Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5137577 | Cement additive | Masanori Iizuka, Tatsuya Mizunuma, Fuzio Yamato, Toshiharu Kojima | 1992-08-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5137577 | Cement additive | Masanori Iizuka, Tatsuya Mizunuma, Fuzio Yamato, Toshiharu Kojima | 1992-08-11 |