Patents by Inventor Masaoki Oda

Masaoki Oda 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 the production of alkali metal hypophosphites
    Patent number: 5225052
    Abstract: High purity alkali metal hypophosphites are produced in high efficiency by a simple step of using no other separating agents than white phosphorus, alkali metal hydroxides and water as reaction raw materials, resulting in no need of a complicated procedure for removing impurities.
    Type: Grant
    Filed: May 29, 1991
    Date of Patent: July 6, 1993
    Assignee: Rinkagaku Kogyo Co., Ltd.
    Inventors: Yoshihiro Takikawa, Masaoki Oda, Takashi Takeuti, Katsutoshi Shibata, Atsushi Kanayama