Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5639421 | High-hardness precipitation hardening steel for metallic mold | Toshihiro Kitagawa | 1997-06-17 |
| 5076872 | Process for preparing a flexible composite material | Takao Nakagawa, Hiroyuki Uchino, Mihoko Yamashita | 1991-12-31 |
| 4770915 | Flexible composite material and process for preparing same | Takao Nakagawa, Hiroyuki Uchino, Mihoko Yamashita | 1988-09-13 |