Patents by Inventor Susumu Hirosawa
Susumu Hirosawa 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: 10611140Abstract: 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: GrantFiled: June 22, 2018Date of Patent: April 7, 2020Assignee: Canon Kabushiki KaishaInventors: 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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Patent number: 10603898Abstract: The method includes in order: forming an intermediate image by applying the aqueous ink to a transfer body; transferring the intermediate image by bringing the intermediate image into contact with the recording medium; and cleaning the transfer body by applying an aqueous cleaning liquid to the transfer body, and if necessary, further includes applying an aqueous reaction liquid containing a reactant which reacts with the aqueous ink to the transfer body, wherein at least one of the aqueous ink and the reaction liquid contains a resin particle (however, when not including the applying of the reaction liquid, the aqueous ink contains the resin particle), and the cleaning liquid contains a first water-soluble organic solvent having an SP value [unit: (J/cm3)1/2] of 17.0 or more to 29.0 or less.Type: GrantFiled: July 12, 2018Date of Patent: March 31, 2020Assignee: Canon Kabushiki KaishaInventors: Takashi Imai, Futoshi Hirose, Susumu Hirosawa, Atsushi Sakamoto
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Patent number: 10556448Abstract: When a porous body is repeatedly used to perform treatment of absorbing and removing an aqueous liquid component on an image which is formed using a reaction liquid and an ink and contains the aqueous liquid component and a coloring material, recovery treatment for applying a recovery liquid to the porous body is performed, the recovery liquid having a viscosity lower than a viscosity of the reaction liquid and the ink.Type: GrantFiled: July 3, 2018Date of Patent: February 11, 2020Assignee: Canon Kabushiki KaishaInventors: Toru Ohnishi, Toru Yamane, Kyosuke Deguchi, Ryosuke Hirokawa, Akihiro Mouri, Noboru Toyama, Atsushi Sakamoto, Susumu Hirosawa, Toshimori Miyakoshi, Hiroaki Motooka, Ryohei Goto
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Patent number: 10549528Abstract: According to an embodiment of this invention, a printing apparatus capable of cleaning a transfer member continuously while downsizing the apparatus and a cleaning method of the same are provided. The printing apparatus includes a cleaning roller configured to apply a cleaning liquid to the transfer member while rotating in contact with the transfer member, a liquid tank configured to reserve the cleaning liquid so that a part of the cleaning roller is immersed in the cleaning liquid, and a removal unit configured to remove a blot by contacting the surface of the cleaning roller which rotates in the liquid tank.Type: GrantFiled: July 9, 2018Date of Patent: February 4, 2020Assignee: Canon Kabushiki KaishaInventors: Kenji Sugiyama, Toshiki Takeuchi, Masato Izumi, Kengo Nieda, Ippei Tsushima, Atsushi Sakamoto, Futoshi Hirose, Susumu Hirosawa
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Patent number: 10543679Abstract: A liquid holding amount of a porous body of a liquid absorbing member for removing at least a portion of an aqueous liquid component from an image obtained by ink jet printing is controlled so as to reduce damage to the porous body while maintaining performance of removing attached matters from the porous body by using a cleaning member which abuts on the porous body and has an adhesive force.Type: GrantFiled: July 23, 2018Date of Patent: January 28, 2020Assignee: Canon Kabushiki KaishaInventors: Satoshi Masuda, Toru Yamane, Kyosuke Deguchi, Ryosuke Hirokawa, Toru Ohnishi, Akihiro Mouri, Noboru Toyama, Atsushi Sakamoto, Yoshiyuki Honda, Taku Higashiyama, Susumu Hirosawa
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Patent number: 10486417Abstract: A printing apparatus includes a transfer member that rotates, a printhead that forms an image on the transfer member, and a transfer unit that transfers the image to a print medium. An application unit, provided at a downstream side of an area, at which the transfer unit transfers the image to the print medium, in a rotation direction of the transfer member, applies a cleaning liquid to a region on the transfer member after the image is transferred to the print medium. In addition, a collecting unit, provided between the printhead and the application unit, in the rotation direction of the transfer member, includes a collection roller that rotates in contact with the transfer member, in a direction opposite to the rotation direction of the transfer member, for collecting the cleaning liquid applied to the transfer member by the application unit.Type: GrantFiled: July 3, 2018Date of Patent: November 26, 2019Assignee: Canon Kabushiki KaishaInventors: Ippei Tsushima, Ryosuke Sato, Yusuke Nakaya, Toshiki Takeuchi, Kengo Nieda, Kenji Sugiyama, Futoshi Hirose, Atsushi Sakamoto, Susumu Hirosawa
