Patents by Inventor Jun Yasutani
Jun Yasutani 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: 10549526Abstract: An intermediate transfer body is efficiently heated, and thus, transfer properties of an image and durability of the intermediate transfer body are ensured. A heating unit heats the intermediate transfer body by using a plurality of heating sources which are positioned by being shifted, with respect to a rotation direction of the intermediate transfer body. The plurality of heating sources includes a first heating source and a second heating source. A degree of heating the intermediate transfer body by the second heating source is greater than a degree of heating the intermediate transfer body by the first heating source. The second heating source is positioned on an upstream side, with respect to the rotation direction of the intermediate transfer body, from the first heating source.Type: GrantFiled: May 25, 2018Date of Patent: February 4, 2020Assignee: Canon Kabushiki KaishaInventors: Koji Inoue, Jun Yasutani, Nobuhiro Kitabatake, Yoichi Takada
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Patent number: 10421294Abstract: A recording apparatus includes an ink applying unit which applies, based on image data, ink containing coloring material, on a recording medium to record an image for the image data; a treatment-solution applying unit which applies treatment solution containing acid for agglomerating components in the ink, at and around an ink application position on the recording medium; a neutralizing unit which applies neutralizing solution for neutralizing the acid, on the recording medium on which the treatment solution and the ink have been applied; and a determining unit which, based on the image data and position data for application of the treatment solution, determines a neutralizing-solution application region so that only at least a part of a region in which only the treatment solution is applied on the recording medium is set as the neutralizing-solution application region. The neutralizing unit applies the neutralizing solution in the determined neutralizing-solution application region.Type: GrantFiled: December 15, 2016Date of Patent: September 24, 2019Assignee: CANON KABUSHIKI KAISHAInventors: Shingo Matsuura, Yoshiaki Murayama, Jun Yasutani
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Publication number: 20180345657Abstract: An intermediate transfer body is efficiently heated, and thus, transfer properties of an image and durability of the intermediate transfer body are ensured. A heating unit heats the intermediate transfer body by using a plurality of heating sources which are positioned by being shifted in a rotation direction of the intermediate transfer body. The plurality of heating sources includes a first heating source and a second heating source, a degree of heating the intermediate transfer body by the second heating source being higher than a degree of heating the intermediate transfer body by the first heating source. The second heating source is positioned on an upstream side in the rotation direction from the first heating source.Type: ApplicationFiled: May 25, 2018Publication date: December 6, 2018Inventors: Koji Inoue, Jun Yasutani, Nobuhiro Kitabatake, Yoichi Takada
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Publication number: 20170173976Abstract: A recording apparatus includes an ink applying unit which applies, based on image data, ink containing coloring material, on a recording medium to record an image for the image data; a treatment-solution applying unit which applies treatment solution containing acid for agglomerating components in the ink, at and around an ink application position on the recording medium; a neutralizing unit which applies neutralizing solution for neutralizing the acid, on the recording medium on which the treatment solution and the ink have been applied; and a determining unit which, based on the image data and position data for application of the treatment solution, determines a neutralizing-solution application region so that only at least a part of a region in which only the treatment solution is applied on the recording medium is set as the neutralizing-solution application region. The neutralizing unit applies the neutralizing solution in the determined neutralizing-solution application region.Type: ApplicationFiled: December 15, 2016Publication date: June 22, 2017Inventors: Shingo Matsuura, Yoshiaki Murayama, Jun Yasutani
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Patent number: 9498984Abstract: A recording apparatus has a controller that controls a conveying roller and a discharge roller for conveying a recording medium. The controller controls the rotation phases of the conveying roller and the discharge roller when the recording medium leaves the conveying roller before the recording medium enters the conveying roller.Type: GrantFiled: December 12, 2014Date of Patent: November 22, 2016Assignee: Canon Kabushiki KaishaInventors: Hiroyuki Saito, Takaaki Ishida, Koichiro Kawaguchi, Toshirou Yoshiike, Jun Yasutani, Shuichi Tokuda
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Publication number: 20150097890Abstract: A recording apparatus has a controller that controls a conveying roller and a discharge roller for conveying a recording medium. The controller controls the rotation phases of the conveying roller and the discharge roller when the recording medium leaves the conveying roller before the recording medium enters the conveying roller.Type: ApplicationFiled: December 12, 2014Publication date: April 9, 2015Inventors: Hiroyuki Saito, Takaaki Ishida, Koichiro Kawaguchi, Toshirou Yoshiike, Jun Yasutani, Shuichi Tokuda
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Patent number: 8944552Abstract: An inkjet printing apparatus includes a printhead including a temperature sensor and an element array formed by arraying a plurality of heat generation elements each of which generates a thermal energy required to discharge an ink in response to application of a driving pulse, a specifying unit configured to specify a portion used in printing of the element array, and a selection unit configured to select a driving pulse to be applied to the respective heat generation elements based on the portion specified by the specifying unit and a temperature of the printhead measured by the temperature sensor.Type: GrantFiled: October 4, 2012Date of Patent: February 3, 2015Assignee: Canon Kabushiki KaishaInventor: Jun Yasutani
