Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882388 | Rubber composition | Takashi Nakagawa, Sigelu Yagisita | 1989-11-21 |
| 4820774 | Elastomer composition | Hiroyoshi Takao, Yoshio Tanimoto, Kiyosi Ikeda | 1989-04-11 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882388 | Rubber composition | Takashi Nakagawa, Sigelu Yagisita | 1989-11-21 |
| 4820774 | Elastomer composition | Hiroyoshi Takao, Yoshio Tanimoto, Kiyosi Ikeda | 1989-04-11 |