Patents by Inventor Norifumi Miwa

Norifumi Miwa 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: 20210189048
    Abstract: This resin film is characterized by comprising a segment represented by chemical formula 1 and a segment represented by chemical formula 2, and by satisfying condition 1. Condition 1: In an FT-IR spectrum of the resin film, a minimum value (T1) of transmittance at not lower than 3250 cm-1 but lower than 3350 cm-1 and a minimum value (T2) of transmittance at not lower than 3350 cm-1 but lower than 3450 cm-1 satisfy formula 1: T2<T1??Formula 1: The present invention provides: a resin film that has flexibility and high restoration properties and simultaneously exhibits heat resistance; and a laminated body having said resin film.
    Type: Application
    Filed: August 2, 2019
    Publication date: June 24, 2021
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Yasuyuki ISHIDA, Norifumi MIWA, Kensuke YAHIRO
  • Patent number: 9469789
    Abstract: A laminated film has a layer (A) on at least one side of a base film, wherein resin contained in the layer (A) has (1) a (poly)caprolactone segment and (2) a urethane bond and, in measurement using a micro hardness tester, a maximum displacement amount in a thickness direction of the layer (A) is 1.0 to 3.0 ?m and a creep displacement amount in the thickness direction of the layer (A) is 0.2 to 0.5 ?m when a load of 0.5 mN is applied for 10 seconds, and a permanent displacement amount in the thickness direction of the layer (A) is 0.3 to 0.65 ?m when the load is released to 0 mN.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: October 18, 2016
    Assignee: Toray Industries, Inc.
    Inventors: Kazumori Sonoda, Syunichi Osada, Takashi Mimura, Yoshihiro Masuda, Norifumi Miwa, Takayoshi Kirimoto, Ippei Ozeki
  • Publication number: 20140303316
    Abstract: A laminated film has a layer (A) on at least one side of a base film, wherein resin contained in the layer (A) has (1) a (poly)caprolactone segment and (2) a urethane bond and, in measurement using a micro hardness tester, a maximum displacement amount in a thickness direction of the layer (A) is 1.0 to 3.0 ?m and a creep displacement amount in the thickness direction of the layer (A) is 0.2 to 0.5 ?m when a load of 0.5 mN is applied for 10 seconds, and a permanent displacement amount in the thickness direction of the layer (A) is 0.3 to 0.65 ?m when the load is released to 0 mN.
    Type: Application
    Filed: December 14, 2012
    Publication date: October 9, 2014
    Inventors: Kazumori Sonoda, Syunichi Osada, Takashi Mimura, Yoshihiro Masuda, Norifumi Miwa, Takayoshi Kirimoto, Ippei Ozeki