Patents by Inventor Kaori Sakaguchi

Kaori Sakaguchi 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: 11825632
    Abstract: The present invention provides a thermally conductive insulating sheet having appropriate fluidity upon being heated and pressurized, and free from of the possibility of a material leaking to the outside beyond the original size of the sheet. The thermally conductive insulating sheet according to the present invention contains an uncured material and/or a semi-cured material of a binder resin (R) which is a thermosetting resin. In the present invention, a complex viscosity in a temperature range of 100-200° C. is 10,000-150,000 Pa·s, a ratio (?/?) of the maximum value (?) to the minimum value (?) of the complex viscosity in said temperature range is 1.0-4.0, and the flow value is 90-100%. Flow value(%)=W2/W1×100.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: November 21, 2023
    Assignees: TOYO INK SC HOLDINGS CO., LTD., TOYOCHEM CO., LTD.
    Inventors: Toshiichi Sawaguchi, Naohiro Tanaka, Kaori Sakaguchi, Kenji Andou, Hidenobu Kobayashi
  • Patent number: 11407201
    Abstract: A composite member (1) satisfies the following expressions. X/(E×|CTE(B)?CTE(A)|)?50, X/(E×|CTE(B)?CTE(C)|)?50, Y/|CTE(B)?CTE(A)|×L(BA)?50, and Y/|CTE(B)?CTE(C)|×L(BC)?50. X: shear bond strength (MPa) between the heat dissipating base substrate and heat generating member, Y: fracture elongation of the thermoconductive insulating adhesive film, E: modulus of elasticity (MPa) of the thermoconductive insulating adhesive film, CTE(A): linear expansion coefficient (° C.?1) of the heat dissipating base substrate, CTE(B): linear expansion coefficient (° C.?1) of the thermoconductive insulating adhesive film, CTE(C): linear expansion coefficient (° C.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: August 9, 2022
    Assignees: TOYO INK SC HOLDINGS CO., LTD., TOYOCHEM CO., LTD.
    Inventors: Toshiichi Sawaguchi, Naohiro Tanaka, Kaori Sakaguchi, Kenji Andou, Hidenobu Kobayashi
  • Publication number: 20210129489
    Abstract: A composite member (1) satisfies the following expressions. X/(E×|CTE(B)?CTE(A)|)?50, X/(E×|CTE(B)?CTE(C)|)?50, Y/|CTE(B)?CTE(A)|×L(BA)?50, and Y/|CTE(B)?CTE(C)|×L(BC)?50. X: shear bond strength (MPa) between the heat dissipating base substrate and heat generating member, Y: fracture elongation of the thermoconductive insulating adhesive film, E: modulus of elasticity (MPa) of the thermoconductive insulating adhesive film, CTE(A): linear expansion coefficient (° C.?1) of the heat dissipating base substrate, CTE(B): linear expansion coefficient (° C.?1) of the thermoconductive insulating adhesive film, CTE(C): linear expansion coefficient (° C.
    Type: Application
    Filed: August 13, 2018
    Publication date: May 6, 2021
    Applicants: TOYO INK SC HOLDINGS CO., LTD., TOYOCHEM CO., LTD.
    Inventors: Toshiichi SAWAGUCHI, Naohiro TANAKA, Kaori SAKAGUCHI, Kenji ANDOU, Hidenobu KOBAYASHI
  • Publication number: 20200275581
    Abstract: The present invention provides a thermally conductive insulating sheet having appropriate fluidity upon being heated and pressurized, and free from of the possibility of a material leaking to the outside beyond the original size of the sheet. The thermally conductive insulating sheet according to the present invention contains an uncured material and/or a semi-cured material of a binder resin (R) which is a thermosetting resin. In the present invention, a complex viscosity in a temperature range of 100-200° C. is 10,000-150,000 Pa·s, a ratio (?/?) of the maximum value (?) to the minimum value (?) of the complex viscosity in said temperature range is 1.0-4.0, and the flow value is 90-100%. Flow value(%)=W2/W1×100.
