Patents Assigned to Shigeo Oki
  • Method for controlling cockroaches
    Patent number: 4999201
    Abstract: Cockroaches can be effectively eliminated or expelled by introducing ozone into a closed space where the cockroaches are expected to inhabit so as to expose an roach-aggregation pheromone contained in cockroach feces to the ozone at a sufficient concentration, to thereby denature the aggregation pheromone to a roach-repellent substance.
    Type: Grant
    Filed: October 18, 1989
    Date of Patent: March 12, 1991
    Assignee: Shigeo Oki
    Inventors: Kiku Okamoto, Shigeo Oki