Patents by Inventor Takaharu Aotani
Takaharu Aotani 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: 20230387459Abstract: 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: ApplicationFiled: August 15, 2023Publication date: November 30, 2023Inventors: Kentaro DOGUCHI, Yohei MASADA, Takaharu AOTANI, Hiroshi TANIUCHI
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Publication number: 20230327128Abstract: Active material particles for use in an active material layer include a particle portion containing an active material, and a protective layer covering the surface of the particle portion.Type: ApplicationFiled: June 13, 2023Publication date: October 12, 2023Inventors: TAKAHARU AOTANI, KENTA KUBO, HIROSHI TANIUCHI, HIROKAZU USAMI
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Publication number: 20230317943Abstract: A solid-state secondary battery includes an active material layer having a plurality of active material particles in a layer thickness direction, an electrolyte layer that performs transfer of active material ions with the active material particles, and a current collector layer that performs transfer of electrons with the active material particles. The active material layer has, in the layer thickness direction, a first region where a specific surface area of the active material particles is lower than that in another region in the layer thickness direction.Type: ApplicationFiled: June 5, 2023Publication date: October 5, 2023Inventors: HIROSHI TANIUCHI, KENTA KUBO, HIROKAZU USAMI, TAKAHARU AOTANI
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Publication number: 20230307636Abstract: An active material particle or anode containing a lithium cobalt oxide and having a diffraction angle peak at an X-ray diffraction angle of 19.2 degrees or more and 19.7 degrees or less by a 2? method.Type: ApplicationFiled: May 30, 2023Publication date: September 28, 2023Inventors: KENTA KUBO, HIROKAZU USAMI, HIROSHI TANIUCHI, TAKAHARU AOTANI
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Patent number: 11738504Abstract: 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: GrantFiled: November 22, 2019Date of Patent: August 29, 2023Assignee: CANON KABUSHIKI KAISHAInventors: Akira Sugiyama, Hirokazu Usami, Yohei Masada, Takaharu Aotani
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Publication number: 20230219293Abstract: 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: ApplicationFiled: March 15, 2023Publication date: July 13, 2023Inventors: Takaharu Aotani, Yohei Masada
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Patent number: 11633787Abstract: 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: GrantFiled: December 19, 2019Date of Patent: April 25, 2023Assignee: CANON KABUSHIKI KAISHAInventors: Takaharu Aotani, Yohei Masada
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Publication number: 20220332999Abstract: 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: ApplicationFiled: April 25, 2022Publication date: October 20, 2022Inventors: Yohei Masada, Takaharu Aotani
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Patent number: 10889116Abstract: 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: GrantFiled: July 18, 2018Date of Patent: January 12, 2021Assignee: CANON KABUSHIKI KAISHAInventors: Takaharu Aotani, Masahiro Terada, Hidetaka Kawamura, Akihiro Taya, Yohei Masada, Masanobu Ootsuka, Shoji Koike, Yutaka Yoshimasa
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Patent number: 10836921Abstract: 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: GrantFiled: December 12, 2017Date of Patent: November 17, 2020Assignee: Canon Kabushiki KaishaInventors: Akihiro Taya, Masahiro Terada, Hidetaka Kawamura, Yohei Masada, Masanobu Ootsuka, Takaharu Aotani, Yutaka Yoshimasa, Shoji Koike
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Publication number: 20200339830Abstract: 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: ApplicationFiled: April 20, 2020Publication date: October 29, 2020Inventors: Yohei Masada, Takaharu Aotani
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Publication number: 20200206812Abstract: 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: ApplicationFiled: December 19, 2019Publication date: July 2, 2020Inventors: Takaharu Aotani, Yohei Masada
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Publication number: 20200086559Abstract: 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: ApplicationFiled: November 22, 2019Publication date: March 19, 2020Inventors: Akira Sugiyama, Hirokazu Usami, Yohei Masada, Takaharu Aotani
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Patent number: 10525725Abstract: 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: GrantFiled: September 6, 2017Date of Patent: January 7, 2020Assignee: Canon Kabushiki KaishaInventors: Akihiro Taya, Masahiro Terada, Hidetaka Kawamura, Yohei Masada, Masanobu Ootsuka, Takaharu Aotani, Yutaka Yoshimasa, Shoji Koike
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Patent number: 10513623Abstract: 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: GrantFiled: July 19, 2018Date of Patent: December 24, 2019Assignee: Canon Kabushiki KaishaInventors: Masanobu Ootsuka, Masahiro Terada, Hidetaka Kawamura, Akihiro Taya, Yohei Masada, Takaharu Aotani, Shoji Koike, Yutaka Yoshimasa
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Patent number: 10280322Abstract: 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: GrantFiled: October 11, 2017Date of Patent: May 7, 2019Assignee: Canon Kabushiki KaishaInventors: Yohei Masada, Masahiro Terada, Hidetaka Kawamura, Akihiro Taya, Masanobu Ootsuka, Takaharu Aotani, Shoji Koike, Yutaka Yoshimasa
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Patent number: 10253194Abstract: 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: GrantFiled: September 30, 2016Date of Patent: April 9, 2019Assignee: Canon Kabushiki KaishaInventors: Yutaka Yoshimasa, Masahiro Terada, Hidetaka Kawamura, Akihiro Taya, Yohei Masada, Masanobu Ootsuka, Takaharu Aotani, Shoji Koike
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Patent number: 10196532Abstract: 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: GrantFiled: September 30, 2016Date of Patent: February 5, 2019Assignee: Canon Kabushiki KaishaInventors: Hidetaka Kawamura, Masahiro Terada, Akihiro Taya, Yohei Masada, Masanobu Ootsuka, Takaharu Aotani, Yutaka Yoshimasa, Shoji Koike
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Publication number: 20190031900Abstract: 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: ApplicationFiled: July 19, 2018Publication date: January 31, 2019Inventors: Masanobu Ootsuka, Masahiro Terada, Hidetaka Kawamura, Akihiro Taya, Yohei Masada, Takaharu Aotani, Shoji Koike, Yutaka Yoshimasa
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Patent number: 10190010Abstract: 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: GrantFiled: September 30, 2016Date of Patent: January 29, 2019Assignee: Canon Kabushiki KaishaInventors: Hidetaka Kawamura, Masahiro Terada, Akihiro Taya, Yohei Masada, Masanobu Ootsuka, Takaharu Aotani, Yutaka Yoshimasa, Shoji Koike