Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4997888 | Weatherability and adherence of polypropylene | Tetsuo Sekiguchi, Yutaka Nakahara, Masaki Yagi | 1991-03-05 |
| 4994529 | Weatherability and adherence of polypropylene | Tetsuo Sekiguchi, Masaki Yagi, Yutaka Nakahara | 1991-02-19 |