Patents by Inventor Yoshiaki Shimakawa

Yoshiaki Shimakawa 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).

  • Method for drying coking coals to be charged in a coke oven
    Patent number: 4492042
    Abstract: Disclosed are methods for drying coking coals to be charged in coke ovens utilizing a heating medium which recovers the sensible heat contained in the gas generated in the coke ovens as a heating source for drying coking coals to a desired moisture content. Chiefly based on the moisture of coking coals before drying, the flow rate of the heat medium to the coke dryer is controlled or a hot blast generated in a separate heating system is used for the drying.
    Type: Grant
    Filed: August 26, 1982
    Date of Patent: January 8, 1985
    Assignee: Nippon Steel Corporation
    Inventors: Norio Otabe, Yoshiaki Shimakawa, Hiroshi Uematsu