Patents by Inventor Eisuke Nishitani
Eisuke Nishitani 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: 10308043Abstract: Provided is a highly reliable ink jet recording apparatus capable of preventing the occurrence of image defects. The ink jet recording apparatus includes a liquid absorbing device including a porous body configured to absorb/remove an aqueous liquid component from an image containing the aqueous liquid component and a coloring material, a heat drying device configured to perform a heat drying treatment of the image after being subjected to the liquid absorption treatment, a temperature measuring device configured to measure the temperature of the image after being subjected to the heat drying treatment with the heat drying device, and a determination unit configured to determine the state of the liquid absorbing device from the measured temperature.Type: GrantFiled: February 6, 2018Date of Patent: June 4, 2019Assignee: Canon Kabushiki KaishaInventors: Eisuke Nishitani, Takao Ogata, Akira Morita, Takumi Otani, Toshimori Miyakoshi
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Publication number: 20190126654Abstract: A printing mode for performing printing to a printing medium and a determination mode for determining the application amount of a reaction liquid to a discharge medium can be performed. In the determination mode, a reaction liquid application unit forms a layer of the reaction liquid on the discharge medium, and then an ink application unit applies an ink onto a part of the layer to form a test pattern to be utilized for the determination. In the formation of the test pattern, an image to be formed by the ink by the aggregation of a solid content in the applied ink partially moves and shrinks on the layer of the reaction liquid to be thereby deformed with a grade according to the applied reaction liquid.Type: ApplicationFiled: October 19, 2018Publication date: May 2, 2019Inventors: Eisuke Nishitani, Masaki Nitta, Yoshiaki Murayama, Keiichirou Takeuchi, Rinako Kameshima
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Publication number: 20190084301Abstract: Provided is a liquid ejection head comprising: an ejection opening row along a first direction; a pressure chamber with print-element; a passage communicating with the pressure chamber; a supply opening row along the first direction with supply openings extending in a second direction to supply liquid to the passage; a collection opening row along the first direction with collection openings extending in the second direction to collect a liquid from the passage; a first common supply passage along the first direction to supply a liquid to the supply opening row; a first common collection passage along the first direction to collect a liquid from the collection opening row; a first supply side communication opening extending in the second direction to supply a liquid to the first common supply passage; and a first collection side communication opening extending in the second direction to collect a liquid from the first common collection passage, wherein at least one of the first supply side communication openiType: ApplicationFiled: November 19, 2018Publication date: March 21, 2019Inventors: Shingo Okushima, Seiichiro Karita, Takatsuna Aoki, Noriyasu Nagai, Eisuke Nishitani, Yumi Komamiya
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Publication number: 20190047287Abstract: Provided is a liquid ejection head comprising: an ejection opening row along a first direction; a pressure chamber with print-element; a passage communicating with the pressure chamber; a supply opening row along the first direction with supply openings extending in a second direction to supply liquid to the passage; a collection opening row along the first direction with collection openings extending in the second direction to collect a liquid from the passage; a first common supply passage along the first direction to supply a liquid to the supply opening row; a first common collection passage along the first direction to collect a liquid from the collection opening row; a first supply side communication opening extending in the second direction to supply a liquid to the first common supply passage; and a first collection side communication opening extending in the second direction to collect a liquid from the first common collection passage, wherein at least one of the first supply side communication openiType: ApplicationFiled: October 11, 2018Publication date: February 14, 2019Inventors: Shingo Okushima, Seiichiro Karita, Takatsuna Aoki, Noriyasu Nagai, Eisuke Nishitani, Yumi Komamiya
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Patent number: 10201980Abstract: A liquid discharge head includes discharge orifices, recording elements that generate energy, supply channels that supply liquid to the recording elements, a common supply channel communicating with the supply channels, recovery channels that recover liquid supplied to the recording elements, a common recovery channel that recovers liquid from the recovery channels, a first inlet port that supplies liquid to the common supply channel, a first recovery port that recovers liquid from the first common supply channel, a second inlet port that supplies liquid to the common recovery channel, and a second recovery port that recovers liquid from the second common recovery channel. The first inlet port and the first recovery port communicate without going through channel portions where recording elements are disposed, and the second inlet port and the second recovery port communicate without going through channel portions where recording elements are disposed.Type: GrantFiled: February 5, 2018Date of Patent: February 12, 2019Assignee: Canon Kabushiki KaishaInventors: Takatsuna Aoki, Seiichiro Karita, Shingo Okushima, Eisuke Nishitani, Yumi Komamiya, Kazuhiro Yamada, Zentaro Tamenaga, Noriyasu Nagai, Tatsurou Mori, Shuzo Iwanaga, Akio Saito, Akira Yamamoto
