Patents by Inventor Jumpei Jogo
Jumpei Jogo 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: 20230150270Abstract: A printing apparatus performs control so that out of N scans for printing an image in a predetermined region on a print medium, a total application amount of a reactive liquid printed by first N/2 scans and a total application amount of the reactive liquid printed by second N/2 scans may be different between a case where an application amount of the reactive liquid per unit area which corresponds to the predetermined region is a first amount and a case where the application amount of the reactive liquid per unit area is a second amount larger than the first amount.Type: ApplicationFiled: November 7, 2022Publication date: May 18, 2023Inventors: Naoko Baba, Satoshi Wada, Yoshitomo Marumoto, Yuji Konno, Takeshi Yazawa, Shin Genta, Shingo Nishioka, Jumpei Jogo, Takayuki Ushiyama, Keiji Kuriyama, Serena Yoshikawa, Taichi Yokokawa, Yumi Shimokodachi
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Publication number: 20230150271Abstract: A printing control apparatus includes a control unit configured to perform control so that a distribution ratio based on which color separation data separated as having a predetermined color is distributed into data for a first nozzle array and a distribution ratio based on which color separation data is distributed into data for a second nozzle array are different depending on a tone value in the color separation data, and a generation unit configured to generate printing data to be used for printing by the first nozzle array based on the distributed data for the first nozzle array and generate printing data to be used for printing by the second nozzle array based on the distributed data for the second nozzle array.Type: ApplicationFiled: November 7, 2022Publication date: May 18, 2023Inventors: Shin Genta, Yuji Konno, Yoshitomo Marumoto, Naoko Baba, Jumpei Jogo, Takayuki Ushiyama, Yumi Shimokodachi, Taichi Yokokawa, Serena Yoshikawa
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Publication number: 20230086371Abstract: A recording apparatus that causes less degradation of image quality due to blurring caused by dot misalignment between an ink containing a coloring material and a reaction liquid includes a recording unit configured to record an image on a recording medium by applying an ink containing a coloring material and a reaction liquid containing a component that aggregates the coloring material, an acquisition unit configured to acquire multi-valued ink data to apply the ink, and a generating unit configured to generate first multi-valued reaction liquid data based on the multi-valued ink data and, when a tone value of a pixel of interest in the first multi-valued reaction liquid data is lower than a tone value of any one of a plurality of surrounding pixels around the pixel of interest, generate second multi-valued reaction liquid data by increasing the tone value of the pixel of interest.Type: ApplicationFiled: September 16, 2022Publication date: March 23, 2023Inventors: Jumpei Jogo, Naoko Baba, Yuji Konno, Yoshitomo Marumoto, Shin Genta, Takayuki Ushiyama, Yumi Shimokodachi, Serena Yoshikawa, Taichi Yokokawa
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Patent number: 8967768Abstract: An inkjet printing apparatus and an inkjet printing method are realized which can improve a print quality while minimizing the volume of waste ink, running cost and throughput degradations. For this purpose, the scan width is set according to the size and position of the print medium and then, based on that scan width, a location where the preliminary ejections are to be executed and the number of times that the preliminary ejection is to be executed in a single preliminary ejection session are determined.Type: GrantFiled: October 24, 2012Date of Patent: March 3, 2015Assignee: Canon Kabushiki KaishaInventors: Jumpei Jogo, Masaki Nitta, Satoshi Hayashi, Yuhei Oikawa, Joji Katsuura, Kosuke Matsushita
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Patent number: 8702192Abstract: This invention prevents a possible color mixing, that may occur more than a predetermined time after the wiping operation, by executing a pre-printing cleaning ejection while at the same time minimizing the amount of waste ink produced by the cleaning ejection. To this end, if a color mixing is determined as being likely to occur an elapsed time after the previous wiping operation, the pre-printing cleaning ejection uses a second ink volume U, which represents both the color mixing elimination ink volume and the ejection failure elimination ink volume. If it is decided that there is no likelihood of the color mixing occurring the elapsed time after the wiping operation, the pre-printing cleaning ejection uses the first ink volume D which represents only the ejection failure elimination ink volume.Type: GrantFiled: July 22, 2011Date of Patent: April 22, 2014Assignee: Canon Kabushiki KaishaInventors: Toshimitsu Danzuka, Kazuo Suzuki, Yutaka Kawamata, Masataka Kato, Asako Tomida, Jumpei Jogo, Hiroaki Komatsu
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Patent number: 8613492Abstract: In an inkjet apparatus using an inkjet head ejecting multiple types of inks different in viscosity after evaporation of solvent, a replacement timing for a component is judged by using a consumption amount of each type of ink and a generation rate in amount of ink droplets. Accordingly, in the case of using a large amount of ink strongly susceptible to fixed adhesion and increase in viscosity, the component is replaced at an earlier timing, which prevents fixed adhesion from influencing the print performance and the printing apparatus main body. By contrast, in the case of using a large amount of ink less susceptible to fixed adhesion and increase in viscosity, the component is replaced at a later timing and thus can be used until reaching its lifetime.Type: GrantFiled: June 15, 2011Date of Patent: December 24, 2013Assignee: Canon Kabushiki KaishaInventors: Kazuo Suzuki, Yutaka Kawamata, Toshimitsu Danzuka, Masataka Kato, Asako Tomida, Jumpei Jogo, Hiroaki Komatsu
