Patents by Inventor Yoshikatsu Takagi

Yoshikatsu Takagi 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 of removing air bubbles in a coating path before feeding a coating liquid
    Patent number: 5096602
    Abstract: A method of feeding a coating liquid into a path from a tank to a coating apparatus through a filter and a degassing apparatus by a pump, comprising the steps of preparing a cleaning liquid containing degassed warm water in advance and aqueous solution of low surface tension; pouring the cleaning liquid into the path through the filter by the pump to dissolve bubbles contained in the filter into the cleaning liquid; exhausting the cleaning liquid from the path; filling the path as far as the coating apparatus with the new cleaning liquid anew; and substituting a coating liquid for the cleaning liquid sequentially.
    Type: Grant
    Filed: December 31, 1990
    Date of Patent: March 17, 1992
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shingo Yamauchi, Yoshikatsu Takagi