaches the waiting time Ts, a measuring instrument 10 is used to measure a density of a patch printed on the printing paper (Steps 8 and 9).Type: GrantFiled: December 9, 2010Date of Patent: March 18, 2014Assignee: Canon Kabushiki KaishaInventors: Kentarou Muro, Susumu Hirosawa, Yutaka Kano, Shigeyasu Nagoshi, Minoru Teshigawara, Yoshiaki Murayama, Takeshi Murase, Satoshi Azuma, Masao Kato, Minako Kato
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Publication number: 20140022303Abstract: The present invention provides a recording apparatus including recording heads each including a plurality of nozzle arrays that are arranged so as to overlap, wherein the width with which the overlapping portions of the recording heads for colors that are simultaneously used with a relatively high frequency overlap in an intersecting direction that intersects an array direction of nozzles is smaller than the width with which the overlapping portions of the recording heads for colors that are simultaneously used with a relatively low frequency overlap in the intersecting direction.Type: ApplicationFiled: September 27, 2013Publication date: January 23, 2014Applicant: CANON KABUSHIKI KAISHAInventors: Shigeyasu Nagoshi, Satoshi Azuma, Yoshiaki Murayama, Minoru Teshigawara, Susumu Hirosawa, Yutaka Kano, Takeshi Murase, Kentarou Muro, Masao Kato, Minako Kato
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Patent number: 8628164Abstract: A process of detecting a defective recording element and a process of correcting the defective recording element are performed with appropriate processing loads. When the detection process and the correction processes are performed with small loads, for example, at a time of recording, a resolution used for reading an inspection pattern is set lower than that set in a case where the processes can be performed with small loads, for example, at down time before recording. The reading resolution to be set may be determined by an apparatus in accordance with a processing load or may be arbitrarily determined by a user.Type: GrantFiled: December 9, 2010Date of Patent: January 14, 2014Assignee: Canon Kabushiki KaishaInventors: Takeshi Murase, Masao Kato, Shigeyasu Nagoshi, Minako Kato, Minoru Teshigawara, Yoshiaki Murayama, Susumu Hirosawa, Yutaka Kano, Satoshi Azuma, Kentarou Muro
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Patent number: 8619323Abstract: When the number (M) of passes is smaller than a threshold value, a first processing mode is selected. In the first processing mode, multivalued image data is divided into pieces of multivalued data corresponding to passes and a common multivalued data for a plurality of passes, the pieces of multivalued data are individually binarized to generate pieces of binary data corresponding to the passes, and the common multivalued data is binarized to generate common binary data for these passes. On the other hand, when the number (M) of passes is equal to or larger than the threshold value, a second processing mode is selected. In the second processing mode, multivalued image data is binarized and the binary data is divided into pieces of binary data corresponding to passes with a mask.Type: GrantFiled: November 24, 2010Date of Patent: December 31, 2013Assignee: Canon Kabushiki KaishaInventors: Fumihiro Goto, Akitoshi Yamada, Mitsuhiro Ono, Rie Kajihara, Fumitaka Goto, Okinori Tsuchiya, Ayumi Sano, Tomokazu Ishikawa, Takashi Fujita, Shigeyasu Nagoshi, Akihiko Nakatani
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Patent number: 8610955Abstract: In image processing, it is possible to suitably reduce density unevenness and graininess according to the ink used in printing. More specifically, when dividing multi-valued data and generating data for 2-pass multi-pass printing, in addition to divided multi-valued data for each of the two passes, divided multi-valued data that is common to the two passes is also generated. Moreover, quantized data of that common multi-valued data is reflected on the quantized data for each of the passes. Furthermore, when generating the quantized data, the division ratios used when generating the common data using the aforementioned multi-valued data division are set according to the colors of ink used in printing. By doing so, it becomes possible to suitably reduce density unevenness and graininess according to the colors used in printing.Type: GrantFiled: November 29, 2010Date of Patent: December 17, 2013Assignee: Canon Kabushiki KaishaInventors: Fumitaka Goto, Akitoshi Yamada, Mitsuhiro Ono, Rie Kajihara, Okinori Tsuchiya, Ayumi Sano, Tomokazu Ishikawa, Takashi Fujita, Fumihiro Goto, Shigeyasu Nagoshi, Akihiko Nakatani
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Patent number: 8567891Abstract: The present invention provides a recording apparatus including recording heads each including a plurality of nozzle arrays that are arranged so as to overlap, wherein the width with which the overlapping portions of the recording heads for colors that are simultaneously used with a relatively high frequency overlap in an intersecting direction that intersects an array direction of nozzles is smaller than the width with which the overlapping portions of the recording heads for colors that are simultaneously used with a relatively low frequency overlap in the intersecting direction.Type: GrantFiled: December 3, 2010Date of Patent: October 29, 2013Assignee: Canon Kabushiki KaishaInventors: Shigeyasu Nagoshi, Satoshi Azuma, Yoshiaki Murayama, Minoru Teshigawara, Susumu Hirosawa, Yutaka Kano, Takeshi Murase, Kentarou Muro, Masao Kato, Minako Kato
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Publication number: 20130235115Abstract: A printing apparatus conducts inspection associated with printing by changing a relative positional relationship between a line print head and a sheet feeding position for a sheet in a direction perpendicular to a direction in which the sheet is fed, forming an image on the sheet using the line print head a plurality of times, and reading the formed images using a reading unit.Type: ApplicationFiled: April 30, 2013Publication date: September 12, 2013Applicant: CANON KABUSHIKI KAISHAInventors: Shigeyasu Nagoshi, Makoto Torigoe, Yoshiaki Murayama, Satoshi Azuma, Kei Kosaka
