Patents by Inventor Mamiko SANO

Mamiko SANO 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: 11890845
    Abstract: A decorative sheet comprises a substrate layer; a pattern layer provided on the first front surface of the substrate layer; and a thermoplastic resin layer provided on the second front surface of the pattern layer. A test piece of 8 mm width from the decorative sheet is taken; the storage modulus is measured with an initial chuck distance of 10.77 mm, a start temperature of 30° C., an end temperature of 150° C., a temperature increase rate of 5° C./min, and a measurement frequency of 1.0 Hz. The ratio of the difference between the second storage modulus and a third storage modulus when the decorative sheet changes from the transition region to a rubbery flat region to the difference between a first storage modulus when the environmental temperature is 30° C. and a second storage modulus when the decorative sheet changes from a glassy region to a transition region is 3.5 or less.
    Type: Grant
    Filed: May 25, 2022
    Date of Patent: February 6, 2024
    Assignee: TOPPAN PRINTING CO., LTD.
    Inventors: Ryosuke Takahashi, Mamiko Sano, Hayato Funaki
  • Publication number: 20230382077
    Abstract: A decorative sheet comprises a substrate layer; a pattern layer provided on the first front surface of the substrate layer; and a thermoplastic resin layer provided on the second front surface of the pattern layer. A test piece of 8 mm width from the decorative sheet is taken; the storage modulus is measured with an initial chuck distance of 10.77 mm, a start temperature of 30° C., an end temperature of 150° C., a temperature increase rate of 5° C./min, and a measurement frequency of 1.0 Hz. The ratio of the difference between the second storage modulus and a third storage modulus when the decorative sheet changes from the transition region to a rubbery flat region to the difference between a first storage modulus when the environmental temperature is 30° C. and a second storage modulus when the decorative sheet changes from a glassy region to a transition region is 3.5 or less.
    Type: Application
    Filed: August 2, 2023
    Publication date: November 30, 2023
    Applicant: Toppan Inc.
    Inventors: Ryosuke TAKAHASHI, Mamiko SANO, Hayato FUNAKI
  • Patent number: 11660836
    Abstract: A decorative sheet comprises a substrate layer; a pattern layer provided on the first front surface of the substrate layer; and a thermoplastic resin layer provided on the second front surface of the pattern layer. A test piece of 8 mm width from the decorative sheet is taken; the storage modulus is measured with an initial chuck distance of 10.77 mm, a start temperature of 30° C., an end temperature of 150° C., a temperature increase rate of 5° C./min, and a measurement frequency of 1.0 Hz. The ratio of the difference between the second storage modulus and a third storage modulus when the decorative sheet changes from the transition region to a rubbery flat region to the difference between a first storage modulus when the environmental temperature is 30° C. and a second storage modulus when the decorative sheet changes from a glassy region to a transition region is 3.5 or less.
    Type: Grant
    Filed: July 27, 2020
    Date of Patent: May 30, 2023
    Assignee: TOPPAN PRINTING CO., LTD.
    Inventors: Ryosuke Takahashi, Mamiko Sano, Hayato Funaki
  • Patent number: 11597178
    Abstract: A decorative sheet comprises a substrate layer; a pattern layer provided on the first front surface of the substrate layer; and a thermoplastic resin layer provided on the second front surface of the pattern layer. A test piece of 8 mm width from the decorative sheet is taken; the storage modulus is measured with an initial chuck distance of 10.77 mm, a start temperature of 30° C., an end temperature of 150° C., a temperature increase rate of 5° C./min, and a measurement frequency of 1.0 Hz. The ratio of the difference between the second storage modulus and a third storage modulus when the decorative sheet changes from the transition region to a rubbery flat region to the difference between a first storage modulus when the environmental temperature is 30° C. and a second storage modulus when the decorative sheet changes from a glassy region to a transition region is 3.5 or less.
    Type: Grant
    Filed: July 27, 2020
    Date of Patent: March 7, 2023
    Assignee: TOPPAN PRINTING CO., LTD.
    Inventors: Ryosuke Takahashi, Mamiko Sano, Hayato Funaki
  • Publication number: 20220281205
    Abstract: A decorative sheet comprises a substrate layer; a pattern layer provided on the first front surface of the substrate layer; and a thermoplastic resin layer provided on the second front surface of the pattern layer. A test piece of 8 mm width from the decorative sheet is taken; the storage modulus is measured with an initial chuck distance of 10.77 mm, a start temperature of 30° C., an end temperature of 150° C., a temperature increase rate of 5° C./min, and a measurement frequency of 1.0 Hz. The ratio of the difference between the second storage modulus and a third storage modulus when the decorative sheet changes from the transition region to a rubbery flat region to the difference between a first storage modulus when the environmental temperature is 30° C. and a second storage modulus when the decorative sheet changes from a glassy region to a transition region is 3.5 or less.
    Type: Application
    Filed: May 25, 2022
    Publication date: September 8, 2022
    Applicant: Toppan Inc.
    Inventors: Ryosuke TAKAHASHI, Mamiko SANO, Hayato FUNAKI
  • Publication number: 20210362462
    Abstract: A decorative sheet comprises a transparent resin layer containing a polyolefin-based resin, and a surface protective layer containing a thermosetting resin and provided on a front surface side of the transparent resin layer. Further, an uneven pattern is provided on a front surface of the surface protective layer. A percentage of a surface waviness of the decorative sheet after molding to a surface waviness of the decorative sheet before molding, which is defined as a residual embossing ratio, is 30% or more; and an absolute value of a difference between a gloss of a surface of the decorative sheet before molding and a gloss of the surface of the decorative sheet after molding, which is defined as a gloss difference, is less than 5%.
    Type: Application
    Filed: August 9, 2021
    Publication date: November 25, 2021
    Applicant: Toppan Printing Co., Ltd.
    Inventor: Mamiko SANO
  • Publication number: 20200353713
    Abstract: A decorative sheet comprises a substrate layer; a pattern layer provided on the first front surface of the substrate layer; and a thermoplastic resin layer provided on the second front surface of the pattern layer. A test piece of 8 mm width from the decorative sheet is taken; the storage modulus is measured with an initial chuck distance of 10.77 mm, a start temperature of 30° C., an end temperature of 150° C., a temperature increase rate of 5° C./min, and a measurement frequency of 1.0 Hz. The ratio of the difference between the second storage modulus and a third storage modulus when the decorative sheet changes from the transition region to a rubbery flat region to the difference between a first storage modulus when the environmental temperature is 30° C. and a second storage modulus when the decorative sheet changes from a glassy region to a transition region is 3.5 or less.
    Type: Application
    Filed: July 27, 2020
    Publication date: November 12, 2020
    Applicant: TOPPAN PRINTING CO.,LTD.
    Inventors: Ryosuke TAKAHASHI, Mamiko SANO, Hayato FUNAKI