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Publication number: 20190016112Abstract: According to an embodiment of the present invention, a printing apparatus capable of collecting a liquid applied to a transfer member efficiently and maintaining the state of the transfer member satisfactorily is provided. More specifically, an inkjet printing apparatus of an intermediate transfer type using a transfer member includes two supplying rollers each applying a liquid to a region on the transfer member after an image is transferred to a print medium, and a collection roller that rotates in contact with the transfer member and collects the applied liquid.Type: ApplicationFiled: July 3, 2018Publication date: January 17, 2019Inventors: Ippei Tsushima, Ryosuke Sato, Yusuke Nakaya, Toshiki Takeuchi, Kengo Nieda, Kenji Sugiyama, Futoshi Hirose, Atsushi Sakamoto, Susumu Hirosawa
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Publication number: 20190016114Abstract: According to an embodiment of this invention, a printing apparatus capable of cleaning a transfer member continuously while downsizing the apparatus and a cleaning method of the same are provided. The printing apparatus includes a cleaning roller configured to apply a cleaning liquid to the transfer member while rotating in contact with the transfer member, a liquid tank configured to reserve the cleaning liquid so that a part of the cleaning roller is immersed in the cleaning liquid, and a removal unit configured to remove a blot by contacting the surface of the cleaning roller which rotates in the liquid tank.Type: ApplicationFiled: July 9, 2018Publication date: January 17, 2019Inventors: Kenji Sugiyama, Toshiki Takeuchi, Masato Izumi, Kengo Nieda, Ippei Tsushima, Atsushi Sakamoto, Futoshi Hirose, Susumu Hirosawa
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Publication number: 20190016116Abstract: The method includes in order: forming an intermediate image by applying the aqueous ink to a transfer body; transferring the intermediate image by bringing the intermediate image into contact with the recording medium; and cleaning the transfer body by applying an aqueous cleaning liquid to the transfer body, and if necessary, further includes applying an aqueous reaction liquid containing a reactant which reacts with the aqueous ink to the transfer body, wherein at least one of the aqueous ink and the reaction liquid contains a resin particle (however, when not including the applying of the reaction liquid, the aqueous ink contains the resin particle), and the cleaning liquid contains a first water-soluble organic solvent having an SP value [unit: (J/cm3)1/2] of 17.0 or more to 29.0 or less.Type: ApplicationFiled: July 12, 2018Publication date: January 17, 2019Inventors: Takashi Imai, Futoshi Hirose, Susumu Hirosawa, Atsushi Sakamoto
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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: 20180326755Abstract: When a porous body is repeatedly used to perform treatment of absorbing and removing an aqueous liquid component on an image which is formed using a reaction liquid and an ink and contains the aqueous liquid component and a coloring material, recovery treatment for applying a recovery liquid to the porous body is performed, the recovery liquid having a viscosity lower than a viscosity of the reaction liquid and the ink.Type: ApplicationFiled: July 3, 2018Publication date: November 15, 2018Inventors: Toru Ohnishi, Toru Yamane, Kyosuke Deguchi, Ryosuke Hirokawa, Akihiro Mouri, Noboru Toyama, Atsushi Sakamoto, Susumu Hirosawa, Toshimori Miyakoshi, Hiroaki Motooka, Ryohei Goto
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Publication number: 20180326719Abstract: A liquid holding amount of a porous body of a liquid absorbing member for removing at least a portion of an aqueous liquid component from an image obtained by ink jet printing is controlled so as to reduce damage to the porous body while maintaining performance of removing attached matters from the porous body by using a cleaning member which abuts on the porous body and has an adhesive force.Type: ApplicationFiled: July 23, 2018Publication date: November 15, 2018Inventors: Satoshi Masuda, Toru Yamane, Kyosuke Deguchi, Ryosuke Hirokawa, Toru Ohnishi, Akihiro Mouri, Noboru Toyama, Atsushi Sakamoto, Yoshiyuki Honda, Taku Higashiyama, Susumu Hirosawa
