Patents by Inventor Takeshi Murase
Takeshi Murase 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: 10507646Abstract: Priority order is updated so that an ejection port that is selected as an ejection port subjected to ejection failure determination in a pixel row in which a previous ejection operation is to be performed has the lowest priority order, which is used for selecting an ejection port subjected to ejection failure determination, in a pixel row in which a subsequent ejection operation is to be performed.Type: GrantFiled: September 19, 2017Date of Patent: December 17, 2019Assignee: CANON KABUSHIKI KAISHAInventors: Satoshi Kitai, Kouichi Serizawa, Masahiko Umezawa, Atsushi Takahashi, Shinsuke Ikegami, Takeshi Murase, Masashi Hayashi, Yuki Sawai
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Publication number: 20190329925Abstract: A method for manufacturing a metal bottle having a mouthpiece in an upper part of a bottomed cylindrical bottle body, including forming a screw part on the mouthpiece and then forming a curl at a tip of the mouthpiece. During formation of the screw part, a height of the first-stage screw thread from a tip side in a complete screw part and a height of the second-stage screw thread from the tip side are substantially equal and a distance between an apex part of the first-stage screw thread and a bottle axis is smaller than a distance between the apex part of the second-stage screw thread and the bottle axis. After formation of the curl, a distance between the apex part of the first-stage screw thread and the bottle axis and a distance between the apex part of the second-stage screw thread and the bottle axis are substantially equal.Type: ApplicationFiled: October 10, 2017Publication date: October 31, 2019Applicant: TOYO SEIKAN CO., LTD.Inventors: Takeshi AIHARA, Masaomi TAMURA, Toshiyuki HASEGAWA, Takeshi MURASE, Tomohiko NAKAMURA, Naoya MATSUMOTO, Nobuhiro SASAJIMA
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Patent number: 10293604Abstract: In order to keep possible local temperature differences in a liquid ejection head small to allow stable liquid ejection performance to be achieved, temperatures in a plurality of heating areas in a liquid ejection head are discretely controlled using heating elements and temperature detection elements.Type: GrantFiled: March 15, 2017Date of Patent: May 21, 2019Assignee: Canon Kabushiki KaishaInventors: Takatsuna Aoki, Shuzo Iwanaga, Seiichiro Karita, Kazuhiro Yamada, Shingo Okushima, Zentaro Tamenaga, Akira Yamamoto, Tatsurou Mori, Noriyasu Nagai, Akio Saito, Masashi Hayashi, Takeshi Murase, Yuki Sawai
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Publication number: 20190009546Abstract: A printing apparatus includes a transfer drum, transfer sections arranged on a peripheral surface of the drum and moving cyclically on a circular orbit by rotation of the drum, a print unit, a liquid absorbing sheet of a peripheral length corresponding to an integer multiple or an integer fraction of a peripheral length of the circular orbit and absorbing a liquid component from the ink image, a driving unit moving the liquid absorbing sheet cyclically, a displacing unit displacing the liquid absorbing sheet between a contact state and a retracted state, and a control unit controlling, when displacing again the liquid absorbing sheet to the contact state, the driving unit so as to change combinations of the transfer sections and regions of the liquid absorbing sheet that respectively contact the transfer sections at a liquid absorbing position.Type: ApplicationFiled: June 27, 2018Publication date: January 10, 2019Inventors: Atsushi Sakamoto, Shigeyasu Nagoshi, Takeshi Murase
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Publication number: 20190009594Abstract: A printing apparatus includes a transfer drum configured to be rotationally driven, transfer sections arranged on a peripheral surface of the transfer drum and configured to move cyclically on a circular orbit by rotation of the transfer drum, a print unit configured to form an ink image on the transfer section, a liquid absorbing sheet configured to absorb a liquid component from the ink image on the transfer section before a transfer operation of transferring the ink image formed on the transfer section to a print medium, and a driving unit configured to move the liquid absorbing sheet cyclically. A peripheral length of the liquid absorbing sheet corresponds to an integer multiple or an integer fraction of a peripheral length of the circular orbit.Type: ApplicationFiled: June 27, 2018Publication date: January 10, 2019Inventors: Atsushi Sakamoto, Shigeyasu Nagoshi, Takeshi Murase
