Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5298576 | Sizing agent for carbon fiber and carbon fiber treated with said sizing agent | Atsushi Sumida, Toyokazu Minakuchi, Motoi Itoh, Hiroshi Hasegawa, Manabu Saito | 1994-03-29 |
| 4219457 | Resinous composition for surface-treating reinforcing fibers and surface-treating process | Ryuichi Itoh, Toshihiro Iwatsuki, Shigehiro Ohuchi | 1980-08-26 |