Patents by Inventor Yohei Masada

Yohei Masada 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).

  • Publication number: 20230387459
    Abstract: A solid electrolyte contains a borate containing Li, an element R selected from a group including Yb, Er, Ho, Tm, La, Nd, and Sm, and an element M selected from a group including Zr, Ce, and Sn.
    Type: Application
    Filed: August 15, 2023
    Publication date: November 30, 2023
    Inventors: Kentaro DOGUCHI, Yohei MASADA, Takaharu AOTANI, Hiroshi TANIUCHI
  • Patent number: 11738504
    Abstract: An object shaping method includes a step of forming a powder layer using first powder, a step of placing second powder having an average particle diameter smaller than an average particle diameter of the first powder at a part of a region of the powder layer, and a first heating step of heating the powder layer in which the second powder is placed. The average particle diameter is equal to or larger than 1 nm and equal to or smaller than 500 nm, and the first heating step performs heating the powder layer at a temperature at which particles contained in the second powder are sintered or melted.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: August 29, 2023
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Akira Sugiyama, Hirokazu Usami, Yohei Masada, Takaharu Aotani
  • Publication number: 20230219293
    Abstract: A shaping device for producing a layered body by repeatedly performing a step of forming a powder layer and a step of fixing powder in at least a partial region of the powder layer includes a first liquid application unit configured to apply a first liquid including a binder for binding the powder, a second liquid application unit configured to apply a second liquid for suppressing a flow of the first liquid, and a control unit that controls the first liquid application unit and the second liquid application unit so that where the powder in a first region of the formed powder layer is to be fixed, the first liquid is applied to the first region and the second liquid is applied to a second region adjacent to the first region. The second liquid is a liquid having higher permeability to the powder layer than the first liquid.
    Type: Application
    Filed: March 15, 2023
    Publication date: July 13, 2023
    Inventors: Takaharu Aotani, Yohei Masada
  • Patent number: 11633787
    Abstract: A shaping device for producing a layered body by repeatedly performing a step of forming a powder layer and a step of fixing powder in at least a partial region of the powder layer includes a first liquid application unit configured to apply a first liquid including a binder for binding the powder, a second liquid application unit configured to apply a second liquid for suppressing a flow of the first liquid, and a control unit that controls the first liquid application unit and the second liquid application unit so that where the powder in a first region of the formed powder layer is to be fixed, the first liquid is applied to the first region and the second liquid is applied to a second region adjacent to the first region. The second liquid is a liquid having higher permeability to the powder layer than the first liquid.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: April 25, 2023
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Takaharu Aotani, Yohei Masada
  • Publication number: 20220332999
    Abstract: A composition having high dispersibility of a magnetic particle to have storage stability and a heat transport device using the composition. The composition contains a particle and an aqueous medium including water. The particle contains a magnetic particle and a dispersant including polyacrylic acid or a salt thereof.
    Type: Application
    Filed: April 25, 2022
    Publication date: October 20, 2022
    Inventors: Yohei Masada, Takaharu Aotani
  • Patent number: 10889116
    Abstract: An image printing method includes the step of applying at least two inks that contain a color pigment, resin particles, and water onto a printing medium by ejecting the inks using an inkjet printing apparatus. The inkjet printing apparatus includes at least two printing heads sequentially arranged in a printing medium conveying direction, the printing medium is normal paper or a high-absorbency printing medium, a rub fastness additive is contained in a first ink ejected from at least a first printing head that is located at an uppermost-stream position in the printing medium conveying direction of the at least two printing heads, and the content of the rub fastness additive in an ink ejected from a printing head that is located at a position downstream of the first printing head in the printing medium conveying direction is less than the content of the rub fastness additive in the first ink.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: January 12, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Takaharu Aotani, Masahiro Terada, Hidetaka Kawamura, Akihiro Taya, Yohei Masada, Masanobu Ootsuka, Shoji Koike, Yutaka Yoshimasa
  • Patent number: 10836921
    Abstract: An aqueous ink for ink jet includes a coloring material, a solvent, and a surfactant having an HLB value of 9.0 or less. The solvent includes a solvent A having a solubility in water at 20° C. of 5.00 g/100 g-H2O or less and a solvent B other than the solvent A. The solvent A includes an alcohol having a vapor pressure at 20° C. of 0.5 mmHg or less and a surface tension of 30.0 mN/m or more. The content of the alcohol in the aqueous ink is 0.7 or more times the solubility in water at 20° C. in an equal amount to the aqueous ink. The solvent B has a partition coefficient (PB) satisfying the following equation (1). 1.44 Log PA?0.1x?3.4?Log PB??0.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: November 17, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akihiro Taya, Masahiro Terada, Hidetaka Kawamura, Yohei Masada, Masanobu Ootsuka, Takaharu Aotani, Yutaka Yoshimasa, Shoji Koike
  • Publication number: 20200339830
    Abstract: An inkjet ink having nickel particles dispersed in water, in which stable dispersion of the nickel particles and stable inkjet ejection are implemented. The inkjet ink includes nickel particles, a dispersant, a nonionic surfactant, and a mixed solvent of water and a water-soluble organic solvent. The inkjet ink contains the dispersant in an amount of 10 parts by mass or more and 100 parts by mass or less with respect to 100 parts by mass of the nickel particles, and contains the water-soluble organic solvent in an amount of 11 parts by mass or more and 100 parts by mass or less with respect to 100 parts by mass of the water.
