Patents by Inventor Akiko Saito

Akiko Saito 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).

  • Patent number: 10427413
    Abstract: A liquid ejection head includes a plurality of liquid chambers each including an energy generating element that generates energy for ejecting a liquid, an ejection opening that ejects the liquid, and a liquid supply opening that supplies the liquid, the liquid flowing in a first direction in the plurality of liquid chambers, and the plurality of liquid chambers being arranged in a second direction that intersects the first direction, and a plurality of first side walls that extend in the first direction and that form walls on both sides of the plurality of liquid chambers. In the liquid ejection head, each of the plurality of first side walls includes a fragmenting portion that fragments each of the plurality of first side walls in the first direction.
    Type: Grant
    Filed: May 17, 2017
    Date of Patent: October 1, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akiko Saito, Shintaro Kasai, Yoshiyuki Nakagawa
  • Publication number: 20190296215
    Abstract: A multilayer ultrasonic transducer of an embodiment includes: a plurality of stacked oscillators; external electrodes disposed on outer exposed surfaces of two oscillators disposed in the outermost layers out of the plurality of oscillators; and a plurality of internal electrodes each disposed between two of the plurality of oscillators. There are provided electrode regions in which the plurality of internal electrodes are arranged such that the number of layers of the internal electrodes in a direction in which the oscillators are stacked gradiently increases from an inner region toward an outer peripheral region of the plurality of oscillators, and ultrasonic waves emitted from the plurality of oscillators are focused toward at least the inner region.
    Type: Application
    Filed: September 14, 2018
    Publication date: September 26, 2019
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tsuyoshi KOBAYASHI, Noriko Yamamoto, Yasuharu Hosono, Mitsunaga Saito, Kazuhiro Itsumi, Akiko Hirao, Tomio Ono
  • Patent number: 10421276
    Abstract: 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: Grant
    Filed: May 15, 2017
    Date of Patent: September 24, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akiko Saito, Shintaro Kasai, Yoshiyuki Nakagawa, Takatsugu Moriya, Koichi Ishida, Tatsuya Yamada, Shuzo Iwanaga, Ayako Iwasaki, Tomoki Ishiwata, Tomohiro Sato
  • Publication number: 20190285589
    Abstract: A parameter estimation method, comprises: acquiring appearance information including a shape information and a position information of at least one package; vibrating the at least one package at least at one position selected in accordance with the appearance information, and acquiring at least one data showing a vibration of the at least one package, and estimating a value of at least one parameter of the at least one package in accordance with a relation between the at least one data and the at least one parameter.
    Type: Application
    Filed: September 10, 2018
    Publication date: September 19, 2019
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Akiko HIRAO, Satoshi TAKAYAMA, Tomio ONO, Noriko YAMAMOTO, Yasuharu HOSONO, Tsuyoshi KOBAYASHI, Kazuhiro ITSUMI, Mitsunaga SAITO
  • Patent number: 10393412
    Abstract: One embodiment provides a cryogenic regenerator material containing as the main constituent at least one compound (A) containing at least one metallic element M and at least one non-metallic element X selected from O, S, N and F. The compound (A) in the cryogenic regenerator material has a half width of a main peak of 0.2 degrees or more obtained by the powder X-ray diffraction measurement.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: August 27, 2019
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Masaki Endo, Akiko Saito, Koichi Harada, Norihiro Tomimatsu
  • Patent number: 10336091
    Abstract: A liquid discharge head includes: a substrate, where a recording element is disposed; and a discharge orifice forming member, where a discharge orifice, facing the recording element, and configured to discharge the liquid, is formed. The liquid discharge head has a pressure chamber, a first liquid channel configured to supply liquid to the pressure chamber, and a second liquid channel configured to recover liquid from the pressure chamber. The substrate has a liquid supply channel connected to the first liquid channel to supply liquid to the first liquid channel, and a liquid recovery channel connected to the second liquid channel, to recover liquid from the second liquid channel. Pressure at an inlet portion of the liquid supply channel is higher than pressure at an outlet portion of the liquid recovery channel, and a flow velocity of liquid within the pressure chamber is 3 to 140 mm/s.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: July 2, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshiyuki Nakagawa, Shintaro Kasai, Shuzo Iwanaga, Akiko Saito, Koichi Ishida, Takatsugu Moriya
  • Patent number: 10293599
    Abstract: The present invention discloses a method for producing a decorative article which includes a step of performing inkjet printing onto the surface of a humidity-conditioning base material using an aqueous inkjet ink containing at least water, a water-dispersible resin and a colorant, and also discloses a device for producing the decorative article.