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Publication number: 20190001662Abstract: A printing apparatus according to an embodiment of this invention brings, out of a cleaning unit that cleans a transfer member in contact with a transfer member and an application unit that applies a reactive liquid with ink to the transfer member, the cleaning unit into contact with the transfer member to clean the transfer member by the cleaning unit at the start of the printing operation. Alternatively, out of the application unit and an absorbing unit that absorbs a liquid component from the reactive liquid applied by the application unit in contact with the transfer member, the printing apparatus brings the application unit into contact with the transfer member to apply the reactive liquid by the application unit.Type: ApplicationFiled: June 22, 2018Publication date: January 3, 2019Inventors: Toshiki Takeuchi, Masahiro Sugimoto, Ippei Tsushima, Kohei Fukui, Masato Izumi, Ryosuke Sato, Kenji Sugiyama, Kengo Nieda, Kota Uchida, Yuichiro Yanagi, Yusuke Nakaya, Atsushi Sakamoto, Susumu Hirosawa, Takeshi Murase, Futoshi Hirose
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Publication number: 20180086048Abstract: Priority order is updated so that an ejection port that is selected as an ejection port subjected to ejection failure determination in a pixel row in which a previous ejection operation is to be performed has the lowest priority order, which is used for selecting an ejection port subjected to ejection failure determination, in a pixel row in which a subsequent ejection operation is to be performed.Type: ApplicationFiled: September 19, 2017Publication date: March 29, 2018Inventors: Satoshi Kitai, Kouichi Serizawa, Masahiko Umezawa, Atsushi Takahashi, Shinsuke Ikegami, Takeshi Murase, Masashi Hayashi, Yuki Sawai
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Publication number: 20170274647Abstract: In order to keep possible local temperature differences in a liquid ejection head small to allow stable liquid ejection performance to be achieved, temperatures in a plurality of heating areas in a liquid ejection head are discretely controlled using heating elements and temperature detection elements.Type: ApplicationFiled: March 15, 2017Publication date: September 28, 2017Inventors: Takatsuna Aoki, Shuzo Iwanaga, Seiichiro Karita, Kazuhiro Yamada, Shingo Okushima, Zentaro Tamenaga, Akira Yamamoto, Tatsurou Mori, Noriyasu Nagai, Akio Saito, Masashi Hayashi, Takeshi Murase, Yuki Sawai
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Patent number: 9138991Abstract: One aspect of this invention is directed to suitable drive control in accordance with an output from the temperature sensor of a printhead. More specifically, a printing apparatus by using a printhead that includes heaters and a temperature sensor on a substrate and discharges ink by driving the heaters executes the following steps. First, when printing a test pattern by using a predetermined driving pulse in a maintenance mode, a detected temperature is stored as a reference temperature in a memory. Then, in a normal printing mode, the difference between a detected temperature and the stored reference temperature is calculated, and a driving pulse for driving the printhead is selected from a plurality of driving pulses based on the difference. The printhead is controlled to be driven using the selected driving pulse and print.Type: GrantFiled: June 7, 2013Date of Patent: September 22, 2015Assignee: Canon Kabushiki KaishaInventors: Takeshi Murase, Atsushi Sakamoto, Minoru Teshigawara, Kei Kosaka
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Patent number: 9085172Abstract: A first humidified gas is supplied through a first supply port to a sheet. A second humidified gas is supplied to a space where nozzles of an inkjet recording head are exposed through a second supply port located at a position closer to the recording heads than the first supply port, to increase atmosphere humidity in the space. The sheet portion having a moisture content increased by the humidification in advance is advanced into the space having the increased atmosphere humidity, to record on the sheet using the inkjet recording head. An amount of humidification with the first humidified gas is set according to at least one recording condition.Type: GrantFiled: December 30, 2014Date of Patent: July 21, 2015Assignee: CANON KABUSHIKI KAISHAInventors: Masao Kato, Kentarou Muro, Susumu Hirosawa, Yutaka Kano, Minoru Teshigawara, Yoshiaki Murayama, Shigeyasu Nagoshi, Minako Kato, Takeshi Murase, Satoshi Azuma
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Patent number: 9079421Abstract: To provide an inkjet printing apparatus that suppresses occurrence of image deterioration, such as a texture, a moire, and a streak in a printing result. In order for this to be achieved, a level is set up to a overlapping portion of a chip of a print head depending on dot impact accuracy, and a print data distribution rate of each chip in the overlapping portion is determined according to the level.Type: GrantFiled: December 9, 2010Date of Patent: July 14, 2015Assignee: CANON KABUSHIKI KAISHAInventors: Minako Kato, Yoshiaki Murayama, Satoshi Azuma, Yutaka Kano, Minoru Teshigawara, Takeshi Murase, Susumu Hirosawa, Kentarou Muro, Shigeyasu Nagoshi, Masao Kato
