Patents by Inventor Shin'ichi Fukumizu

Shin'ichi Fukumizu 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).

  • Process for extruding synthetic resin and die for use therein
    Patent number: 4217322
    Abstract: A process for extruding a synthetic resin while restricting the resin flow by positively furnishing the resin flow path surface of an extruding die near its resin flow outlet with frictional resistance relative to the resin disclosed also is an extruding die for practicing the above-described method.
    Type: Grant
    Filed: July 14, 1978
    Date of Patent: August 12, 1980
    Assignee: Kobe Steel, Limited
    Inventors: Katsumi Sugano, Takeshi Hashimoto, Shinzi Hashizume, Yoshio Ikegami, Shin'ichi Fukumizu