    Type: Grant
    Filed: November 28, 2014
    Date of Patent: May 21, 2019
    Assignee: RISO KAGAKU CORPORATION
    Inventors: Hirotaka Yamamoto, Sayako Arai, Mamoru Saito, Ami Terakado, Akiko Hayashi
  • Patent number: 10293607
    Abstract: A recording element board includes a discharge orifice configured to discharge liquid, a pressure chamber communicating with the discharge orifice, a recording element configured to generate thermal energy to cause bubbling of the liquid, the recording element being disposed in the pressure chamber facing the discharge orifice, and a substrate on which the recording element is formed. When the recording element is driven and the liquid of within the pressure chamber is discharged, a generated bubble communicates with the atmosphere. A discharge orifice projection region where the discharge orifice has been projected on the substrate includes a region includes a region extending beyond a heat-generating region projection region where the heat-generating region of the recording element has been projected on the substrate, the outline of the discharge orifice projection region is circumscribed by the outline of the heat-generating region projection region.
    Type: Grant
    Filed: January 3, 2017
    Date of Patent: May 21, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Takatsugu Moriya, Shintaro Kasai, Yoshiyuki Nakagawa, Akiko Saito, Koichi Ishida, Tatsuya Yamada, Shinji Kishikawa, Takayuki Sekine, Shuzo Iwanaga
  • Patent number: 10201972
    Abstract: A recording element substrate includes: a substrate on which a plurality of energy generating elements that generate energy used for ejecting liquid are arranged side by side, an ejection port forming member in which ejection ports are formed at positions corresponding to the plurality of energy generating elements, a plurality of supply passages which are channels extending in a thickness direction of the substrate and through which liquid is supplied to the energy generating elements, and a support member that is formed between the substrate and the ejection port forming member and supports the ejection port forming member, in which supply ports that are apertures of the plurality of supply passages are linearly arranged side by side on the substrate, and a plurality of support members are provided side by side between adjacent supply ports on the substrate in a direction in which the supply ports are aligned.
    Type: Grant
    Filed: May 17, 2017
    Date of Patent: February 12, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akiko Saito, Shintaro Kasai, Yoshiyuki Nakagawa, Takatsugu Moriya, Koichi Ishida, Shinji Kishikawa, Takayuki Sekine, Shuzo Iwanaga, Tatsuya Yamada
  • Patent number: 10195848
    Abstract: A liquid discharge head includes a recording element configured to generate thermal energy and a discharge orifice disposed at a position facing the recording element. A bubble is generated in liquid by the thermal energy, liquid between the bubble and the discharge orifice is discharged from the discharge orifice by the pressure of the generated bubble, and the bubble communicates with the atmosphere on the outside of the discharge orifice.
    Type: Grant
    Filed: December 30, 2016
    Date of Patent: February 5, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshiyuki Nakagawa, Shintaro Kasai, Akiko Saito, Shinji Kishikawa, Takayuki Sekine, Shuzo Iwanaga, Takatsugu Moriya, Koichi Ishida, Tatsuya Yamada
  • Patent number: 10195850
    Abstract: An element substrate includes a substrate including a supply port configured to supply liquid, and a discharge port forming member including a discharge port configured to discharge the liquid supplied from the supply port. The discharge port forming member includes a liquid flow path communicating between the discharge port and the supply port on a surface opposed to a surface where the discharge port is provided. The discharge port forming member includes thick film portions and thin film portions in a region where the liquid flow path is formed. The thick film portions are lined up in a first direction so as to sandwich the discharge port therebetween and thicker than an adjacent portion adjacent to the discharge port. The thin film portions are lined up in a second direction intersecting with the first direction so as to sandwich the discharge port therebetween and thinner than the adjacent portion.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: February 5, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shintaro Kasai, Akiko Saito
  • Patent number: 10183490
    Abstract: A discharge port array is inclined to a second direction B at an angle ? that satisfies a relation of tan ?=d2/(N×d1), where d1 is a distance between discharge ports within the discharge port array in the second direction B, and d2 is a distance between two adjacent discharge ports within each group in a first direction.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: January 22, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomohiro Sato, Shintaro Kasai, Yoshiyuki Nakagawa, Akiko Saito, Takatsugu Moriya, Koichi Ishida, Tatsuya Yamada, Shuzo Iwanaga, Shingo Okushima
  • Patent number: 10166771