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Patent number: 8523320Abstract: The present invention provides a recording apparatus including recording heads each including a plurality of nozzle arrays that are arranged so as to overlap, wherein overlapping portions of the recording heads for two different colors are separated from each other with a distance therebetween in an array direction of nozzles.Type: GrantFiled: December 3, 2010Date of Patent: September 3, 2013Assignee: Canon Kabushiki KaishaInventors: Shigeyasu Nagoshi, Satoshi Azuma, Yoshiaki Murayama, Minoru Teshigawara, Susumu Hirosawa, Yutaka Kano, Takeshi Murase, Kentarou Muro, Masao Kato, Minako Kato
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Patent number: 8488198Abstract: When dividing multi-valued data and generating data for two-pass multi-pass printing, in addition to divided multi-valued data that are divided for each of the two passes, divided multi-valued data that is common to both of the two passes is generated. Moreover, quantized data of that common multi-valued data is reflected onto the quantized data for each pass. Furthermore, when generating quantized data, division ratios that are used when generating the common data by the multi-valued data division described above are set according to the image characteristics (whether or not the area is flesh color) of the multi-valued data. Thereby, it is possible to perform high-quality printing regardless of the image characteristics by taking a suitable balance between suppressing density unevenness and suppressing graininess.Type: GrantFiled: November 29, 2010Date of Patent: July 16, 2013Assignee: Canon Kabushiki KaishaInventors: Shigeyasu Nagoshi, Akitoshi Yamada, Mitsuhiro Ono, Rie Kajihara, Okinori Tsuchiya, Ayumi Sano, Tomokazu Ishikawa, Takashi Fujita, Fumihiro Goto, Akihiko Nakatani, Fumitaka Goto
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Patent number: 8482800Abstract: In image processing it is possible to adequately reduce density unevenness and graininess according to the duty of the image data. More specifically, when dividing multi-valued data and generating 2-pass multi-pass printing data, in addition to the divided multi-valued data for each of the two passes, divided multi-valued data that is common to both of the two passes is also generated. Moreover, the quantized data of that common multi-valued data is reflected on the quantized data of each pass. Furthermore, when generating quantized data, the division ratio when generating common data in the division of multi-valued data is set according to the duty (gradation value) of the multi-valued data. By doing so it becomes possible to adequately reduce the density unevenness and graininess according to the duty of the image data.Type: GrantFiled: November 29, 2010Date of Patent: July 9, 2013Assignee: Canon Kabushiki KaishaInventors: Fumitaka Goto, Akitoshi Yamada, Mitsuhiro Ono, Rie Kajihara, Okinori Tsuchiya, Ayumi Sano, Tomokazu Ishikawa, Takashi Fujita, Fumihiro Goto, Shigeyasu Nagoshi, Akihiko Nakatani
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Patent number: 8444246Abstract: An apparatus includes: a drying unit to dry a printing medium on which an image was printed using an inkjet head; a humidification unit to humidify the printing medium that was dried by the drying unit so that the moisture content of the printing medium becomes the equilibrium state in the ambient environment; a colorimetric unit to perform colorimetry on the printing medium that was humidified by the humidification unit; and a calibration unit to calibrate printing properties on the basis of the result of colorimetry by the colorimetric unit.Type: GrantFiled: December 9, 2010Date of Patent: May 21, 2013Assignee: Canon Kabushiki KaishaInventors: Kentarou Muro, Susumu Hirosawa, Yutaka Kano, Shigeyasu Nagoshi, Minoru Teshigawara, Yoshiaki Murayama, Takeshi Murase, Satoshi Azuma, Masao Kato, Minako Kato
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Publication number: 20130076811Abstract: An inkjet recording apparatus includes a recording head configured to discharge ink, a first ink tank configured to store ink to be supplied to the recording head, a circulation path configured to circulate ink between the first ink tank and the recording head, a measurement unit configured to measure an ink temperature in the circulation path, a second ink tank configured to replenish ink to the circulation path, and a control unit configured to control replenishment of ink from the second ink tank to the circulation path based on the ink temperature measured by the measurement unit.Type: ApplicationFiled: September 13, 2012Publication date: March 28, 2013Applicant: CANON KABUSHIKI KAISHAInventors: Yoshiyuki Honda, Takeshi Murase, Atsushi Sakamoto, Minoru Teshigawara, Makoto Torigoe, Shigeyasu Nagoshi, Yoshiaki Murayama, Susumu Hirosawa, Yutaka Kano, Satoshi Azuma, Kentarou Muro, Kei Kosaka
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Patent number: 8205953Abstract: An inkjet printing apparatus, an inkjet printing system and an inkjet printing method are provided in order to correct a print density at a joint (overlapped portion) of nozzle arrays of a print head. The print density at the joint (overlapped portion) of the nozzle arrays is corrected based on a positional deviation between two adjacent nozzle arrays of the print head.Type: GrantFiled: December 14, 2009Date of Patent: June 26, 2012Assignee: Canon Kabushiki KaishaInventors: Satoshi Azuma, Noribumi Koitabashi, Shigeyasu Nagoshi, Koichiro Nakazawa
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Publication number: 20120114188Abstract: A process of detecting a defective recording element and a process of correcting the defective recording element are performed with appropriate processing loads. When the detection process and the correction processes are performed with small loads, for example, at a time of recording, a resolution used for reading an inspection pattern is set lower than that set in a case where the processes can be performed with small loads, for example, at down time before recording. The reading resolution to be set may be determined by an apparatus in accordance with a processing load or may be arbitrarily determined by a user.Type: ApplicationFiled: December 9, 2010Publication date: May 10, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Takeshi Murase, Masao Kato, Shigeyasu Nagoshi, Minako Kato, Minoru Teshigawara, Yoshiaki Murayama, Susumu Hirosawa, Yutaka Kano, Satoshi Azuma, Kentarou Muro