Patents by Inventor Hideaki Hatayama

Hideaki Hatayama 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).

  • Fire-extinguishing composition
    Patent number: 4822498
    Abstract: A fire-extinguishing composition comprising a fluorine-containing surfactant of the formula: ##STR1## wherein R.sub.f is a polyfluoroalkyl group having from 3 to 20 carbon atoms, X is a bivalent connecting group containing an ether-type oxygen atom, R is an alkylene group, Y is ##STR2## wherein Z.crclbar. is an anionic group-containing alkyl group, R.sup.1 is a hydrogen atom, an alkyl group or a hydroxyalkyl group, or forms together with R.sup.2 an alkylene group, R.sup.2 is a hydrogen atom, an alkyl group or a hydroxyalkyl group, or forms together with R.sup.1 an alkylene group, and R.sup.3 is a hydrogen atom, an alkyl group or a hydroxyalkyl group.
    Type: Grant
    Filed: August 5, 1987
    Date of Patent: April 18, 1989
    Assignee: Asahi Glass Company Ltd.
    Inventors: Sachio Otoshi, Hideaki Hatayama