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Patent number: 8939537Abstract: By performing an average process of a result of a plurality of times of samplings by the temperature sensor provided on a printing element substrate, temperature of the printing element substrate is obtained. In this case, the number of times of samplings is determined on the basis of a simultaneously driven number in the printing element substrate. This enables the number of times of samplings for the temperature sensor to be determined depending on a simultaneously driven number at each time, and therefore while suppressing an influence of noise, the temperature of the printing element substrate can be measured in a highly reliable state where there is no separation from an actual temperature.Type: GrantFiled: March 12, 2013Date of Patent: January 27, 2015Assignee: Canon Kabushiki KaishaInventor: Jun Yasutani
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Patent number: 8936338Abstract: A recording apparatus has a controller that controls a conveying roller and a discharge roller for conveying a recording medium. The controller controls the rotation phases of the conveying roller and the discharge roller when the recording medium leaves the conveying roller before the recording medium enters the conveying roller.Type: GrantFiled: July 6, 2012Date of Patent: January 20, 2015Assignee: Canon Kabushiki KaishaInventors: Hiroyuki Saito, Takaaki Ishida, Koichiro Kawaguchi, Toshirou Yoshiike, Jun Yasutani, Shuichi Tokuda
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Patent number: 8870333Abstract: A printing apparatus and temperature detecting method can accurately obtain temperature of a printing element substrate and output a high-quality image at high resolution and high speed. For this purpose, a first temperature sensor outputting signals through a first output line and a second temperature sensor outputting signals through a second output line that is longer than the first output line are provided on the printing element substrate. In addition, a switch between the case of using detected temperatures obtained from both of the first temperature sensor and the second temperature sensor to calculate the temperature of the printing element substrate, and the case of using only the detected temperature obtained from the first temperature sensor to calculate the temperature of a printing element substrate is made. On this basis, inaccurate temperature of a printing element substrate due to noise can be avoided.Type: GrantFiled: December 18, 2012Date of Patent: October 28, 2014Assignee: Canon Kabushiki KaishaInventors: Jun Yasutani, Hiroshi Tajika
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Patent number: 8678370Abstract: A recording apparatus to record an image on a recording medium using a recording head includes a first conveying roller, a second conveying roller, and a controller. The first conveying roller is positioned upstream of the recording head in a conveying direction and the second conveying roller is positioned downstream of the recording head in the conveying direction. In response to a first conveying mode being selected, the controller performs a rotational phase control in which the controller controls rotational phases of the first conveying roller and the second conveying roller such that the recording medium is conveyed by predetermined sections of circumferences of the first conveying roller and the second conveying roller when a trailing end of the recording medium passes the first conveying roller. In response to the second conveying mode being selected, the controller does not perform the rotational phase control.Type: GrantFiled: September 13, 2012Date of Patent: March 25, 2014Assignee: Canon Kabushiki KaishaInventors: Minoru Teshigawara, Jun Yasutani, Takeshi Yazawa, Hiroyuki Saito, Takaaki Ishida, Koichiro Kawaguchi, Toshiro Yoshiike, Shuichi Tokuda
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Patent number: 8562098Abstract: In the present invention, a conveying operation of a recording medium is controlled on the basis of a first correction value and a second correction value. The first correction value is used for correcting a conveying amount when the recording medium disengages from a first conveying roller, and the second correction value is used for correcting the phase of the first conveying roller and a second conveying roller when the recording medium disengages from the first conveying roller before the recording medium is nipped by the first conveying roller.Type: GrantFiled: March 27, 2012Date of Patent: October 22, 2013Assignee: Canon Kabushiki KaishaInventors: Jun Yasutani, Hiroyuki Saito, Minoru Teshigawara, Takeshi Yazawa
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Publication number: 20130257944Abstract: By performing an average process of a result of a plurality of times of samplings by the temperature sensor provided on a printing element substrate, temperature of the printing element substrate is obtained. In this case, the number of times of samplings is determined on the basis of a simultaneously driven number in the printing element substrate. This enables the number of times of samplings for the temperature sensor to be determined depending on a simultaneously driven number at each time, and therefore while suppressing an influence of noise, the temperature of the printing element substrate can be measured in a highly reliable state where there is no separation from an actual temperature.Type: ApplicationFiled: March 12, 2013Publication date: October 3, 2013Applicant: CANON KABUSHIKI KAISHAInventor: Jun Yasutani