    Type: Application
    Filed: April 20, 2020
    Publication date: October 29, 2020
    Inventors: Yohei Masada, Takaharu Aotani
  • Publication number: 20200206812
    Abstract: A shaping device for producing a layered body by repeatedly performing a step of forming a powder layer and a step of fixing powder in at least a partial region of the powder layer includes a first liquid application unit configured to apply a first liquid including a binder for binding the powder, a second liquid application unit configured to apply a second liquid for suppressing a flow of the first liquid, and a control unit that controls the first liquid application unit and the second liquid application unit so that where the powder in a first region of the formed powder layer is to be fixed, the first liquid is applied to the first region and the second liquid is applied to a second region adjacent to the first region. The second liquid is a liquid having higher permeability to the powder layer than the first liquid.
    Type: Application
    Filed: December 19, 2019
    Publication date: July 2, 2020
    Inventors: Takaharu Aotani, Yohei Masada
  • Publication number: 20200086559
    Abstract: An object shaping method includes a step of forming a powder layer using first powder, a step of placing second powder having an average particle diameter smaller than an average particle diameter of the first powder at a part of a region of the powder layer, and a first heating step of heating the powder layer in which the second powder is placed. The average particle diameter is equal to or larger than 1 nm and equal to or smaller than 500 nm, and the first heating step performs heating the powder layer at a temperature at which particles contained in the second powder are sintered or melted.
    Type: Application
    Filed: November 22, 2019
    Publication date: March 19, 2020
    Inventors: Akira Sugiyama, Hirokazu Usami, Yohei Masada, Takaharu Aotani
  • Patent number: 10525725
    Abstract: There is provided an image recording method including applying a first ink and a second ink, each of which contains a surfactant and the like, to a recording medium. Critical micelle concentration c1 (mass %) of the surfactant and concentration c2 (mass %) of the surfactant in each ink satisfy a relationship of “c1×2?c2”; an HLB value of the surfactant is smaller than 13; content V1 (mass %) of the surfactant in the first ink is larger than content V2 (mass %) of the surfactant in the second ink.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: January 7, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akihiro Taya, Masahiro Terada, Hidetaka Kawamura, Yohei Masada, Masanobu Ootsuka, Takaharu Aotani, Yutaka Yoshimasa, Shoji Koike
  • Patent number: 10513623
    Abstract: An aqueous ink according to the present invention is an aqueous ink for ink jet, containing a solvent A and a resin particle. The solvent A is alcohol of which aqueous solubility at 20° C. is 5% by mass or less, a vapor pressure at 20° C. is 0.5 mmHg or less and a surface tension at 20° C. is 30 mN/m or more. A content (% by mass) of the solvent A is 0.7 times or more to 7.0 times or less in terms of a ratio based on aqueous solubility (% by mass) of the solvent A at 20° C. The amount of a surface anionic functional group of the resin particle is 0.55 mmol/g or more to 2.00 mmol/g or less.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: December 24, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masanobu Ootsuka, Masahiro Terada, Hidetaka Kawamura, Akihiro Taya, Yohei Masada, Takaharu Aotani, Shoji Koike, Yutaka Yoshimasa
  • Patent number: 10280322
    Abstract: An ink including a first pigment, a second pigment, and water. The first pigment satisfies condition 1, the second pigment satisfies condition 2, and the content (% by mass) of the first pigment relative to the content (% by mass) of the second pigment based on a total mass of the ink is 1.7 times or more to 8.0 times or less in terms of mass ratio. Condition 1: When, to a pigment dispersion liquid containing the first pigment, calcium chloride is added so as to give a predetermined concentration, the particle diameter increase rate of the solid content is 2.0 nm/second or more. Condition 2: When, to a pigment dispersion liquid containing the second pigment, hydrochloric acid is added so as to give a predetermined concentration, the particle diameter increase rate of the solid content is 0.5 nm/second or less.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: May 7, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yohei Masada, Masahiro Terada, Hidetaka Kawamura, Akihiro Taya, Masanobu Ootsuka, Takaharu Aotani, Shoji Koike, Yutaka Yoshimasa
  • Patent number: 10253194
    Abstract: There is provided an ink including a pigment, resin particles, a surfactant, water-soluble organic compound, and water, in which: the content of the water-soluble organic compounds is 35 mass % or less based on a total mass of the ink; the water-soluble organic compound contains a first water-soluble organic compound being liquid at 25° C. and having a surface tension at 25° C.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: April 9, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yutaka Yoshimasa, Masahiro Terada, Hidetaka Kawamura, Akihiro Taya, Yohei Masada, Masanobu Ootsuka, Takaharu Aotani, Shoji Koike
  • Patent number: 10196532
    Abstract: Provided is an ink containing a pigment, a water-soluble organic solvent, and a surfactant represented by the following general formula (1), and having a viscosity at 25° C. of 5 mPa·s or more. The ink has a static surface tension of 27.1 mN/m or more and 35.0 mN/m or less, which is measured at 25° C. by a Wilhelmy method. The ink also has a dynamic surface tension at a bubble life time of 150 msec of 30.5 mN/m or more and 37.0 mN/m or less, which is measured at 25° C. by a maximum bubble pressure method.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: February 5, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hidetaka Kawamura, Masahiro Terada, Akihiro Taya, Yohei Masada, Masanobu Ootsuka, Takaharu Aotani, Yutaka Yoshimasa, Shoji Koike
  • Publication number: 20190031900
    Abstract: An aqueous ink according to the present invention is an aqueous ink for ink jet, containing a solvent A and a resin particle. The solvent A is alcohol of which aqueous solubility at 20° C. is 5% by mass or less, a vapor pressure at 20° C. is 0.5 mmHg or less and a surface tension at 20° C. is 30 mN/m or more. A content (% by mass) of the solvent A is 0.7 times or more to 7.0 times or less in terms of a ratio based on aqueous solubility (% by mass) of the solvent A at 20° C. The amount of a surface anionic functional group of the resin particle is 0.55 mmol/g or more to 2.00 mmol/g or less.
