Patents by Inventor Naoyoshi Hara

Naoyoshi Hara 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).

  • Production of cokes
    Patent number: 3956101
    Abstract: High grade cokes are produced by a simple expedient such that a raw material oil is charged into a coking drum and is subjected therein to a two step operation, namely reforming of the oil and subsequent coking under bubbling into the oil of a heated non-oxidizing gas. No fluidized bed of the oil to be coked is formed.
    Type: Grant
    Filed: January 14, 1974
    Date of Patent: May 11, 1976
    Assignees: Kureha Kagaku Kogyo Kabushiki Kaisha, Chiyoda Kako Kensetsu Kabushiki Kaisha
    Inventors: Naoyoshi Hara, Akihiro Fujimori, Hideo Hashimoto, Takuji Hosoi, Takaaki Aiba, Tsuneo Okamoto