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Patent number: 9987848Abstract: An ink jet recording apparatus includes a recording head having a nozzle arrangement region in which a plurality of nozzles for discharging ink is arranged, and a cleaning unit configured to perform cleaning operation on the recording head. A control unit is configured to control the cleaning unit and a change operation for changing relative position relation between a region where the record medium passes and the nozzle arrangement region. The control unit acquires end passage positions in a first recording operation before the change operation is performed, and a passage region in a second recording operation after the change operation is performed. The control unit performs control for executing the cleaning operation in a case where the end passage position is included in the passage region.Type: GrantFiled: June 19, 2017Date of Patent: June 5, 2018Assignee: CANON KABUSHIKI KAISHAInventors: Susumu Hirosawa, Minoru Teshigawara, Atsushi Sakamoto, Yoshiaki Murayama, Takatoshi Nakano, Takahide Takeishi
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Publication number: 20180001644Abstract: An ink jet recording apparatus includes a recording head having a nozzle arrangement region in which a plurality of nozzles for discharging ink is arranged, and a cleaning unit configured to perform cleaning operation on the recording head. A control unit is configured to control the cleaning unit and a change operation for changing relative position relation between a region where the record medium passes and the nozzle arrangement region. The control unit acquires end passage positions in a first recording operation before the change operation is performed, and a passage region in a second recording operation after the change operation is performed. The control unit performs control for executing the cleaning operation in a case where the end passage position is included in the passage region.Type: ApplicationFiled: June 19, 2017Publication date: January 4, 2018Inventors: Susumu Hirosawa, Minoru Teshigawara, Atsushi Sakamoto, Yoshiaki Murayama, Takatoshi Nakano, Takahide Takeishi
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Patent number: 9457590Abstract: There are provided a printing apparatus, a method for controlling the printing apparatus, and a storage medium. The printing apparatus includes a conveying unit that conveys a print medium; a print head that applies a color material on the print medium; an obtaining unit configured to obtain, in the case where a first surface of the print medium on which a first image is printed comes in contact with the conveying unit, information on a printing condition of the first surface that becomes a factor of changing a conveying speed of the print medium in the predetermined direction; and a control unit configured to control timing of applying a color material on a second surface of the print medium that is a surface at the opposite to the first surface according to the printing condition indicated by the information obtained by the obtaining unit.Type: GrantFiled: March 24, 2015Date of Patent: October 4, 2016Assignee: Canon Kabushiki KaishaInventors: Kazuya Koizumi, Yasutaka Mitani, Yosuke Ushigome, Yoshiaki Kaburagi, Takayuki Tanabe, Atsushi Takahashi, Yusuke Kadokura, Keiji Harada, Yoshiaki Takayanagi, Hideo Horigome, Susumu Hirosawa, Atsushi Sakamoto, Satoshi Masuda, Toshiki Takeuchi, Kengo Nieda
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Patent number: 9393790Abstract: In the case of printing a test pattern with an inkjet print apparatus, two printing modes are prepared. In one printing mode, a preliminary ejection on the printing medium is performed during printing of a test pattern, and in the other printing mode, the preliminary ejection on the printing medium is not performed during printing of a test pattern. For a test pattern that is, if the test pattern is printed under the same condition as that for an actual image, convenient for a subsequent correction, the preliminary ejection on the printing medium is performed during printing of the test pattern. On the other hand, for a test pattern in which, if an irrelevant dot is printed within the pattern, inconvenience is taken into consideration in a subsequent correction, the preliminary ejection on the printing medium is not performed during printing of the test pattern.Type: GrantFiled: December 9, 2010Date of Patent: July 19, 2016Assignee: Canon Kabushiki KaishaInventors: Yutaka Kano, Susumu Hirosawa, Kentarou Muro
