Patents by Inventor Osamu Shitamori

Osamu Shitamori 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).

  • Subaqueous heater apparatus
    Patent number: 4119082
    Abstract: A subaqueous heater apparatus of simple construction adapted for use by a human diver who in underwater activities needs to maintain his vital warmth. The apparatus contains uncombined calcium which under the gradual, controlled supply of water effects chemical reaction with evolution of heat. The supply of such water into the apparatus by capillary action is so controlled that the apparatus serves as an optimum body-warmer to the diver.
    Type: Grant
    Filed: March 25, 1977
    Date of Patent: October 10, 1978
    Assignee: Katsuya Miyamori
    Inventors: Katsuya Miyamori, Toru Murai, Osamu Shitamori