Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874646 | Ultrafine tube and method for its production | Yoshikazu Tsujino, Masakazu Sakata, Takanori Fujii, Yukinori Kuwano | 1989-10-17 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874646 | Ultrafine tube and method for its production | Yoshikazu Tsujino, Masakazu Sakata, Takanori Fujii, Yukinori Kuwano | 1989-10-17 |