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Publication number: 20150151554Abstract: A first humidified gas is supplied through a first supply port to a sheet. A second humidified gas is supplied to a space where nozzles of an inkjet recording head are exposed through a second supply port located at a position closer to the recording heads than the first supply port, to increase atmosphere humidity in the space. The sheet portion having a moisture content increased by the humidification in advance is advanced into the space having the increased atmosphere humidity, to record on the sheet using the inkjet recording head. An amount of humidification with the first humidified gas is set according to at least one recording condition.Type: ApplicationFiled: December 30, 2014Publication date: June 4, 2015Inventors: Masao Kato, Kentarou Muro, Susumu Hirosawa, Yutaka Kano, Minoru Teshigawara, Yoshiaki Murayama, Shigeyasu Nagoshi, Minako Kato, Takeshi Murase, Satoshi Azuma
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Patent number: 9044952Abstract: 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 5, 2013Date of Patent: June 2, 2015Assignee: 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: 9039112Abstract: In a line-head type inkjet printing apparatus that ejects a plurality of types of inks, an inkjet printing apparatus is provided in which the change of its ejection properties different depending on the type of ink is prevented from occurring. The line-head type printing apparatus includes an acquisition unit that counts the ejection number of liquid from each of print heads in each of a plurality of print heads. Furthermore, the printing apparatus compares the ejection number of liquid from each of the print heads counted by the acquisition unit with a threshold value set for each of the print heads. The printing apparatus includes a change unit that can move a holder in the main scanning direction when the counted ejection number of liquid exceeds the threshold value set for the print head.Type: GrantFiled: December 9, 2010Date of Patent: May 26, 2015Assignee: CANON KABUSHIKI KAISHAInventors: Yoshiaki Murayama, Takeshi Murase, Masao Kato, Shigeyasu Nagoshi, Minoru Teshigawara, Minako Kato, Susumu Hirosawa, Yutaka Kano, Satoshi Azuma, Kentarou Muro
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Patent number: 9028029Abstract: 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: GrantFiled: May 8, 2014Date of Patent: May 12, 2015Assignee: 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: 8967751Abstract: When an image is recorded using a multichip recording head including a plurality of chips each having a plurality of nozzle arrays, a change in image density can occur due to a registration error between chips in an overlapping part where two chips are connected. To suppress the change in image density, input image data is distributed to two chips such that there are dots overlapping each other between the two chips in the overlapping part.Type: GrantFiled: December 3, 2010Date of Patent: March 3, 2015Assignee: Canon Kabushiki KaishaInventors: Satoshi Azuma, Yoshiaki Murayama, Shigeyasu Nagoshi, Minoru Teshigawara, Susumu Hirosawa, Yutaka Kano, Takeshi Murase, Kentarou Muro, Masao Kato, Minako Kato, Tomokazu Ishikawa, Fumitaka Goto, Mitsuhiro Ono, Akitoshi Yamada, Yugo Mochizuki
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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: 8931875Abstract: There is provided an inkjet printing apparatus which can output a stable image without density unevenness by performing appropriate drive control to print elements based upon an appropriate representative temperature of a chip whatever image data is printed on a print medium. For this purpose, detection temperatures of a plurality of temperature sensors are lined up in high temperature order, and coefficients by which the respective detection temperatures are multiplied, are determined to be associated with that order at the lining-up, determining a representative temperature by the weighted average method. The common drive pulse associated with to the individual chip based upon the representative temperature thus obtained, to be applied thereto. Thereby even if temperature variations of print elements on the chip exist, it is possible to appropriately control the entire chip in temperature.Type: GrantFiled: September 14, 2012Date of Patent: January 13, 2015Assignee: Canon Kabushiki KaishaInventors: Kei Kosaka, Minoru Teshigawara, Atsushi Sakamoto, Takeshi Murase, Yoshiyuki Honda
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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