Granted Patent
Utility
US 6,040,051 · App. 09/011,064
Carbon fibers and process for their production, and fiber-reinforced resin composition employing them
Inventors:
Iwao Yamamoto, Eisaku Kakikura, Masami Kinouchi, Yoshiaki Inoue, Tamotsu Shiotsu
Patented Case
View Patent ↗
Granted: Mar 21, 2000
Filed: Feb 10, 1998
Inventors
Iwao Yamamoto
Eisaku Kakikura
Masami Kinouchi
Yoshiaki Inoue
Tamotsu Shiotsu
Assignee (at issue)
MITSUBISHI CHEMICAL CORPORATION
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.