Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4342711 | Method of manufacturing hollow fiber | Yasushi Joh, Masahiro Yamazaki, Shigehiko Oikawa, Yoshihiro Makuta, Chizuko Hayashi | 1982-08-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4342711 | Method of manufacturing hollow fiber | Yasushi Joh, Masahiro Yamazaki, Shigehiko Oikawa, Yoshihiro Makuta, Chizuko Hayashi | 1982-08-03 |