Patents by Inventor Isao Hirose

Isao Hirose 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 oxidizing olefins
    Patent number: 3950440
    Abstract: A process for the manufacture of an alkylene glycol having 2 - 4 carbon atoms, which comprises oxidizing an unsubstituted aliphatic olefin having 2 - 4 carbon atoms by contact with a water-soluble thallic salt in the presence of water, characterised in that at least one kind of ions selected from ions of chlorine and bromine is present in the reaction system in an amount such that the atomic ratio of the said ion or ions to thallium atom is at least 5, and said oxidation is carried out at a temperature of 120.degree.- 200.degree.C.
    Type: Grant
    Filed: March 9, 1970
    Date of Patent: April 13, 1976
    Assignee: Teijin Ltd.
    Inventors: Isao Hirose, Kazutoshi Funabashi, Takeshi Fujii, Kiyoshi Kawajiri