    Abstract: A liquid ejection method includes ejecting liquid from an ejection opening, using a liquid ejection head including a heating surface configured to heat the liquid and the ejection opening corresponding to the heating surface, by heating the liquid with the heating surface to produce a bubble communicating with air through the ejection opening such that at least a part of the heating surface is exposed to the air through the ejection opening, wherein the liquid is heated with the heating surface for 0.5 microseconds or shorter to produce a bubble communicating with the air through the ejection opening such that at least a part of the heating surface is exposed to the air through the ejection opening, in order to eject the liquid from the ejection opening.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: January 1, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shintaro Kasai, Yoshiyuki Nakagawa, Akiko Saito, Shinji Kishikawa
  • Patent number: 10112387
    Abstract: 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: Grant
    Filed: July 20, 2017
    Date of Patent: October 30, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takatsugu Moriya, Shuzo Iwanaga, Shintaro Kasai, Yoshiyuki Nakagawa, Akiko Saito, Tatsuya Yamada, Tomohiro Sato, Ayako Iwasaki, Tomoki Ishiwata, Koichi Ishida
  • Patent number: 10101061
    Abstract: According to an embodiment, a cryogenic regenerator material contains a silver oxide. A molar ratio of silver atoms to oxygen atoms contained in the cryogenic regenerator material: Ag/O is 1.0 or more and 4.0 or less. The cryogenic regenerator material contains at least one selected from AgO, Ag2O and Ag3O as the silver oxide.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: October 16, 2018
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tomoko Eguchi, Akiko Saito
  • Patent number: 10040288
    Abstract: A liquid ejection module and a liquid ejection head capable of suppressing unevenness in printing are provided. Accordingly, openings are disposed so that a center position of at least one of openings in a plurality of ejection opening rows is not disposed on the same line extending in a print medium movement direction in a relative movement with respect to center positions of the other openings.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: August 7, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takatsugu Moriya, Shintaro Kasai, Yoshiyuki Nakagawa, Akiko Saito, Koichi Ishida, Tatsuya Yamada, Shuzo Iwanaga, Ayako Tozuka, Tomoki Ishiwata, Tomohiro Sato
  • Publication number: 20180162130
    Abstract: A liquid ejection module and a liquid ejection head capable of suppressing unevenness in printing are provided. Accordingly, openings are disposed so that a center position of at least one of openings in a plurality of ejection opening rows is not disposed on the same line extending in a print medium movement direction in a relative movement with respect to center positions of the other openings.
    Type: Application
    Filed: February 6, 2018
    Publication date: June 14, 2018
    Inventors: Takatsugu Moriya, Shintaro Kasai, Yoshiyuki Nakagawa, Akiko Saito, Koichi Ishida, Tatsuya Yamada, Shuzo Iwanaga, Ayako Tozuka, Tomoki Ishiwata, Tomohiro Sato
  • Patent number: 9981470
    Abstract: A liquid ejection head substrate includes a heating resistor array including a plurality of heating resistors and a protective film covering at least one of the heating resistors. The liquid ejection head substrate further includes a supply opening array and an electrode. The supply opening array is disposed on a side of a surface of the liquid ejection head substrate on which the protective film is provided. The supply opening array includes a plurality of supply openings through which a liquid is supplied arranged in a direction along the heating resistor array. The electrode is disposed on the side of the surface in a space between the supply openings adjacent to each other in a direction along the supply opening array. The electrode is configured such that a voltage is applied between the electrode and the protective film.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: May 29, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koichi Ishida, Shintaro Kasai, Yoshiyuki Nakagawa, Akiko Saito, Takatsugu Moriya, Tatsuya Yamada, Shuzo Iwanaga
  • Patent number: 9975347
    Abstract: A liquid is reliably supplied to a liquid ejection head through a plurality of supply paths. The liquid is supplied to a plurality of areas of the liquid ejection head through the plurality of supply paths and a liquid ejection amount per unit time from the liquid ejection head is controlled so that a liquid flow amount of each of the areas becomes a predetermined flow amount or less.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: May 22, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ayako Tozuka, Shuzo Iwanaga, Shintaro Kasai, Yoshiyuki Nakagawa, Akiko Saito, Tomohiro Sato, Takatsugu Moriya, Koichi Ishida, Tatsuya Yamada, Tomoki Ishiwata
  • Patent number: 9969165
    Abstract: Multiple recording elements are disposed on one face of a recording element board, and a groove-shaped liquid supply channel is provided on the other face in common for the recording elements. Multiple supply ports passing through the recording element board and communicating the liquid supply channel with pressure chambers, and supply-side openings serving as supply ports of liquid to the liquid supply channel are further provided. When discharging liquid, the sum of pressure drop of the liquid from any supply-side opening to the supply port at a position farthest removed from that supply-side opening, and the pressure drop of the liquid at the supply port, is 5000 Pa or less.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: May 15, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shintaro Kasai, Yoshiyuki Nakagawa, Akiko Saito, Takatsugu Moriya, Koichi Ishida, Tatsuya Yamada, Shuzo Iwanaga, Ayako Tozuka, Tomoki Ishiwata, Tomohiro Sato