Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6838517 | Method for producing ethylene-vinyl acetate copolymer and saponified product thereof | Takaharu Kawahara | 2005-01-04 |
| 6800687 | Method and apparatus for producing ethylene-vinyl acetate copolymer saponification product | Takaharu Kawahara, Yukihiro Ohara, Toshio Tuboi | 2004-10-05 |
| 6538064 | Method for producing ethylene-vinyl alcohol copolymer resin composition | Takaharu Kawahara, Toshio Tuboi, Naoyuki Himi | 2003-03-25 |