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Patent number: 10179453Abstract: Provided is a liquid ejection head comprising: an ejection opening row along a first direction; a pressure chamber with print-element; a passage communicating with the pressure chamber; a supply opening row along the first direction with supply openings extending in a second direction to supply liquid to the passage; a collection opening row along the first direction with collection openings extending in the second direction to collect a liquid from the passage; a first common supply passage along the first direction to supply a liquid to the supply opening row; a first common collection passage along the first direction to collect a liquid from the collection opening row; a first supply side communication opening extending in the second direction to supply a liquid to the first common supply passage; and a first collection side communication opening extending in the second direction to collect a liquid from the first common collection passage, wherein at least one of the first supply side communication openiType: GrantFiled: December 19, 2016Date of Patent: January 15, 2019Assignee: Canon Kabushiki KaishaInventors: Shingo Okushima, Seiichiro Karita, Takatsuna Aoki, Noriyasu Nagai, Eisuke Nishitani, Yumi Komamiya
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Publication number: 20190009521Abstract: A printing apparatus having an ink application unit applying a first ink containing at least resin as a solid content onto a discharge medium, a reaction liquid application unit applying a reaction liquid reacting with a component in the ink to aggregate the solid content in the first ink onto the discharge medium, and a liquid absorbing unit for bringing a liquid absorbing member of a porous body into contact with an ink image formed by the ink and the reaction liquid on the discharge medium to absorb liquid to thereby reduce the amount of the liquid in the ink image, in which a layer is formed with the first ink and the reaction liquid on the discharge medium, and then a test pattern utilized for detection is printed by applying a second ink different from the first ink to a part of the layer by the ink application unit.Type: ApplicationFiled: June 28, 2018Publication date: January 10, 2019Inventors: Eisuke Nishitani, Masaki Nitta, Yoshiaki Murayama, Keiichirou Takeuchi, Rinako Kameshima
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Publication number: 20190009518Abstract: An ink jet recording apparatus of the present invention includes an image forming unit which forms an ink image by discharging and applying ink containing at least a resin and a liquid component as an ink droplet onto a transfer body, a liquid removing unit which removes the liquid component in the ink image, a transfer unit which transfers removes the image, from which the liquid component is removed, onto a recording medium, a fixing unit which performs heating and pressing fixing on the image formed on the recording medium by pressing a fixing substrate, a liquid adhesion determination unit which determines whether a liquid adheres to a surface of the fixing substrate, and a liquid removing condition changing unit which changes a liquid removing condition of the liquid removing unit based on the determination result of the liquid adhesion determination unit.Type: ApplicationFiled: June 28, 2018Publication date: January 10, 2019Inventors: Eisuke Nishitani, Keiichirou Takeuchi, Akira Morita, Kanako Soma, Takumi Otani, Fumihiro Goto, Koichiro Nakazawa
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Publication number: 20180361731Abstract: A recording apparatus includes an ink application unit configured to apply ink to a transfer body, a first application unit configured to apply a first treatment liquid over an area on the transfer body, a second application unit configured to apply a second treatment liquid to the transfer body, a heating unit configured to heat the second treatment liquid applied to the transfer body, and a transfer unit configured to transfer the ink image, wherein a ratio of the second treatment liquid to the first treatment liquid on an outside of ink portion is determined according to the recording medium.Type: ApplicationFiled: June 11, 2018Publication date: December 20, 2018Inventors: Rinako Kameshima, Minoru Teshigawara, Yoshiaki Murayama, Masaki Nitta, Eisuke Nishitani, Keiichirou Takeuchi
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Patent number: 10131146Abstract: Provided is a liquid ejection head comprising: an ejection opening row along a first direction; a pressure chamber with print-element; a passage communicating with the pressure chamber; a supply opening row along the first direction with supply openings extending in a second direction to supply liquid to the passage; a collection opening row along the first direction with collection openings extending in the second direction to collect a liquid from the passage; a first common supply passage along the first direction to supply a liquid to the supply opening row; a first common collection passage along the first direction to collect a liquid from the collection opening row; a first supply side communication opening extending in the second direction to supply a liquid to the first common supply passage; and a first collection side communication opening extending in the second direction to collect a liquid from the first common collection passage, wherein at least one of the first supply side communication openiType: GrantFiled: December 19, 2016Date of Patent: November 20, 2018Assignee: Canon Kabushiki KaishaInventors: Shingo Okushima, Seiichiro Karita, Takatsuna Aoki, Noriyasu Nagai, Eisuke Nishitani, Yumi Komamiya