    Type: Application
    Filed: July 19, 2018
    Publication date: January 31, 2019
    Inventors: Masanobu Ootsuka, Masahiro Terada, Hidetaka Kawamura, Akihiro Taya, Yohei Masada, Takaharu Aotani, Shoji Koike, Yutaka Yoshimasa
  • Patent number: 10190010
    Abstract: Provided is an ink containing a pigment, a water-soluble organic solvent, and a surfactant, and having a viscosity at 25° C. of 5 mPa·s or more. The ink has a static surface tension of 30.5 mN/m or more to 35.0 mN/m or less, which is measured at 25° C. by a Wilhelmy method. The ink also has a dynamic surface tension at a bubble life time of 150 msec of 30.5 mN/m or more to 37.0 mN/m or less, which is measured at 25° C. by a maximum bubble pressure method.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: January 29, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hidetaka Kawamura, Masahiro Terada, Akihiro Taya, Yohei Masada, Masanobu Ootsuka, Takaharu Aotani, Yutaka Yoshimasa, Shoji Koike
  • Patent number: 10167399
    Abstract: Provided is Ink including a pigment, a resin, a water-soluble organic solvent, and water, wherein a solid content of first liquid as prepared by diluting the ink 500-fold with water and by adding CaCl2 at a concentration of 1.5 mM has a rate of aggregation of 1.5 nm/second or less; and a solid content of second liquid as prepared, after the ink has been stored at 60° C. for 2 weeks, by diluting the ink 500-fold with water and by adding CaCl2 at a concentration of 5 mM has a rate of aggregation of 2.0 nm/second or more.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: January 1, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yohei Masada, Masahiro Terada, Hidetaka Kawamura, Akihiro Taya, Masanobu Ootsuka, Takaharu Aotani, Shoji Koike, Yutaka Yoshimasa
  • Publication number: 20180371272
    Abstract: An aqueous inkjet ink of the present invention contains: a solvent A; a resin particle; and a color material, wherein the solvent A is an alcohol having a water solubility at 20° C. of 5% by mass or less, the vapor pressure at 20° C. of 0.5 mmHg or less, and the surface tension at 20° C. of 30 mN/m or more; the ratio of the content (% by mass) of the solvent A to the water solubility (% by mass) of the solvent A at 20° C. is 0.7 or more and 7.0 or less; and the SP value of the resin particle is 8.1 (cal/cm3)0.5 or more and 9.7 (cal/cm3)0.5 or less.
    Type: Application
    Filed: June 18, 2018
    Publication date: December 27, 2018
    Inventors: Hidetaka Kawamura, Masahiro Terada, Akihiro Taya, Yohei Masada, Masanobu Ootsuka, Takaharu Aotani, Yutaka Yoshimasa, Shoji Koike
  • Publication number: 20180319164
    Abstract: An image printing method includes the step of applying at least two inks that contain a color pigment, resin particles, and water onto a printing medium by ejecting the inks using an inkjet printing apparatus. The inkjet printing apparatus includes at least two printing heads sequentially arranged in a printing medium conveying direction, the printing medium is normal paper or a high-absorbency printing medium, a rub fastness additive is contained in a first ink ejected from at least a first printing head that is located at an uppermost-stream position in the printing medium conveying direction of the at least two printing heads, and the content of the rub fastness additive in an ink ejected from a printing head that is located at a position downstream of the first printing head in the printing medium conveying direction is less than the content of the rub fastness additive in the first ink.
    Type: Application
    Filed: July 18, 2018
    Publication date: November 8, 2018
    Inventors: Takaharu Aotani, Masahiro Terada, Hidetaka Kawamura, Akihiro Taya, Yohei Masada, Masanobu Ootsuka, Shoji Koike, Yutaka Yoshimasa