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Patent number: 8469484Abstract: In an inkjet apparatus capable of ejecting an ink and a treatment liquid for insolubilizing or coagulating a color material in the ink, a replacement timing for a component of the apparatus is judged based on both the consumption amounts of the ink and treatment liquid measured when the two are consumed together and the consumption amount of the ink measured when the ink is consumed alone. Thus, the component is replaced at an earlier timing when the influence of fixed adhesion is great due to frequent ejection of both of the ink and treatment liquid, which prevents fixed adhesion from influencing the print performance and the printing apparatus main body. By contrast, when the fixed adhesion slowly develops because of less-frequent ejection of both of the ink and treatment liquid, the component is replaced at a later timing and thus can be used until reaching its lifetime.Type: GrantFiled: June 16, 2011Date of Patent: June 25, 2013Assignee: Canon Kabushiki KaishaInventors: Jumpei Jogo, Yutaka Kawamata, Kazuo Suzuki, Toshimitsu Danzuka, Masataka Kato, Asako Tomida, Hiroaki Komatsu
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Patent number: 8317287Abstract: An inkjet printing apparatus and an inkjet printing method are realized which can improve a print quality while minimizing the volume of waste ink, running cost and throughput degradations. For this purpose, the scan width is set according to the size and position of the print medium and then, based on that scan width, a location where the preliminary ejections are to be executed and the number of times that the preliminary ejection is to be executed in a single preliminary ejection session are determined.Type: GrantFiled: March 11, 2010Date of Patent: November 27, 2012Assignee: Canon Kabushiki KaishaInventors: Jumpei Jogo, Masaki Nitta, Satoshi Hayashi, Yuhei Oikawa, Joji Katsuura, Kosuke Matsushita
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Publication number: 20120026230Abstract: This invention prevents a possible color mixing, that may occur more than a predetermined time after the wiping operation, by executing a pre-printing cleaning ejection while at the same time minimizing the amount of waste ink produced by the cleaning ejection. To this end, if a color mixing is determined as being likely to occur an elapsed time after the previous wiping operation, the pre-printing cleaning ejection uses a second ink volume U, which represents both the color mixing elimination ink volume and the ejection failure elimination ink volume. If it is decided that there is no likelihood of the color mixing occurring the elapsed time after the wiping operation, the pre-printing cleaning ejection uses the first ink volume D which represents only the ejection failure elimination ink volume.Type: ApplicationFiled: July 22, 2011Publication date: February 2, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Toshimitsu Danzuka, Kazuo Suzuki, Yutaka Kawamata, Masataka Kato, Asako Tomida, Jumpei Jogo, Hiroaki Komatsu
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Publication number: 20110310159Abstract: In an inkjet apparatus using an inkjet head ejecting multiple types of inks different in viscosity after evaporation of solvent, a replacement timing for a component is judged by using a consumption amount of each type of ink and a generation rate in amount of ink droplets. Accordingly, in the case of using a large amount of ink strongly susceptible to fixed adhesion and increase in viscosity, the component is replaced at an earlier timing, which prevents fixed adhesion from influencing the print performance and the printing apparatus main body. By contrast, in the case of using a large amount of ink less susceptible to fixed adhesion and increase in viscosity, the component is replaced at a later timing and thus can be used until reaching its lifetime.Type: ApplicationFiled: June 15, 2011Publication date: December 22, 2011Applicant: CANON KABUSHIKI KAISHAInventors: Kazuo Suzuki, Yutaka Kawamata, Toshimitsu Danzuka, Masataka Kato, Asako Tomida, Jumpei Jogo, Hiroaki Komatsu
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Publication number: 20110310160Abstract: In an inkjet apparatus capable of ejecting an ink and a treatment liquid for insolubilizing or coagulating a color material in the ink, a replacement timing for a component of the apparatus is judged based on both the consumption amounts of the ink and treatment liquid measured when the two are consumed together and the consumption amount of the ink measured when the ink is consumed alone. Thus, the component is replaced at an earlier timing when the influence of fixed adhesion is great due to frequent ejection of both of the ink and treatment liquid, which prevents fixed adhesion from influencing the print performance and the printing apparatus main body. By contrast, when the fixed adhesion slowly develops because of less-frequent ejection of both of the ink and treatment liquid, the component is replaced at a later timing and thus can be used until reaching its lifetime.Type: ApplicationFiled: June 16, 2011Publication date: December 22, 2011Applicant: CANON KABUSHIKI KAISHAInventors: Jumpei Jogo, Yutaka Kawamata, Kazuo Suzuki, Toshimitsu Danzuka, Masataka Kato, Asako Tomida, Hiroaki Komatsu
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Publication number: 20110057973Abstract: The present invention provides an ink jet printing apparatus and an ink jet printing method in which even with a variation in ink ejection amount depending on an image print area, the ink ejection amount for preliminary ejection can be optimally set. For this purpose, a print area is divided into a plurality of areas, and the number of ink ejections through a nozzle is measured for each of the areas. Based on the number of ink ejections for each area, the number of ink ejections for the preliminary ejection is determined.Type: ApplicationFiled: August 25, 2010Publication date: March 10, 2011Applicant: CANON KABUSHIKI KAISHAInventors: Joji Katsuura, Masaki Nitta, Yuhei Oikawa, Satoshi Hayashi, Kosuke Matsushita, Jumpei Jogo
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Publication number: 20100238222Abstract: An inkjet printing apparatus and an inkjet printing method are realized which can improve a print quality while minimizing the volume of waste ink, running cost and throughput degradations. For this purpose, the scan width is set according to the size and position of the print medium and then, based on that scan width, a location where the preliminary ejections are to be executed and the number of times that the preliminary ejection is to be executed in a single preliminary ejection session are determined.Type: ApplicationFiled: March 11, 2010Publication date: September 23, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Jumpei Jogo, Masaki Nitta, Satoshi Hayashi, Yuhei Oikawa, Joji Katsuura, Kosuke Matsushita