Patents by Inventor Izuru TAKETA

Izuru TAKETA 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 PRODUCING CARBON FIBER BUNDLE
    Publication number: 20220290337
    Abstract: The present invention provides a method for producing a carbon fiber bundle, the method including steps (b) to (e) described below: (b) an oil agent application step of applying a silicone oil agent to a precursor fiber bundle to produce an oil-agent-attached precursor fiber bundle; (d) a stabilization step of subjecting the oil-agent-attached precursor fiber bundle to an oxidization treatment to produce an oxidized fiber bundle; and (e) a carbonization step of carbonizing the oxidized fiber bundle, wherein the silicone oil agent has a skin over time at 250° C. of less than 40 minutes.
    Type: Application
    Filed: August 27, 2020
    Publication date: September 15, 2022
    Applicants: TEIJIN LIMITED, WACKER CHEMIE AG
    Inventors: Hiroko YOKOYAMA, Eiji KINOSHITA, Satoshi OHNO, Izuru TAKETA