Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5691424 | Heat-resistant molded article of lactic acid-base polymer | Kazuhiko Suzuki, Takayuki Watanabe, Yasuhiro Kitahara | 1997-11-25 |
| 5679767 | Purification process of aliphatic polyester | Hiroshi Suizu, Masatoshi Takagi, Akihiro Yamaguchi | 1997-10-21 |
| 5637631 | Preparation process of degradable polymer | Ikumi Kitada, Chojiro Higuchi, Akihiro Yamaguchi | 1997-06-10 |
| 5630849 | Dyeing method | Taiji Kameoka, Isamu Kawamura, Isamu Ghoda, Keisuke Takuma, Akihiro Yamaguchi +1 more | 1997-05-20 |