Patents by Inventor Hanji Oana

Hanji Oana 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).

  • Rotary-type counter-current heat exchanger
    Patent number: 4235608
    Abstract: A heat exchanging element for use in a rotary-type counter-current heat exchanger is provided. The heat exchanging element comprises a gathering member composed of natural fiber, especially coconut fiber. And a rotary-type counter-current heat exchanger is provided. The heat exchanger comprises a casing, a rotary frame rotatably supported by the casing, the rotary frame having a shaft, a pair of rotor rims maintaining a predetermined distance in an axial direction of the shaft and a plurality of rotor spokes, and the heat exchanging element accommodated in the rotary frame.
    Type: Grant
    Filed: September 5, 1978
    Date of Patent: November 25, 1980
    Assignee: ABC Trading Co., Ltd.
    Inventors: Hiroshi Watanabe, Ryushi Aoyama, Yasuhira Hironaka, Hanji Oana