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Patent number: 8511779Abstract: By suppressing deviation of dot-formation positions stemming from insufficient accuracy in conveying a printing medium due to eccentricity of a conveying roller, a printed image in which unevenness is less visible is obtained. An accumulated amount of conveyance errors is decreased by narrowing a nozzle-use range and reducing a conveyance amount over an entire printing region according to a mode used for printing an image in which the coverage of a printing medium is low due to a small number of ink colors to be used, for example, a mode used for printing a monochrome image by using a black ink dominantly in all of the density regions.Type: GrantFiled: November 23, 2010Date of Patent: August 20, 2013Assignee: Canon Kabushiki KaishaInventors: Jun Yasutani, Hitoshi Nishikori, Daisaku Ide, Takeshi Yazawa, Fumiko Yano, Hirokazu Kameda, Manabu Kanazawa
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Patent number: 8511787Abstract: The sequence of the acquisition of a correction value of a conveying error depending on the eccentricity of the conveying roller (correction value for eccentricity) and the acquisition of a correction value of a conveying error depending on the outer diameter of the roller (correction value for outer diameter) is considered to acquire a precise correction value for outer diameter. A test pattern to acquire the correction values for eccentricity and for outer diameter is formed with an area exceeds the area corresponding to an integer multiple of the circumferential length of the roller. The correction value for eccentricity and that for outer diameter are acquired in this sequence. The fluctuation in the conveying error is reduced by the application of the correction value for eccentricity, and the influence of the excess area is made smaller before the correction value for outer diameter is acquired by averaging the conveying errors.Type: GrantFiled: November 10, 2010Date of Patent: August 20, 2013Assignee: Canon Kabushiki KaishaInventors: Jun Yasutani, Hitoshi Nishikori, Takeshi Yazawa, Satoshi Seki, Fumiko Yano, Atsushi Takahashi
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Patent number: 8439472Abstract: While a conveying error of a roller depends on the eccentricity of the roller, the amount and the state of the eccentricity sometimes makes the roller have different conveying errors from one point in the longitudinal direction of the roller to another. There is provided a construction for obtaining a correction value that is suitable for the correction of the conveying error even in such a case as described above. To this end, plural test patterns are formed in the longitudinal direction of the roller. Then, a suitable correction value for correcting the conveying error that depends on the eccentricity of the roller is obtained on the basis of these test patterns.Type: GrantFiled: July 24, 2012Date of Patent: May 14, 2013Assignee: Canon Kabushiki KaishaInventors: Jun Yasutani, Hiroshi Tajika, Hitoshi Nishikori, Takeshi Yazawa, Satoshi Seki, Fumiko Yano, Atsushi Takahashi
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Publication number: 20130010026Abstract: A recording apparatus to record an image on a recording medium using a recording head includes a first conveying roller, a second conveying roller, and a controller. The first conveying roller is positioned upstream of the recording head in a conveying direction and the second conveying roller is positioned downstream of the recording head in the conveying direction. In response to a first conveying mode being selected, the controller performs a rotational phase control in which the controller controls rotational phases of the first conveying roller and the second conveying roller such that the recording medium is conveyed by predetermined sections of circumferences of the first conveying roller and the second conveying roller when a trailing end of the recording medium passes the first conveying roller. In response to the second conveying mode being selected, the controller does not perform the rotational phase control.Type: ApplicationFiled: September 13, 2012Publication date: January 10, 2013Applicant: CANON KABUSHIKI KAISHAInventors: Minoru Teshigawara, Jun Yasutani, Takeshi Yazawa, Hiroyuki Saito, Takaaki Ishida, Koichiro Kawaguchi, Toshiro Yoshiike, Shuichi Tokuda
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Publication number: 20120287197Abstract: While a conveying error of a roller depends on the eccentricity of the roller, the amount and the state of the eccentricity sometimes makes the roller have different conveying errors from one point in the longitudinal direction of the roller to another. There is provided a construction for obtaining a correction value that is suitable for the correction of the conveying error even in such a case as described above. To this end, plural test patterns are formed in the longitudinal direction of the roller. Then, a suitable correction value for correcting the conveying error that depends on the eccentricity of the roller is obtained on the basis of these test patterns.Type: ApplicationFiled: July 24, 2012Publication date: November 15, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Jun Yasutani, Hiroshi Tajika, Hitoshi Nishikori, Takeshi Yazawa, Satoshi Seki, Fumiko Yano, Atsushi Takahashi
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Publication number: 20120268516Abstract: A recording apparatus has a controller that controls a conveying roller and a discharge roller for conveying a recording medium. The controller controls the rotation phases of the conveying roller and the discharge roller when the recording medium leaves the conveying roller before the recording medium enters the conveying roller.Type: ApplicationFiled: July 6, 2012Publication date: October 25, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Hiroyuki Saito, Takaaki Ishida, Koichiro Kawaguchi, Toshirou Yoshiike, Jun Yasutani, Shuichi Tokuda
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Patent number: 8286960Abstract: A recording apparatus includes a conveying roller and an ejection roller for conveying a recording medium. The recording apparatus also includes a controller which controls the conveying roller and the ejection roller. The controller selectively performs a conveyance control process for the rollers when the recording medium leaves the conveying roller.Type: GrantFiled: August 19, 2009Date of Patent: October 16, 2012Assignee: Canon Kabushiki KaishaInventors: Minoru Teshigawara, Jun Yasutani, Takeshi Yazawa, Hiroyuki Saito, Takaaki Ishida, Koichiro Kawaguchi, Toshiro Yoshiike, Shuichi Tokuda