Patents by Inventor Naoto TASHIMA

Naoto TASHIMA 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: 20250026703
    Abstract: A tricyclodecane dimethanol composition comprising tricyclodecane dimethanols, wherein the tricyclodecane dimethanols comprise a chiral compound A, one of whose enantiomers represented by the following formula (I), a chiral compound B, one of whose enantiomers represented by the following formula (II), and a chiral compound C, one of whose enantiomers represented by the following formula (III), and a peak area Xc of the chiral compound C in a gas chromatogram and a total peak areas Xt of tricyclodecane dimethanols in a gas chromatogram, which are detected by a gas chromatography, satisfy Xc/Xt?0.35.
    Type: Application
    Filed: September 17, 2024
    Publication date: January 23, 2025
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Hiroki SAIJO, Naoto TASHIMA, Yoshiyuki TANAKA
  • Publication number: 20240368062
    Abstract: A method for producing a polyhydric alcohol includes: subjecting a crude reaction solution obtained by performing a reduction reaction in the presence of a hydrogenation catalyst and hydrogen using a polyhydric aldehyde having an alicyclic structure as a starting material to distillation purification. The distillation purification is performed after a content of a metal element in the crude reaction solution is 30 ppm by mass or less, and preferably 10 mass ppm or less.
    Type: Application
    Filed: July 19, 2024
    Publication date: November 7, 2024
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Naoto TASHIMA, Kazuaki SUNAMI, Hiroki HINOISHI