Patents by Inventor Masahige Kubo

Masahige Kubo 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 brominated acenaphthylene and its condensates
    Patent number: 4760211
    Abstract: A process for recovering brominated acenaphthylene and its condensate in the form of powder, comprising dropping a solution of brominated acenaphthylene and its condensate produced from acenaphthene by reactions of bromination, condensation and dehydrobromination into hot water containing a carboxylic acid ester of polyoxyalkylene sorbitan, while the solvent is being distilled off, to recover the brominated acenaphthylene and its condensate in the form of powder dispersed in water.
    Type: Grant
    Filed: September 18, 1986
    Date of Patent: July 26, 1988
    Assignee: Toyo Soda Manufacturing Co., Ltd.
    Inventors: Masahige Kubo, Koji Kawabata, Yukihiro Tsutsumi