Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4560734 | Polypropylene fibers having improved heat-shrinkability and tenacity | Hideshi Sakamoto | 1985-12-24 |
| 4482595 | Primary backing of foamed polypropylene tapes and tufted carpets produced from the same | Hideshi Sakamoto, Tomio Yamazawa, Junichi Yamaguchi | 1984-11-13 |