Patents by Inventor Eriko Fukumoto

Eriko Fukumoto 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 producing chroman
    Patent number: 5495026
    Abstract: A phenol, a formaldehyde and an unsaturated compound having carbon-carbon double bond are reacted in the presence of a secondary amine and an acid at a temperature of 100.degree. to 250.degree. C., to give a chroman.
    Type: Grant
    Filed: September 13, 1994
    Date of Patent: February 27, 1996
    Assignee: Kuraray Company Ltd.
    Inventors: Eriko Fukumoto, Masahiro Torihara, Yoshin Tamai