Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6635204 | Process of making hollow fibers and treating fibers | Kazuhiko Tanaka, Hitoshi Nakatsuka, Nobuhiro Koga, Masao Kawamoto, Tateki Yamakawa +2 more | 2003-10-21 |
| 6552123 | Thermoplastic polyvinyl alcohol fibers and method for producing them | Takashi Katayama, Kazuhiko Tanaka, Naoki Fujiwara, Tomoaki Kimura, Nobuhiro Koga +5 more | 2003-04-22 |