Patents by Inventor Ayako Iwasaki
Ayako Iwasaki 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: 20230330989Abstract: To provide a liquid ejection module capable of arranging ejection openings for a high resolution and suppressing an increase in wiring resistance without decreasing liquid circulation efficiency, a liquid delivery mechanism is arranged below an energy generating element, a plurality of penetrating flow paths are provided to correspond to a plurality of pressure chambers, respectively, and electric wiring is routed between adjacent penetrating flow paths.Type: ApplicationFiled: April 14, 2023Publication date: October 19, 2023Inventors: AYAKO IWASAKI, YOSHIYUKI NAKAGAWA
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Publication number: 20220125376Abstract: A sleep apnea syndrome determination apparatus includes a processing unit configured to, by using RRI data indicating a heart rate interval (R-R Interval: RRI) in a sleeping period of a subject, determine whether or not the subject has sleep apnea syndrome. The processing unit operates to generate a feature vector including a plurality of heart rate intervals that are consecutive in the sleeping period; calculate, from a value that is outputted as a result of inputting the feature vector to a recurrent neural network and that is obtained for each identification target period that corresponds to the plurality of heart rate intervals included in the feature vector inputted, an index based on a ratio between a period of an apnea state and a period of a normal respiration state in the sleeping period; and determine whether the subject has sleep apnea syndrome, on the basis of the index.Type: ApplicationFiled: January 9, 2020Publication date: April 28, 2022Applicant: KYOTO UNIVERSITYInventors: Koichi FUJIWARA, Chikao NAKAYAMA, Ayako IWASAKI
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Patent number: 10987921Abstract: An image forming apparatus 101 capable of performing printing with a high image quality, and a control method of the image forming apparatus 101 are provided. For this purpose, a threshold value Dt is preliminarily set that allows printing without occurrence of blur, for each of preliminarily set monitoring areas A. In the case where a print duty for each of the monitoring areas A has exceeded the threshold value Dt, an ejection frequency of ink and conveying speed of a print medium are reduced in association therebetween.Type: GrantFiled: March 15, 2019Date of Patent: April 27, 2021Assignee: Canon Kabushiki KaishaInventors: Ayako Iwasaki, Yoshiyuki Nakagawa, Yoshihiro Hamada, Masashi Hayashi, Kentaro Muro, Yutaka Kano, Takahide Takeishi
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Patent number: 10723127Abstract: A liquid ejection head including first and second recording element substrates adjacent in a direction intersecting a relative movement direction include ejection opening rows that include ejection openings arranged in the intersecting direction. A straight line connecting the ejection openings in end portions on a second recording element substrate side in the first recording element substrate and a straight line connecting the ejection openings in end portions on a first recording element substrate side in the second recording element substrate are inclined towards a middle area side of the first recording element substrate, and arrangement intervals of the ejection openings in an end portion area on the second recording element substrate side of a first ejection opening row is larger than arrangement intervals of the ejection openings in an end portion area on the first recording element substrate side of a second ejection opening row.Type: GrantFiled: April 1, 2019Date of Patent: July 28, 2020Assignee: Canon Kabushiki KaishaInventors: Koichi Ishida, Shuzo Iwanaga, Shintaro Kasai, Yoshiyuki Nakagawa, Akiko Hammura, Takatsugu Moriya, Tomohiro Sato, Tatsuya Yamada, Tomoki Ishiwata, Ayako Iwasaki
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Patent number: 10486421Abstract: A liquid discharging head includes a discharge port that discharges a liquid, a pressure chamber that communicates with the discharge port, and an energy generating element that is disposed in the pressure chamber. In the liquid discharging head, the discharge port is provided with a plurality of projections that project towards a central portion of the discharge port from an inner peripheral edge of the discharge port, and an interval between the projections at a location where the projections are closest to each other is 5 ?m or less.Type: GrantFiled: September 27, 2018Date of Patent: November 26, 2019Assignee: Canon Kabushiki KaishaInventors: Takatsugu Moriya, Shuzo Iwanaga, Shintaro Kasai, Yoshiyuki Nakagawa, Akiko Hammura, Tatsuya Yamada, Tomohiro Sato, Ayako Iwasaki, Tomoki Ishiwata, Koichi Ishida
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Publication number: 20190308413Abstract: A liquid ejection head including first and second recording element substrates adjacent in a direction intersecting a relative movement direction include ejection opening rows that include ejection openings arranged in the intersecting direction. A straight line connecting the ejection openings in end portions on a second recording element substrate side in the first recording element substrate and a straight line connecting the ejection openings in end portions on a first recording element substrate side in the second recording element substrate are inclined towards a middle area side of the first recording element substrate, and arrangement intervals of the ejection openings in an end portion area on the second recording element substrate side of a first ejection opening row is larger than arrangement intervals of the ejection openings in an end portion area on the first recording element substrate side of a second ejection opening row.Type: ApplicationFiled: April 1, 2019Publication date: October 10, 2019Inventors: Koichi Ishida, Shuzo Iwanaga, Shintaro Kasai, Yoshiyuki Nakagawa, Akiko Hammura, Takatsugu Moriya, Tomohiro Sato, Tatsuya Yamada, Tomoki Ishiwata, Ayako Iwasaki
