Patents by Inventor Tomoki SUGIHARA

Tomoki SUGIHARA 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: 12780976
    Abstract: A polyurethane dispersion is an aqueous dispersion of a polyurethane resin. The polyurethane resin is a reaction product of an isocyanate group-terminated prepolymer and a chain extender. The isocyanate group-terminated prepolymer includes a reaction product of a polyisocyanate component containing a xylylene diisocyanate, and an active hydrogen group-containing component containing a short-chain diol having 2 to 6 carbon atoms and an active hydrogen group-containing compound containing a hydrophilic group. The chain extender includes an ethylenediamine. A ratio of the ethylenediamine is 25 mol % or more with respect to the total amount of the chain extender.
    Type: Grant
    Filed: January 18, 2022
    Date of Patent: November 3, 2026
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Toshihiko Nakagawa, Kazuyuki Fukuda, Tomoki Sugihara
  • Publication number: 20260218005
    Abstract: A polyurethane dispersion contains a polyurethane resin. The polyurethane resin contains a reaction product of an isocyanate group-terminated prepolymer with a chain extender and/or an end-capping agent. The isocyanate group-terminated prepolymer contains a reaction product of a polyisocyanate component and an active hydrogen group-containing component. The active hydrogen group-containing component contains a polyol compound and an active hydrogen group-containing compound containing an anionic group. The anionic group is neutralized by a neutralizing agent. The neutralizing agent contains a monoamine compound having a primary amino group or a secondary amino group.
    Type: Application
    Filed: February 22, 2024
    Publication date: July 30, 2026
    Inventors: Toshihiko NAKAGAWA, Kazuyuki FUKUDA, Tomoki SUGIHARA, Yasuharu YAMADA
  • Publication number: 20250153469
    Abstract: A laminate 1 includes a substrate 2, an inorganic vapor deposition layer 3, an adhesive layer 5, and a resin film layer 6 in sequence. A barrier coat layer 4 is interposed between the substrate 2 and the inorganic vapor deposition layer 3 and/or between the inorganic vapor deposition layer 3 and the adhesive layer 5. The adhesive layer 5 has a thermal expansion coefficient of 100.0×10?5K?1 or less.
    Type: Application
    Filed: February 21, 2023
    Publication date: May 15, 2025
    Inventors: Tomoki SUGIHARA, Kazuyuki FUKUDA, Toshihiko NAKAGAWA, Chikako KOUDA, Yoshiki SHIMOKAWATOKO
  • Publication number: 20240101748
    Abstract: A polyurethane dispersion is an aqueous dispersion of a polyurethane resin. The polyurethane resin is a reaction product of an isocyanate group-terminated prepolymer and a chain extender. The isocyanate group-terminated prepolymer includes a reaction product of a polyisocyanate component containing a xylylene diisocyanate, and an active hydrogen group-containing component containing a short-chain diol having 2 to 6 carbon atoms and an active hydrogen group-containing compound containing a hydrophilic group. The chain extender includes an ethylenediamine. A ratio of the ethylenediamine is 25 mol % or more with respect to the total amount of the chain extender.
    Type: Application
    Filed: January 18, 2022
    Publication date: March 28, 2024
    Inventors: Toshihiko NAKAGAWA, Kazuyuki FUKUDA, Tomoki SUGIHARA