Patents by Inventor Susumu Yoneda

Susumu Yoneda 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).

  • Process for manufacturing crystalline maltitol and crystalline mixture solid containing the same
    Patent number: 5932015
    Abstract: Provides an economical method for manufacturing high-value added crystalline maltitol and crystalline mixture solid containing this by means of a process wherein a syrup with a maltose content of 40 to 75% by weight in the solid component is subjected to catalytic hydrogenation, the sugar alcohol syrup is then subjected to chromatographic separation to produce a maltitol-containing syrup fraction with a high maltitol content in the solid component, and the maltitol-containing syrup fraction is then subjected to chromatographic separation.
    Type: Grant
    Filed: July 3, 1997
    Date of Patent: August 3, 1999
    Assignee: Towa Chemical Industry Co., Ltd.
    Inventors: Susumu Yoneda, Yoshiaki Tateno, Mitsuo Magara, Naoki Okamoto
  • Process for preparing trans-1,4-cyclohexanedimethanol and powder of the same
    Patent number: 4999090
    Abstract: A process of preparing industrially trans-1,4-cyclohexanedimethanol of high purity by distilling a mixture of cis- and trans-1,4-cyclohexanedimethanol in the presence of alkali, or by heating a mixture of cis- and trans-1,4-cyclohexanedimethanol in the presence of alkali and then distilling the heated mixture, and a process of preparing powdered trans-1,4-cyclohexanedimethanol by pulverizing the distillate obtained above.
    Type: Grant
    Filed: July 5, 1989
    Date of Patent: March 12, 1991
    Assignee: Towa Chemical Industry Co., Ltd.
    Inventors: Yoshiaki Tateno, Susumu Yoneda, Naoki Okamoto, Yoshibumi Ishii, Kazuaki Kato