    Type: Application
    Filed: September 14, 2018
    Publication date: August 27, 2020
    Applicants: TOYO INK SC HOLDINGS CO., LTD., TOYOCHEM CO., LTD.
    Inventors: Toshiichi SAWAGUCHI, Naohiro TANAKA, Kaori SAKAGUCHI, Kenji ANDOU, Hidenobu KOBAYASHI
  • Patent number: 10370573
    Abstract: An object of the present invention is to provide a thermal conductivity-giving material capable of giving substantially the same level of a thermal conductivity as that of the conventional material by using a smaller amount thereof than that conventionally used or giving a higher thermal conductivity than that of the conventional material by using substantially the same amount thereof as that conventionally used. The aforementioned problem can be solved by an easily deformable aggregate (D) comprising 100 pts·mass of thermally conductive particles (A) having an average primary particle diameter of 0.1 to 10 ?m, and 0.1 to 30 pts·mass of an organic binding agent (B), in which the easily deformable aggregate (D) has an average particle diameter of 2 to 100 ?m, and an average compressive force required for a 10% compressive deformation rate is 5 mN or lower.
    Type: Grant
    Filed: May 17, 2013
    Date of Patent: August 6, 2019
    Assignee: TOYO INK SC HOLDINGS CO., LTD.
    Inventors: Kaori Sakaguchi, Taiki Sakamoto, Atsushi Nakazato, Takanori Itoh, Takahiro Matsuzawa, Daisuke Kishi
  • Publication number: 20150110985
    Abstract: An object of the present invention is to provide a thermal conductivity-giving material capable of giving substantially the same level of a thermal conductivity as that of the conventional material by using a smaller amount thereof than that conventionally used or giving a higher thermal conductivity than that of the conventional material by using substantially the same amount thereof as that conventionally used. The aforementioned problem can be solved by an easily deformable aggregate (D) comprising 100 pts·mass of thermally conductive particles (A) having an average primary particle diameter of 0.1 to 10 ?m, and 0.1 to 30 pts·mass of an organic binding agent (B), in which the easily deformable aggregate (D) has an average particle diameter of 2 to 100 ?m, and an average compressive force required for a 10% compressive deformation rate is 5 mN or lower.
    Type: Application
    Filed: May 17, 2013
    Publication date: April 23, 2015
    Applicant: TOYO INK SC HOLDINGS CO., LTD.
    Inventors: Kaori Sakaguchi, Taiki Sakamoto, Atsushi Nakazato, Takanori Itoh, Takahiro Matsuzawa, Daisuke Kishi
  • Patent number: 8440110
    Abstract: Disclosed is a method for producing a metal particle dispersion wherein a metal compound is reduced by using carbodihydrazide represented by the formula (1) below or a polybasic acid polyhydrazide represented by the formula (2) below (wherein R represents an n-valent polybasic acid residue) in a liquid medium. By reducing the metal compound in the presence of a compound having a function preventing discoloration of the metal, there can be obtained a metal particle dispersion having excellent discoloration preventing properties. Metal particles produced by such methods have a uniform particle diameter and are excellent in dispersion stability. By using a conductive resin composition or conductive ink containing a metal particle dispersion obtained by such production methods, there can be formed a conductive coating film, such as a conductive circuit or an electromagnetic layer, having good characteristics.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: May 14, 2013
    Assignee: Toyo Ink Mfg Co., Ltd.
    Inventors: Kaori Sakaguchi, Kinya Shiraishi
  • Patent number: 8313800
    Abstract: A conductive coating film is formed on a substrate by bringing a conductive material covered with a protective material into contact with a material having anion exchange ability, through such a process wherein an anion exchange layer containing a material having anion exchange ability is formed on a substrate and then a layer containing a conductive material covered with a protective material is formed on the anion exchange layer, or alternatively through such a process wherein a layer containing a conductive material covered with a protective material is formed on a substrate and then an anion exchange layer containing a material having anion exchange ability is formed on the layer containing a conductive material. The anion exchange layer and the layer containing a conductive material may be formed by coating, printing or the like.
