Patents by Inventor Tatsushi Ono

Tatsushi Ono 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).

  • Organic phosphorus compounds and flame-retarded resin compositions containing the same
    Patent number: 5401788
    Abstract: Organic phosphorus compounds of the formula (I): ##STR1## wherein R.sub.1 and R.sub.2 are, the same or different, a C.sub.1-8 straight chain or branched chain alkyl group, an optionally substituted C.sub.6-12 aryl group; and A represents a bond, a lower alkylene group or --(OCH.sub.2 CH.sub.2).sub.n -- group, (n is an integer of 1 to 5), which are useful as flame-retardants.
    Type: Grant
    Filed: March 10, 1994
    Date of Patent: March 28, 1995
    Assignee: Daihachi Chemical Industry Co., Ltd.
    Inventors: Noriaki Tokuyasu, Tatsushi Ono, Katsumi Kameda