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Publication number: 20180272718Abstract: A liquid ejection head includes an ejection opening; a passage in which an energy generation element is disposed; an ejection opening portion that allows communication between the ejection opening and the passage; a supply passage for allowing the liquid to flow into the passage; and an outflow passage for allowing the liquid to flow out to the outside. An expression of H?0.34×P?0.66×W>1.7 is satisfied when a height of the passage is set to H, a length of the ejection opening portion is set to P, and a length of the ejection opening portion is set to W.Type: ApplicationFiled: May 29, 2018Publication date: September 27, 2018Inventors: Shingo Okushima, Seiichiro Karita, Takatsuna Aoki, Noriyasu Nagai, Eisuke Nishitani, Yoshiyuki Nakagawa
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Patent number: 10040290Abstract: A liquid ejection head includes an ejection opening; a passage in which an energy generation element is disposed; an ejection opening portion that allows communication between the ejection opening and the passage; a supply passage for allowing the liquid to flow into the passage; and an outflow passage for allowing the liquid to flow out to the outside. An expression of H?0.34×P?0.66×W>1.7 is satisfied when a height of the passage is set to H, a length of the ejection opening portion is set to P, and a length of the ejection opening portion is set to W.Type: GrantFiled: December 22, 2016Date of Patent: August 7, 2018Assignee: Canon Kabushiki KaishaInventors: Shingo Okushima, Seiichiro Karita, Takatsuna Aoki, Noriyasu Nagai, Eisuke Nishitani, Yoshiyuki Nakagawa
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Publication number: 20180178552Abstract: Provided is a highly reliable ink jet recording apparatus capable of preventing the occurrence of image defects. The ink jet recording apparatus includes a liquid absorbing device including a porous body configured to absorb/remove an aqueous liquid component from an image containing the aqueous liquid component and a coloring material, a heat drying device configured to perform a heat drying treatment of the image after being subjected to the liquid absorption treatment, a temperature measuring device configured to measure the temperature of the image after being subjected to the heat drying treatment with the heat drying device, and a determination unit configured to determine the state of the liquid absorbing device from the measured temperature.Type: ApplicationFiled: February 6, 2018Publication date: June 28, 2018Inventors: Eisuke Nishitani, Takao Ogata, Akira Morita, Takumi Otani, Toshimori Miyakoshi
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Publication number: 20180154650Abstract: A liquid discharge head includes discharge orifices, recording elements that generate energy, supply channels that supply liquid to the recording elements, a common supply channel communicating with the supply channels, recovery channels that recover liquid supplied to the recording elements, a common recovery channel that recovers liquid from the recovery channels, a first inlet port that supplies liquid to the common supply channel, a first recovery port that recovers liquid from the first common supply channel, a second inlet port that supplies liquid to the common recovery channel, and a second recovery port that recovers liquid from the second common recovery channel. The first inlet port and the first recovery port communicate without going through channel portions where recording elements are disposed, and the second inlet port and the second recovery port communicate without going through channel portions where recording elements are disposed.Type: ApplicationFiled: February 5, 2018Publication date: June 7, 2018Inventors: Takatsuna Aoki, Seiichiro Karita, Shingo Okushima, Eisuke Nishitani, Yumi Komamiya, Kazuhiro Yamada, Zentaro Tamenaga, Noriyasu Nagai, Tatsurou Mori, Shuzo Iwanaga, Akio Saito, Akira Yamamoto
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Patent number: 9925802Abstract: Provided is a highly reliable ink jet recording apparatus capable of preventing the occurrence of image defects. The ink jet recording apparatus includes a liquid absorbing device including a porous body configured to absorb/remove an aqueous liquid component from an image containing the aqueous liquid component and a coloring material, a heat drying device configured to perform a heat drying treatment of the image after being subjected to the liquid absorption treatment, a temperature measuring device configured to measure the temperature of the image after being subjected to the heat drying treatment with the heat drying device, and a determination unit configured to determine the state of the liquid absorbing device from the measured temperature.Type: GrantFiled: February 14, 2017Date of Patent: March 27, 2018Assignee: Canon Kabushiki KaishaInventors: Eisuke Nishitani, Takao Ogata, Akira Morita, Takumi Otani, Toshimori Miyakoshi