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Patent number: 9321271Abstract: The invention provides a printing apparatus and a recovery method therefore which can minimize ink consumption in a recovery process for a print head of the apparatus. The invention has a control unit to cause a print head to eject ink from nozzles arrayed on the print head so as to recover ink ejecting function of the nozzles, and a specification unit to specify a set print mode selected from among a plurality of print modes. The print modes define number and position of nozzles in use for printing an image. The control unit executes a first preliminary ejection process before or after printing an image on a print medium. The first preliminary ejection process has selectively ejecting ink from both of the nozzles in use selected by the currently set print mode and the unused nozzles in the vicinity of the nozzles in use.Type: GrantFiled: February 3, 2012Date of Patent: April 26, 2016Assignee: CANON KABUSHIKI KAISHAInventors: Hidehiko Kanda, Susumu Hirosawa, Yutaka Kano, Kentarou Muro
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Patent number: 9242470Abstract: An apparatus includes a recording head arranged so as to oppose a sheet moving in a first direction, in which a plurality of first nozzle chips and a plurality of second nozzle chips each having a nozzle array are arranged as different arrays in a second direction crossing the first direction, and in which the first nozzle chips and the second nozzle chips adjacent to each other are shifted from each other in the second direction, a first suction unit opposed to the first nozzle chips and configured to suction ink from a part of the nozzle arrays included in the first nozzle chips, a second suction unit opposed to the second nozzle chips and configured to suction ink from a part of the nozzle arrays included in the second nozzle chips, a suction holder configured to retain the first suction unit and the second suction unit, and a movement mechanism configured to cause relative movement between the recording head and the suction holder in the second direction, wherein the first suction unit and the second suctType: GrantFiled: November 15, 2010Date of Patent: January 26, 2016Assignee: Canon Kabushiki KaishaInventors: Seiji Suzuki, Yuji Kanome, Hiroyuki Tanaka, Yoshiaki Suzuki, Masahiro Sugimoto, Susumu Hirosawa, Takeaki Nakano
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Publication number: 20150273896Abstract: There are provided a printing apparatus, a method for controlling the printing apparatus, and a storage medium. The printing apparatus includes a conveying unit conveys a print medium; a print head applies a color material on the print medium; an obtaining unit configured to obtain, in the case where a first surface of the print medium on which a first image is printed comes in contact with the conveying unit, information on a printing condition of the first surface that becomes a factor of changing a conveying speed of the print medium in the predetermined direction; and a control unit configured to control timing of applying a color material on a second surface of the print medium that is a surface at the opposite to the first surface according to the printing condition indicated by the information obtained by the obtaining unit.Type: ApplicationFiled: March 24, 2015Publication date: October 1, 2015Inventors: Kazuya KOIZUMI, Yasutaka Mitani, Yosuke Ushigome, Yoshiaki Kaburagi, Takayuki Tanabe, Atsushi Takahashi, Yusuke Kadokura, Keiji Harada, Yoshiaki Takayanagi, Hideo Horigome, Susumu Hirosawa, Atsushi Sakamoto, Satoshi Masuda, Toshiki Takeuchi, Kengo Nieda
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Patent number: 9096065Abstract: To provide an ink jet printing apparatus which can reduce waste ink as much as possible and shorten the amount of time spend on the following wiping process, and a recovery operation method therefor, whereby a first process and a second process are carried out, the first process for discharging ink that does not contribute to the printing from the print head while supplying ink from the ink reservoir portion to the print head by way of the first ink passage connected to one end of the print head, and the second process for discharging ink that does not contribute to the printing from the print head while supplying ink from the ink reservoir portion to the print head by way of the second ink passage connected to the other end of the print head.Type: GrantFiled: March 7, 2013Date of Patent: August 4, 2015Assignee: CANON KABUSHIKI KAISHAInventors: Takatoshi Nakano, Minoru Teshigawara, Susumu Hirosawa, Seiji Suzuki, Kentarou Muro