Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6800687 | Method and apparatus for producing ethylene-vinyl acetate copolymer saponification product | Takaharu Kawahara, Yukihiro Ohara, Tetsuya Hikasa | 2004-10-05 |
| 6743891 | Method for producing ethylene-vinyl alcohol copolymer resin composition | Hiroshi Kawai, Masao Hikasa, Takaharu Kawahara | 2004-06-01 |
| 6686405 | Process for producing ethylene-vinyl alcohol copolymer resin, process for producing pellets and resin pellets | Takaharu Kawahara, Hiroshi Kawai, Yukihiro Ohara, Masao Hikasa | 2004-02-03 |