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Patent number: 9925792Abstract: A liquid discharge head includes discharge orifices, recording elements that generate energy, supply channels that supply liquid to the recording elements, a common supply channel communicating with the supply channels, recovery channels that recover liquid supplied to the recording elements, a common recovery channel that recovers liquid from the recovery channels, a first inlet port that supplies liquid to the common supply channel, a first recovery port that recovers liquid from the first common supply channel, a second inlet port that supplies liquid to the common recovery channel, and a second recovery port that recovers liquid from the second common recovery channel. The first inlet port and the first recovery port communicate without going through channel portions where recording elements are disposed, and the second inlet port and the second recovery port communicate without going through channel portions where recording elements are disposed.Type: GrantFiled: December 22, 2016Date of Patent: March 27, 2018Assignee: Canon Kabushiki KaishaInventors: Takatsuna Aoki, Seiichiro Karita, Shingo Okushima, Eisuke Nishitani, Yumi Komamiya, Kazuhiro Yamada, Zentaro Tamenaga, Noriyasu Nagai, Tatsurou Mori, Shuzo Iwanaga, Akio Saito, Akira Yamamoto
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Publication number: 20180043688Abstract: Provided is a liquid ejection head comprising: an ejection opening row along a first direction; a pressure chamber with print-element; a passage communicating with the pressure chamber; a supply opening row along the first direction with supply openings extending in a second direction to supply liquid to the passage; a collection opening row along the first direction with collection openings extending in the second direction to collect a liquid from the passage; a first common supply passage along the first direction to supply a liquid to the supply opening row; a first common collection passage along the first direction to collect a liquid from the collection opening row; a first supply side communication opening extending in the second direction to supply a liquid to the first common supply passage; and a first collection side communication opening extending in the second direction to collect a liquid from the first common collection passage, wherein at least one of the first supply side communication openiType: ApplicationFiled: October 16, 2017Publication date: February 15, 2018Inventors: Shingo Okushima, Seiichiro Karita, Takatsuna Aoki, Noriyasu Nagai, Eisuke Nishitani, Yumi Komamiya
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Patent number: 9789705Abstract: An ink jet recording method in which an image is formed by applying onto a recording medium a reaction liquid, an aqueous pigment ink containing an anionic polymer aggregatable by the reaction liquid and a resin-containing aqueous liquid containing an anionic polymer aggregatable by the reaction liquid to form an image, the method including the steps of applying the reaction liquid to the recording medium; applying the aqueous pigment ink to a surface of the recording medium to which the reaction liquid is applied by an ink jet method to form an image; and applying the resin-containing aqueous liquid to the image formed on the recording medium by the ink jet method. The surface tension of the resin-containing aqueous liquid is higher than the surface tension of the aqueous pigment ink.Type: GrantFiled: March 30, 2016Date of Patent: October 17, 2017Assignee: Canon Kabushiki KaishaInventors: Keiichirou Takeuchi, Koichiro Nakazawa, Fumihiro Goto, Eisuke Nishitani, Kanako Soma, Takumi Otani
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Publication number: 20170232760Abstract: Provided is a highly reliable ink jet recording apparatus capable of preventing the occurrence of image defects. The ink jet recording apparatus includes a liquid absorbing device including a porous body configured to absorb/remove an aqueous liquid component from an image containing the aqueous liquid component and a coloring material, a heat drying device configured to perform a heat drying treatment of the image after being subjected to the liquid absorption treatment, a temperature measuring device configured to measure the temperature of the image after being subjected to the heat drying treatment with the heat drying device, and a determination unit configured to determine the state of the liquid absorbing device from the measured temperature.Type: ApplicationFiled: February 14, 2017Publication date: August 17, 2017Inventors: Eisuke Nishitani, Takao Ogata, Akira Morita, Takumi Otani, Toshimori Miyakoshi
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Patent number: 9718278Abstract: An image forming apparatus comprising: a color ink applying unit configured to apply color ink to a print medium; a clear ink applying unit configured to apply a plurality of clear inks to the print medium to cover the applied color ink, each clear ink of the plurality of clear inks having a degree of glossiness that is different from each other; and a determining unit configured to determine an amount ratio of each clear ink to each other clear ink of the plurality of clear inks in accordance with the degree of glossiness indicated by the glossiness data and to determine an amount of each clear ink of the plurality of clear inks such that the determined ratio is satisfied and such that the clear inks cover the applied color ink and print medium at approximately 100% area coverage.Type: GrantFiled: August 23, 2016Date of Patent: August 1, 2017Assignee: Canon Kabushiki KaishaInventors: Akira Morita, Keiichirou Takeuchi, Eisuke Nishitani, Takumi Otani, Fumihiro Goto, Koichiro Nakazawa