    Type: Grant
    Filed: April 26, 2007
    Date of Patent: November 20, 2012
    Assignee: Toyo Ink Mfg. Co., Ltd.
    Inventors: Kinya Shiraishi, Kaori Sakaguchi
  • Publication number: 20110175040
    Abstract: Disclosed is a method for producing a metal particle dispersion wherein a metal compound is reduced by using carbodihydrazide represented by the formula (1) below or a polybasic acid polyhydrazide represented by the formula (2) below (wherein R represents an n-valent polybasic acid residue) in a liquid medium. By reducing the metal compound in the presence of a compound having a function preventing discoloration of the metal, there can be obtained a metal particle dispersion having excellent discoloration preventing properties. Metal particles produced by such methods have a uniform particle diameter and are excellent in dispersion stability. By using a conductive resin composition or conductive ink containing a metal particle dispersion obtained by such production methods, there can be formed a conductive coating film, such as a conductive circuit or an electromagnetic layer, having good characteristics.
    Type: Application
    Filed: March 30, 2011
    Publication date: July 21, 2011
    Applicant: TOYO INK MFG CO., LTD.
    Inventors: Kaori SAKAGUCHI, Kinya SHIRAISHI
  • Patent number: 7981327
    Abstract: Disclosed is a method for producing a metal particle dispersion wherein a metal compound is reduced by using carbodihydrazide represented by the formula (1) below or a polybasic acid polyhydrazide represented by the formula (2) below (wherein R represents an n-valent polybasic acid residue) in a liquid medium. By reducing the metal compound in the presence of a compound having a function preventing discoloration of the metal, there can be obtained a metal particle dispersion having excellent discoloration preventing properties. Metal particles produced by such methods have a uniform particle diameter and are excellent in dispersion stability. By using a conductive resin composition or conductive ink containing a metal particle dispersion obtained by such production methods, there can be formed a conductive coating film, such as a conductive circuit or an electromagnetic layer, having good characteristics.
    Type: Grant
    Filed: October 13, 2006
    Date of Patent: July 19, 2011
    Assignee: Toyo Ink Mfg. Co. Ltd.
    Inventors: Kaori Sakaguchi, Kinya Shiraishi
  • Publication number: 20090258202
    Abstract: Disclosed is a method for producing a metal particle dispersion wherein a metal compound is reduced by using carbodihydrazide represented by the formula (1) below or a polybasic acid polyhydrazide represented by the formula (2) below (wherein R represents an n-valent polybasic acid residue) in a liquid medium. By reducing the metal compound in the presence of a compound having a function preventing discoloration of the metal, there can be obtained a metal particle dispersion having excellent discoloration preventing properties. Metal particles produced by such methods have a uniform particle diameter and are excellent in dispersion stability. By using a conductive resin composition or conductive ink containing a metal particle dispersion obtained by such production methods, there can be formed a conductive coating film, such as a conductive circuit or an electromagnetic layer, having good characteristics.
    Type: Application
    Filed: October 13, 2006
    Publication date: October 15, 2009
    Inventors: Kaori Sakaguchi, Kinya Shiraishi
  • Publication number: 20090258241
    Abstract: A conductive coating film is formed on a substrate by bringing a conductive material covered with a protective material into contact with a material having anion exchange ability, through such a process wherein an anion exchange layer containing a material having anion exchange ability is formed on a substrate and then a layer containing a conductive material covered with a protective material is formed on the anion exchange layer, or alternatively through such a process wherein a layer containing a conductive material covered with a protective material is formed on a substrate and then an anion exchange layer containing a material having anion exchange ability is formed on the layer containing a conductive material. The anion exchange layer and the layer containing a conductive material may be formed by coating, printing or the like.
    Type: Application
    Filed: April 26, 2007
    Publication date: October 15, 2009
    Inventors: Kinya Shiraishi, Kaori Sakaguchi