Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6756331 | Lactic-acid base resin composition and molded articles made therefor | Tomoyuki Kasemura, Naoto Kuriyama, Shoji Obuchi, Takayuki Watanabe, Yasuhiro Kitahara | 2004-06-29 |
| 6677333 | 2H-phthalazin-1-one derivatives and drug containing its derivatives as active ingredient | Takuya Seko, Jun Takeuchi, Masao Naka | 2004-01-13 |
| 6678376 | Echo canceling apparatus | Ikuo Kajiyama | 2004-01-13 |