Patents by Inventor Masayuki Tsubota

Masayuki Tsubota 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).

  • HYDROXYALKANOIC ACID CRYSTAL PRODUCTION METHOD AND HYDROXYALKANOIC ACID CRYSTAL POLYMORPH
    Publication number: 20240101504
    Abstract: A method for producing a hydroxyalkanoic acid crystal, comprising freeze-drying a solution containing a hydroxyalkanoic acid, wherein based on the total amount of the hydroxyalkanoic acid taken as 100 mass %, (1) the R form content is 95 to 100 mass % or (2) the S form content is 95 to 100 mass %.
    Type: Application
    Filed: December 7, 2021
    Publication date: March 28, 2024
    Inventors: Masayuki SUGIMOTO, Jun TSUBOTA, Sae ISHIKAWA
  • MOLD RELEASE SHEET
    Publication number: 20190255809
    Abstract: A mold release sheet including a resin layer provided on a semi-aromatic polyimide resin film, wherein the resin layer contains an acid-modified polyolefin resin having a proportion of an acid-modified component of 2 to 6% by mass, and a crosslinking agent.
    Type: Application
    Filed: September 27, 2017
    Publication date: August 22, 2019
    Applicant: UNITIKA LTD.
    Inventors: Masayuki Tsubota, Atsuko Noda