Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6962952 | Process for production of modified carbon black for rubber reinforcement and process of production of rubber composition containing modified carbon black | Tetsuji Kawazura | 2005-11-08 |
| 6927255 | Rubber composition | Tetsuji Kawazura, Masao Nakamura | 2005-08-09 |