Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4844315 | Yarn-threading method and device | Toshihide Sekido, Masafumi Ogasawara | 1989-07-04 |
| 4833758 | Apparatus for preparing a nonwoven web | Masafumi Ogasawara, Seishiro Ichikawa | 1989-05-30 |
| 4817843 | Suction device for yarn-threading | — | 1989-04-04 |