Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5320820 | Carbon black for tire tread rubber | Yasuharu Yoshii, Hitoshi Ue | 1994-06-14 |
| 5321072 | Rubber composition | — | 1994-06-14 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5320820 | Carbon black for tire tread rubber | Yasuharu Yoshii, Hitoshi Ue | 1994-06-14 |
| 5321072 | Rubber composition | — | 1994-06-14 |