Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7439300 | Polyvinyl alcohol based polymer and method of manufacturing the same | Yoshihiro Tokuda, Jin Tokuyasu, Kimiko Miyata, Naoki Fujiwara, Takeshi Kusudou | 2008-10-21 |
| 5811488 | Polyvinyl alcohol powder | Naoto NARUMOTO, Takanori Kitamura, Yuji Takenouchi, Takanori Tsugiya | 1998-09-22 |
| 5352750 | Process for producing ethylene-vinyl ester copolymers, ethylene-vinyl alcohol copolymers, and process for producing shaped articles therefrom | Takanori Kitamura, Fumio Nakahara, Katsumi Shimizu, Akimasa Aoyama, Takeshi Moritani | 1994-10-04 |
| 5240997 | Process for producing ethylene-vinyl alcohol copolymers | Takanori Kitamura, Fumio Nakahara, Katsumi Shimizu, Akimasa Aoyama, Takeshi Moritani | 1993-08-31 |