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Publication number: 20190299592Abstract: An image forming apparatus 101 capable of performing printing with a high image quality, and a control method of the image forming apparatus 101 are provided. For this purpose, a threshold value Dt is preliminarily set that allows printing without occurrence of blur, for each of preliminarily set monitoring areas A. In the case where a print duty for each of the monitoring areas A has exceeded the threshold value Dt, an ejection frequency of ink and conveying speed of a print medium are reduced in association therebetween.Type: ApplicationFiled: March 15, 2019Publication date: October 3, 2019Inventors: Ayako Iwasaki, Yoshiyuki Nakagawa, Yoshihiro Hamada, Masashi Hayashi, Kentaro Muro, Yutaka Kano, Takahide Takeishi
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Patent number: 10421276Abstract: A printing element substrate includes a substrate, an energy generating element, and an ejection-port formed member. The energy generating element is disposed on one surface of the substrate and configured to generate energy for use in ejecting liquid. The ejection-port formed member includes ejection ports that eject the liquid. A protrusion protruding toward inside of each of the ejection ports is provided on an inner surface of the ejection port. In a surface of the ejection-port formed member remote from the substrate, a tip portion of the protrusion is positioned closer to the substrate than an outer periphery of the ejection port.Type: GrantFiled: May 15, 2017Date of Patent: September 24, 2019Assignee: Canon Kabushiki KaishaInventors: Akiko Saito, Shintaro Kasai, Yoshiyuki Nakagawa, Takatsugu Moriya, Koichi Ishida, Tatsuya Yamada, Shuzo Iwanaga, Ayako Iwasaki, Tomoki Ishiwata, Tomohiro Sato
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Publication number: 20190023001Abstract: A liquid discharging head includes a discharge port that discharges a liquid, a pressure chamber that communicates with the discharge port, and an energy generating element that is disposed in the pressure chamber. In the liquid discharging head, the discharge port is provided with a plurality of projections that project towards a central portion of the discharge port from an inner peripheral edge of the discharge port, and an interval between the projections at a location where the projections are closest to each other is 5 ?m or less.Type: ApplicationFiled: September 27, 2018Publication date: January 24, 2019Inventors: Takatsugu Moriya, Shuzo Iwanaga, Shintaro Kasai, Yoshiyuki Nakagawa, Akiko Hammura, Tatsuya Yamada, Tomohiro Sato, Ayako Iwasaki, Tomoki Ishiwata, Koichi Ishida
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Patent number: 10112387Abstract: A liquid discharging head includes a discharge port that discharges a liquid, a pressure chamber that communicates with the discharge port, and an energy generating element that is disposed in the pressure chamber. In the liquid discharging head, the discharge port is provided with a plurality of projections that project towards a central portion of the discharge port from an inner peripheral edge of the discharge port, and an interval between the projections at a location where the projections are closest to each other is 5 ?m or less.Type: GrantFiled: July 20, 2017Date of Patent: October 30, 2018Assignee: Canon Kabushiki KaishaInventors: Takatsugu Moriya, Shuzo Iwanaga, Shintaro Kasai, Yoshiyuki Nakagawa, Akiko Saito, Tatsuya Yamada, Tomohiro Sato, Ayako Iwasaki, Tomoki Ishiwata, Koichi Ishida
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Publication number: 20180022087Abstract: A liquid discharging head includes a discharge port that discharges a liquid, a pressure chamber that communicates with the discharge port, and an energy generating element that is disposed in the pressure chamber. In the liquid discharging head, the discharge port is provided with a plurality of projections that project towards a central portion of the discharge port from an inner peripheral edge of the discharge port, and an interval between the projections at a location where the projections are closest to each other is 5 ?m or less.Type: ApplicationFiled: July 20, 2017Publication date: January 25, 2018Inventors: Takatsugu Moriya, Shuzo Iwanaga, Shintaro Kasai, Yoshiyuki Nakagawa, Akiko Saito, Tatsuya Yamada, Tomohiro Sato, Ayako Iwasaki, Tomoki Ishiwata, Koichi Ishida
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Publication number: 20170341388Abstract: A printing element substrate includes a substrate, an energy generating element, and an ejection-port formed member. The energy generating element is disposed on one surface of the substrate and configured to generate energy for use in ejecting liquid. The ejection-port formed member includes ejection ports that eject the liquid. A protrusion protruding toward inside of each of the ejection ports is provided on an inner surface of the ejection port. In a surface of the ejection-port formed member remote from the substrate, a tip portion of the protrusion is positioned closer to the substrate than an outer periphery of the ejection port.Type: ApplicationFiled: May 15, 2017Publication date: November 30, 2017Inventors: Akiko Saito, Shintaro Kasai, Yoshiyuki Nakagawa, Takatsugu Moriya, Koichi Ishida, Tatsuya Yamada, Shuzo Iwanaga, Ayako Iwasaki, Tomoki Ishiwata, Tomohiro Sato